Muzzy 100 grain MX-3's...They easily blasted through and cut up 3 good deer this year for me. I have used Muzzy's the past 4 years I believe...only problem I have with my Muzzy heads on my bow is that after 30 yards, I get a pretty good reduction in accuracy. Maybe it is something with my bow or set-up, or maybe it is just the limit of the broadhead on my bow.