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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Heavy bullets in .308 Win - 200 grains and up
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<blockquote data-quote="codyadams" data-source="post: 2529336" data-attributes="member: 87243"><p>I loaded up some 215's in both a 20" and a 24" .308 win using Reloder 17. In the 24" with Hornady brass, I got initial pressure signs @ 2575, best accuracy and moderate pressure @ 2525 fps. In the 20" using Lapua brass, first signs of pressure were at 2530 fps, best accuracy was at 2500 fps. Both were factory Savage barrels with 1-10 twists, both shot exceptional.</p><p></p><p>I would suggest checking your stability prior to using up components, keep in mind, rotational velocity and stability does play a role in terminal performance, not just bc, and your twist may not be sufficient.</p><p></p><p>Bergers seem to expand down to 1600 fps, with 1800 fps being a good conservative minimum. Run your ballistics to figure out how far they are effective at your DA. At my elevation, the 20" gives me about 800 yards until 1800 fps, and a little over 1000 to 1600 fps.</p><p></p><p>The 24" dropped a 6x6 bull in it's tracks at 150 yards with a full pass through, not really surprising, just about any .308 load will do the job at ranges like that. Lot's of info out there on the 215 Berger to reference.</p><p></p><p>Also, the 20" was seated to 2.975", which was about a .115" jump. The 24" was at 2.950" to feed from an AICS mag, with a little bit longer jump as they had similar throats. This should give you an idea on heavies in a .308</p></blockquote><p></p>
[QUOTE="codyadams, post: 2529336, member: 87243"] I loaded up some 215's in both a 20" and a 24" .308 win using Reloder 17. In the 24" with Hornady brass, I got initial pressure signs @ 2575, best accuracy and moderate pressure @ 2525 fps. In the 20" using Lapua brass, first signs of pressure were at 2530 fps, best accuracy was at 2500 fps. Both were factory Savage barrels with 1-10 twists, both shot exceptional. I would suggest checking your stability prior to using up components, keep in mind, rotational velocity and stability does play a role in terminal performance, not just bc, and your twist may not be sufficient. Bergers seem to expand down to 1600 fps, with 1800 fps being a good conservative minimum. Run your ballistics to figure out how far they are effective at your DA. At my elevation, the 20" gives me about 800 yards until 1800 fps, and a little over 1000 to 1600 fps. The 24" dropped a 6x6 bull in it's tracks at 150 yards with a full pass through, not really surprising, just about any .308 load will do the job at ranges like that. Lot's of info out there on the 215 Berger to reference. Also, the 20" was seated to 2.975", which was about a .115" jump. The 24" was at 2.950" to feed from an AICS mag, with a little bit longer jump as they had similar throats. This should give you an idea on heavies in a .308 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Heavy bullets in .308 Win - 200 grains and up
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