In my mind, the 10mm is in another category. It's great as a gun for hiking, fishing etc.in bear country or where there are other potentially dangerous animals. Probably more than needed for self defense in populated areas. But if someone likes it, why not?
With Winchester, CCI/Speer and Hornady joining Federal in the defense ammo game (selling basically what amount to warmed over .40 loads) the same auto can be a ideal bear/cat/hog gun and a very respectable self defense gun with a mag change.
