My Keltec KS7 before & after!

I don't know who P&S is, but there is plenty of evidence available online that shows that mini slugs and buckshot are suitable for close range self defense. I wouldn't use birdshot for SD, mini shell or otherwise.

Here are two Paul Harrell videos where he tests Aguila Minishells. Note the results of the meat target.  Seems to be a lot more than just blood.





I use mini shells in my KS7 because it sucks to shoot with anything else.  Same for my Shockwave.  Both will get the job done with minis.