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I have this little Taurus PT22 that is a joy to shoot.
The problem is that two or three rounds from every magazine(8shots) require two hammer strikes(DAO) before they fire.
It seems to do better with Aguila ammunition than CCI.
Just for grins last night I pulled the bullets and powder from a CCI MiniMag, a CCI Quiet, a Remington Golden, and an Aguila regular.
The tilt up barrel made the test easy.
All primers fired, but the Aguila’s report was TWICE as loud as the others.
Empirical and trivial, but it surprised me.
I’m going to adjust the firing pin protrusion by a tiny bit, trimming the FP spring made no difference.
I wonder if this is common for these pistols.