What does accuracy have to do with it? Odds are any FAM is going to be less than 5 feet, and most always less than 10 feet from what he is shooting at. This is not a long range precision shooting situation. A FAM in row 65 trying to shoot a short barrel hand gun between pax and hit a bad guy standing at the cockpit door, on a bouncing plane, has little chance of hitting the target. Jumbos are over 100 feet long inside.