My old elk hunting partner used them last fall on an average sized cow at about 400 yards. They were started right at 2950 or so. Meat damage and bullet fragmentation were fairly heavy after smacking a front leg done on entry. A similar shot from my Mashburn at 250 on the same sized animal and two leg bones (entry and exit) with a 160 Accubonds started at 3200 was much less destructive.
I'm not saying they aren't good but they open pretty quickly. Just what I've seen out of one elk though. Very accurate bullets though.
