What I have today (#7) is faster burning than default in QL default by 4.2%, which is outside the usual industry standard of plus/minus 3%. That makes the advice of "start low and work up" very wise. I have used the pound I have in heavy bullet .45 ACP and .45 Super, and velocities have been very predictably higher than the QL projection. Any increases in the initial charge have also been linear, at least into the 25 Kpsi region, so I'm still within the powder's comfort zone at that pressure.
I'll take small steps up into the 34 to 35 Kpsi region, looking for inconsistency. It wouldn't hurt to try Longshot anyway, just as an alternative.
Dontcha just hate a valid reason to shoot more??
My Rowland is also a Clark kit.
