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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cartridge Selection 6.5CM, .308, .300WM
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<blockquote data-quote="Prieto9000" data-source="post: 1122645" data-attributes="member: 24952"><p>The 215gr .30 cal will only carry more energy than the 140 6.5mm all the way down range, but the trajectory of the 6.5 is flatter and has less wind drift unless you´re launching your bullets around 2700 fps.</p><p>The wind drift for a 10 mph wind for the 140 berger @2878 fps is 76" @1000m</p><p>The wind drift for a 10 mph wind for the 215 berger @2500 fps (which i find very generous) is 88" @ 1000m</p><p></p><p>The energy for the 140 berger @2878 fps is 675 ft-lbs @1000m</p><p>The energy for the 215 berger @2500 fps is 868 ft-lbs @1000m</p></blockquote><p></p>
[QUOTE="Prieto9000, post: 1122645, member: 24952"] The 215gr .30 cal will only carry more energy than the 140 6.5mm all the way down range, but the trajectory of the 6.5 is flatter and has less wind drift unless you´re launching your bullets around 2700 fps. The wind drift for a 10 mph wind for the 140 berger @2878 fps is 76" @1000m The wind drift for a 10 mph wind for the 215 berger @2500 fps (which i find very generous) is 88" @ 1000m The energy for the 140 berger @2878 fps is 675 ft-lbs @1000m The energy for the 215 berger @2500 fps is 868 ft-lbs @1000m [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cartridge Selection 6.5CM, .308, .300WM
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