What Powder

[Lumpy Grits]

WELCOME Jim
What Don sez will get you go'n very well.
I use 2F, "E" in both my .45-70 and .45-90.
Gary

Thanks Gary, you being a Ca resident whats the match schedual here in Ca and rifle requirements as I will only be using the 45-70 trapdoor?

Jim

Not a clue-No range near me holds BPCR shoots.
FWIW: I use Starline cases in both the '70 & '90. I do anneal the case necks.
I also do a 'lite' F/L size. That is done with a .45-90 F/L die on the '70 and a .45-110 F/L die for the '90.
Gary