I did some more velocity work today. The load was 7.2 grains of Power Pistol pushing a 90 grain Hornady XTP. Each string I shot consisted of 5 shots. Chronograph was set 10 yards from end of shooting table.
I first shot a string with the Ruger SR9 to give me a comparison base; average velocity was 1390fps
Next up was my PC 9 with an XL Linear Compensator on it; average velocity was 1790fps
Next was the PC 9 without the Compensator on it; average velocity was 1784fps
Then, just for the heck of it, I removed the compensated barrel from my carbine and replaced it with the uncompensated barrel of my son's carbine. There was no change in Point of Impact.
All my testing seems to indicate that this little rifle is a very solid platform!!