The average male hand is 7.44" (189 mm) long by 3.30" (84 mm) wide, measured as shown in this image:
Average Hand
My hands are exactly average.
That is the only one I have seen as well. Not that I have anything wrong with it, I actually think the Blackhawk looks pretty neat.
Unfortunately I don't think they make it in anything above .44 Magnum if I ever wanted something more than that.
The Blackhawk is available in .45 Colt, but
not .44 Mag. There have been some special models in .44 Mag, in the past, but I don't know of any current offerings.
The
Super Blackhawk is available in .44 Mag. The grip frame may be slightly larger, but not by much. Most of the difference between the bulk of the grip frame on the Blackhawk and Super Blackhawk, is due to the different thickness grip panels used.
My wife has small hands, but she shoots her Blackhawk without a problem (thick rosewood grip panels). She loves my GP100 with bulky Hogue grips, and she even shoots the Super Blackhawk quite well. (She hates recoil, so I don't give her heavy loads, but she can handle the revolver just fine.)