The v max hornadys are frangible within mere centimeters of penetration. great for blowing up varmints woodchuck and smaller. But on cyotes, they've been known to only cause flesh wounds and not penetrate far enough to cause immediate incapacitation. The FMJs CAN create very similar exposive results INTERNALLY on a cyote. So,minimizing pelt damage, the fmj is solid enough to penetrate deep, and cause a very devastating shockwave to course through the body of the cyote, but is still so light that it slows down really fast to the point of no exit or to a smaller exit because of energy loss... but not alwys of course. Exellent round for a lil bigger target (when your sure you can hit it in the right spot and are more consious of whats behind it just in case.)