The Russian 91-91 in caliber 9x39 uses a 20 round box
magazine,
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They sent the dog named laika into space on Nov.3 1957 it was a
russian dog
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If by chance you mean a Moisin-Nagant 91/30, it was the standard
rifle of the Russian military from WW I through the end of WWII. It
is a bolt action rifle in caliber 7.62 x 54R.