Just inherited this rifle. It is in fine shape and all original. All numbers match. Built by Manufacture d'armes de'Etat in Belgium in the 30's My problem is I just purchased ammo for it. It is 7.65 x 53 argentine. All my sources say that it is the correct caliber. No markings on rifle regarding caliber. this rifle dose not fire. Just click. No impact by firing pin. I was able to fit the round on the bolt to chamber and get it to fire but the casing is now stuck in chamber. I am at a loss, what is my issue?