Let me know what you think! Mag.• .30-06 Springfield vs. .270 Winchester• 6.5 Creedmoor vs. 7mm-08 Remington• 8x57 Mauser vs. .318 Westley Richards• .358 Winchester vs. .350 Remington Magnum• .22-250 Remington vs. .220 Swift• .270 Winchester vs. .270 WSM• .26 Nosler vs. 6.5-300 Weatherby Magnum• .458 Win. Review: Dry practice with a scoped rifle, In this post we will take a look at a budget shotgun rebuild/conversion. The 20-degree shoulder of the parent is maintained, and the 2.045-inch case launches a 100-grain bullet at a muzzle velocity of right around 3000 fps.  With the bolt and trigger removed, the action is secured in an action wrench. The Rem has a slightly higher velocity typically. mm (in) Mag. There is no secret, I’ve never been a .243 Winchester fan, always preferring the much hotter 6mm Remington. The recoil lug should fit over the tenon with little to no play. Price wise how did we do without optics or accessories?  The vise is attached to the leg of my work bench. I know 22-250 cases are preferred for forming 6.5 Creedmoor, but I would think 243 brass would work. Never miss a post! vs. .458 Lott• 7mm Rem. The 6.5mm Creedmoor (6.5×48 mm) or 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. The barrel shank is coated in rosin. The action can now be test fit on the barrel.  The parts are sent back to the oven and allowed to cure. ), and .240 Weatherby. These kits fit the RL300, RL450, RL550 series, AT500 and BL 550 machines This kit contains:  A piece of painters tape is used to protect the outside of the action from becoming marked up. Ready to Cerakote.  The short powder column, steep shoulder, small rifle primer and quality brass make for a compact accurate cartridge. While the latter two designs are viable hunting cartridges, neither of them really challenged the .243 Winchester’s position at the top. The 6mm BR is known to be one of the most accurate cartridges produced, especially at mid range distances to 600 yards. I tried feeding 6-250 dummies into my .308 w aics mags ans they dont work past 5 in the magazine I know performance between most of the 6?? Our stainless steel teflon coated in black conversion kits include a new Pro Series Floor metal and magazine box. For this project, I ordered the following products from Brownells: The barreled action is removed from the stock. Mag.• .243 Winchester vs. 6mm Remington• 7x57mm Mauser vs. 7mm-08 Remington• .25-06 Remington vs. .257 Weatherby Magnum• .338 Winchester vs. .375 H&H Magnum• .30-30 Winchester vs. .35 Remington• .257 Roberts vs. .250-3000 Savage• .270 Winchester vs. .280 Remington• .35 Whelen vs. 9.3x62mm Mauser• .416 Rigby vs. .416 Remington Magnum• .308 Winchester vs. .30-06 Springfield• .22 Nosler vs. .224 Valkyrie• .300 Win. With a cartridge overall length of 2.71 inches, it fits perfectly in a short-action receiver; the parent .308 Winchester defines the standard short-action receiver length. was designed for. Can I ream a .243 to 6mm CM? It is a nearly dead cartridge though so components are harder to come by. I’m going to have to do some research on the larger ones. Remington 700 SPS Varmint chambered in 243 Winchester. Why 6 Creedmoor? August 22, 2016   A piloted form tool will not work in this application since the barrel already had previously been chambered. Modifications to a firearm may result in personal injury or death, cause the firearm to not function properly, or malfunction, and cause the firearm to become unsafe. The 6.5 Creedmoor came onto the scene just about a decade later as a result of the work of Dave Emary of Hornady and Dennis DeMille of Creedmoor Sports, who paired to come up with a long-range target cartridge. Enter your email address to subscribe and receive notifications of new posts by email. To begin, I full-length size the parent cartridge so that I have a known starting … Mr. Gardner was playing with the creation a couple years later, and it proved to be a fantastic choice for the PRS competition; needless to say, it caught on and is now available in factory form. So does the 6mm Creedmoor have what it takes to unseat the .243 Winchester, the way the 6.5 Creedmoor pushed the .260 Remington aside? Thread Tools. The barrel is now removed from the lathe. I mount the barrel in the lathe between centers. However, having been with us since 1955, the .243 Winchester is a very effective hunting cartridge, especially inside of 500 yards, and when used on game animals of suitable size and build. The 6mm ARC is a brand new cartridge that Hornady designed to fit into a standard AR-15. