9mm
Like the difference between a Ford Taurus and a BMW 5 series, this Sig is, by far, the finest handgun I've ever owned.
Typically, it shoots much better than I do.
Put about 300 rounds through it today, double and single action.
(Pardon the LaserLyte laser. It's off our house gun, and I just put it on for spits and giggles.)
The good:
Ergonomics (added a Pachmayr slip-on grip...more about that later) are excellent. Fit my hand like a glove. Wrist torque wasn't bad at all. Slide axis was fine for my purposes (home and self defense)
Accuracy:
See pics. I'm looking forward to shooting this thing 50yds outdoors soon. Not a match gun, but capable of double action heart and head shots out to 15 yds with little practice. I'm no marksman, but this 2022 will quickly build my competence and confidence over time.
The Bad:
Not sure if I'm gonna stay with a gun with mag release, slide release and de-cocker controls. Might eventually look for another Sig with fewer knobs and levers for self defense shooting. Time will tell on this.
VERY happy with my purchase so far!
Old phart with bad eyesight and a good handgun: BEWARE





My carry snubs and the new kid on the block:

Got a long way to go before I can group accurately, but the gun itself is a confidence builder!