https://docs.google.com/spreadsheet/pub?key=0ApH3DlM1yfRAdHd3dnEwb2ZmVzJhRklLRjBoTWVjT0E&gid=0 Just some information I found. I wouldn't base the weapon just off of that many other factors. However I thought this may be good to know.
more indepth chart, with cone of fire (spread), and damage per bullet: https://docs.google.com/spreadsheet/pub?key=0ApH3DlM1yfRAdGw3Um40S2tWSVRpM0Y5ME5JSjk1Nmc&output=html