Right now...I don't know if I could rep once at 315. I did 4 when I getting back into it from a torn bicep...frankly, I'm afraid to press heavy since I snapped my humerus in late 2010. There's a big ass metal plate in there and I can just see it snapping or something.
At peak in 2000, I was flat benching my old 300lb weight set for three sets of 10.