Wolfe is right, the grip is what holds them back.
Most midgets have trouble holding onto more than 225 lbs.
I know a midget who's squatted 700 lbs, but has not deadlifted more than 275 lbs or so.
There are some midgets that have long fingers, but they are very rare. I've yet to see one of those compete in powerlifting.
YIP
Zack