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Understanding Caliber vs Cartridge vs Chambering

Talyn

Emissary
Founding Member

Caliber, cartridge and chambering aren’t interchangeable, but there’s a lot of overlap in the meanings and how we use these terms. What do they each really mean?



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30-cals (left to right): The 300 Win Mag, 30-06 Sprg, 308 Win and 30-30 Win are very different cartridges, but they are all considered
30 caliber, as they all use a bullet with a diameter of .308 inches, shown on the far right.
 
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