Stick with RRA parts. At the same time, the military appreciated those same characteristics in the 7.62x51mm and it gained widespread approval for its performance in designated marksman/sniper rifles as well as machineguns. We will now publish what we know as we learn it in a dynamic fashion. For that reason, the .223 Remington isn’t a legal deer hunting cartridge in many states. Both will work, but the .223 Remington is the better choice here because it has a flatter trajectory, ammunition is cheaper, and there are many types of .223 ammo specifically designed for predator and varmint hunting. The .308 Winchester is also available in semi-automatic AR-platforms like the Remington R-25 as well as rifles like the AR-10, the FN FAL, and the Springfield M1A (the civilian version of the M-14). That being said, not only does the .223 Rem have a flatter trajectory at short range, but it recoils a whole lot less than the .308 Winchester. Of course, both cartridges are available in a number of bolt action hunting rifles like the Remington Model 700, Ruger American, M77 Hawkeye, and Scout, Savage 11/111, and the Weatherby Mark Vanguard. BUY AN EXCELLENT 223 REMINGTON HUNTING RIFLE HERE, BUY A GREAT 308 WINCHESTER HUNTING RIFLE HERE. Links to Other 308 AR | AR-10 | AR 308 Content, Manufacturers | 308 AR Compatibility | Charging Handles | Carbon Fiber Barrels| Barrels | AR Rifle Build Guides | AR Receiver Selection Guide | Trigger Selection Guide | Bolt Carriers | Armalite AR-10 Rifle Parts | AR-10 Rifle Barrel Selection Guide | 308 Scope Selection Guide | Tools |, 308 AR Ballistic data for the 5.56x45mm and 7.62x51mm cartridges were obtained from Inetres. Due in part to their military roots, there are a number of semi-automatic rifles available chambered in both cartridges. The external threads are a function of specific handguard mounting and have nothing to do with barrel installation. RRA LAR 308 will also work with a DPMS barrel. The .308 is a little on the light side for moose and grizzly/brown bear, but it will work in a pinch with proper shot placement. The AR-15 is bar far the most enjoyable modern rifle to shoot especially for those new to the hobby/sport. Are you looking for a cartridge to hunt predators and small game animals with? In common usage, .308 refers to the .308 Winchester cartridge. Not just length, but weight also. | The .308 Winchester is also available in semi-automatic AR-platforms like the Remington R-25 as well as rifles like the AR-10, the FN FAL, and the Springfield M1A (the civilian version of the M-14). On the other hand, since it shoots heavier, larger diameter, and generally much better constructed bullets, the .308 Winchester has a clear advantage when hunting larger species like deer, caribou, elk, and red stag. All in all, the M855A1 has been well received and has a reputation for being more accurate, penetrating barriers more effectively, and having better terminal performance than the old M193 and M855 ball ammunition. For the benefit of visitors the decision was made to publish upon creation and keep updating. Specify and order carefully. Generally speaking, .223 Remington ammunition is less expensive than .308 Winchester ammunition. We do not believe in mixing different bolt carrier group parts to make them work with a platform they were not intended to. Use extreme caution when attempting to interchange the .223 Remington or .308 Winchester with their NATO cousins though. I am currently building my AR-10 now (yes 7.62 NATO) with Aero Precision's upper & lower combo. Safety Note: If your reading this page with the intent on building your own AR-10/.308 AR or upgrading a factory rifle it’s best if you have familiarity and prior experience with the AR-15 platform. This load penetrated much better than the M193 load, but complaints about the terminal performance of the bullet from Soldiers eventually spurred the development of another ball load (the M855A1) during the Global War on Terror. Armalite offers two style lower receivers, AR-10A and AR-10B. Today, we’re going to focus on the popular AR-15 platform, and similar rifles, to nail down the kind of optics you can expect to see paired with an AR. However, modifications to the rifle and the propellant used in the cartridge solved many of those issues and both remain in common use by military forces all over the world. The number one issue we hear about is rifles that don’t cycle properly and the cause is often the inferior bolt carrier. 223/5.56 vs 300 Blackout vs 308 Winchester: Which Is Best? This is mostly 1980s production, it sounds like, so there's a decent chance it'll be Boxer-primed, too. .308 Winchester vs. 7.62×51mm NATO.