I went shooting with a buddy up in College Station. He brought a friend with him who wanted me to look at a couple of guns that had belonged to the friend's dad. The friend's dad was a WWII Marine who made every landing the 2nd Marine Division participated in 1943. One gun was a pretty generic '03A2 post war rebuild with a scant stock. Nice gun but unremarkable.
The other was a different story. It was a 5 screw M&P revolver that was so heavily plated that it was difficult to read some of the lettering. It did have "England" on the cylinder. The barrel had been cut down to the front of the ejector rod which included the removal of the front locking assembly on the barrel. The original ejector rod went to the end of the cut down barrel. The original front sight had been removed and silver soldered onto the cut down barrel. There was no way to determine the caliber by looking at it, but I told the fellow I suspected that it was a cut down "Victory Model" used by the Brits. He had some generic .38 Special ammo that he fired through it. The gun was accurate but shot very low, as might be expected. The ejected cases told the tale on caliber. The .38 Special nickel plated cases were seriously blown out, but not ruptured in front of the case head.
I suggested that in the future, if he shot the gun, he should try to find some .38 S&W ammo for it. It was a shame to see the old girl in such condition, not only cut down but very badly cut down in the deal.