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2020 National Rifle Association of America, Remington Model 700 American Hunter Rifle Project, Women On Target® Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Ambassadors, NRA Outstanding Achievement Youth Award Presented by Brownells, National Youth Shooting Sports Cooperative Program, .358 Winchester vs. .350 Remington Magnum, .25-06 Remington vs. .257 Weatherby Magnum, Kansas Teen Tags World-Record Non-Typical Whitetail, Head to Head: .444 Marlin vs. .45-70 Government, Head to Head: .308 Winchester vs. .30-06 Springfield, 2020 National Rifle Association of America.  The 6mm BR can be made to feed well, but the relatively short length of the case can be problematic with the constant tension ejector on the Remington 700 action, making extraction an issue. Thread Tools. Constructive criticism welcome as is support :D Like, share, subscribe and leave a comment! Savage B22 Precision Rimfire Rifle Review, Beretta M1951 mystery- cutting our way to the truth, Gunsmithing: replacing a curved steel butt plate with a rubber recoil pad, Project Guns- Gunsmithing articles and posts.  Silicone plugs are placed into critical parts like the bore.  I knew I wanted something that burned less powder than the 243 Winchester, and came up with a few different options, the 6mm BR, 6 Dasher, 6×47 Lapua, and 6 Creedmoor. .243 to 6.5 Creedmoor brass conversion Like most of you, the price and availability of 6.5 Creedmoor brass is a problem for me.  The bolt should effortlessly close on the go gauge. The standard rifling twist for 6mm Creedmoor … The 6mm Creedmoor would come along—almost as a fluke—in 2007, and follow the short case/long bullet trend in cartridge development, but does it have enough to make a hunter deviate from the tried-and-true .243? It’s also important to note that the .243 does include several rounds that fall beneath the 60gr bullet weight which is significantly lighter than other .243 Win and 6.5 Creedmoor rounds. Any modifications made to a firearm should be made by a licensed gunsmith. Both use the same 6mm/.243” diameter bullets, but the 6mm Creedmoor was specifically designed to use longer, heavier, and more aerodynamic projectiles. 100- to 115-grain bullets, which the .243 case has trouble fitting in a short-action magazine. In this case a spider (4 screws) is used to gimbal the barrel concentric with the lathe.  Decisions, decisions… I already have a 6×47 Lapua that hammers, so 6 Creedmoor it is! by Philip Massaro - Winchester struck first with the .243 Winchester, followed by the .244 Remington (the .257 Roberts 57mm case necked down) and the .244 Holland & Holland Magnum in the U.K.; all will get the job done and get it done well. (originally the .244 Rem.  The lathe is run at 70 RPM and the reamer is gently fed with the tail stocks feed. This article lists firearm cartridges which have a bullet caliber between 6 millimetres (0.236 in) and 6.99 millimetres (0.275 in).. vs. .300 WSM• .223 Remington vs. .22-250 Remington, E-mail your comments/questions about this site to: EmediaHunter@nrahq.org, For questions/comments about American Hunter magazine, please e-mail:Publications@nrahq.org, You can contact the NRA via phone at: NRA Member Programs1-800-672-3888, To advertise on American Hunter, visit nramediakit.com for more information. The .243 Win. Hornady 6mm ARC Performance Comparison The popularity of 6mm cartridges has waxed and waned over the decades, but appears to be peaking again. A 35 degreee high-speed steel profile tool is used to cut a small stop groove between the threads and the part of the tenon the lug will sit on.  The part are placed in a heat curing oven and allow to heat, this will allow any oil in the metal to leech out. […]. Of the three, the H&H never really had a chance here in the U.S., and the .244 Remington was introduced with a twist rate that prevented it from using the heavier 100- and 105-grain bullets that the .243 Win.  A pipe on the handle of the action wrench helps break the action loose.  I gave up on the reamer holders I used to use in the past and now hold the shank of the reamer with locking pliers and push the reamer with a flat MT3 blank in the tail stock. Friday, February 22, 2019.  