The Firing Line Forums - View Single Post - 22-250 Handloads, 1:10 Twist

Bart B. · November 6, 2013, 12:23 PM

Jim Watson's pretty much right.

22 caliber 50 through 55 grain bullets have always shot most accurate in .222 and .223 Rem ammo from 1:14 twists in the usually 22 to 24 inch barrel lengths. Shooting those same bullets out a lot faster from a .22-.250 case means the twist has to be slower to spin them just at the right rpm range. I've know a couple folks who got 1:16 twist barrels for their .22-.250's shooting Sierra 52-gr. HP match bullets extremely accurate.

A 1:10 twist in a 22 inch barrel for the .22-.250's best suited for heavy bullets like the 80 grain ones. It'll spin lighter, 50 to 55 grain bullets way too fast and accuracy may suffer due to the more unbalanced bullets jumping off the muzzle axis upon exit due to excessive centrifugal forces.

November 6, 2013, 12:23 PM	#4
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	Jim Watson's pretty much right. 22 caliber 50 through 55 grain bullets have always shot most accurate in .222 and .223 Rem ammo from 1:14 twists in the usually 22 to 24 inch barrel lengths. Shooting those same bullets out a lot faster from a .22-.250 case means the twist has to be slower to spin them just at the right rpm range. I've know a couple folks who got 1:16 twist barrels for their .22-.250's shooting Sierra 52-gr. HP match bullets extremely accurate. A 1:10 twist in a 22 inch barrel for the .22-.250's best suited for heavy bullets like the 80 grain ones. It'll spin lighter, 50 to 55 grain bullets way too fast and accuracy may suffer due to the more unbalanced bullets jumping off the muzzle axis upon exit due to excessive centrifugal forces. Last edited by Bart B.; November 6, 2013 at 05:40 PM.