One thing nobody has mentioned about the buffalo Bore 190's is their "hard" construction. They're specially made for BB by Hawk bullet co. with an extra hard core with only 20 gr's worth of soft lead poured in on top for a soft tip. As a result, they expand VERY little even when shot through heavy bone. They do penetrate well but I seriously doubt they'd kill deer sized game as efficiently as a softer 170 gr. that will expand to much greater degree.