I bought myself a 50 cal and took it to my uncles to have him show me how to use it. that weekend it worked great.it was really fun. yesterday i went out shooting and it would not fire even once. i wasted about 7 caps trying to get it to fire. now i have a load in the barrel and the ball extractor will not remove the ball. is there anything else i can do to unload the gun and take it to my uncles when he returns in a week? thanks for your help.