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Rifles, Reloading, Optics, Equipment
Reloading
redding body die issues?
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<blockquote data-quote="el matador" data-source="post: 910316" data-attributes="member: 12193"><p>My preferred way of measuring for shoulder bump is with the RCBS precision mic tool. You put a fired case into the tool and it takes a measurement off a datum point on the shoulder. Then bump the shoulder slightly and measure it...you want to be .001-.002 shorter. This can be tricky to achieve since the body die has no micrometer adjustment and one turn of the die is about 70 thousandths. Bumping the shoulder more than .002 won't be catastrophic by any means, you'll just be working the brass more than you need to. You'll also be begging for "the dreaded donut" to make an appearance.</p><p></p><p>The precision mic tool is about $40-50 if I remember but it's one of those things that's very nice to have. It also allows you to measure the distance to your lands accurately.</p></blockquote><p></p>
[QUOTE="el matador, post: 910316, member: 12193"] My preferred way of measuring for shoulder bump is with the RCBS precision mic tool. You put a fired case into the tool and it takes a measurement off a datum point on the shoulder. Then bump the shoulder slightly and measure it...you want to be .001-.002 shorter. This can be tricky to achieve since the body die has no micrometer adjustment and one turn of the die is about 70 thousandths. Bumping the shoulder more than .002 won't be catastrophic by any means, you'll just be working the brass more than you need to. You'll also be begging for "the dreaded donut" to make an appearance. The precision mic tool is about $40-50 if I remember but it's one of those things that's very nice to have. It also allows you to measure the distance to your lands accurately. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
redding body die issues?
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