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2/15/2007 7:18:13 PM EDT
I've been reading up on installing barrels and have questions.  I'm going to install a WOA service barrel on a RRA upper, I understand these barrels have some windage adjustment on the front sight.  Do these barrels come with the front sight centered within their range of adjustment?  Or do I adjust the windage  to center the front sight in the rear sight once the barrel is installed.  I'm assuming I'll set the rear sight to the center and then center the front by adjusting it, sound correct?  This will give me a mechanical zero, right?  At this point I would fire it and then move the front sight to center the shot group windage wise and this would give me a correct no wind zero for the front (assuming I'm shooting on a nice day).  Am I complicating this too much?  
2/16/2007 7:19:58 AM EDT
[#1]
You got it.
2/16/2007 5:48:36 PM EDT
[#2]
There are alignment rods that will get you REALLY close before you start shooting for groups.



The other trick mentioned is to set the rifle upside down so both ears of the front sight and both ears of the rear sight are on a perfectly flat surface.
Then, with the rear sight ears both on the flat surface and the front sight loose, rotate the front sight so that all four ears tough the flat surface.
If the FSB is either left or right very much, it will be up on only one ear...
2/16/2007 8:44:08 PM EDT
[#3]
Cool, I want one of those bar things, the way I do it is with a cheap wal-mart laser bore sight, and I guess with the front post height and do the rest of the tweaking at the range.
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