I have had my CHL for years and carried many firearms and the best I have found for conceal is the 380, easy to conceal and produce if needed. You can find many rounds that have great stopping power but keep one thing in mind, if you are involved in a situation where deadly force could be needed you will probably only have seconds to react and be within a few feet of the aggressor so a small framed, smooth sided pistol gives you a great advantage and a 380 at that range is very accurate and has little recoil so recovery between shots is not an issue and it has good knock down power with the right load. JMHO