Update. Went over to A and A gunsmiths to fetch my little Rossi .357 back after a repair and slick up job and asked Alan
if he had N120 in stock. Explained I was looking for a replacement powder for 45/70 as I couldn't get hold of H4198. He
says iv got 2 pots of H4198 on the shelf. Sold, so am now ok for a while. One of the guys I shoot with has the same SBL
Marlin and he is using N120 which seems to shoot very well.
Thanks for all the input. As a foot note I cant recommend A and A enough, first time iv used them and well impressed with
their helpful manner and prices. The Rossi is now as slick as a slick thing from slicksville.! Tim