I saw that in the new reg book also! I have been checking the Commission web site for the November meeting minutes, and they aren't posted yet, but it is in the 2013 regs! My daughter is happy, she gets to hunt her first Antelope this year and wants to use the AR! I need to get busy finding a 62gr Sierra Gameking load it likes!
I think I may need to buy a new rifle, also! My .220 Swift won't shoot 60+ grain bullets at all, period, so I think a .22-250 is in order!
EDIT: P.S. - all ammo must shoot at least a 60gr projectile.