[dhuffman@awod.com]

I know that 12 ga. is .71 caliber and that .410 is .410. How 'big' is 28 gauge? Bigger'n .17 caliber but smaller than .56?

[Beagle8U]

"I know that 12 ga. is .71 caliber and that .410 is .410. How 'big' is 28 gauge? Bigger'n .17 caliber but smaller than .56?"

Gauge and caliber are not interchangeable terms.

Gauge is determined by the number of round lead balls that would fit down the bore of any shotgun, that would equal one pound.

Caliber is more measured in bore diameter, stated in inches, or MM.

A 410 shotgun is measured in bore, and doesn't fit the rule for all others, hence it is a .410 bore, not a 410 gauge.

In judging the size of a shotgun....The smaller the number, the larger it is, as far as the projectiles it fires goes.