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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Pros/Cons of 30 vs 40 degree shoulder?
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<blockquote data-quote="Mikecr" data-source="post: 2583652" data-attributes="member: 1521"><p>They should talk to Weatherby about their process for double radius shoulders (something we can also do).</p><p>They likely form the neck first and shoulder last.</p><p></p><p>Fire forming is not difficult in a true Ackley chamber, as there is built in crush at the neck-shoulder junction, to remove headspace, just for this operation. A false shoulder can also be installed by the reloader with a mandrel and bushing.</p><p>You may have some failures, cracks where the original body-shoulder junction was. This is either due to poor factory case forming, or because a reloader did not pre-anneal correctly.</p><p></p><p>You should be ok for most cases, and you should be rewarded with extra brass life to make up for a few lost.</p><p>I had a 6Dasher for a while, Lapua 6br parent cases, never lost one to a problem. This was brown box muntz metal alloy (very hard).</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2583652, member: 1521"] They should talk to Weatherby about their process for double radius shoulders (something we can also do). They likely form the neck first and shoulder last. Fire forming is not difficult in a true Ackley chamber, as there is built in crush at the neck-shoulder junction, to remove headspace, just for this operation. A false shoulder can also be installed by the reloader with a mandrel and bushing. You may have some failures, cracks where the original body-shoulder junction was. This is either due to poor factory case forming, or because a reloader did not pre-anneal correctly. You should be ok for most cases, and you should be rewarded with extra brass life to make up for a few lost. I had a 6Dasher for a while, Lapua 6br parent cases, never lost one to a problem. This was brown box muntz metal alloy (very hard). [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Pros/Cons of 30 vs 40 degree shoulder?
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