Berserker, you may want to learn a bit about sub sonic ammo and using suppressors before you shoot your mouth off. He was asking about sub sonic ammo along with a suppressor. Bad idea for hunting. As far as hearing protection goes, a suppressor with super sonic ammo falls in short of doing hearing damage. It's the gasses from firing that are making the largest noise from a rifle. They are hitting super sonic at a much greater volume so they are louder than the bullet reaching super sonic and that is what a suppressor muffles. Using sub sonic ammo is in no way needed for hunting purposes unless one is truly trying to get away with something and yes a bow or crossbow would actually be a better choice than sub sonic ammo due to the extremely low energy from sub sonic.