5.56 Twist Rate Chart at Chart

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5.56 Twist Rate Chart. A proposed 69 grain match bullet is pulled from the case, and measured for length with a caliper. Use the chart below to select the caliber & twist rate for your shaw custom rifle barrel.

Rifle Barrel Twist Vs. Bullet Weights - Rifleshooter
Rifle Barrel Twist Vs. Bullet Weights - Rifleshooter from www.rifleshootermag.com

The twist required would be 1 : This tool allows you to figure out which bullets will stabilize out of your rifle given your rifle’s twist rate. The early m16a1 utilized a rifle twist rate of 1:12 to stabilize the 55 grain m193.

Rifle Barrel Twist Vs. Bullet Weights - Rifleshooter

One of the great mysteries about the 5.56 nato ar is “barrel twist.” this refers to the twist rate of the rifling in the barrel that applies spin to the bullet — spin stabilizes the bullet — and it’s something that many shooters don’t know that much about. The.900 value is followed to the right until it intersects the minimum twist requirement line. This is the best article i have found for 5.56 ballistics with data and charts. It is safe to shoot bullets in weights outside the ranges specified for the twist rate.