Ruger grip styles.............
Ruger .44 Magnums are available in several grip designs, Blackhawk, Super Blackhawk, Super Blackhawk Hunter, and Bisley. I've come to prefer the square backed Super Blackhawk style, others complain it cracks their knuckles. I've tried the Bisley style that many others favor, and found it whacked my knuckle pretty soundly.
The new .44 Blackhack has even another style, closer to the original XR-3, which is very close to the Colt SAA. But I've found that there is not enough to hang onto with this grip, and to me, is the worst of the lot in heavy recoiling guns.
Bottom line is, try each and settle for the one that suits you best.