In October of 2010, I bought a Service Grade SA Garand from CMP that has languished in my safe for 2 years. Yesterday I finally took it shooting with the Greek ammo from CMP and it failed to fire. I made 3 attempts and it went "click" all three times but never fired. I removed the cartridge for each attempt and then figured I should have the gun looked at. What is my best course of action here?