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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
250 gr Berger Elite Hunter ballistic coefficients
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<blockquote data-quote="El Matavenados" data-source="post: 1745689" data-attributes="member: 89192"><p>Hey all,</p><p>I did a fair amount of searching, and couldn't find a discussion of this. Sorry if I missed it!</p><p></p><p>Berger lists the g7 BC of the .338 250gr Elite Hunter as .351. I am sending it out of my 338 Sherman Short Mag at 2750 (measured on a LabRadar), 11" twist. I am using Strelok Pro for dope calculations, and that's where my problems started. I sighted in at 100, but when I took it out to 300 (farthest length available at my range), the POI was lower than I expected. Using the BCs published by Berger, I was hitting lower than I should have been. When I adjusted the BC to match performance, Strelok calculated it at .322. Today, I extended it out to 560 and 688 yards. The dope yielded by using a .322 BC was spot on at both distances.</p><p></p><p>Is that to be expected (because of my lower velocities)? Or are there other factors that I should consider?</p></blockquote><p></p>
[QUOTE="El Matavenados, post: 1745689, member: 89192"] Hey all, I did a fair amount of searching, and couldn't find a discussion of this. Sorry if I missed it! Berger lists the g7 BC of the .338 250gr Elite Hunter as .351. I am sending it out of my 338 Sherman Short Mag at 2750 (measured on a LabRadar), 11" twist. I am using Strelok Pro for dope calculations, and that's where my problems started. I sighted in at 100, but when I took it out to 300 (farthest length available at my range), the POI was lower than I expected. Using the BCs published by Berger, I was hitting lower than I should have been. When I adjusted the BC to match performance, Strelok calculated it at .322. Today, I extended it out to 560 and 688 yards. The dope yielded by using a .322 BC was spot on at both distances. Is that to be expected (because of my lower velocities)? Or are there other factors that I should consider? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
250 gr Berger Elite Hunter ballistic coefficients
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