they also had the agent, along the same idea. They do have that extra round atvantage over a smith. I have never fired +p, but it is rated for it in limited quanities. The only issue is buying a used one and how much it had been shot like that before you got your hands on it. Fairly easy to carry, but i don't think the original idea was for a range gun. There were a couple of versions of them depending on when they were made.
lots of infor here:
http://en.wikipedia.org/wiki/Colt_Cobra
