What crossbow? I shoot a killer instinct lethal 405. I shot muzzy 100 grain fixed blades out of it last season and killed 2 with them. This season I got tired of trying to sight it in with them because it blows through every target I have so I switched to a swhacker 100 grain. Ive shot muzzy for 20+ years so it was hard for me to change. I'm never going back. I shot my buck with one and my son shot his buck with one. Pretty amazing results. Mine went in through a rib and cut through 2 opposing side ribs on a pass through. My son's went vertically through a rib on the exit side on a pass through. Neither deer went more than 40 yards.