Krag Collectors Association Forum Archive

Krag Collectors Association Forum Archive
General >> Ammunition, reloading, shooting, etc >> 30-40 30" Barrel Accuracy? http://www.kragcollectorsassociation.org/cgi-bin/yabb2/YaBB.pl?num=1584720421 Message started by MiHeadShot on Mar 20^th, 2020 at 4:07pm

Title: Re: 30-40 30" Barrel Accuracy?
Post by butlersrangers on Mar 21^st, 2020 at 2:32am

Everyone knows that!

Krag rifling twist-rate is one turn in 10 inches. This rate was carried over to later U.S. .30 cal. military arms.

A projectile makes almost three complete rotations on its trip through a 30 inch Krag barrel. (You would have to subtract the length of the chamber & throat).