I have had one annoyance, empty casings are very hard to push out until they cool down. If I put it aside five minutes then they push out. I guess the cylinder is rough but can't see any problem.
Quentin2, without seeing the gun my guess would be the cylinder chambers are bored a little on the large side.
Thanks for that possibility, Bob. I'll have to measure the cylinders to find out if that's the case. I hadn't thought of a possible manufacturing issue, just rough surfaces in the cylinder. I'll have to run this by Cimarron if only to test their customer support and see what they think.
If it is the case, hopefully it's rare and wouldn't affect current Model Ps if you get one. (I haven't heard anyone else complain of this.) I hope I am able to get a 45ACP cylinder eventually since it's easier to find than 45 Colt. Ordered one 4 months ago and last update was that Uberti was very slow getting them into the USA so no ETA yet.