By A Mystery Man Writer
Answer (1 of 13): For wildcats (not commercial chamberings), the .17 Squirrel comes immediately to mind. There may be some really obscure sub-caliber centerfires out there that are even smaller, but the .17 Squirrel is pretty darned small. The parent brass is .22 Hornet. The Hornet case is shorte
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World's Smallest Rifle Cartridge (and friends) — Ron Spomer Outdoors
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