Was looking at the web on powders, came across a powder which is "Swiss" SS210. They say it's the same as IMR 4198 and use it as per the reloading manual. 308, 223 etc. Has any one tryed this powder in the 45-70 BC for its load? My manual (IMR) says 38gr of IMR 4198 at 27,400 CUP (405 bullet) Thanks, beng