I bought my S&W Mod.57 .41 Magnum for the same reason you bought the Magnum Research. I ordered it in 1983 with a 10-3/8" barrel. After a little practice I sent it to Magnaport and they did their majic. Next dear season I was ready for them. I had a scope on it but for the life of me I can't tell you what it was. Once the State (IA, my grandparents lived there) changed the rules, I sold the scope but still have the revolver. If it wasn't so expensive to shoot I would occassionaly. Moved up to a .22-250 for IA hunting but stayed with my .30-06 for Nebraska, and to answer Puc's question... 120 gr accelerators.
Best Thread in a long time for this old shootist. Harder and harder to get the urge to go shoot. Turn 73 in April, but still have a little kick in the old body.