8/9/2023 0 Comments .458 socom subsonic twist rateUnless you have money to spend reloading is a must for these cartridges. All 3 of these cartridges can generate about the same amount of energy as the 308 Win. ![]() The subsonic loads for the big bore calibers have more than twice the energy as the subsonic 300 blackout.The energy of all three big bore cartridges is significantly more than the 5.56 and 300 Blackout.The 50 Beowulf has slightly more energy with a 300gr bullet than the 458 SOCOM.The 450 Bushmaster can shoot lighter bullets at higher velocities which produces the greatest amount of energy of the three calibers.The 458 SOCOM and 50 Beowulf are superior subsonic cartridges as far as energy goes.Big Bore Caliber Comparison Takeaways from the Data ![]() The chart below includes a few different loads for each cartridge as well as a few calibers for reference to. These calibers may seem very similar at first but there are some important differences that I will review later in this article. With velocities between 1,050 FPS and 2,500 FPS. 452 diameter bullets (same diameter as 45 ACP) typically ranging from 250 gr. 500 inches, 1.700 inches long with a C.O.A.L. SST bullet and change the name 450 Bushmaster. 45 Professional ammunition and wanted to shorten the case to house their 250gr. 45 Professional cartridge was developed to provide the desired results in an AR-15 platform. 450 Bushmaster was created due to the lack of “punch” 223 Remington/5.56 NATO for large game hunting. 450 Bushmaster LeMag Firearms developed the 450 Bushmaster then licensed it to Bushmaster Firearms in 2007. LeMag Firearms developed the 450 Bushmaster then licensed it to Bushmaster Firearms in 2007. 458 Socom Cartridge 450 Bushmaster Background With velocities between 1,050 FPS and 2,300 FPS. 458 diameter bullets typically ranging from 250 gr. The rim was reduced to the same rim as the 7.62×51 and 30-06. 50 AE, it was lengthened and necked down to. 485 inches, the length is 1.575 inches and the C.O.A.L. 541inches wide with a shoulder that necks it down to. In response to this quest, Tromix developed the 458 Socom in 2000, by 2001 Tromix built the first rifle chambered in 458 SOCOM. Military had to find a cartridge that would deliver more power than the 5.56 NATO while being compatible with the AR-15 platform. The 458 SOCOM was developed to meet the needs of the U.S. 50 Beowulf Cartridge 458 SOCOM Background at velocities between 1,050 and 2,500 FPS. 50 diameter bullets that typically range from 200 gr. 535 inches, the cartridge overall length (C.O.A.L.) is 2.125 inches It is similar to the 500 S&W Magnum but the Beowulf case is a little longer and tapered for feeding. The case is 1.65 inches long with a width of. The 50 Beowulf was designed to generate significant stopping power at short to medium ranges. 50 Beowulf BackgroundĪlexander Arms developed this cartridge in 2001 for use in the AR-15. The main limitation of these calibers is the ability to shoot past 250 yards. Big bore calibers can be used in a wide variety of applications including self-defense, plinking, and big game hunting. 458 Socom and 450 Bushmaster.Īll big bore cartridges were designed to produce more punch than the 5.56 NATO while being compatible in the AR-15 platform. In this article I will go in depth on three of the most popular big bore AR-15 calibers, the. That’s the equivalent of a 6.5 Creedmoor and a. ![]() ![]() 458 Barrelīig bore cartridges are quite versatile and support loads that shoot a 500+ gr bullet at 1050 FPS while still shooting a 230 Gr bullet 2450 FPS producing 3,000 foot pounds of energy. The development of big-bore calibers (think 40 caliber or larger with a really big bullet) has been especially prevalent in recent years.223 vs. Over the last two decades, a variety of new calibers have been developed and gained popularity for use in the AR-15 platform. The AR-15 is one of the most popular and versatile rifle platforms in the world.
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