I shoot a .40 just as well as a 9mm, but the price of ammo is the only concern of mine. If .40 was the same price as 9mm I would be very happy. The G22 is my only gun at the moment, and I kinda miss my G17. I found someone willing to trade his like new G17 for my like new G22. I will use it mostly for the range, and keep it around the bed at night in case someone breaks in. I don't wanna start a caliber war like all the other ones on gun forums, but I wanna make sure I'm making the right decision. Will a nice hollow point 9mm be as effective as a .40 hollow point? I am a very good shot, so I will hit what I aim at. I just wanna have the best rounds I can have. Everyone knows .40 is more expensive, but it seems like either you're a 9mm or .40 guy, but rarely both. Is trading a G22 for a G17 something you would do?