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Posted: 5/15/2007 7:05:06 PM EDT
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Hello, I just got to try out my TA31F ACOG that I purchased off the EE, and I've got a couple of questions regarding sighting it in. I have not had a chance to really try to sight the scope in yet, but I've managed to determine that it is definitely shooting quite low in comparison with the point of aim. At roughly 25m, the 600m stadia line on the BDC was close to the point of impact. Is this a normal amount of adjustment that could be resonably be expected when first shooting with the scope? This is the first magnified optic I've used, so I don't know if that translates into a relatively small adjustment, or it's the huge adjustment it seems like to me. I bought the ACOG used, so I don't know how much use exactly it has gotten, and how, on what, where it was mounted. Am I getting paranoid over a small adjustment? Or is something not working the way it's supposed to here? Would the zero be that appreciably different shifting from say a 20" barrel to a 14.5", and/or where on the receiver the scope is mounted? Should I just sight it in, and not worry about it? Or is there something I need to check/double check to make sure everything is functioning properly? I've just never had sights that were this far off the first time I mounted them, they're usually fairly close, and seem to only need slight adjustments. I've also read about the dangers of overadjusting the ACOG, how do I avoid this, and ensure that it has not already happened? Thanks, ~Augee |
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Just don't force the adjustment turrets and use a tool that fits properly. Small coins, like a dime will sometimes work, but the knurled edges of the coin will often bite into the ring the knob recesses into. A smallish flat blade screwdriver works well though. Since the sight is used, hard to say where it was left, adjustment-wise. You may want to re-center the elevation turret and see where you are first. To do that, adjust the elevation turret all the way to one end (up or down). The go all the way the other direction, carefully counting the clicks as you go. Finally, turn back half the number of clicks you recorded and you will be centered vertically in the scope. The adjustments will be easy until you get to the ends. If you get resistance, stop and go back the other way. Don't force the clicks and you will be fine. You can do the same with windage, but if you are already on paper, the windage sounds like it is fairly close? |
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