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POI shift - what happened here
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<blockquote data-quote="chawk" data-source="post: 1268227" data-attributes="member: 7185"><p>I was out shooting today with a rifle that has always been extremely consistent. The first round of the day and the following 4 rounds were results as anticipated. The rifle was shooting as it always had, with good accuracy and POI was what I have come to expect from this rifle/load combination. One shot later the POI is 0.5 mil high. Thinking to myself I'm not sure what I did there, but I chamber another round and send it. High again. 5 more rounds all high. I'm really scratching my head at this point so I switch targets and put a group on paper at 300 yards. The group is 1/2 MOA but 0.5 mil high. </p><p></p><p>The rifle is a 300WM with 220 rounds down the tube. manners stock, bighorn action, Krieger barrel, seekins rings, nightforce scope. </p><p></p><p>The rounds were all loaded in the same batch. No components were changed and all were from the same lot. Norma brass, fed 215 primer, h1000, Berger hybrid 215. </p><p></p><p>I ran out of daylight and couldn't really dig into it any further. I checked the rifle when I got home and everything seems good. I'm planning to shoot it at 100yards to re-zero and then shoot it at 800 yards which is the farthest I have access to. I'm curious if it will need as much elevation as it always had to get to 800. </p><p></p><p>Any thoughts or suggestions about what could be going on or what I might want to check would be appreciated.</p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="chawk, post: 1268227, member: 7185"] I was out shooting today with a rifle that has always been extremely consistent. The first round of the day and the following 4 rounds were results as anticipated. The rifle was shooting as it always had, with good accuracy and POI was what I have come to expect from this rifle/load combination. One shot later the POI is 0.5 mil high. Thinking to myself I'm not sure what I did there, but I chamber another round and send it. High again. 5 more rounds all high. I'm really scratching my head at this point so I switch targets and put a group on paper at 300 yards. The group is 1/2 MOA but 0.5 mil high. The rifle is a 300WM with 220 rounds down the tube. manners stock, bighorn action, Krieger barrel, seekins rings, nightforce scope. The rounds were all loaded in the same batch. No components were changed and all were from the same lot. Norma brass, fed 215 primer, h1000, Berger hybrid 215. I ran out of daylight and couldn't really dig into it any further. I checked the rifle when I got home and everything seems good. I'm planning to shoot it at 100yards to re-zero and then shoot it at 800 yards which is the farthest I have access to. I'm curious if it will need as much elevation as it always had to get to 800. Any thoughts or suggestions about what could be going on or what I might want to check would be appreciated. Thanks [/QUOTE]
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POI shift - what happened here
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