About the Study Guide

You are looking at a preview of what’s in the timed Today's Muzzleloader Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Muzzleloader Education Certification Card.

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Shotgun gauge sizes

Gauge refers to the number of lead balls in a size equal to the shotgun bore needed to equal one pound. For example, 12 lead balls with the same diameter as a 12-gauge shotgun bore would equal one pound.