I have a 6" bought in the FRG in the early 80's with presentation case. I took it to our local qualifiying range one time. Only ammo I could find was in a German shop and it was 25 USD a box (Remington, IIRC). The target of choice was a large 1 liter glass Coke bottle filled with water at 25 m. I hit it on the 2nd or 3rd shot. Only thing left was the metal cap.
The old German who ran the range was always helping us poor GI's out so we let him have trigger time on whatever we had (M16's, M60's, M1911A1's and whatever POW's we brought out). In all my time in the FRG, he was one of two Germans I met who admitted to fighting against Americans in WWII. He hated the Russians (he'd been on the Eastern Front and was missing toes and fingers from frostbite) and made sure he surrendered to the Americans.
Also have an OMBH with 4 5/8" barrel and a 657. Love the 41, especially since I hand load for it.