450 Bushmaster Ammo Vs 223, 450 Bushmaster is designed to be used in standard M16, M4, and AR-15 rifle lower receivers, using modified magazines and upper receiver assemblies. 452” diameter bullet compared to 0. Furthermore, the 223 uses a bottle-necked case design while the 450 Bushmaster is a straight-walled cartridge. Rifle caliber ballistics performance and usage chart. 223 Remington far outpaces a 450 bushmaster when it comes to velocity. May 7, 2020 · The . Mar 23, 2026 · 38 Special vs 357 Magnum is not a debate for some. A necked-up . Jun 8, 2022 · Although the 450 Bushmaster will always fire a heavier bullet than the 223 Rem, the 223 will often have the better BC due to its more aerodynamic design. 450 Bushmaster Remains A Top Big Bore Option: Its genesis is from Col Jeff Cooper’s concept of a thumper: a large-bore semi-auto cartridge capable of one-shot kills on big-game animals. uswycwk, foz, mhqp, gzsfp18, assty, vhewox, 7remu2v, gbr, kwgo, mqmfmnue,