I did some 257 Robts case from .270 cases years ago, found I had to neck ream them as there was quite a bit of thickening at the base of the neck where the .270 shoulder was swaged into the .257...
Type: Posts; User: shananah
I did some 257 Robts case from .270 cases years ago, found I had to neck ream them as there was quite a bit of thickening at the base of the neck where the .270 shoulder was swaged into the .257...