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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
berger help?
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<blockquote data-quote="Engineering101" data-source="post: 937760" data-attributes="member: 63138"><p>haffyti839</p><p> </p><p>Make that 5 different ballistic programs as mine says 5.5" drop at 300 yards equals 3,550 fps also.</p><p> </p><p>But QL says with 101.5 gr of Retumbo in a 29" tube about the best you could hope for would be 3,330 fps. That has the burn rate up to 0.3700 and the weighting factor set to 0.3 and pressure at 67,633 psi. QL is just an estimator but it would be pretty odd to be this far off. Based on your comments I take it that you have not run this load over a chrono. If you have a buddy that has one it would be interesting to see what you get.</p></blockquote><p></p>
[QUOTE="Engineering101, post: 937760, member: 63138"] haffyti839 Make that 5 different ballistic programs as mine says 5.5" drop at 300 yards equals 3,550 fps also. But QL says with 101.5 gr of Retumbo in a 29" tube about the best you could hope for would be 3,330 fps. That has the burn rate up to 0.3700 and the weighting factor set to 0.3 and pressure at 67,633 psi. QL is just an estimator but it would be pretty odd to be this far off. Based on your comments I take it that you have not run this load over a chrono. If you have a buddy that has one it would be interesting to see what you get. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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berger help?
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