This video explores the fragmentation capabilities of M855A1 ammunition when fired at reduced velocities. By reloading M855A1 with 21.5 grains of RL 15 and firing from a 14.5-inch M4 rifle, the test aimed to determine the fragmentation threshold. The results showed significant fragmentation and penetration even at these reduced velocities, suggesting the ammunition's effectiveness extends to lower speeds than might be expected.
This review of the Sig Sauer M400 highlights its design for law enforcement and military, making it a popular choice for civilian shooters and competitors. It details the rifle's chambering in 5.56x45 NATO/.223 Remington, its direct gas impingement operation, and key features like a 16-inch nitride-treated barrel with a 1 in 7 twist. The review also touches upon its dimensions, weight, controls, and the availability of numerous configurations.
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