Rounds feed from unmodified 5.56mm magazines, although dedicated mags are now offered for this caliber. A new barrel, proper bolt, enlarged ejection port and that’s about it. It's hard to believe that a system specifically designed for the 5.56x45mm can be so readily converted to throw such heavy slugs. 458 SOCOM fits neatly into a relatively stock AR-15. 458 SOCOM with 300-grain JHP, 400-grain Solid, 600-grain JSP, and 300-grain Barnes X. 458 SOCOM is capable of throwing slugs up to 600 grains. 458 SOCOM, as the initial impetus came from a discussion with a member of US Special Operations. When his cartridge design was finally completed Marty dubbed it the. Since it's based on a pistol case, it operates at relatively low pressure, and thus imparts less stress to the rifle. The case rim was also further rebated to 0.473 inch (.308 Win dimensions) both to leave more material on an AR-15 bolt and allow easy retrofit into a bolt-action rifle. Case length was shortened to 40mm to allow a Barnes 300-grain X Spitzer to be seated to a depth which would still function through an AR mag. A case this size will completely fill an AR-15 magazine, allowing it to function as a single-stack design. 50 Action Express cases provided by Starline Brass. The next question was what to use for a cartridge case? After receiving input from Tony Rumore of Tromix, Marty settled on unformed preproduction. 458-inch diameter would also enhance terminal performance of subsonic ammunition. 50 caliber projectile offerings available for the. In hindsight, this was a very wise decision on his part. Doing so would give the user a wide choice of commercially available projectiles, ranging from 250-grain JHPs to 600-grain JSPs. Marty became intrigued with the idea and decided to try to develop such a cartridge. 458 SOCOM differs from a standard 5.56mm AR-15 in the barrel and the face of the bolt is opened up with the extractor and ejector suitably modified. During this informal beer and BBQ discussion, they focused on the possibility of developing a new cartridge capable of providing superior stopping power for the AR-15 weapons system. This occurred after the Task Force Ranger debacle in Mogadishu, Somalia as described in the book "Blackhawk Down". 50 Beowulf, this interesting round came about through an informal discussion with a member of the U.S. Rather than being developed as a sporting cartridge, like the. 458 SOCOM, this rebated rim bottleneck design is the child of Maarten ("Marty") P. 50 Beowulf got the glory, another big-bore cartridge developed expressly for use in the AR-15 was launched around the same time. It quickly caught the attention of many who loved the performance of rifles like Marlin’s M1895. 50 Beowulf neatly shoehorned the performance of a traditional large-caliber lever-gun into a compact lightweight AR carbine. If you wanted to blow great big holes in things, create all kinds of carnage, and stop man or beast dead in their tracks the. 223 Rem appeal to some, but others prefer throwing huge chunks of lead at moderate velocities. Let’s face, small-bore high-velocity cartridges like the. Suddenly hunters and shooters had the option of stepping up from the common intermediates of the day to a hard-hitting big-bore cartridge. Big-bore AR-15s first hit the scene in 2001 with the launch of Alexander Arms’.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |