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Rifles, Reloading, Optics, Equipment
Reloading
brass trimming
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<blockquote data-quote="QuietTexan" data-source="post: 2515146" data-attributes="member: 116181"><p>You're missing the core point of why do the cases grow and become different in the first place - that's the real question. If you're starting with high quality, uniform brass why are you having to de-uniform them by trimming some and not others? If only some need to be trimmed and not others, either the variance is being introduced by the resizing steps, or the brass if of poor quality to begin with so why waste time with it. It's very important for cases to be uniform, if they start that way and end up in difference places, the odds are very good there's a flaw in a step where inconsistency is being added. Excessive sizing, cutting to an arbitrary length, and trimming new brass are all ways inconsistencies are added to brass.</p><p></p><p>Don't look at it backwards and say "get the cases to be the same as possible"; good cases START that way, and inconsistencies get added along the way. You said why wouldn't cases grow, my question is why DO they grow when they're expanding to the same dimensions every firing.</p><p></p><p>ARs don't really have a place in this discussion, that action has no camming power and when loaded for functionality will best chamber minimum spec cases. That's prioritizing function over precision and case life, and not relevant to discussing how brass shouldn't grow over multiple firings when you remove excess resizing from the process.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2515146, member: 116181"] You're missing the core point of why do the cases grow and become different in the first place - that's the real question. If you're starting with high quality, uniform brass why are you having to de-uniform them by trimming some and not others? If only some need to be trimmed and not others, either the variance is being introduced by the resizing steps, or the brass if of poor quality to begin with so why waste time with it. It's very important for cases to be uniform, if they start that way and end up in difference places, the odds are very good there's a flaw in a step where inconsistency is being added. Excessive sizing, cutting to an arbitrary length, and trimming new brass are all ways inconsistencies are added to brass. Don't look at it backwards and say "get the cases to be the same as possible"; good cases START that way, and inconsistencies get added along the way. You said why wouldn't cases grow, my question is why DO they grow when they're expanding to the same dimensions every firing. ARs don't really have a place in this discussion, that action has no camming power and when loaded for functionality will best chamber minimum spec cases. That's prioritizing function over precision and case life, and not relevant to discussing how brass shouldn't grow over multiple firings when you remove excess resizing from the process. [/QUOTE]
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