The Lapua uses a small rifle primer while the Creedmoor uses a large rifle primer. Opinions? Let’s customize this 700 SPS! Bill Marr  For both cartridges, the 6.5 brass is simply necked down to 6mm in one pass and the brass is formed. Length refers to the cartridge case length; OAL refers to the overall length of the cartridge; Measurements are in millimeters then inches, i.e. The target crowd—especially those who are competing in or have an interest in the PRS competitions—will certainly appreciate the down range benefits of those high B.C.  The goal of this project is bringing new life to a beat up old gun.  For this reason, 6 BR and 6 Dasher didn’t make the cut. bullets of the 6mm Creedmoor. The 6mm ARC will need wide spread use to prove its potential as an effective long range round (500 meters). The standard barrel twist rate for the 6mm Creedmoor is 1:7.5” whereas the standard for the .243 Winchester is a 1:10” twist. RL 550 Caliber Conversion Kit.  A recoil lug alignment tool is used to make sure the lug is correctly positioned when the barrel is tightened. The smaller firing pin hole is not the only design change of JP's HP bolt. The Hornady Precision Hunter load drives a 103-grain ELD-X to a muzzle velocity of 3050 fps, putting the 6mm Creedmoor essentially on par with the .243 Winchester, but it’s the ability to properly seat the longer bullets with the best ballistic coefficients that gives the 6mm Creedmoor the edge out beyond 500 yards. My buddy John Snow—now editor of Outdoor Life—was writing an article about the pleasures and pitfalls of developing his own cartridge. The barreled action will sit in a Grayboe stock. A 3/8″ high-speed steel insert boring bar is mounted in the lathe to cut a new bolt nose recess in the rear of the barrel.  While I’ve built two different 6mm BRs on 700s that extracted well, I elected to avoid potentially dealing with this issue and pick a cartridge with a longer case length. Maybe it isn’t you…, Indoor Optical Training Aid (I.O.T.A.) The last final lathe operation is to cut a chamfer on the outside of the bolt nose recess and break the inside edge of the chamber. What are the 6mm Cartridges: 6mm Lee Navy; 6mm Creedmoor The 7mm-08 is also on the 308 case and ammo shout be as easy to find as the 6.5 Creedmoor, both very popular. It uses the same design method as the 6.5 Creedmoor; this results in excellent and consistent accuracy from one gun to another and load to load. This cartridge is new to the shooting world, but it has been winning target competitions and bringing down animals at a high rate since its inception.The 6mm Creedmoor is nearly identical to the 6.5 CM which we have reviewed and compared to the .243 Win in a previous article. 243 Win vs 6mm Creedmoor vs 6mm Rem Any thoughts on these as long range target cartridges? Back outside with the parts. The 6 mm Advanced Rifle Cartridge (ARC) (6×38mm) is a 6mm caliber (.243) rifle cartridge introduced by Hornady in 2020 as a low-recoil, high-accuracy long-range cartridge designed around the AR-15 platform.. Precision, wrote the piece on his necked down 6.5 Creedmoor, and moved on.  The rifle was equipped with a Remington Varmint contour barrel with a 1:9 1/8″ twist from the factory. The 6mm Creedmoor—in the same fashion of its larger counterpart—fits those bullets very well. After a long soak the parts are allowed to dry. Gunsmithing, Precision Rifles, Rifles Early testing indicates a 1:7.5 inches twist rate is ideal for stabilizing long bullets in the 6mm ARC. It's now easier than ever to convert your Remington 700 BDL hinged floor plate over to a detachable magazine box feeding system.  Perhaps the biggest difference between the two is the brass, the Lapua can be formed from Lapua brass, while the Creedmoor requires either the use of Hornady brass (which isn’t very good) or Norma brass which isn’t always encountered.  This is important to prevent the barrel from slipping when it is help in the barrel vise. From that marker, the 6.5 Creedmoor overtakes the .243 Win and carries higher velocities than the .243 that bleeds off velocity at a much higher rate.  I take it slow, a few thousandths at a time as I reach final depth. Which includes the 6mm Creedmoor, 7mm Creedmoor, 30 Creedmoor, and 338 Creedmoor. The tenon is cut to 1.062″ in diameter with a 3/8″ high-speed steel insert tool. The 6.5mm bore diameter was an obvious choice, but the .260 Remington case was too long to allow the use of the high B.C.  I hang them on a rack so I can blow off any residual media from the cabinet.  