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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity dropping each shot?
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<blockquote data-quote="Pdvdh" data-source="post: 737144" data-attributes="member: 4191"><p>Could be the chronograph is getting too cold. Check your owner's manual and see what temps it's rated for.</p><p></p><p>The first group is within reason. But the continuing decline to 100 fps difference in the second string seems excessive. </p><p></p><p>You didn't tell us if the ammo and gun started warm and then cooled off. Or if everything was cooled down to -20 before the first shot was fired. Same with the chrono. Did it start warm in your back yard or was it completely cooled down to outdoor air temperatures with the first shot fired.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 737144, member: 4191"] Could be the chronograph is getting too cold. Check your owner's manual and see what temps it's rated for. The first group is within reason. But the continuing decline to 100 fps difference in the second string seems excessive. You didn't tell us if the ammo and gun started warm and then cooled off. Or if everything was cooled down to -20 before the first shot was fired. Same with the chrono. Did it start warm in your back yard or was it completely cooled down to outdoor air temperatures with the first shot fired. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity dropping each shot?
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