This is carl, he trains and is a part on the norwegian strength lifting team, and he recently did 445kg 981lbs and hes suppose to be natural, he gets drug tested all the time so kinda hard to say hes on something, but wth, 455kg squat...
Guys, you have to realize the difference in mentality in different countries. I am norwegian and have trained with a couple of young guys on the national team for the sport where they lift deads, squats and benchpress (don't know the english name for it) and they are clean. They get tested all the time. Carl Yngvar who broke the world record has been insanely strong his whole life. He started lifting squats and front squats at his families squat rack at home at a very early age.
When you accept a lot of fat on the body there is a lot of potential for strength. It is completely different for BB's who are low in bodyfat and strongmen who do not get tested.
Dunno if he's natty or not, but I know I squatted WAY more at 275 and fat as fuck, no AAS, than I ever have since getting lean and using AAS. Nowadays, I couldn't touch my old fat-guy PRs unless I throw in as much food as possible and don't worry about how I look doin it.