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Hunting
Long Range Hunting & Shooting
Published Muzzle Velocities..accurate or not?
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<blockquote data-quote="Seven Oaks" data-source="post: 286075" data-attributes="member: 17659"><p>I have a chrony. It got dropped and is in for repair.</p><p> </p><p>Using the chrony previously for other calibres using Factory ammo, the variance I got off of 7MM Mag. stated velocites avg. about -55 fps below.</p><p> </p><p>My .308 avg. about -10 fps below published MV.</p><p> </p><p>My 7-08 avg. was right on the money of published data.</p><p> </p><p>I verified that the published MV for the 7WSM was from a 24" Bbl.</p><p> </p><p>This is a new hunting rifle. Won't be shot past 500 yds. I know there was alot of Marketing hype on the WSM's and was hoping the MV variance wouldn't be any worse than the above cartridges, as I could live with that.</p><p> </p><p>I ran some numbers using 2966 as MV, which is 60 ft. less than published after you deduct 1" for the shorter Bbl. It had me low 2.5" @ 500 yds. That's better than I can shoot. I hope the MV isn't much lower than that though.</p><p> </p><p>Thanks for the help.</p><p> </p><p>Regards,</p><p> </p><p>Dee</p></blockquote><p></p>
[QUOTE="Seven Oaks, post: 286075, member: 17659"] I have a chrony. It got dropped and is in for repair. Using the chrony previously for other calibres using Factory ammo, the variance I got off of 7MM Mag. stated velocites avg. about -55 fps below. My .308 avg. about -10 fps below published MV. My 7-08 avg. was right on the money of published data. I verified that the published MV for the 7WSM was from a 24" Bbl. This is a new hunting rifle. Won't be shot past 500 yds. I know there was alot of Marketing hype on the WSM's and was hoping the MV variance wouldn't be any worse than the above cartridges, as I could live with that. I ran some numbers using 2966 as MV, which is 60 ft. less than published after you deduct 1" for the shorter Bbl. It had me low 2.5" @ 500 yds. That's better than I can shoot. I hope the MV isn't much lower than that though. Thanks for the help. Regards, Dee [/QUOTE]
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Published Muzzle Velocities..accurate or not?
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