I had a M95 that I pulled the barrel off and put on a .375 barrel, chambered for the .350 Rem Mag case necked up to .375 for a sporter.

I turned the belts off the cases as I'd cut the chamber with the top 2.0" of a .300 Win. Mag reamer and .375 neck throater. Ballistics were not too shabby - 270gr. at 2,150, about the same as the original belted .375. The barrel was only 19".

I kept the pressure fairly low and didn't push it. Broke the extractor one day, lost interest while trying to find another extractor (pre-internet) and tossed the action.

I still have the brass though, I think, along with the barrel - It would put 2-300's, 2-270's and 2-285 GS into a 2" group at 100 meters.