I have one of Gary's 41 GNR S&W's , its a 657 with a 8" barrel , mine loves the heavier cast bullets , so far the 265g GC-SWC seem to be doing best , but don't over look the Lee 190g or the 215g TL-SWC , both shoot very well .
For jacketed bullets , the Sierra 170g is hard to beat over a full charge of H-110 and the nice thing about the 41 GNR is that it can be loaded down to normal 41 Mag levels or max-ed out to well past what a 44 Mag can do .
stimpy