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Old January 26, 2013, 09:46 AM   #28
Join Date: March 4, 2005
Location: Ohio
Posts: 14,041
I'll double up on what Jimro said. I'll just add that your weight increments are about twice what Dan Newberry's OCW method employs, for the reason that you can miss a sweet spot or at least fail to find its true center with bigger increments. He uses 0.7% to 1% times the load as an increment, so, within practical limits, either 0.2 grain steps to 0.3 grain steps in your case.

If you use 0.3 grain steps, I would go from 23.9 to 24.5 grains to start. If all three did not look good, I would switch to 0.2 grain increments and go from 23.8 to 24.8 just to see if the center of the accuracy range gets easier to identify.
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