I like my sound to be sharp and short. As little bass as possible, metallic "PAK"s. Not the usual "BOWWHHhhh", I hate the echo in the end of most sounds I've heard.
If anyone has seen a russian war movie called "9th company" might remember the scene where they are still in training and they are blasting off in the range. The sound of Dragunov when the guy shoots is perfect! Makes me drool everytime I hear it.
You can watch the range scene from here, the sniper shot is at 02:19
http://uk.youtube.com/watch?v=Nl7cVRCmWSU
It sounds alot better on the DVD, the video compression obviously has lowered the sound quality in this one.