I've shot .20 caliber rifle and some manner of shotgun in my life, both when I was 10. The shotty was fun and I managed to land every shot on the rusty gas can I was pointing it at, but I literally could not hit the broad side of a disused camper trailer in 4 or 5 shots with the rifle. And really, I can't believe they let me use either. When they gave it to me I promptly pointed it at the ass of one of the older boys who was camping with us, then swung it around at the adults (not aiming, just holding without much heed to where the barrel was pointed) when I was reprimanded. And then I stuck the open end in the dirt while I was getting more shells. But, that's what they get for not telling me anything before handing me a dangerous weapon!
I'd like to think I'm a decent shot with a hand gun because of my success with House of the Dead and Time Crisis, but I can almost guarantee I quail at the real McCoy.