If you are an adult, you can buy ammo and have shipped to you. MOST 22 autos will not cycle with subsonics, but bolts and levers work oK. Most common brands- Aguilla Colibri, and CCI CB Longs. Personally prefer the CCI- looks like a 22 LR round, but has very light propellant charge. Bullet travels slower than speed of sound, VERY quiet from a rifle. Drop is much greater than higher velocity ammo, and energy is much less- but quite accurate, adequate for pest control- and a lot cheaper and a LOT less hassle than suppressor.