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Rifles, Reloading, Optics, Equipment
Reloading
Case length variation in new brass and accuracy
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<blockquote data-quote="Les in Wyoming" data-source="post: 2621805" data-attributes="member: 115820"><p><strong>I am sorting out my brass and started by measuring the over all length of the case. My once fired cases vary as much as .014. So then I went to a new bag of cases and found the difference to be the same. Most are all under the spec length (which I take to be the recommended limit length). I don't remember if I even messed with case length, but rather focused on cartridge overall length once the bullet was set. This is for a 300 WM and I like sub 1/2 MOA. The spec in the book is 2.620. So, these are my questions: 1) How critical is case length? 2) What tolerance of variation do you allow? 3) how much below the 2.620 should I consider too much? </strong></p><p><strong></strong></p><p><strong>My hunch right now it to trim them all to 2.610 and throw away all others. But if 2.605 is OK, it would save me a lot of brass. It all depends on how critical this is. I greatly appreciate input. Thanks. Les</strong></p></blockquote><p></p>
[QUOTE="Les in Wyoming, post: 2621805, member: 115820"] [B]I am sorting out my brass and started by measuring the over all length of the case. My once fired cases vary as much as .014. So then I went to a new bag of cases and found the difference to be the same. Most are all under the spec length (which I take to be the recommended limit length). I don't remember if I even messed with case length, but rather focused on cartridge overall length once the bullet was set. This is for a 300 WM and I like sub 1/2 MOA. The spec in the book is 2.620. So, these are my questions: 1) How critical is case length? 2) What tolerance of variation do you allow? 3) how much below the 2.620 should I consider too much? My hunch right now it to trim them all to 2.610 and throw away all others. But if 2.605 is OK, it would save me a lot of brass. It all depends on how critical this is. I greatly appreciate input. Thanks. Les[/B] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case length variation in new brass and accuracy
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