jmd205,
Just looked at my handloading notes, and the primer in the 286-grain 93x62 Big Game load is indeed the CCI 200--which is a relief, thanks to confirming my memory. That load averages well under an inch in my CZ 550 for 3-shot groups at 100, but as noted above, have had magnum primers make a major difference in accuracy in many other cartridges with Big Game.
