Try Remington SubSonics First
They should function then go to another brand and see what you pistol likes. I find the P22 is not really picky though. Most Match Ammo if not all is subsonic and should also work. I would stay away from the CB's since the lighter projectiles will not generate the needed pressure. CCI Green Tags are a good choice but somewhat pricey but they do come 100 to a box so you must take that into consideration when looking at their price.
John
They should function then go to another brand and see what you pistol likes. I find the P22 is not really picky though. Most Match Ammo if not all is subsonic and should also work. I would stay away from the CB's since the lighter projectiles will not generate the needed pressure. CCI Green Tags are a good choice but somewhat pricey but they do come 100 to a box so you must take that into consideration when looking at their price.
John
