If there is any difference in the field points and the Muzzy bh, I can't tell it. My opinion is to stay away from the mechanical bh's. I've tried several mechanicals with poor to great results on game. But, with theMuzzy's I've had excellent results each time. Unless I blew the shot. The Muzzy 3 and 4 blade 100 grain shoot just like the field points. And unlike mechanicals, the Muzzy holds up. I have shot a muzzy through a steel barrel and thetip was not hurt at all, and the blades weren't either. The blades were still shaving sharp!!!!!!I bet no mechanical can do that well. Good huntin, Scott Woody