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Rifles, Reloading, Optics, Equipment
Reloading
100yd vs 500yd groups
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<blockquote data-quote="coop2564" data-source="post: 1440485" data-attributes="member: 87214"><p>How many of you have had a nice sub MOA 100yds group with a load, but at say 500yds it would not hold the sub MOA grouping under ideal conditions? What did you attribute the inaccuracy too? </p><p></p><p>And have you had that same bullet hold MOA at 500yds with another powder, primer, etc?</p><p></p><p>Reason I ask have friend that said he was using xbrand powder got .5moa 5 shot 100yd groups with ES of only 17 avg. yet his 500yds groups in light wind good conditions were 7 inches. Yet he went back to old load (same day/conditions) with another powder that also shot .5 moa at 100 and it held a 4.5" 500yd group yet had almost same ES of 16 avg. (new load 110fps faster) and using same brass, primer, coal. Old load was tuned only for best 100yd group and he started with that same coal with new load got same .5moa group at 100yd so he thought he would be good to go, but he did not try to do any further tuning with new load. Since his ES was virtually same and 100yd groups were same, bullet same he thought down range accuracy should hold too. Thoughts?</p></blockquote><p></p>
[QUOTE="coop2564, post: 1440485, member: 87214"] How many of you have had a nice sub MOA 100yds group with a load, but at say 500yds it would not hold the sub MOA grouping under ideal conditions? What did you attribute the inaccuracy too? And have you had that same bullet hold MOA at 500yds with another powder, primer, etc? Reason I ask have friend that said he was using xbrand powder got .5moa 5 shot 100yd groups with ES of only 17 avg. yet his 500yds groups in light wind good conditions were 7 inches. Yet he went back to old load (same day/conditions) with another powder that also shot .5 moa at 100 and it held a 4.5" 500yd group yet had almost same ES of 16 avg. (new load 110fps faster) and using same brass, primer, coal. Old load was tuned only for best 100yd group and he started with that same coal with new load got same .5moa group at 100yd so he thought he would be good to go, but he did not try to do any further tuning with new load. Since his ES was virtually same and 100yd groups were same, bullet same he thought down range accuracy should hold too. Thoughts? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
100yd vs 500yd groups
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