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I shake my head at my methodology that I used when I started loading for distance work. I'd do OCW and chrony at the same time (Chrony Beta Master), but the charges I'd pick made no sense.
Then I moved to five shot strings of each charge weight for OCW. Then dropped it to three per string. I still do three shot strings.
I'll also load 10-14 rounds of a powder range (min to above book max) and find a node using chrony data. Then load three shot strings in that node separated by .2 - .3gr in charge weight.
Things that have surprised me:
Then I moved to five shot strings of each charge weight for OCW. Then dropped it to three per string. I still do three shot strings.
I'll also load 10-14 rounds of a powder range (min to above book max) and find a node using chrony data. Then load three shot strings in that node separated by .2 - .3gr in charge weight.
Things that have surprised me:
- On multiple rifles, above published max has been the best, most accurate round. While some writer once said that the same MV / bullet / weight from a rifle will yield the same accuracy results using different powders, I find different powders behave *very* differently, even with similar MVs.
- In the "nodes" I've selected, sometimes the charge weight variation makes almost no difference in the accuracy -- telling me it's a good node. There, seating depth and my practice make the difference.