They fragment out to around 125-150yds, IIRC.
They are accurate to some pretty decent ranges past that, though.
I have shot a home water cooler (about 18"x36") with a 50% hit rate on a windy day with irons, Wolf ammo, and a heavy stock trigger before.
I doubt it would have done much damage if it had been a person, but they certainly would have been hit.
WIZZO