About the Study Guide

You are looking at a preview of what’s in the timed National Handgun Safety Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Course Completion Certificate.

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Hhandgun bores

Most handgun barrels have spiraling grooves cut or pressed into the bore. The ridges of metal between the grooves are called lands. Together, the grooves and lands are called rifling.

When a handgun is fired, the rifling in the barrel puts a spiral spin on the bullet. This spin keeps the bullet point-first in flight, increasing accuracy and distance.