imr 7828

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    285gr 338 Lapua Data?

    Hi everyone, I’m trying to work up a new load for my 338 Lapua using New Hornady brass, 285gr Hornady ELD-M projectiles and cci large magnum rifle primers, but I’m limited on my powder choice and there doesn’t seem to be much data listed for 285gr or any of the powder that I have on hand. I...