Uses standard 44 mag. ammo. Cost of quality hunting ammo is about $2.00-$2.50/round. Plinker stuff about half that. In my opinion, max range is about 75-100 yards. Typical ballistics: 3" high at 50 yards = about 0 at 100. Only have experience with one of these. It was not an accurate rifle for whatever reason. About 4 MOA rifle.