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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 Sherman Magnum 20” Build
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<blockquote data-quote="CA48" data-source="post: 2135454" data-attributes="member: 21446"><p>Phorwath, I don't think I ever started getting compressed charges even at 88gr. The 215s seated at 3.722" are seated pretty far out there. I'm sure I was getting very close and il double check for you in a few days when I get back. If remember correctly powder was still just below the neck with 88gr. I made a drop tube probably around 16" and that made a big difference.</p><p></p><p>I have 565 but I've tested it in a lot of 300PRCs and 6.5 PRCs and it gets almost identical velocitys within a .5gr of h-1000 in the 78-79gr charges (milder loads).</p><p></p><p>If I had some 560 I would try it but I believe it's to fast, closer burn rate to h4831/h4350 I believe.</p><p></p><p>I'm hoping N568 will give Identical velocitys as 570 but with more ideal case fill in the SAUM sized cartridges.</p><p></p><p>My guess is RL26 will be within 30-50fps short of 570 at equal pressures.</p></blockquote><p></p>
[QUOTE="CA48, post: 2135454, member: 21446"] Phorwath, I don’t think I ever started getting compressed charges even at 88gr. The 215s seated at 3.722” are seated pretty far out there. I’m sure I was getting very close and il double check for you in a few days when I get back. If remember correctly powder was still just below the neck with 88gr. I made a drop tube probably around 16” and that made a big difference. I have 565 but I’ve tested it in a lot of 300PRCs and 6.5 PRCs and it gets almost identical velocitys within a .5gr of h-1000 in the 78-79gr charges (milder loads). If I had some 560 I would try it but I believe it’s to fast, closer burn rate to h4831/h4350 I believe. I’m hoping N568 will give Identical velocitys as 570 but with more ideal case fill in the SAUM sized cartridges. My guess is RL26 will be within 30-50fps short of 570 at equal pressures. [/QUOTE]
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30 Sherman Magnum 20” Build
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