I'm looking to buy a pistol that I can use in steel matches. I'm leaning towards a .40 because I'm thinking that I would also be able to shoot IPSC with it in limited class. I don't shoot IPSC now and I may or may not ever do it, but at least I would be equipped if I decided to. The other train of thought is if I buy a 9MM Limited gun, like a double stack STI, that would open up an oppourtunity to convince the wife I needed another pistol at a later time. If I were to decide on a gun that I was just going to use for steel, what is the caliber of choice among most shooters?