msb45 check my post above about the model 445 .44 Spl. My 605 also has a very tight cylinder barrel gap, but has not caused a problem yet. I requested that Taurus open the gap a bit on my 445, which they did, and that stopped the cylinder jamming. That may be all your 605 needs. Taurus had my gun back within a couple of weeks, and it works fine now. My 605 has always done well with evey load I feed it. I prefer using very hot loaded .38spl loads, as I can load them up to .357 factory level cheaper than using magnum cases. I like Hornady's 140gr XTP. So does the 605!