I'm currently taking in about 300 grams. This amount is just shy of 1.5 gm/lb bodyweight (220). I've never measured my body fat accurately enough to get my PRO intake based on lean body mass. But I suppose that's the optimal method of calculating PRO intake.
I used to take in 2gm/lb for a couple of years. For me, going that high gave me the shits and horrible gas as well as intestinal bloating. It also made loosing fat a bit harder. I may still approach that amount for a short while during serious training phases.
Anyways, 1.5 works for me.