Luckily a lot more than people realize!If you live in the US and plan to hunt with the rifle, I do not know of any states that allow suppressors to be used for big game hunting.
Actually lots of states allow total hunting with suppresserd weapons. Texas just passed and will be legal first week in sept. but we've always been allowed to hunt exotics suppressed. I know Oklahoma is legal and several others. Hell I just heard Oklahoma just passed the right to carry a side arm in the open in public
Luckily a lot more than people realize!
Here's an unverified list where you can hunt big game silenced: AK, AR, AZ, CO, ID, KS, KY, MD, MO, MS, ND, NE, NM, NV, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV.
http://www.gem-tech.com/store/pc/pdf/HUNTING WITH SUPPRESSORS-STATE LAW COMPILATION.pdf
Obviously read your own state regulations before you go in the field.