I bought this rifle about 15 years ago from a guy that needed money and since I have quite a few rifles to hunt with and shoot on the range, I basically just put this rifle away thinking that it was a British Enfield 303 cal. like I had when I was a young boy about 50 years ago. Recently with all of the renewed controversy about firearms I decided to purchase a better supply of ammo for all of my weapons including this rifle, after purchsing 303 ammo and comparing it with the couple of rounds that came with the rifle there is a considerable difference. The rifle has no caliber markings whatsoever and the cartridge that came with it only has "17" stamped on it. I have included a picture of the rifle and the cartridges if anyone can help I would appreciate it very much. thanks in advance, Earl