RickT Posted July 3, 2023 Share Posted July 3, 2023 It's been several years since I transitioned for N320 to SP, but I've got 12 lbs. of N320 on hand to use. I can't find my old notes, but as I recall the load difference for a given PF wasn't more than 0.2 gr (I can't call whether + or -!). My normal Steel Challenge load for a 9mm gov't 1911 is 3.3 gr SP, 3.5gr for a Commander, again for SC. I can start with the identical powder charge, but does anyone who map the N320 to SP transition recall the charge difference? Link to comment Share on other sites More sharing options...
RickT Posted July 4, 2023 Author Share Posted July 4, 2023 Found early notes in my way-back machine. N320 ~ SP + 0.2 gr. Close enough for a starting point. Also found a bit more SP in my powder closet. Link to comment Share on other sites More sharing options...
xrayfk05 Posted July 4, 2023 Share Posted July 4, 2023 No-one can give you any advice if you don't mention the caliber and the bullet weight. But I guess you helped yourself? Also what is SP? Sport Pistol? Link to comment Share on other sites More sharing options...
ysrracer Posted July 6, 2023 Share Posted July 6, 2023 I can't even spell "SP", but I heard it's good stuff. Link to comment Share on other sites More sharing options...
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