Hi. First time posting really need help. I purchased a p14 Eddystone rifle. Markings are 1916 ERA. .303 with a X stamped over it. To test dropped a .303 round in the chamber and it went half way down the barrel. I took it to a blacksmith and had a cast made, unfortunally he can't tell what type of round it would take. I pick up the rifle tommorrow and will post the cast info. Definately said it wasn't a h&r 301, .303 or a .308. Says it looks close to a 7.65 argentine, but doesn't think the round would be long enough. Not sure of what the common reboring could be for P14's. By the way it was Sportized with scope mounts. Any suggestions would be great.