CMMG .22LR Conversion - Windage Accuracy Issues

[james_bond_007]

Whats your barrel twist? 22lr normally like a 1:16 twist. If your 5.56 barrel is a 1:7 RH twist? That is a lot faster right-hand twist and could account for your results. My conversion shot considerably better from a 1:9 than a 1:7, but still is not "shooting groups" like a dedicated 22 setup would. They also shot better with high velocity 22lr ammo.

1:9 RH

Ammo is the high velocity bulk (550 and 330 packs et al.) like:

Remington Thunderbolt
Caliber: 22 Long Rifle
Bullet Weight: 40 Grains

Bullet Style: Lead Round Nose

Muzzle Energy: 140 ft. lbs.

Muzzle Velocity: 1255 fps



Federal Champion

Caliber 22 Long Rifle

Bullet Wt/grains 36

Muzzle Velocity 1260

Rounds/Box 525