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Rifles, Reloading, Optics, Equipment
Reloading
how important is case length to accuracy?
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<blockquote data-quote="boomtube" data-source="post: 829581" data-attributes="member: 9215"><p>"<em>WOW. Well said and so true. yet I'll still trim mine because I'm a hobbyist and I have reloading-related OCD</em>." </p><p> </p><p>So do I, within reason. Certainly case trimming is important for both safety and, potentially, accuracy but after a point the consistancy won't matter a bit. I know much of my picky case prep is to satisfy myself but I have no illusions I'd want to pass on to others that some of what I do is going to make any detectable difference for me or anyone else.</p><p> </p><p>Cases that are properly sized to match the chamber it's fired in will grow quite slowy. Those that get the shoulders set much too far back will stretch quite fast. For what it's worth, I trim to SAAMI length (within a thou or two more or less) and usually trim again after it exceeds about 5 thou, usually takes 3-5 hot load firings; I know my chamber lengths and that's quite safe FOR ME. </p><p> </p><p>Book "trim to" case length is always 10 thou less than max but that's only a common sense suggestion, it's NOT a specification to be adhered to or die.</p></blockquote><p></p>
[QUOTE="boomtube, post: 829581, member: 9215"] "[I]WOW. Well said and so true. yet I'll still trim mine because I'm a hobbyist and I have reloading-related OCD[/I]." So do I, within reason. Certainly case trimming is important for both safety and, potentially, accuracy but after a point the consistancy won't matter a bit. I know much of my picky case prep is to satisfy myself but I have no illusions I'd want to pass on to others that some of what I do is going to make any detectable difference for me or anyone else. Cases that are properly sized to match the chamber it's fired in will grow quite slowy. Those that get the shoulders set much too far back will stretch quite fast. For what it's worth, I trim to SAAMI length (within a thou or two more or less) and usually trim again after it exceeds about 5 thou, usually takes 3-5 hot load firings; I know my chamber lengths and that's quite safe FOR ME. Book "trim to" case length is always 10 thou less than max but that's only a common sense suggestion, it's NOT a specification to be adhered to or die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
how important is case length to accuracy?
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