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Posted: 5/15/2006 5:41:04 PM EDT
| Hi guys got a queston. I have a CMMG mid length med con barrel on a A1 upper. The barrel is 1/ 7 twist. I sighted it in but it still shoots about a inch to the right of bullseye. I sighted it in a 50 yards. the ammo I was using was south african 55 grain stuff. The rear sight is all the way to the left and wont go over any farther. Should I try different ammo different bullet weight? Is there a certain sight in procedure for the A1 upper? I know a inch isnt much but I would like to be hitting a little closer to the bullseye. |
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The barrel needs to be re-indexed in the upper receiver. Since you have maxed out the rear sight base over to one side and still not zeroed the rig (read will not have the option of just breaking out the leather mallet), the upper needs to be sent back to CMMG to pull the barrel and reinstall it correctly. |
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