I shot around 300 rounds of Winchester 9mm today through my Ruger PC9. This is the first time I shot this gun. One thing suprised me: the recoil. It was noticeably more pronounced than through my 9mm semi-autos. I expected little to no recoil, but the opposite was true. I believe the longer barrel made those Winchester rounds more potent due to velocity increase. The dirt was flying high on the berms behind the targets. I tried to sight in my Bushnell 3-9X scope, but the screws kept coming loose due to recoil (when placed on a sandbag). Nevertheless, it's comforting to know the PC9 is rated for +P+ ammunition. It's a heavy gun - making it rather uncomfortable to shoot standing for a long time (either that or I need to work out).
Still, you can tell those rounds went downrange with more authority than they would otherwise through a 4" handgun barrel. With +P hollow point ammo, I can imagine the devastation the longer barrel would make on organic targets.
I'm still waiting to get the Beretta CX4, but until then, I'll be happy shootint this Ruger. I may sell it later when the Beretta arrives, but then again, I may not!