There's lots of strong mofos like this. Growing up a friend of mine in highschool. Complete country boy. Tall big dude. His wrists were fucking thick. Big strong joints. Can lift anything and never worked out. Throw him in a gym and he'd be doing the same thing.
I hate those fuckers. When I started working out it was just me and a buddy of mine. We were around 15-16. A new guy joined us two years later, not particularly big, but fucking solid. Never set foot in a gym before. At the time we were repping around 220 on the bench. This guy, shit form and all, threw 220 up like it was nothing. A few chest workouts later, he was approaching 300. He quit a few months later but I wouldn't put it past that fucker to be repping 440 or even top at 500 within a year if he comes back to the gym. Even after a 12 year lay off. Some guys are just built for insane strength.