10mm SUCKS!
Oh wait a minute, - Nevermind.
Seriously, I have a 5" 610 reamed to 10mm Mag. I can shoot a 135 .40 S&W load at 1100 fps, in an N frame it kicks like a .38 in a 686. My 10mm Mag loads (Beartooth 200 gr w/ canalure or 220 LFP) are clean into the .41 Rem Mag's lunch. I've shot 8...