I was thinking a model 66 .357 mag would be a nice gun to have, but do have some questions. First is, Is there a velocity limit on the ammo you can shoot out of it? I heard this but want to confirm this as rumor or truth. The gun will fire some hunting loads, will it stand up to a lifetime of hunting loads? Also I target shoot and practice alot. Is the longevity of this gun a problem. Any other know issues with this gun? I am a ruger owner but i do not like the 6 inch GP100 and have not been able to find a 6 inch Security Six used anywhere. Smith and Wesson is out of my price range. Your opinions would be most helpful