Howdy!
I was able to get an Uberti made, S&W New model #3 in 45 colt to run with my 45 colt Goex BP rounds without the cylinder locking up, or sticking, even with the tiny cylinder bushing, for enough rounds to shoot a match and then some, without having to stop to clean or re-prep. I initially prepped the gun with straight Ballistol, inside and out, and covered the cylinder pin itself and the exterior of the tube it slips into with copious amounts of Bore Butter. The grip design made it uncomfortable to shoot, though, compared to my Ruger old model Vaquero in the same caliber, and the clean up was more labor intensive due to the design of the cylinder and needing to unscrew it to get it off and clean it and the lock on the top strap. I have since decided it's a smokeless gun now!