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Posted On: 10/29/2023
By: Ray Borrego
A: Thanks for reaching out Ray! The 22 LR cartridge is rimfire by design; "centerfire 22 LR" does not and cannot exist. All 22 LR firearms therefore exclusively fire rimfire ammo.
Posted On: 2/23/2023
By: Todd
A: Thanks for reaching out Todd! This ammo's designed for self-defense with a semi-auto pistol, so you should be safe there. I would reasonably expect this ammo to reliably cycle a 10/22 as well. Its muzzle velocity out of a 24" barrel is 1,650 fps, which suggests that the round's chamber pressure is sufficient to cycle any semi-automatic rifle or carbine. That said, I have not personally tested this ammo in a 10/22, which is why I'm going to ask Federal for their opinion on the matter. I'll update you as soon as I hear back from them.
UPDATE: Federal says this ammo should work in a 10/22.