I've got a Victory that was butchered, I mean modified by Cogswell and Harrisson for cheap sales back to the US. The barrel was cut down to 3.5" and the chambers were reamed to accept .38 Special brass.
Well, you could put .38 Special brass into the gun, but the brass would bulge and was garbage after firing. There was also the possiblity of a ruptured case. I don't know how they ever managed to sell these guns.
To put the gun back in service, I picked up an old .38 Special cylinder and fitted it to the gun. It works fine now. Accuracy is very good (as good as you can ask for from a service gun) and I have not had any problems shooting this gun with the 0.004" overbore.