I'd say I'm a bit more drawn towards a 10 mm than I would be a .40. I'd have to shoot one to see what I think of it. I missed an opportunity (20 years ago) to buy a .45 WinMag. I loved shooting one of those when I lived up in the Arctic. It was on a double-stack frame too, so it had some serious girth on the grip.That's what I thought the first time I shot a friends 10 mm. We were plinking at a 10" steel plate hanging by a chain. The second shot on the steel and it broke the chain. I was hooked right then. I bought a .40 SW about 6 months ago and still haven't shot it. I bought it because it was a New Orleans PD turn-in with their shield. I grew up there and bought it just for grins.