If the rifle is chambered for 9.3x72R(or even 9.3x57R or 9x58 1/2R S&S),a fireformed original length 38-55 case is not long enougth to use in place of a chamber cast.The new short 38-55 cases are the same as 30-30/32 Win.Spec cases, for ease in loading 38-55 ammo.
Mike