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Hunting
Long Range Hunting & Shooting
Why test velocity on target guns?
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<blockquote data-quote="del2les" data-source="post: 2834101" data-attributes="member: 9299"><p>Yes. Just run the drift and drop calcs for a 1,000yd BR or F-class load that has high ES and SD. Say 50-75 fps, and then you'll see a good group or score turn into an also ran. Even the 600yd prone scores in Nat'l Match or F-class can go from X's or 10's to 9's or worse.</p><p></p><p>I.e. My 223 80gr AMAX load at 2,900fps with 300yd zero has a 242" drop at 1,000yd, but if the load is 2,850fps, that same bullet now drops 252" at 1,000. A 10" difference and a disaster to the group and score.</p></blockquote><p></p>
[QUOTE="del2les, post: 2834101, member: 9299"] Yes. Just run the drift and drop calcs for a 1,000yd BR or F-class load that has high ES and SD. Say 50-75 fps, and then you'll see a good group or score turn into an also ran. Even the 600yd prone scores in Nat'l Match or F-class can go from X's or 10's to 9's or worse. I.e. My 223 80gr AMAX load at 2,900fps with 300yd zero has a 242" drop at 1,000yd, but if the load is 2,850fps, that same bullet now drops 252" at 1,000. A 10" difference and a disaster to the group and score. [/QUOTE]
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Why test velocity on target guns?
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