AR Pistol 口径问题

bridlewood

atugong 发表于 2019-3-4 16:12
556初速只有超音速的。弹丸即便是翻滚了，穿墙也会比亚音速空头300 BLK厉害。更何况音爆伤听力
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这个给AR pistol用不知道能不能cycle boltAtomic Ammunition 223 Remington Subsonic 77 Grain Hollow Point https://www.midwayusa.com/product/1016549622/atomic-ammunition-223-remington-subsonic-77-grain-hollow-point-boat-tail-box-of-50