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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Berger 6.5mm 156 gr. bullets. . .where are they???
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<blockquote data-quote="codyadams" data-source="post: 1656127" data-attributes="member: 87243"><p>It would depend how you fudged the numbers, there are many unknowns, the bullets bc, the velocity you would get with it, and so on. When I ran estimated numbers the 156 overtook the 140 elite around 700yds in velocity, had less wind drift from the muzzle on out and more energy from the muzzle out. The only place it was outperformed by the 140 is in drop, and velocity out to 700 yds. We're only talkin a difference at 1000 yds of 4-5 inches of drift, 50 fps, a little less than 200 ft. lbs., and 1 MOA of drop.</p><p></p><p>This is with a difference of 145 fps between the 156 and 140, and with a G7 bc of .370 for the 156. According to applied ballistics, the 147 eld-m has a G7 bc of .315, and the 150 Sierra has a bc of .353, if Berger does it right I don't think .370 is out of the realm of possibility. [ATTACH=full]138258[/ATTACH] [ATTACH=full]138259[/ATTACH]</p></blockquote><p></p>
[QUOTE="codyadams, post: 1656127, member: 87243"] It would depend how you fudged the numbers, there are many unknowns, the bullets bc, the velocity you would get with it, and so on. When I ran estimated numbers the 156 overtook the 140 elite around 700yds in velocity, had less wind drift from the muzzle on out and more energy from the muzzle out. The only place it was outperformed by the 140 is in drop, and velocity out to 700 yds. We're only talkin a difference at 1000 yds of 4-5 inches of drift, 50 fps, a little less than 200 ft. lbs., and 1 MOA of drop. This is with a difference of 145 fps between the 156 and 140, and with a G7 bc of .370 for the 156. According to applied ballistics, the 147 eld-m has a G7 bc of .315, and the 150 Sierra has a bc of .353, if Berger does it right I don't think .370 is out of the realm of possibility. [ATTACH=full]138258[/ATTACH] [ATTACH=full]138259[/ATTACH] [/QUOTE]
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Berger 6.5mm 156 gr. bullets. . .where are they???
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