I have always loaded 357 SIG with 147 gr bullets and AA#9. There are a lot of things I like about this load: pleasant to shoot, accurate, clean burning, and I like the fact it is a compressed load as a guard against bullet setback in this caliber.
But, AA#9 always drives me nuts. The stuff is so fine grain it is always wandering out and jamming up my powder bar (Dillon 550b).
Does anyone have a substitute powder that works will in 357 SIG with 147 gr bullets? Hopefully a compressed load?
I don't want to go with lighter bullets because I have a boat load of 147 gr JHP laying around.
Or, does anyone have a good tip to reduce/eliminate powder migration with AA#9?
But, AA#9 always drives me nuts. The stuff is so fine grain it is always wandering out and jamming up my powder bar (Dillon 550b).
Does anyone have a substitute powder that works will in 357 SIG with 147 gr bullets? Hopefully a compressed load?
I don't want to go with lighter bullets because I have a boat load of 147 gr JHP laying around.
Or, does anyone have a good tip to reduce/eliminate powder migration with AA#9?