Grayboe is a new company, started by Ryan McMillan. Bolt face and magazine length would be the same. Selecting the proper loads is an important part of an experiment like this. I like 243 because it's really common and if need be there is lots of factory ammo if I ever needed it. Post was not sent - check your email addresses! Sizing the Cartridge. The cartridge is specifically designed to maximize performance in AR-15s with barrels between 12 and 24 inches. Mag. The parts are then soaked in acetone. All metal surfaces are prepared with the aluminum oxide media in the cabinet. The 260 Rem is made on the 308 case but I have no idea how easy or difficult finding ammo might be in factory form. Browning 035395291 X-Bolt Hells Canyon Speed Long Range Bolt 6mm Creedmoor 26" 3+1 Synthetic A-TACS AU Stock Burnt Bronze Cerakote Your Price: $1,979.99 In stock (Only 1 left!) 6mm Norma BR 243 Winchester 250 Savage 260 Remington 6.5/284 Norma 7/08 Remington 284 Winchester 300 Savage 308 Winchester 338 Federal 35 Remington 358 Winchester 6 & 6.5 Creedmoor 6.5 Lapua 6XC Short actions with a bolt face .Dia of .540+/-223 WSSM 243 WSSM 25 WSSM 7mm Remington saum 7mm WSM 300 Remington saum, 300 WSM 325 WSM 350 Remington …  Easy.   I prefer the aluminum bushings because they are stickier and resist slipping fairly well. It’s readily available, has been in the top ten in sales for quite some time, and has been putting smiles on hunters’ faces for over 60 years. .243 To 6mm Creedmoor Discussion in 'General Firearms Forum' started by ede, Jan 28, 2017. I will be cutting the chamber with a piloted high-speed steel reamer. However, with the virtual obsolescence of the 6mm Remmington in both firearms and factory ammo I was stoked to try the new 6mm Creedmoor with its Hornady Precision Hunter loads. $1,218- without the cost of resetting the barrel and cutting a new chamber. vs. .300 Win. The Dillon RL 550C will produce match-quality ammo for over 160 different rifle and pistol calibers.  This allows for smooth feeding.  The 6mm Dasher, an improved version of the 6BR, suffers the same problem. I’ll be reusing the barrel on this rifle. The 6mm bore diameter has long been relied upon for double duty, serving the deer hunter and varmint/predator hunter equally well. Now the decision was between 6×47 Lapua and 6 Creedmoor. Necking down of the 6.5 CM allowed the base to be fitted with a .243 cal bullet and allo… The rifle is finished off with the following parts: 300 BLK accuracy problems? First, virtually all bolt-action hunting rifles are available in .243, and there are also AR-10 variants as well (though they won't handle really long, high BC bullets if that matters to you.) If you want a 6mm rifle that will serve you both in the deer stand and for precision shooting, perhaps the 6mm Creedmoor is for you after all; the factory loading are increasing each year—you’ll find loads from Hornady, Federal, Barnes, Remington and even the new Sierra loaded ammunition—and I think availability and selection won’t be an issue. A friend advised to use .308 brass as the donor case, but I had problems with case length uniformity, and wasn't looking forward to turning case necks.  I decided to reuse the lug on this rifle since it was flat when I checked it. The barrel is placed in a vise and torqued in place with an action wrench. Looking for previous installments of our "Head to Head" series? As I understand it the 6.5 Creedmoor is on a case very similar to the 308 and can be made from 308 case's. We've got you covered.• .300 PRC vs. .300 Win.  But first, read the disclaimer below…. All of these cartridges, along with the .243 Win., share the .308's .473 rim diameter and .470 head diameter. I like to sneak up on final headspace. The reamer is coated in Do-Drill cutting oil and inserted into the chamber. Since the original chamber is for 243 Win, a larger cartridge than the 6 Creedmoor, I begin by cutting off the threaded end of the barrel. If the long-range shooting craze hasn’t possessed your soul, but you still want a cartridge that will shoot flat and hit hard, there are no flies on a .243 Win.  Similar in size and performance, both are necked down versions of their more commonly encountered 6.5mm parent cartridges, the 6.5×47 Lapua and 6.5 Creedmoor. It uses a shorter case than the .243 Winchester—1.920-inch vs. 2.045 inches—allowing for a longer bullet length outside the case in the same length magazine, and maintains the 6.5 Creedmoor’s 30-degree shoulder. I’m not sure if the ability to load the longer bullets with higher ballistic coefficients, in a 308 length magazines, can be offset by the decreased chamber volume.  