I am issued a 9mm SW MP and forced by policy to carry it on duty. Nice gun, accurate too. But, since my Department started using them well over a decade ago, well... lets just say there is a huge focus pertaining to trainings / "tap n' rack", in order to clear jams. Limp wristing, dirty ammo, magazine issues, weather, etc. have all resulted in an ongoing plethora of jams on the range. Seeing this and even experiencing it myself with the SW, and previously issued Beretta 96 have shaken my faith in semi autos. If allowed, I would qualify with and carry my own revolver, either a .44 mag or .357. This is strictly forbidden by Administration and I want my pension, so I follow orders and train with what I am issued. Don't get me wrong, the SW MP is a nice gun, but I just don't trust it or any semi automatic as much as I would a good revolver. I have seen other top brand semi auto pistols like Kimbers, Colts, Springfields and even Glocks jam on occassion over the years. I'm not knocking S&W or the others quality control, but the very finicky nature and reliability of the semi pistol design itself, at least compared to a well built revolver. I like semi pistols, I own several good ones ... some I even love to shoot (like my Beretta M9 and Sig 220), but I don't TRUST them, not 100% anyhow. Pistols are great for small game or tin cans, but for self defense, protection of life and limb, I want a Revolver!! Off duty, and free to carry what I damn well please, I now carry one of my revolvers and a few reloads, with additional ammo in my vehicle. Aside from reliability, Revolvers offer MAGNUM power, and in .357, .41 or .44 Magnum, there are few semi auto pistol rounds that can offer the same level of raw power. Revolvers can shoot low powered wadcutters or hopped up +P power hunting rounds, with ease. A semi cannot do that and function properly without changing springs. Revolvers are simple to operate, look nicer and although they can and do indeed get jammed (1 revolver jam in my life, a backed out ejector rod decades ago. Lock tite fixed that!), I believe jams are far less likely to happen with a well maintained quality brand revolver, than with a semi auto pistol, based upon how MANY semi automatic jams I have personally observed over the course of my 5 decades on this earth. I also feel the heavy, long double action pull on a revolver is SAFER than the hair trigger of a striker fired weapon. Accidental discharges with striker fired weapons happen and quite frequently if one is careless or gets clothing stuck in the triggerguard when reholstering. Ask the LAPD or search Youtube pertaining to striker fire accidental discharges. Another consideration; close quarter combat! Suppose during a self defense situation one finds oneself on the ground or otherwise being overpowered at close range by a vicious assailant(s) trained in MMA or armed with a knife? A semi pistol, if pressed up against a solid object, will have its slide pressed back out of battery, rendering the pistol inoperable and useless, except as a club. Not so with a six shooter (or 5, 7 or 8 shooter!). Something to consider, when one choses a sidearm to defend your life or that of a family member, as many altercations that cannot be avoided begin unexpectedly at VERY close range and end up on the ground. I know... I'm not very "tactical" by not picking a plastic framed, high capacity pistol with a rail / light and I may not win any Mall Ninja awards, but I'm comfortable with my off duty choice of carry.