A quick primer on calculating the twist rate of a barrel (VIDEO)

09/14/18 2:00 PM | by

A quick primer on calculating the twist rate of a barrel (VIDEO)

When dealing with a mystery barrel, an easy way to measure the twist rate of the rifling is a must.

Using a cleaning rod, a magic marker, and a tape measure, Chad with IV8888 goes through the basic steps to figure out the bore’s twist, which is needed to calculate ballistics and figure out a rifle’s sweet spot with certain loads.

Good stuff. Pretty soon you’ll be measuring everything in the safe, amazing your friends and baffling your enemies. Or something like that.

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