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Hunting
Long Range Hunting & Shooting
Done with 215 Bergers
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<blockquote data-quote="david77" data-source="post: 2011404" data-attributes="member: 100467"><p>Another thing to consider with bergers is thier stability factor. For example: if your load is 2700 fps from a 1-10" twist, you may have marginal stability. It may be stable enough for ½ minute accuracy, but have marginal stability for terminal performance. This has been an issue for me with the 156 elite hunter at 2700 fps ( 6.5 creedmoor). I was getting great accuracy from my 8 twist but weird results on game. The berger stability calculator said I had marginal stability at 2700. I switched to rl-26 and got my velocity up to 2875 fps, stability increased and terminal performance has greatly improved. My experience is with white tail and hogs anywhere from 30 to 750 yards.</p><p></p><p>Long story short, people claiming that you need to be driving the 215 at 3000 fps are correct, but maybe for the wrong reasons. It isn't about energy or impact velocity, it's about stability! A faster muzzle velocity generates more rpm's out of the same barrel vs slower velocity.</p></blockquote><p></p>
[QUOTE="david77, post: 2011404, member: 100467"] Another thing to consider with bergers is thier stability factor. For example: if your load is 2700 fps from a 1-10" twist, you may have marginal stability. It may be stable enough for ½ minute accuracy, but have marginal stability for terminal performance. This has been an issue for me with the 156 elite hunter at 2700 fps ( 6.5 creedmoor). I was getting great accuracy from my 8 twist but weird results on game. The berger stability calculator said I had marginal stability at 2700. I switched to rl-26 and got my velocity up to 2875 fps, stability increased and terminal performance has greatly improved. My experience is with white tail and hogs anywhere from 30 to 750 yards. Long story short, people claiming that you need to be driving the 215 at 3000 fps are correct, but maybe for the wrong reasons. It isn't about energy or impact velocity, it's about stability! A faster muzzle velocity generates more rpm's out of the same barrel vs slower velocity. [/QUOTE]
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Done with 215 Bergers
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