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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump problem? Not far enough?
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<blockquote data-quote="Bart B" data-source="post: 867509" data-attributes="member: 5302"><p>Yes, and you asked an intelligent question. And the .002" bump you exampled is about perfect for most bottleneck cases.</p><p></p><p>You'll need something that fits the same place on the case shoulder each time to make measurements accurate.</p><p></p><p>Some folks have used a 3/8ths inch inside diameter nylon or metal bushing 1/2 inch long for 30 caliber bottleneck cases, put that on the case neck against the shoulder then used a caliper to measure case head to far end of bushing. Doing this before and after full length sizing a case tells you the difference in head to shoulder measurements.</p><p></p><p>Or buy an RCBS Precision Mic or Hornady LNL case gauge to do the same thing.</p></blockquote><p></p>
[QUOTE="Bart B, post: 867509, member: 5302"] Yes, and you asked an intelligent question. And the .002" bump you exampled is about perfect for most bottleneck cases. You'll need something that fits the same place on the case shoulder each time to make measurements accurate. Some folks have used a 3/8ths inch inside diameter nylon or metal bushing 1/2 inch long for 30 caliber bottleneck cases, put that on the case neck against the shoulder then used a caliper to measure case head to far end of bushing. Doing this before and after full length sizing a case tells you the difference in head to shoulder measurements. Or buy an RCBS Precision Mic or Hornady LNL case gauge to do the same thing. [/QUOTE]
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Reloading
Shoulder bump problem? Not far enough?
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