I have only shot one deer with rage 2 blade and my dad has shot one. Dad shot through 2 ribs, clean cut completely through on the entry and nicked one on the exit side and still sunk up in the dirt 6 inches. Mine I hit 1 rib on the way in, cut completely through it, one blade hit the spine, cut completely through it, cut through 1 more rib on the exit side, AND hit the oppostie side shoulder. My arrow didn't burry up in the dirt though. But I don't see how there is a penetration issue with my rage 2 blades.