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Rifles, Reloading, Optics, Equipment
Reloading
First loads after annealing, no neck tension
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<blockquote data-quote="Bart B" data-source="post: 369088" data-attributes="member: 5302"><p>I think it's a combination of both the metalurgy and factory annealing as well as how thick it is. Reshaping brass work hardens it.</p><p></p><p>A friend did a similar test with his .308 Win. and he used WCC match brass made in 1958 for the US Olympic team. That brass only weighs 151 grains and has fairly thin walls. He got 57 reloads on his test case before running out of test powder. The rifle was clamped in a machine rest and the 57-shot group at 100 yards was about 3/10ths inch on centers with Sierra 168 HPMK's.</p><p></p><p>I don't think he was sizing case body down and setting the shoulder back more than one thousanth. Thay may well have contributed to his success.</p></blockquote><p></p>
[QUOTE="Bart B, post: 369088, member: 5302"] I think it's a combination of both the metalurgy and factory annealing as well as how thick it is. Reshaping brass work hardens it. A friend did a similar test with his .308 Win. and he used WCC match brass made in 1958 for the US Olympic team. That brass only weighs 151 grains and has fairly thin walls. He got 57 reloads on his test case before running out of test powder. The rifle was clamped in a machine rest and the 57-shot group at 100 yards was about 3/10ths inch on centers with Sierra 168 HPMK's. I don't think he was sizing case body down and setting the shoulder back more than one thousanth. Thay may well have contributed to his success. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
First loads after annealing, no neck tension
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