.50AE Desert Eagle
It's a ton of fun. It also has it's uses for dealing with annoying people at the range. A few months ago on a trip to the indoor range I usually frequent there was this guy about 2 lanes down from me shooting a full size S&W .357 (I'm not good enough with S&W models to tell which one but I took a peak at the ammo box on the bench).
This guys got his girlfriend and 2 buddys with him and is acting like a idiot everytime he shoots the thing. Yelling about how powerful the gun is, saying he can barely hold onto the thing everytime he pulls the trigger etc. Now normally I don't care if someone wants to make a fool of himself in public but this guy was driving me nuts. The final straw was when, after lighting off a cylinder full, he starts jumping up and down(Yes, Literally jumping up and down) and yelling to his GF that if she ever tried to shoot his gun it would rip her arm clean off.
At that point my good manners decided to go get a cup of coffee or take a smoke break or something. I loaded both of the mags I had with me and quietly shifted into the lane next to him and ran a target out. I waited till I saw him put his gun down on the bench after shooting and then fired off the first mag as fast as I safely could, swapped mags and did it again.
I hear "What the h#ll was that!" from his lane and both he and his friends pop around the divider to see what it was. After that he stopped making so many comments to go along with his shooting and I got a smile and a chuckle out of his girlfriend. I reckon she didn't take to kindly to the rip her arm off comment.