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<blockquote data-quote="Gamesniper19" data-source="post: 2142465" data-attributes="member: 95013"><p>So some PROOF barrels are subject to POI shift. What puzzles me is that although the POI shift MOA is similar, the position of the POI shift is different. As a guide, lateral POI shift is usually the rifle and vertical POI dispersion is usually the shooter. </p><p>I would shoot a few groups and let the barrel completely go cold between the groups. That may mean 5 mins between shots. If you do this and you shoot a consistent group, it is likely a heat induced POI shift from the barrel. If that is the case, save all your photos and experiment data and call PROOF and see if they will send you a new barrel</p></blockquote><p></p>
[QUOTE="Gamesniper19, post: 2142465, member: 95013"] So some PROOF barrels are subject to POI shift. What puzzles me is that although the POI shift MOA is similar, the position of the POI shift is different. As a guide, lateral POI shift is usually the rifle and vertical POI dispersion is usually the shooter. I would shoot a few groups and let the barrel completely go cold between the groups. That may mean 5 mins between shots. If you do this and you shoot a consistent group, it is likely a heat induced POI shift from the barrel. If that is the case, save all your photos and experiment data and call PROOF and see if they will send you a new barrel [/QUOTE]
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