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Rifles, Reloading, Optics, Equipment
Reloading
Fast twist = more pressure?
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<blockquote data-quote="Pdvdh" data-source="post: 1455591" data-attributes="member: 4191"><p>If I recall correctly, Kirby Allen reported that Lapua brand 338 Lapua Mag cases likewise would expand on the first firing at the case head diameter, but would then hold together for multiple firings at those pressures. I experience much the same with my 338 Lapua brass.</p><p>So quality brass seems to be an outlier from the rules of thumb that commonly apply to lower strength brass case heads, which continue to expand their primer pockets with additional firings.</p><p>As far as Peterson brass, I had one guy tell me he preferred it over Lapua in his 338 Lapua Mag. That after he completed direct comparison testing on both brands in his 338 Lapua Improved. He said it was both tougher and more uniform.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1455591, member: 4191"] If I recall correctly, Kirby Allen reported that Lapua brand 338 Lapua Mag cases likewise would expand on the first firing at the case head diameter, but would then hold together for multiple firings at those pressures. I experience much the same with my 338 Lapua brass. So quality brass seems to be an outlier from the rules of thumb that commonly apply to lower strength brass case heads, which continue to expand their primer pockets with additional firings. As far as Peterson brass, I had one guy tell me he preferred it over Lapua in his 338 Lapua Mag. That after he completed direct comparison testing on both brands in his 338 Lapua Improved. He said it was both tougher and more uniform. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Fast twist = more pressure?
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