Another reason I acquired a 9mm is ammo is cheap. Recoil is not an issue. The 9mm is just as easy to shoot as a 22LR. I am not to keen on the 40 cal. If I am going to pay high prices for ammo I want magnum power. I would get a 10mm before a 40cal. You might consider a 9mm for a range gun and keep carrying your sig.