I've used a lot of POV cameras on guns and quite frankly, they all suck for this purpose. They are great for videoing back at the shooter, but suck for seeing the critter die. If it's over 15 yards away, it looks like a speck of dirt falling from the sky anyway. And because of the gopro's shape, its the worst for mounting on a gun. The tube shaped cameras (like a contour) are easier to mount and are more stable on a gun. Also, when the gun goes off, it looks like an earthquake just happened and sometimes you don't a clean view of the impact. IMO the best hunting situation to use a POV camera is for videoing your reaction or on your bow stabilizer if you are shooting does at close range.