The two rifle models that were used by U.S. Snipers were the Winchester Model 70, and an M21 Rifle. The better-known U.S. Marine snipers used bolt action rifles. Carlos Hathcock who had 93 ...

If you think a 155mm howitzer shell is big, the M21 rifle is accurate, the MLRS can fire over a long distance, or that the PATRIOT air defense system is sophisticated, you are correct on all accounts.

During Vietnam, the US benefited from several venerable weapons like the M60 machine gun, the accurate M21 sniper rifle, and workhorse CAR-15, the last of which has also seen extensive use in ...

The M21, based on the M14 battle rifle, dated to the Vietnam War. Although semiautomatic, the M21 was less accurate and required more maintenance than most sniper rifles.

The M21, based on the M14 battle rifle, dated to the Vietnam War. Although semiautomatic, the M21 was less accurate and required more maintenance than most sniper rifles.