correct but its different to whats in the loads sold ...... plenty of folks have pulled loads and done the try to reverse engineer thing..... from memory the superpreformance powder is somewhat like 2213 but its not the same....where its good its awesome but it has narrow band of usefullness...really good in dirty06 with heavies etc but not so good with lighter loads...some guys had great results in .270win...others just as pedantic reloaders got erratic results....
bottom line your mate wants load something close to what he is buying....if you seat the same projectile the same depth and use a top end powder charge of whatever powder you have on hand....you arent going to be a million miles away from achieving goal..... dont believe you need to over think this...its a .308 and GENERALLY they arent fussy critters.
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