95% of the time I now carry a 5" Government model 1911. Either Colt Gun Site Pistol or series 80 Government or Kimber Warrior or CDP. Again all 5".
I am now setting up a FN Highpower. It is even more narrow than the 1911.
I no longer carry my favorite, SIG 228. Arthritis does not allow me, an old revolver guy the ability to hit in double action. It is not a strength thing, but a distance thing.
I don't care about caliber. If I choose good ammo, and do my job in the delivery dept, Any of the calibers I choose will or will not do their job. Ain't no guarantee's in a firefight, particularly when using a handgun.
MY BUG is one of my two 642's or my 638. (all airweights in 38spl. The 638 is not rated for +P.
All the pistols normally ride in a Milt Sparks VM II for CCW. For competition most often a Comp-Tac or a Wilson Combat and rarely a non locked Black hawk.
Fred