Mr Tracker
I spent $250 on ammo to get my Seecamp 32 to run right (Finnochi, Win, Silvertips, Magsafe, Hornady) and they were all problematic. From what I have read all the Micros are in the same boat. A standard ammo, that is necked down, with less recoil, would solve a lot of problems.
All Rohrbaugh needs to do is buy a 22 TCM reamer, and shoot a few rounds, one at a time. As far as flash, and noise, any 9mm shot in a car is going to wake you up.
But, my post is simply a question