@vex714: if you know revolvers, I also have an American arms 22 magnum that seems to have a light hammer strike. 1 out of 6 rounds actually go off.
I keep meaning to call the manufacturer but then I forget.

@Doomguy666: I actually own one. Manual says it has gold on the frame but, eh. Some folks have more issues with magnum rounds than LR rounds. It may be ammo trouble or a weak hammer spring. Luckily it's a small arm, so the it wouldn't be pricey to fix.

Doomguy666 said:
@vex714: if you know revolvers, I also have an American arms 22 magnum that seems to have a light hammer strike.

As in North American Arms?

That

is a downright teeny peestol.

@Doomguy666: Either the chambers are dirty, or are simply out of spec. What may be happening is the rims are a tiny of a fraction from being fully seated, and they simply move forward when hit by the firing pin, cushioning its blow causing a misfire.