i shot a small doe the first day of early season, at a little over 20 yards with one, my bow is shooting about 63-64 pounds,and i was a little far forward on the shot, it smashed through the left shoulder blade and plowed through the right, just piercing the hide on the exit side. Went about 70 yards and was dead when i walked up on it a few minutes later. The blades are still in tack, and with a quick sharpen it was back in my quiver.