reggie bush couldnt squat or deadlift 450, let alone bench. what the players do is something for like 3 or 6 times and then the strength coaches grossly overexagerate what they could do for a max.
like if you can do 295 for 3, then the coaches would say you can do 365. surrreee.
i doubt larry allen could bench 635. how many pro bbers and pwlers, who do nothing but lift can do that raw, and some old football player (a great one, who will be a 1st ballot hall of famer) can do that? doubt it.