I talked to Bob Parker on the phone tonight and he was saying that the Traditonal Hunter and the Hydracon have the same point of impact, I ordered some .52 cal 530 gr. in both to see how they shoot in the knight disc Extreme,. He designed them specifically for Knight. He recommended not to go over 130 gr of powder, even more preferably around 110.I will let you know next week how they shoot. Or have any of you .52 cal shooters tried them?? I know that
530 gr is a big chunk of lead.