In a rural setting. You have a five round autoloading full length 20 guage shotgun as well as a 10 rd sks side by side on your gun rack and you are deciding which to choose.
Which gun and what type of ammo?
Which gun and what type of ammo?
I can't begin to imagine why buckshot would penetrate in that test. All I can say is that it was probably a fluke and on any normal day the round should have penetrated much more than that. It is possible that the slug tumbled and hit sideways causing it to stop dead in its tracks. There are a number of factors that could cause this. Not that there's anything wrong with buck shot that would work great too.
Once again, the 12 Gauge Slug amazes us. It was devastating! Penetration was 5 jugs or almost 30 inches. That is equivalent to almost 15 inches of penetration of flesh.