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Posted: 5/26/2010 4:11:07 PM EDT
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I recently picked up a Colt H-Bar Sporter and will not zero unless the rear sight is far to the left. If I center the rear sight lining up the upper and lower slash marks where the sight is supposed to be the point of impact is 3" to the right @ 25 yds. Is this a common problem with the older Colts? Any advice is much appreciated.
Thanks, Blake |
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Quoted:
I recently picked up a Colt H-Bar Sporter and will not zero unless the rear sight is far to the left. If I center the rear sight lining up the upper and lower slash marks where the sight is supposed to be the point of impact is 3" to the right @ 25 yds. Is this a common problem with the older Colts? Any advice is much appreciated. Thanks, Blake Chances are the barrel slipped in the upper barrel socket when the barrel was reinstalled as some point. Out the gate, shotgun the upper open and compare the center of the barrel feed ramps against the front take down lug. If barrel slipped, then the center of the lugs should be slightly to the right side of the lug. If slipped is the problem, then it can be corrected without having to remove the barrel or even loosing the barrel nut. Just take the upper receiver alone, and while using a leather mallet (non marring) make impacts to the FSB just above the barrel while holding onto the upper receiver only. This will slip the entire barrel in the upper socket to the needed correct index. If the center of the feed ramps are centered on the front take down lug, then you may have bigger problems.like the barrel not being correctly seated in the upper barrel socket, or even the receiver upper socket or barrel bent. |
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Side to side, and the front sight is going to chase the shot with the rear sight centered to zero out the rifle.
So looking from the butt stock to the muzzle, the barrel needs to be rotated/slipped clockwise and is the same direction that the barrel extension needs to be slipped in the upper socket as well to center out the barrel feed ramps on the front lug. |
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