Rockrat, the oversize cylinder throats seems to be a common problem with Colt's of past years. Hopefully they have caught on and tightened up their specs. Even the imports have corrected that mistake. And the imports only had oversize cylinder throats when they first started making single actions because they had copied their specs directly from old Colts. You have to remember though, that most of the old cartridges were round nose, with a small cup in the bottom and made of soft lead. They would 'bump up' easily and fill those large throats, and shoot acurately. However we now love hard cast, flatnose bullets driven fast. Those don't 'bump up' so easily, unless in a magnum. So although Colt did it properly for the ammo of the time, we now know that correctly sized throats aid accurate shooting and Colt needs to get on the bandwagon. Yup, it does make the Ruger flat top look better all the time, don't it. Ah, but it still ain't a Colt! 44 Man