Thread: 250-303

Greetings again,
I managed to find a bit of info on the interweb. This is essentially a wildcat cartridge but it appears from the case dimensions that the original .303 case is left the same from the base to the body shoulder junction. The shoulder angle is increased to 20 degrees so part of the shoulder is set back during forming in your die. The barrel twist is likely to be 1 in 12" but still needs to be checked to be sure. Case capacity is between that of the .250 Savage and the .257 Roberts but as many of the .250-303 rifles are built on No1 Lee Enfields performance is likely to be closer to the Savage and perhaps a little lower.
Regards Grandpamac.

Grampamac. my gun smith believes that the fella that chambered the gun didn't run the reamer far enough into the barrel. gun is built on a Mauser 96 action