Bob- Not to put words in ORs mouth, but He bought the rifle, a 375 ruger from a private party. Included in the sale were 50 375 ruger straight cases. apparently the original purchaser bought the cases thinking they were formed to 375 ruger rather than what would be called "basic" cases. So now he is seeking information on how to form the basic cases into ones that fit his rifle. An easily made mistake considering the on-line stores, and easily formed IF proper dies are used, however quite an expense for the forming of 50 cases and the availability of actual 375 Ruger cases.