Yeah, the leg-press exercise isn't an accurate guage of strength. I'm a powerlifter and squat close to 700, and when I perform the movement, I use no more than 6 or 700 pounds, tops. I bring my knees to a point where they sit beside my delts. Real deep reps. I've witnessed many folks "press" much, much more than I do, and they'd be lucky to ascend with 185 pounds draped across their backs.
One doofus at my old gym (a middle-aged fool with no measureable muscle) would load the damn machine with well over a tonne and perform two-inch reps, and then get a look on his face like he was The Man. Right. I told him once that he'd derive more benfit with less resistance and more range of motion and he smirked as if he "knew better".
In the three years I frequented that establishment this dude grew not an ounce of muscle weight and never could bench press more than 185 OUT OF THE RACK. Pathetic gimp.