js
I have the 41 GNR in a S&W Mod 657 , I flat love this round , the 170's do move down range thats for sure , out of a 8" barrel I get an honest 2050 FPS across my Chrono with a max load of H110 .
I also shoot the Lee 190's , 210's and some GC'ed 255's in mine , all are very good bullets for this round , it can be loaded down to 41 mag levels or up to OUCH levels depending on your needs .
stimpy