Can't speak to Ohio's regulations, but the federal AFT process is just long, not terribly difficult. You set up a trust for $100 to $200 from any number of web sources. Next buy a suppressor and submit the paperwork to the AFT. The store should help with this and will hold the suppressor until the paperwork comes through. I bought mine via the Silencer Shop and they handled all the paperwork for a $50 fee. Tax stamps for each suppressor cost $200. Now you wait for 4 to 9 months. When the paperwork comes through you can pick up the new toy. As far as 22 and 223. A 22 suppressor will handles any 22LR, or a short. You typically can't fire a 223 through a 22 can because the pressure is too high. You need a 223 suppressor. You can fire a 22LR through a 233 can but it will not be as quite. I have a 22 upper and recently tried an Element 2 can on it. It did help, but was not near as quite as a pistol. Rounds go supersonic from an AR type rifle and I think noise escapes from action. You need high velocity ammo to cycle the action. On a 22 rifle like a 10/22 and using regular 22LR ammo (not high velocity) it is very quite. Also remember the noise level depends on what the bullet hits. For example if I shoot into a steel bullet trap, the gun is quite, but there is a clang when it hits the trap. Suppressors are a lot of fun and worth the wait.