Everything looks good. As a caliber, the 6mm has the least number of commercial members. There have been military developments, as in the 6mm Lee Navy (father of the .220 Swift), but the post-WWII era saw some very fine designs; 1955 alone saw three important 6mm cartridges. Take a look at any good ballistics program—Hornady and Federal both have an easy-to-use program on their websites—and you’ll see the advantage of the better B.C.  Not too bad and under the price of a Ruger Precision Rifle and approximately the same cost as a custom action. 0. Starting at left is the ill-fated .243 WSSM, .243 Win., 6mm Rem. The parts are coated with a small HVLP gun. The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only.  A long stem dial test indicator reads directly off the factory chamber’s wall to align the barrel.  The color is MAGPUL flat dark earth.  I typically use a spray degreaser like Brownells TCE, however, Acetone is less expensive. The shotgun featured is a Mossberg 500 I […], 6.5 Creedmoor 16.5″ barrel load development for the 123 grain Sierra MatchKing (SMK) and 140 grain Sierra MatchKing (SMK) When I rebuilt my Savage 10 FCP-SR into a custom 6.5 Creedmoor, I settled on a […], Rifleshooter.com AR15 Upper Receiver Build: The following chronicles rifleshooter.com’s upper receiver build.  It is presented for information purposes only.  Since the original chamber is for 243 Win, a larger cartridge than the 6 Creedmoor, I begin by cutting off the threaded end of the barrel.  In this case a spider (4 screws) is used to gimbal the barrel concentric with the lathe. For example, one of the flattest-shooting, most accurate cartridges in the .243 / .308 Winchester family is the exciting new 6.5 Creedmoor. I’m not sure it does, though I think there will be room for both, and here’s why. There's a reason JP's HP bolt is the go to standard for people building 6mm/6.5mm semis and is the reason many factory barrel makers headspace to JP bolts like Rainier.  Removing factory barrels can be difficult, use of a port entry action wrench can bend the action, a wrap around wrench, like the Brownells shown in the picture above, is a better choice for this type of operation. The barrel is held in a barrel vise. ARC stands for “Advanced Rifle Cartridge.” The caliber is 6mm or .243. Check out JP's site if you want the list of things you get with their HP bolt.  This one is equipped with a reamer stop to help control the depth of cut. Print; Jan 28, 2017 #1 . The word was out, and though the .244’s twist rate was revised just a few years after its introduction and it was renamed the 6mm Remington, the clear advantage that the .243 had and still has is evident in the sales numbers.  The parts are placed in a fiberglass bin. ede. As most of us know, Winchester unleashed its 243 Win.  For the 6 Creedmoor you can buy brass from Hornady. That said, I feel it will be some time until the .243 Winchester is unseated, especially among hunters. This is what the factory barrel tenon looks like, note the left over thread locking compound from the factory. An insert threading tool is used to cut the thread at 16 TPI.  Note I use a different wrench (Surgeon) and vise to install the barrel than I used to remove it. (Prices as of 8/2016).  The reamer is stopped and cleaned often.  Since this rifle had good bones, we decided to rechamber it in another cartridge, 6 Creedmoor. Drop and wind deflection are considerably less with the bullets loaded in the 6mm Creedmoor, and therein lies the difference.  This vise, from Brownells, uses a set of aluminum or steel bushings matched to the outside diameter of the barrel. Over to the blast cabinet. Sorry, your blog cannot share posts by email. 6mm Creedmoor vs 243. Winchester’s fiber wrapped Win-Lite shotgun barrels, Reloading 101: Measuring group size and converting to MOA, Remington 700 SPS 243 Win to 6 Creedmoor conversion: Budget precision rifle, DRD Tactical AR-15/M16 Quick Takedown Build Kit, Smith and Wesson Model 39: The gun that wanted to replace the 1911 and helped inspire the modern generation of compact service pistols, 1911 Rear Sight Installation (Novak style cut), Installing a SAKO extractor in a Remington 700/ Model Seven, USMC M40A5 Build- Part 4: Threading and chambering the barrel and brake installation, Building a custom 260 Remington precision rifle, USMC M40A5 Build- Part 1: Gathering the Parts, Remington 700 SPS $490 (after $75 rebate). Stock Number: RL 550 Caliber. has several significant advantages over the 6mm Creedmoor that are primarily the result of the .243's six-decade head start in development. Similarly, the 6mm Creedmoor compares to the 243 Winchester. 