I have a Ruger No.1 that was re-barreled to .375 Nitro Express Rimless. Don't know why someone would rebarrel a modern rifle for an obsolete round but I like it for what it is. I used 8mm Mauser cases to form the 9.5x57 M-S. I was lucky enough to find a used set of RCBS dies cheap at an auction. I also use Quality Cartridge cases now that they are in production. I will use it for deer hunting locally so I tried the 220 gr. Hornady intended for the .375 Winchester. I used 50.0 of IMR 4895 for 2345fps, OAL 2.8". I also like the Barnes 235gr. TSX bullet loaded with 46.4 of IMR 3031 2267fps with an OAL of 2.955