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Rifles, Reloading, Optics, Equipment
Reloading
Interpreting Pressure Signs from Velocity (260 Remington load dev)
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<blockquote data-quote="1Moose" data-source="post: 1397931" data-attributes="member: 74044"><p>Bob, </p><p></p><p>Thank you for the detailed response on loads as well as how I might use web expansion to get some good info. I need to read up more on how to best measure the case web expansion. My early looks into that measurement had me confused (or maybe frustrated) for a couple of reasons. I need to dig in more and add it to my process. The frustrations that thwarted me originally, in case maybe I'm making this harder than I need to:</p><p>1) I read in places that I needed possibly a more accurate tool than my caliper which accurate to .001 (but shows measurements to the ten-thousandths, i.e., 0.0005)</p><p>2) It seemed I needed to get factory loads that used the same brass to use as a baseline (using unfired brass).</p><p></p><p>I do have another 100 Lapua cases (unfired), so I could mimic things, but I'd need to get a box of cartridges that use Lapua brass it seems, and possibly a better caliper?</p><p></p><p>To your question on extreme spread, I'd need to look that up at home. I recall the standard deviation to look pretty good (albeit from a small sample of shots for each Load).</p><p></p><p>Thanks again for your response. I appreciate the time you put into helping me out.</p></blockquote><p></p>
[QUOTE="1Moose, post: 1397931, member: 74044"] Bob, Thank you for the detailed response on loads as well as how I might use web expansion to get some good info. I need to read up more on how to best measure the case web expansion. My early looks into that measurement had me confused (or maybe frustrated) for a couple of reasons. I need to dig in more and add it to my process. The frustrations that thwarted me originally, in case maybe I'm making this harder than I need to: 1) I read in places that I needed possibly a more accurate tool than my caliper which accurate to .001 (but shows measurements to the ten-thousandths, i.e., 0.0005) 2) It seemed I needed to get factory loads that used the same brass to use as a baseline (using unfired brass). I do have another 100 Lapua cases (unfired), so I could mimic things, but I'd need to get a box of cartridges that use Lapua brass it seems, and possibly a better caliper? To your question on extreme spread, I'd need to look that up at home. I recall the standard deviation to look pretty good (albeit from a small sample of shots for each Load). Thanks again for your response. I appreciate the time you put into helping me out. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Interpreting Pressure Signs from Velocity (260 Remington load dev)
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