I like the gun but it doesn't shoot straight. I have tried BBs from light to heavy and it never shoots in the same place twice. I even had it in a gun vise to see if it was me moving. It shoots about as accurate as a $25 spring gun. What am I doing wrong? It's a cool gun, a bit tedious to get the bbs stacked up correctly in the magazine. If I could get it to shoot straight I'd like it a whole lot more. Comments? Suggestions? I could use some straight advice (I couldn't resist) Thanks in advance.