Actually glad this thread outlived the OP!
I recently bought a BG 380 and Shield 45 with the recent rebates.
I have no illusions about the 380 being an ultimate defense round.
Through my decades, I have carried J, K, and N frames in various loadings.
I have also carried Colt, S&W, and Kahr Autos in various loadings.
I also have a NAA Sidewinder with Federal V-Shok ammo that travels in my pocket on many outings.

There was a phase back in the 70's and 80's when any pocket auto under a 9mm was considered too anemic for defensive carry.
I don't know what changed, but pocket 380's are market leaders these days.

I do know my BG 380 loaded with Hornady Critical Defense is less noticeable in my pocket than my Kahr CM9 loaded with Win Silvertips.

For a real eye opener, take a look at the Youtube videos of ballistic gelatin tests, with various entry barriers.

Two impressive rounds are the Hornady Critical Defense 90gr. (up to 13" penetration), and the Underwood 90gr.(up to 18" penetration) loads.

https://www.hornady.com/ammunition/h...cal-defense#!/

380 ACP +P 90 Grain Xtreme Penetrator – Underwood Ammo