Did anybody try cutting the 458 win cases down to 1.8 inches?
I live in zone 3 and had the same idea with trying that in my Whitworth.
If you cut over 5/8's of an inch off the Winchester case would you have to anneal the brass?
Would the loadings for the 450 Bushmaster be a good starting point?
The bullet could be seated out farther for more volume and the 458 has quite a bit higher working pressure
than the 450.
Would like to test it to see how accurate it would be.
