BB57 -
A lot of long fancy words for a simple shooter there BB57.

In my 65 years on planet Earth I have had to draw my weapon 4 times to stop a few aggressors. No one got shot, but it stopped them cold from any other action they had in mind. One was a big black bear, an angry black bear, we both lived.

Two time that I was unarmed I had a double barrel shotgun held to me head (Watts CA) and a Uzi pressed to my forehead (in Brussels).

All your stats sound correct but for me I'll stick with my plan... big bullets and lots of follow up.