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Hunting
Long Range Hunting & Shooting
308 Win vs 6.5 Creedmoor
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<blockquote data-quote="nralifer" data-source="post: 2689601" data-attributes="member: 94556"><p>The difference is simply a BC problem. The G7BC of the Berger 0.288 and that of the SMK is about 0.240 which is going 350 fps slower to start with. The result is predictable. Try recalculating with the 308 shooting a 175 gr BD2 bullet at 2750 fps whose G7 BC is 0.310. At standard conditions the 308 shooting the heavier bullet has more energy at virtually any distance, is passing the 130 gr bullet at 500 yds with 460 ft# more energy, and at 1000 yards has 395 ft# more energy. Wind drift at 1000 yds still favors the 308 Win.</p></blockquote><p></p>
[QUOTE="nralifer, post: 2689601, member: 94556"] The difference is simply a BC problem. The G7BC of the Berger 0.288 and that of the SMK is about 0.240 which is going 350 fps slower to start with. The result is predictable. Try recalculating with the 308 shooting a 175 gr BD2 bullet at 2750 fps whose G7 BC is 0.310. At standard conditions the 308 shooting the heavier bullet has more energy at virtually any distance, is passing the 130 gr bullet at 500 yds with 460 ft# more energy, and at 1000 yards has 395 ft# more energy. Wind drift at 1000 yds still favors the 308 Win. [/QUOTE]
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308 Win vs 6.5 Creedmoor
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