bbousa, no experience with the Q5 match, but lots with various P226s. Best by far accuracy wise was the P226 X-5 I used to have. I have several accurate 9MMs, but my favorites for shooting targets would be the Swiss and German SIG P210s. For the very best accuracy in target shooting, I would sure suggest something with single action capability. The Q5 is a striker fired gun isn't it?
Wow T. O'Heir, are you sure about the 9MM? I don't have a Ransom rest, so I don't know what the maximum accuracy potential of some of my 9MM pistols actually is. But I have achieved what I considered to be very good accuracy with 9MMs, shooting carefully from the bench. Others shooting 9MMs have certainly done a lot better than I. Without a doubt, that would include some of our forum members, and those AMU guys with their accurized 9MM Berettas.