A World War II-era rifle designed to solve World War I-era problems, the Boys Anti-Tank rifle was something of an anachronism against such German behemoths as the Panzer and Tiger II. Firing a .55-cal. bullet, the Boys rifle was designed to penetrate the somewhat thinner-skinned tanks of the Great War, but proved its use in World War II nonetheless in a variety of other ways, even once reportedly taking down an aircraft. For more on this massive firearm, check out this "I Have this Old Gun" segment from a recent episode of American Rifleman TV.
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