The Muzzy 4 flies out of my Excaliber Vixen crossbow like a field tip and I can group 6 shots in a 2" circle at 20 yards. They will take down anything I hit them with, using my crossbow. I can't get them to fly very well from the compound or recurve, so I don't use them. They seem to plane more than the 2 and 3 blades I use on the vertical bows. A lot of crossbow hunters use them with good results!