Boresighting trouble with ACOG & LaRue mount

[Don Robison]

Here's what I have, 1 TA01 ACOG mounted in a LaRue mount. I mounted it today and can't get it to bore sighted. At 25 meters the ACOG is 25"-30" left of target. I pulled it off the mount and remounted it just to make sure I didn't some how get it in the mount off center. I met with the same outcome.
Any ideas?? It's got me stumped.


Prior to the LaRue mount it was in a GG&G mount with no issues so I don't believe it's the scope.



Edit: That's 25"-30" with full/nearly full right correction dialed in the ACOG.

[Don Robison]

Anyone?

[Don Robison]

This has been on the back burner, but I'm going to try to get it squared away this weekend. Any suggestions??

[Left Sig]

Try rotating the LaRue mount 180 degrees so the QD levers are on the other side of the upper. Remount the Acog facing forwards and see if it helps your zero. If not, contact LaRue for help.

[Don Robison]

Thanks Left, that was the first thing I tried. I double checked the mechanical center on the scope tonight and remounted it in the mount. I'm going to check the boresight in the morning and if that fails I'll get a cal out to LaRue.