Never bent a Hawken hammer but most hammers have to be bent to fit.. It's likely mild steel and would bend cold. It could be heated if you wish.. I clamp them in a vise(safe jaws) by the tumbler ring or attachment end. Grab the hammer with a crescent wrench or pipe wrench and bend as needed. I like to keep the main part of the mass in line with the hammers motion, so twist the hammer to hit the nipple. Don't try bending on the gun!
