Tuning Ataman M2R .357 - low velocity

Hi..I know this post is many years old but hoping you can shed some light on the Reg for the Ataman. My question is, which way do I turn the screw to get more power?.. in or out?. Again, I know this is an old post but hopefully you won’t mind helping me out with this question.

Thank you
Rather difficult to recall.
But generally speaking. Tightening the washer stack increases pressure.
 
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