Hi all. Yesterday i bought a lb of hp38.today i got a shipping confirmation on a backorder of bullseye.now i will have both.as i have'nt reloaded round 1 yet.(ever,new 2 reloading) I plan to reload and cast for 38,9x18 and 9x19.My question is ,are these 2 powders so similar that its 6 of 1,half...