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Hunting
Long Range Hunting & Shooting
Chronograph distance?
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<blockquote data-quote="lancetkenyon" data-source="post: 1733765" data-attributes="member: 68875"><p>For a "shoot through", I ran my old one at 10' in front of the muzzle.</p><p></p><p>Since you didn't list any of your load or rifle info, here are some examples.</p><p></p><p>Lots of variables can cause velocity differences.</p><p></p><p>Placement of chrono</p><p>Chrono itself</p><p>New barrel/broken it barrel</p><p>Tight bore vs. loose bore diameter</p><p>Chamber dimensions/reamer design/throat length</p><p>Twist rate</p><p>Rifling count/shape</p><p>Brass content</p><p>Powder lot</p><p>Primer lot</p><p>Bullet bearing surface length</p><p>Recoil management by shooter</p><p>Ambient air temps/powder temps or temp sensitivity</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 1733765, member: 68875"] For a "shoot through", I ran my old one at 10' in front of the muzzle. Since you didn't list any of your load or rifle info, here are some examples. Lots of variables can cause velocity differences. Placement of chrono Chrono itself New barrel/broken it barrel Tight bore vs. loose bore diameter Chamber dimensions/reamer design/throat length Twist rate Rifling count/shape Brass content Powder lot Primer lot Bullet bearing surface length Recoil management by shooter Ambient air temps/powder temps or temp sensitivity [/QUOTE]
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