A golf club head (42) having a standard deviation of coefficient of
restitution of less than 0.226 is disclosed herein. The golf club head
(42) also preferably has a delta of the coefficient of restitution
between a geometric face center of the face (72) and a location (806) 0.5
inch sole-ward from the face center that is less than 0.065. The golf
club head (42) preferably has a volume ranging from 420 cubic centimeters
to 470 cubic centimeters. The golf club head (42) preferably has a moment
of inertia about the Izz axis through the center of gravity of the golf
club head greater than 4000 grams-centimeters squared, and a moment of
inertia about the Ixx axis through the center of gravity of the golf club
head greater than 3000 grams-centimeters squared.