The rifling is almost totally gone from shooting : a .303 /.312 diameter bullet will drop right down the barrel . The rifle was owned by an old Boer and was given to me by his family . It has been immaculately kept but the bore has been shot out . I plan to have it rebored and chambered to 338/303 unless someone has a better idea . I can use my .303 resizing die with a 338 expander ball . I want to retain all the BSA proofs on the barrel . I plan to rechecker the grip as the original is almost totally worn off . Bolt and trigger work well and headspace is still good. Any sugestions greatly apprieciated!