i live in a city of 1.5m and have seen all the guys over a period of about 20 years and alot of the really "big dudes"- about nationals standard, bench 140-160kg (320-360lbs) for a few reps.
BUT, ive seen at least 2 guys who bench like mofos. one weighed about 190lbs and didnt carry much muscle but i regularly saw him rep at 350lb+ and finish with slow, controlled sets of 12 reps using 120lbers.
so they are out there- and not really that uncommon.
but give this kid props- great bench.