Gas check
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A gas check is a gasket type component of firearms ammunition. Gas checks are used when non-jacketed bullets are used in high pressure cartridges. The use of a gas check inhibits the buildup of lead i
An AK bolt carrier/gas piston. Note the gas rings on the piston.
Cast bullet
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A cast bullet is made by allowing molten metal to solidify in a mold. Most cast bullets are made of lead alloyed with tin and antimony, but zinc alloys have been used when lead is scarce. Most commerc
Minié balls of the mid-19th century could be either cast or swaged.
A pair of French, 19th century Duelling pistols. The set of accessories includes a small casting ladle and a bullet mold, so the owner may make their own bullets, Philadelphia Museum of Art (2009)
A selection of historic, British military ammunition. The center two are .577/450 Martini–Henry paper-patched rounds