I would stay away from the powerbelt bullets... I have used the powerbelt bullets (AiroTip) for several years. They penetrate well but do not expand. I shot one buck directly in the front of the chest and it almost exited out the rear... he still ran 150 yards. Ifyou want to put them down where you shoot them you need to find a bullet that is going to carry theenergy welland expand... this year I have switched to the TC Shockwaves... time will tell how they perform.