As an expert in firearms, I can tell you that the Mosin Nagant, a bolt-action, internal magazine-fed, military rifle, is known for its historical significance and widespread use. The most common
caliber for the Mosin Nagant is the
7.62×54mmR. This is a rimmed rifle cartridge that was originally developed by the Russians in the late 19th century and has been used in various Mosin Nagant models, including the M91/30, M91/28, M38, and M44.
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