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Rifles, Reloading, Optics, Equipment
Reloading
My 10 rd load development
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<blockquote data-quote="dok7mm" data-source="post: 1460905" data-attributes="member: 90080"><p>[ATTACH=full]101625[/ATTACH] Mikecr hit it on the head. Virgin brass can give you mixed results on where the actual nodes are & it often takes two firings, or more, to fully form. A max pressure test shouldn't be overlooked, so that's more shots. Ladder tests will more likely tell the real truth about a true node. I shoot one with .5 gr increments and fine tune with .2 gr around possible nodes. Then it's multiple 5 shot groups @ 600 to confirm.</p><p></p><p>I do 50 cases at a time, so I'm shooting around 200-250 shots. As they are all hunting rifles, I have to have it right. Ten shot repeatable results are a pipe dream.</p><p></p><p>I'm currently working on a 300 wm & 215s w/H-1000. After 100 shots to fully form brass (50) and pressure test, and two ladders, I needed to change my arbitrary seating depth to fine tune. Results below:</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1460905, member: 90080"] [ATTACH=full]101625[/ATTACH] Mikecr hit it on the head. Virgin brass can give you mixed results on where the actual nodes are & it often takes two firings, or more, to fully form. A max pressure test shouldn't be overlooked, so that's more shots. Ladder tests will more likely tell the real truth about a true node. I shoot one with .5 gr increments and fine tune with .2 gr around possible nodes. Then it's multiple 5 shot groups @ 600 to confirm. I do 50 cases at a time, so I'm shooting around 200-250 shots. As they are all hunting rifles, I have to have it right. Ten shot repeatable results are a pipe dream. I'm currently working on a 300 wm & 215s w/H-1000. After 100 shots to fully form brass (50) and pressure test, and two ladders, I needed to change my arbitrary seating depth to fine tune. Results below: [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
My 10 rd load development
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