RE: What broadhead should I use???
I can't say this from experience with bears, but I have used it on deer. It is a N.A.P. Thunderhead. They are superior to EVERY broadhead I have used. There pro series is even better. I would go with 115 grain.
Good Luck This Season: Buck Magnet
P.S. Only Chuck Adams can sit at home and see deer so get into the woods. =;^)