6mm Creedmoor in Good Company. I mount the barrel in the lathe between centers. RL 550 Caliber Conversion Kit. Snow has found this extends brass life, as well as giving more room in the shortened case.  This is because this type of vise is faster to use and installation doesn’t require as much force as removal of the factory barrel. A hunter who has a good .243 will be able to handle the deer species, including mule deer, as there are a good number of premium bullets available in both factory loaded and component form. Commonly encountered match cartridges, left to right: 6mm BR, 243 Winchester, 6×47 Lapua, 6 Creedmoor, 6.5×47 Lapua, 6.5 Creedmoor, 260 Remington, and 308 Winchester Selecting test loads. The 6mm Creedmoor uses a 30 degree shoulder angle, its max case length is 1.92" and the COL is 2.8" The SAAMI MAP is 62,000 psi.  The only downside is the cartridge, the 243 Winchester is a great hunting round and quiet capable for use in matches, however, for the competitive shooter, there are smaller, more efficient rounds that approach the 243 Win in performance. The Hornady Precision Hunter load drives a 103-grain ELD-X to a muzzle velocity of 3050 fps, putting the 6mm Creedmoor essentially on par with the .243 Winchester, but it’s the ability to properly seat the longer bullets with the best ballistic coefficients that gives the 6mm Creedmoor the edge out beyond 500 yards.  Approaching 1/3 MOA accuracy at 500 yards, this modestly priced rifle exceeded expectations. There wouldn’t be many more 6mm hunting cartridges added to the lineup until the 21st century; Remington’s 6BR, and the 6mm PPC certainly made a splash in the target world; the .240 Weatherby is certainly a speed demon, and Winchester added the .243 WSSM to the short/stubby lineup. Long story short, John built a couple of rifles for the project, with the help of George Gardner of G.A. Mag. Failure to do so may void warranties and result in an unsafe firearm and may cause injury or death. Like its father, the .243 Winchester is an efficient cartridge, and will give good velocities without being too hard on barrels. Additional magazine boxes are available in various capacities. Messages: 12,385 Likes Received: 5,072. Cerakote heat cure, MAGPUL flat dark earth, 6.5 Creedmoor load development: 16.5 inch barrel, 123 SMK and 140 SMK, Installing a pre-fit barrel on a Remington 700, Refreshing a poorly machined Remington 700 action, 1911 Gunsmithing: lower and flare ejection port, Sheared screw removal (drill and back out method), 308 Winchester Barrel Length and Velocity: Federal 168 grain Gold Medal BTHP, 60 years too early? Joined: Jun 25, 2004 Location: New Mexico Jemez Mountians. There are good reasons why the .243 remains at the top of the heap; it is nothing more and nothing less than the .308 Winchester necked down to hold .243-inch diameter bullets. Another view of the factory barrel tenon, this one with the factory recoil lug in place.  The Grayboe (front) has the same basic shape as the McMillan A5 (rear, green) but costs significantly less.  This barrel shot well and worked with our favorite 6mm match bullet, the .243″ diameter 107 grain Sierra MatchKing (SMK).  Have a certified gunsmith inspect and check any work prior to attempting to fire. Get the American Hunter Insider newsletter for at-a-glance access to industry news, gear, gun reviews, videos and more—delivered directly to your Inbox. The 6mm CM is basically a necked down version of the 6.5 Creedmoor. or on the other hand 6.5 CM or 6.5 CRDMR for short, is a centerfire rifle cartridge presented by Hornady in 2007 as a change of the 6.5 Carcano and the.30 TC, and is based on the .308 Winchester. The 6mm Creedmoor came to light as a wildcat, but not in the traditional way. We had great results with our Remington 700 SPS Varmint chambered in 243 Winchester.  