powdr
I can't be of much help here. My loads all use H 450 which is no longer available. When I read of it being discontinued, I
bought every can I could find.
I use 75 HP for coyotes and other vermin and 100 RSPCL (old stock) and 100 HSP for deer.
** From memory 43-45 grs of IMR 4350, or H 4350 now, and 100 grainers does well.
Good Luck
Jerry