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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.260 pressure problems.
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<blockquote data-quote="Jason millichamp" data-source="post: 1669850" data-attributes="member: 109739"><p>Thanks aus hunter. I do get my brass annealed and the problems I'm having are with new lapua brass only been fired once. I haven't changed my dies and haven't been doing anything different. Which is why I think the advice re batch powder differences may be the problem.</p><p>The load info for 140 grn on the adi website is for nosler partition which are flat bottom straight sided projectile not the same as mine. They have more bearing surface on the barrel and subsequently more frictional resistance to going down the barrel. more pressure. If you look at the 142 grn hpbt bullet on that site you will see that the max is 44.5 grns. These bullets are the same profile as mine and heavier so it would be safe to use that as a max.</p><p>Cheers.</p></blockquote><p></p>
[QUOTE="Jason millichamp, post: 1669850, member: 109739"] Thanks aus hunter. I do get my brass annealed and the problems I'm having are with new lapua brass only been fired once. I haven't changed my dies and haven't been doing anything different. Which is why I think the advice re batch powder differences may be the problem. The load info for 140 grn on the adi website is for nosler partition which are flat bottom straight sided projectile not the same as mine. They have more bearing surface on the barrel and subsequently more frictional resistance to going down the barrel. more pressure. If you look at the 142 grn hpbt bullet on that site you will see that the max is 44.5 grns. These bullets are the same profile as mine and heavier so it would be safe to use that as a max. Cheers. [/QUOTE]
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.260 pressure problems.
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