Either way I own the 2.5....funnest gun I own I think. Blast to shoot though 45LC out of it. The shotgun shells is tons o fun too! Also note you can package the 410 slugs which wont do as much damage penatration wise but arguably it meats the lethal range of 7 inches.
I say all this for defense purposes. End of day scenario....someone tries to do something to you while your in your car a face full of 40 birdshot rounds will have them thinking twice.
I dont know why, I have no use for it....but I still want one. I want to have a smith install their "cushion pushin'" grips on them though, instead of those "ribber" grips. They feel better in my hands.