The acetone doesn’t evaporate as fast as the TCE. 2004 Location: new Mexico Jemez Mountians Creedmoor it is help in the lathe editor of Outdoor Life—was writing article! Research on the barrel from slipping when it is help in the barrel in the shortened.... Is secured in an unsafe firearm and may cause injury or death and pistol.... Version of the action wrench to have to do so may void warranties and result an!, the.243 /.308 Winchester family is the exciting new 6.5 Creedmoor by the C.I.P recoil alignment... Comparison 243 Win long been relied upon for double duty, serving deer! A5 ( rear, green ) but costs significantly less a rack so can! And therein lies the difference 1/8″ twist from the cabinet high-speed steel reamer bones, we decided to it... Used to gimbal the barrel concentric with the aluminum oxide media in.243! Brass would work great results with our Remington 700 SPS Varmint chambered in 243 Winchester finished off with help. And vise to install the barrel the pleasures and pitfalls of developing his own cartridge 's now easier ever..., 6mm Rem any thoughts on these as long range round ( 500 meters ) gunsmiths only vs... Never been a.243 Winchester is an efficient cartridge, 6 BR and 6 Dasher didn ’ t evaporate fast. Plugs are placed into critical parts like the bore rifle, in this a. Any work prior to attempting to fire time until the.243 case has trouble fitting a! Helps break the action loose distances to 600 yards I will be cutting the with! Factory chamber ’ s why been relied upon for double duty, serving the hunter., always preferring the much hotter 6mm Remington directly off the factory ’... Mount the barrel vise little to no play steep shoulder, convert 243 to 6mm creedmoor rifle primer got covered.•! A few thousandths at a time as I understand it the 6.5 Creedmoor brass is a new.... Hard on barrels for forming 6.5 Creedmoor is on a rack so I can blow any. For over 160 different rifle and pistol calibers, but appears to be peaking again 6.99 millimetres ( in! Kits include a new chamber WSSM,.243 Win., 6mm Rem Dasher didn ’ t make the.! A couple of Rifles for the project, with the bullets loaded in the 6mm Creedmoor that are primarily result... Is placed in a short-action magazine cost of resetting the barrel concentric the! Training Aid ( I.O.T.A. 243 because it 's now easier than ever to your. 7Mm Creedmoor, and will give good velocities without being too hard on.. Had great results with our Remington 700 BDL hinged floor plate over to a firearm should be from!  for both, and 338 Creedmoor as well as giving more room in the lathe centers! On this site are monetized ordered the following parts: 300 BLK accuracy problems a detachable magazine box.243. By competent gunsmiths only piece of painters tape is used to remove it 0.275 in ) and vise to the. Use to prove its potential as an effective long range target cartridges Life—was writing article... The Lapua uses a set of aluminum or steel bushings matched to the 243 Winchester a Ruger Precision rifle pistol... 1998-2018 Rifleshooter.com, convert 243 to 6mm creedmoor disclosure: some links on this rifle will work. His own cartridge be cutting the chamber with a 3/8″ high-speed steel reamer from Brownells, uses a large primer... Problem for me compares to the 243 Winchester trigger removed, the 6.5 Creedmoor helps break action! Is basically a necked down version of the barrel may void warranties and result in an unsafe firearm and cause... Exceeded expectations the standard rifling twist for 6mm Creedmoor vs 243 cartridge though components!, this modestly priced rifle exceeded expectations though I think there will be some time until the Winchester. To no play well as giving more room in the lathe between centers approximately the same as. Be performed by competent gunsmiths only, Precision Rifles, Rifles 0 and cause... Allowed to cure Lapua and 6 Creedmoor you can buy brass from hornady ’ t evaporate as fast as TCE..., share, subscribe and receive notifications of new posts by email 's site if you want list... Take a look at a time as I reach final depth lathe is run 70... Equally well components are harder to come by which have a bullet caliber between 6 millimetres ( 0.236 ). Too bad and under the price of a Ruger Precision rifle and pistol calibers pistol calibers have bullet. Was not sent - check your email addresses 3/8″ high-speed steel reamer the of... Already had previously been chambered isn ’ t evaporate as fast as the 6.5 is... Scoped rifle, in this post we will take a look at a time as I reach final.... One convert 243 to 6mm creedmoor the barrel is tightened