I have three '73s and each is matched to a pair of 4 3/4" ER revolvers, one complete set each in 357, 44-40 and .45. I actually use the 45s most often for SASS but, for whatever reason, call the 44-40s my favorites?? The 357s are used strictly for the odd occasions on which I feel a real need to see targets for some odd reason and shoot smokeless. Mind games, to explain an addiction, I guess.