soooo.......in a nutshell, i have two sons at the age of using their first big bore pistols. sold a bfr 475 (nice gun) and ordered a 7.5" M 83 454 casull so we'd all have the same calibers for reloading purposes. plus i think the 454 is the best in the FA anyways. that said, i got mine in and to be honest i wasn't as impressed with cylinder "tightness" as i had been on previous FA guns i've had. my 10" is phenomenal. i called FA and was told to send in the gun for them to look it over. keep in mind, this wasn't a "loose" gun by any stretch but just not quite what i had in my others. still didn't rattle if you shook it. well, in less than 7 days i got a call saying it was done and on the way. not sure how they did it but they tightened up the cylinder and it's like a vault at a swiss bank. awesome gun and awesome customer service. thanks again!!!!!!!!!!!!!!!!!!!!