I do not like the 40 S&W for many reasons but many officers FEEL better than with the nine. They think that one millimeter is going to make a difference. I personally think officers shoot the nine a whole lot better then the 40 S&W especially female officers. I here more stories that officers can't qualify with the 40. I had a neighboring town, good size department, trying to qualify their officers with the 40 Glock 22's, it was bad. I gave their officer a Glock 17 and he flew through the course. The problem is that departments have ego's and when something new comes out more powerfull they have to get it to show other departments,look what we have. This thinking is nonsense. If they shoot better with the 9mm or the 45 why change, just to say you guys still use the nine,we have 40's whao!. My department could have gone to any caliber but why change something that works for big ego's. I have to say we use the Winchester 127+P+ and this round is excellent, so I said to myself, good round, good shot placement with ALL officer and enough ammo to get your a$$ out of there in one piece, I think I will let others deal with their ego's. I want my officer to hit and hit alot what their aiming at.