In college, playing football (real football with helmets and shit
, not that wussified crap people play with their feet
), I regularly worked out with anywhere from 240-260 lbs. My max bench press was 375. I recall barely getting it lifted. I never tried anything heavier.
With leg press I did 1700 once. I used to do reps with anywhere from 1000-1200, and during an excercise where we "popped" the leg press (tossed the weight then caught it on the way down), I used to work out with 10 reps of 1400 at the end of my set.
Squatting I did 1000 and deadlift was 700. (max)
You have to keep in mind, I worked out with weights probably 4 hours nearly everyday (5 -6 X each week) during this time.
Such is the life of a middle linebacker.
NOW...my knees are so bad I couldn't squat the bar without a couple of spotters.