They say in Viet Nam about 10000 rounds were expended for every enemy killed. Unless I am attacked by a mob, a hit team, or Zombies, I think Mr. 12 guage and Ms. 9 will suffice. I particularly like Hornadays rifled 12 guage fragmenting slug for Zombie work. Just remember to hit them in the head. I have no problem with citizens owning AKs or AR15 clones and using them for self defense. Use what you got Bro.
That’s about the range at which I use my .30-06 to nudge trespassers. Different strokes for different folks.
I live in a small (1440 ft2) home on a small lot, by other small places in a 55+ place. Mr. Remington 870 with buck-and-ball (.65” ball w/6 OO buck) and Mr. RIA 1911 (Tactical) will do the job.
I sold my Saiga .308 and bought more ammo.