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Posted: 6/10/2007 11:11:29 AM EDT
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Hello all, I have a problem. I just built an 18" barreled SPR Whit Oak Armament with a 1/ 7 twist. I attempted to zero the rifle using 55 grn BTHP Federal first because its free and second I just wanted to get a quick zero on paper. So after boresighting with a zero point (Leupold) I took my stick to the range and It shoty approx 7 -9inches high. The problem is I have no more adjustment on my Leupold MR/T 3x9 scope. I have no idea how to correct for this. Heres an overview of my set up: 18" WOA SPR 1/7 twist barrel w/ vltor flash hider Bushmaster upper & lower with Larue 13.2 handrail free float. Larue SPR mount 1.5 for the optics using the Leupold MR/T scope. Everything properly tourqued to spec. So what is the problem, and if it helps the Iron sights shoot high as well like 2 1/2 ft high. But the gun groups tight approx 1inch just high. HELP ME PLEASE. |
I didn't see any pictures in that post titled "Optics please". Are you by chance bridging from the upper receiver to the upper rail on the Handguard? I did this once, and ran out of adjustment on my scope. I then moved everything to the upper only and, viola, everything was right with the world again and my scope was back to just 4 clicks away from mechanical zero. |
I agree, can't you move the mount to the rear 1 notch and readjust the scope for correct eye relief? |
It could if it was torqueing the tube and not letting the scope sit naturally in the rings. But, if you have clearance then that is not the problem. Possibly barrel extension to receiver fit, or barrel nut torque. Just more food for thought. |
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My ring are tourqued at 15 inch pounds and my receiver to barrel nut is at 40 lbs of tourque. I have not tried the flash hider removel yet but that was just cranked a little past hand tightened with loc-tite. Is there any reason why the scope was shipped to me with no room for upward movement/compensation? Most Mark 4s that do not employ a BDC option usually arrive some where close to center as far as MOA clicks are concerned, am I correct? Im baffeld but I do not want to use a shim due to the mount being a throw lever. Could the problem be that there is no MOA built into the mount? I know there are lots of questions but im pretty good around guns and I can't figure it out. Its seems to me the problem is in the scope bottomed out. |
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The problem isn't anything to do with MOA being built into the mount. Are you absolutely sure that the mount is seated correctly to the receiver? Any misalignment there will throw things way out. If you have another scope you know is good try it if the mount is correct. If it won't work then the mount may be the problem. If it works you may have a bad scope. Yeah I know it's a Luepold but bad product can slip thru anyones QC. |
If it came from WOA and isn't second hand I very highly doubt John let a bad barrel face slip by. On the second one I would say slim to none. |
| you say your irons are high as well as the optics right? so you can rule out all of the above bs (scope mounts irons) it almost sounds like the face of the upper or the barrel extension is out of wack. try getting a upper receiver lapping tool and see what happens... just my 2 cents |
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