Small mag is if you want fast loads. These would likely be a better fit regarding the cartridges overall length. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting, match shooting, and personal protection applications. 50 shots and accuracy goes to crap. How are you forming your brass from the Starline? Half of these are designed for hunting and the rest for match shooting. Theyre also made from the same material and use the same explosive. Another example would be a 16" 5.56 with a midlength gas as being sort . May 12, 2022 #1 Greetings all. 4 and 5 wandering .25 inch but printing a single hole. 6mm ARC: How it started, 6mm ARC: What is it So, while others wait to see what ammo options will populate their local gun store, a savvy reloader can be well on his way to making the Hornady 6mm ARC a staple on his reloading bench. What Is the 6mm ARC Cartridge? The cartridge was quickly accepted as a Sporting Arms and Ammunition Manufacturers Institute (SAAMI) standard, an excellent start to such a new cartridge. Because I just got back from the range and saw something I've never seen before. The action is an MPA/Curtis with a 60-degree bolt throw and fluted, Nitrided bolt body. The second set of data is loaded to a MAP of 62,000 psi, which is stated to be for use with bolt action guns such as the CZ 527. Personally, I think this is the perfect choice for an AR Velocities for long, high BC bullets are perfect for long barrel life and excellent accuracy. (Photo credit: Hornady) Hornady has the following to say about the cartridge: James Tarr gets to talk to Steve Wilson of Rock River Arms about their RBG. Efficient short, fat case design Once Fired 6mm ARC Brass | US Reloading Supply The ScenarL have a longer shape over the regular Scenar, for better exterior ballistics. From the CMMG Endeavor AR, Hornadys A-Tip Match over 25.5 grains of Hodgdon LEVEREVOLUTION produced the best group; .39 inch at 2,263 fps. Shown for comparison are some popular 6mm cartridges, including the (1) 6mm ARC, (2) .243 Winchester, (3) 6mm Remington and the (4) .240 Weatherby Magnum. We promise, were not spammy, which is why we only email you twice per month. Commercial 6mm ARC offerings will feature bullets selected to deliver ideal performance for hunting, match shooting and personal protection applications. Gain a deep knowledge of ballistic science and access our improved ballistic calculator. The loads I posted above were in a AR. Alliant's Reloader 15 would be another good option to consider. The usual cartridge neck diameter with a .243-inch bullet seated is 0.260 inch for a .262-inch chamber throat. I suggest considering CCI BR-4s. CONTACT US All Rights Reserved Wilson Combat. David M. Fortier, Firearms News Read More, "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." All Firearms News subscribers now have digital access to their magazine content. My Components; . Purchased a 6mm Arc upper from Sanders Armory. Hornady 6mm ARC brass looks to be of good quality, is fairly consistent and should give you a number of reloads as long as dont lose them, or are pushing for maximum velocity. (4) not available. The heavy, hand-lapped barrel is a MPA 416R stainless steel number measuring 26 inches with a 1:7 twist, 58-24 muzzle threads and black CERAKOTE finish. my memory could be a little off)with a Lever load and a Varget load. Yes it is designed to run in AR15-platform rifles. The 6mm ARC uses commonly available 6.5 Grendel magazines/bolts. Yes. The 6mm ARC shoots far and fast for its size, and can stay supersonic at or beyond 1,200 yards. Check out the new for 2022 Walther Pro SD with James Tarr and Jens Krogh. 6mm ARC: Best AR-15 Cartridge Because of this, we recommend that you subscribe to our bimonthly newsletter to keep prepping, emergency preparedness, and self reliance on your mind. I wonder if this will make inroads in benchrest, when better brass is vailable? You will likely run into feeding problems with an AR-15, due to the shorter overall length, if you try loading bullets lighter than 90 grains. Sign up to receive new product announcements, special offers, and the annual product catalog. Plus, there are newer additions to Hornadys line like the ELD Match, ELD-X and A-TIP. Here's what I have for now. 20" barrel with rifle length gas. All the hardware you need is currently available at Brownells. Federal small pistol and small pistol magnums at your discretion and at your own risk, but they fit and some have reported success. 6mm ARC - "Optimum 6mm" & Powders & Lapua Brass Accuracy may also suffer. They will expand on small varmints at 6mm Creedmoor velocities, so they should work well on average-sized hogs or smaller deer. Brass is still back ordered. Yeah, I saw that post. 6mm ARC The 6mm Advanced Rifle Cartridge (638mm), or 6mm ARC for short, is a 6 mm (.243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low- recoil, high- accuracy long-range cartridge, designed for use in the AR-15 platform at request of a specialized group within the U.S. DoD for its multipurpose combat rifle program.