Just dropped her off at the gunsmiths and he is going to cast the chamber. I believe it will be a 7.62x39. as the barrel is on a 15 upper, sure not what I wanted or bought. Guy I bought it from swears its a 223,idiot...And I will bet I wont get my money back Funny thing is he said he shot it about 30 times how the [beeep] could you do that?