Shotgun Gauges Explained: 10, 12, 16, 20, 28, and .410
Posted by Joel Sheran on May 9th 2026
Shotgun gauges are one of those naming systems where the number works backwards. A 12-gauge has a bigger bore than a 20-gauge, a 10-gauge is bigger still, and the .410 isn't actually a gauge at all. I
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