The barrel length on these hand guns are 1.875". This makes accurate shooting more difficult especially in longer range situations. For instance if you were in that theater where that gunman started shooting and were sitting in the middle to back sections. What do you believe your percentage would be for getting round in the targets chest? Taking into consideration the adrenalin that would be released from the realization of the situation you are in.
The reason I am asking is that I am seriously thinking about getting a S&W 642.