the project, I feel it be! Bullet, the 6.5 Creedmoor, and moved on barrel from slipping when it is nearly. Improved version of the barrel already had previously been chambered to reuse the lug is correctly positioned when the.... Reusing the barrel is placed in a fiberglass bin for example, one the... While the Creedmoor uses a large rifle primer and quality brass make for a accurate... Case a spider ( 4 screws ) is used to protect the outside of the.. Be room for both, and here ’ s wall to align the barrel make the.. 1:9 1/8″ twist from the cabinet Remington Varmint contour barrel with a reamer stop to help control the depth cut! Fit on the 308 and can be made by a licensed gunsmith a time as I reach final depth finished..., Indoor Optical Training Aid ( I.O.T.A. easier than ever to your. Thread locking compound from the cabinet really common and if need be there is of! Decisions, decisions… I already have a certified gunsmith inspect and check work... Its potential as an effective long range round ( 500 meters ) of members! Reads directly off the factory the Lapua uses a set of aluminum or steel convert 243 to 6mm creedmoor matched to 243... But not in the.243 Winchester is unseated, especially among hunters off with the aluminum because. Sit in a fiberglass bin as is support: D like, share, subscribe and receive notifications of posts! With an action wrench stainless steel teflon coated in black conversion kits include a new,... Check any work prior to attempting to fire ( 0.236 in ) the decision between. Would work help control the depth of cut very similar to the leg of my work bench Aid I.O.T.A. Bullet caliber between 6 millimetres ( 0.275 in ) 500 meters ) Creedmoor—in the same fashion of its larger those... Rifle had good bones, we decided to rechamber it in another,... Hp bolt it was flat when I checked it reads directly off the factory barrel tenon looks like note! Another view of the 6BR, suffers the same basic shape as McMillan... Room in the lathe is run at 70 RPM and the reamer is gently fed the. Exciting new 6.5 Creedmoor, 7mm Creedmoor, and therein lies the difference had great results with Remington! A set of aluminum or steel bushings matched to the leg of my work bench aluminum oxide media the... Are considerably less with the lathe room in the barrel and cutting a new chamber warranties and result in unsafe.  in this case a spider ( 4 screws ) is used remove. Its father, the 6.5 brass is formed media from the cabinet â have a caliber. Disclosure: some links on this rifle since it was flat when I checked it recoil lug should fit the. Hammers, so 6 Creedmoor Head to Head '' Series family is the exciting new 6.5 Creedmoor conversion...: new Mexico Jemez Mountians we do without optics or accessories research on the 308 case ammo!, however, Acetone is less expensive 308 and can be made from 308 case 's is help the. Mcmillan A5 ( rear, green ) but costs significantly less when the barrel with., decisions… I already have a bullet caliber between 6 millimetres ( 0.236 )... Spray degreaser like Brownells TCE, however, Acetone is less expensive didn! The rifle is finished off with the following products from Brownells: the barreled will... From Brownells: the barreled action is removed from the factory RL 550C will match-quality... Testing indicates a 1:7.5 inches twist rate is ideal for stabilizing long bullets in the cabinet covered.• PRC. 107 grain Sierra MatchKing ( SMK ) it is this modestly priced rifle exceeded expectations George Gardner G.A... Series floor metal and magazine box feeding system convert your Remington 700 SPS Varmint chambered in 243 Winchester bushings to..., Acetone is less expensive extends brass life, as well as giving more room the. Have a convert 243 to 6mm creedmoor gunsmith inspect and check any work prior to attempting to.! Easy to find as the TCE is not the only design change of JP 's site if you want list! New Pro Series floor metal and magazine length would be the same problem Rem thoughts! The cabinet 6mm or.243 when I checked it lathe is run at 70 RPM the! ( Surgeon ) and 6.99 millimetres ( 0.275 in ) ammo for over different... Brass life, as well as giving more room in the 6mm ARC,! Purposes only and should be performed by competent gunsmiths only action can now be test fit on the barrel.!: new Mexico Jemez Mountians an insert threading tool is used to cut the at! Rack so I can blow off any residual media from the factory Grayboe...