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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Is lapping the upper face worth the trouble?
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<blockquote data-quote="rpol98" data-source="post: 3059574" data-attributes="member: 122310"><p>it might not affect accuracy, which will be in your barrel, but it will certainly improve alignment of the receiver bore axis with the barrel bore axis. most noticeable if you are using iron sights.</p><p></p><p>if the front face isn't perfectly perpendicular to within thousandths or even ten-thousandths, once that barrel nut clamps that barrel to the upper, it should still be solidly mounted, but perhaps slightly askew, cocked to one side or the other, perhaps in the up-and-down plane. Being solidly mounted ensures the accuracy, despite being askew, you just have to make up for it with the sight or scope elevation, windage adjustments.</p><p></p><p>as long as the barrel is solidly mounted in the upper, your platform accuracy is derived from your barrel, and of course, you ability as a shooter.</p></blockquote><p></p>
[QUOTE="rpol98, post: 3059574, member: 122310"] it might not affect accuracy, which will be in your barrel, but it will certainly improve alignment of the receiver bore axis with the barrel bore axis. most noticeable if you are using iron sights. if the front face isn't perfectly perpendicular to within thousandths or even ten-thousandths, once that barrel nut clamps that barrel to the upper, it should still be solidly mounted, but perhaps slightly askew, cocked to one side or the other, perhaps in the up-and-down plane. Being solidly mounted ensures the accuracy, despite being askew, you just have to make up for it with the sight or scope elevation, windage adjustments. as long as the barrel is solidly mounted in the upper, your platform accuracy is derived from your barrel, and of course, you ability as a shooter. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Is lapping the upper face worth the trouble?
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