This is painful to watch:
I find "torture" tests like this to be pointless. I appreciate stress testing firearms, running them hard through extreme use. Perhaps seeing them dropped in dirt, mud, water, shaken off, then run again. You know...stuff that >may< actually happen in the course of a firearms lifespan. Not sure if "dropping them in mud, then put in a freezer, then cleaned off with a hatchet" is common. Nor is "shooting with peanut butter/twinkies/syrup/whatever jamed into the receiver.
That was pretty thick mud in which he froze them. He should try some thinner mud so that the slop can seep down through the cracks and crevasses into the actions of the pistols. He even plugged the ends of the barrels. I was not impressed.
Plugging the barrel I have no problem with because barrel with stuff inside can behave as a barrel with a squib. I think we want to see if pistol stops working, not if it blows up.
This is painful to watch: