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Posted: 6/19/2005 8:31:09 PM EDT
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If you damage a 4x ACOG by over adjusting it how does it act? I have been trying to work up loads for my 6.8 and they just keep getting worse and worse. 3MOA TODAY! Also the groups move around-- sometimes right sometimes left. I thought maybe it was paralax from inconsistant cheek welds but ......? I went and dug out some old targets from my first time out with the 6.8 and they were 1.25 MOA. But they were too hot so I backed off and then started trying other powders. When I first put the ACOG on the 6.8 I had to move the windage like 36 clicks to zero it. I remember thinking at the time I did not want to break it. Does an ever growing group size and wondering zero sound like a scope problem? Is 12 MOA of windage sound like enough to damage the scope? Help me  |
| A guy once backed the adjustment screw out of his ACOG. I asked Trijicon if I could just thread it back in or if they needed it. Trijicon asked to have it back. Other than that, I know that if you are threading it in too far, it will get very tight at the end of its adjustment. Its at that point you need to be careful. Once it is over adjusted, I think the adjustment starts hitting something in the scope, and thats not good. I think its like this with most scopes. Thats all I know about over adjusting though. |
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An easy way to tell if the ACOG or its mount is the problem is to swap on a known-good scope on a solid mount and see what you can do. If the problem persists, it's not the ACOG. Another thing to do is to move the mount + ACOG to another AR15 which you know shoots, and see if it groups the same as it did before the ACOG. -z |
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It is a TA31 on a snug LaRue. I took out my old TA01NSN today and the groups went from averaging 3 MOA to just under 1.5 MOA. I guess I'll see what Trijicon has to say. This has come on kinda slow -- so slow I did not realize what was happening. I guess I always thought that if a scope failed it would be immediately apparent. I also think that because it happened durring load development I was more susspect of my ammo than any thing else. That, and I had my doubts about my M1S barrel. Thanks for the help guys. Kris |
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