I shot them last winter and shot a hog and a javelin. Both were perfect hits I found the arrow from the javelin and the broad head was unscrewed never seen it again . On the hog, when I pulled out the arrow there was no head on the shaft, later I went through the lungs and blood clots and found the head, it had broken off behind the blades in front of the threads and the head was as dull as a butter knife !It would shave hair when it left my bow. These were the custom heads with the little arrow head silhouette cut through the blades very expensive. I went back to my WW and Razorheads when something works good for you you shoulnt change.