Alright first of all, i purchased this gun off of airsoftmegastore about 7 months ago. And now my gun is jamming every 2 or three bbs, even on semi. Im using a 8.4 volt battery and if i put a 9.6 in, the gun jams almost every shot. I have been cleaning the guns barrel regularly with silocone. I am using goldenball bbs.Got any advise?