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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="osok-1k" data-source="post: 2850413" data-attributes="member: 106259"><p>I think that cases are one major factor in pressure variables. I've been using Petersen SRP cases for my 6.5 Creed and pressures went way up as compared to Hornady brass. A load that was fine in the Hornady case locked up my bolt in a Petersen case. Bought some Alpha SRP brass and weighed it against the Petersen SRP which was substantially heavier, hence less capacity, something is thicker. I measured case thickness at the neck and both were the same so it has to be somewhere else in the case. Haven't done water weight yet but the empty case is certainly heavier.</p><p></p><p>I have a Speer manual I bought in the mid seventies, obviously powders have changed in 50 years but I like to look back at it to see how much lawyer influence has occurred. It's a lot.</p></blockquote><p></p>
[QUOTE="osok-1k, post: 2850413, member: 106259"] I think that cases are one major factor in pressure variables. I've been using Petersen SRP cases for my 6.5 Creed and pressures went way up as compared to Hornady brass. A load that was fine in the Hornady case locked up my bolt in a Petersen case. Bought some Alpha SRP brass and weighed it against the Petersen SRP which was substantially heavier, hence less capacity, something is thicker. I measured case thickness at the neck and both were the same so it has to be somewhere else in the case. Haven't done water weight yet but the empty case is certainly heavier. I have a Speer manual I bought in the mid seventies, obviously powders have changed in 50 years but I like to look back at it to see how much lawyer influence has occurred. It's a lot. [/QUOTE]
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