The Firing Line Forums - View Single Post

FrankenMauser · February 8, 2019, 12:04 PM

Barrel length does not matter, so long as the muzzle velocity is adequate for the twist rate. (Or the twist rate is adequate for the muzzle velocity.)

A 1:7" twist will stabilize a 1.54" .30 caliber bullet at velocities lower than 250 fps. Even a 2" long bullet would be stable at 500 fps.

In this context, barrel length does not matter.

Many modern barrels have twist rates that are unnecessarily aggressive. This is one of those cases.

February 8, 2019, 12:04 PM	#6
FrankenMauser Senior Member Join Date: August 25, 2008 Location: In the valley above the plain Posts: 13,424	Barrel length does not matter, so long as the muzzle velocity is adequate for the twist rate. (Or the twist rate is adequate for the muzzle velocity.) A 1:7" twist will stabilize a 1.54" .30 caliber bullet at velocities lower than 250 fps. Even a 2" long bullet would be stable at 500 fps. In this context, barrel length does not matter. Many modern barrels have twist rates that are unnecessarily aggressive. This is one of those cases. __________________ Don't even try it. It's even worse than the internet would lead you to believe.