I've always preferred the Pro Hunter, they've generally shot better for me and have always performed well. Some of them are fairly tough...the 7mm 175 GK, the .308 180 the .338 lines. The HPGK are supposed to be a little harder than the regular GKs. The thread on the battle fo the 7mms had the 175 GK penetrating into dry newsprint about a half inch less than the Partition:
https://www.24hourcampfire.com/ubbt...0094/battle-of-the-7mm-175s#Post10080094
