I took a venture into this cartridge with the PSA Rock. I had good initial enthusiasm due to its lack of recoil, then sold it after a few months due to my perception of a heavy trigger pull and less than expected precision. Real examples of performance are sparse, and loaded ammo velocities seems to be politically controlled. Other than the 20 round magazine capacity, lack of recoil (for my age arthritic boomer crowd), and ammo being half the weight of the 9mm, why bother?
