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Long Range Hunting & Shooting
Group size vs ES
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<blockquote data-quote="YZ-80" data-source="post: 1655580" data-attributes="member: 109229"><p>I don't know if 65 FPS difference would have necessarily show much vertical dispersion at 300 yards. Maybe there was some other factor that inadvertently compensated for a lower/higher point of impact with your 3 round group? (I.e., stud recoiling against a sandbag, etc.). I usually Try to keep ES under 20 and don't really freak out about it until it exceeds 40 FPS. But, I'm only shooting out to 400 yards. If I can hold to less than 1/2 MOA vertical dispersion at that distance, I'm happy. You may not be. Anyway, you might want to bite the bullet and go with 5 shot groups for purposes of testing. I don't blame you for not wanting to burn the powder and take the kicks but it may be more informative to do so. Sometimes I just compromise and shoot 4-shot groups!</p></blockquote><p></p>
[QUOTE="YZ-80, post: 1655580, member: 109229"] I don’t know if 65 FPS difference would have necessarily show much vertical dispersion at 300 yards. Maybe there was some other factor that inadvertently compensated for a lower/higher point of impact with your 3 round group? (I.e., stud recoiling against a sandbag, etc.). I usually Try to keep ES under 20 and don’t really freak out about it until it exceeds 40 FPS. But, I’m only shooting out to 400 yards. If I can hold to less than 1/2 MOA vertical dispersion at that distance, I’m happy. You may not be. Anyway, you might want to bite the bullet and go with 5 shot groups for purposes of testing. I don’t blame you for not wanting to burn the powder and take the kicks but it may be more informative to do so. Sometimes I just compromise and shoot 4-shot groups! [/QUOTE]
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