Starting from scratch, load development
I have been waiting for good weather to do my load testing since December and today was perfect! Unfortunately I had an eye exam and couldn't take advantage 🙁
So, tonight I am organizing my thoughts and ammo to use the next weather opening. For my .223 T3 Sporter I plan to do the following:
My first load recipe will use the 75 gr A-Max (moly coated) and the new IMR 4166 with once fired ww brass neck sized (got my Lee collet mandrels in -1 and -2 thou finally since my standard one was too big). I am going to follow Erik Cortina's OCW method as described on “accurate shooters.com). Also planning a Varget OCW and the same with 80 gr SMK's.
Starting load for 75 gr A-max, and 80gr SMK's with IMR 4166 at 20 gr and max at 24+ depending on pressure signs and case capacity.
Starting Varget at 22 gr and ending at 26+ depending on pressure signs and case capacity.
I use a Frankford arsenal funnel with ~10 in. Drop tube to minimize the “crunch” on compressed loads.
I load in .3 gr increments for initial testing and use a pro-chrono chronograph to record vel.
Finally I have a bunch of JLK LD 65 gr hp bullets I want to try but that would be a big day.
Any recommendations or comments?
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