I had both the .22 cal and .25 cal SPA M16 rifles and the .25 had a Huma reg. I went the opposite way with power and had that one shooting at 50 ft lbs. Took a medium size piggy with it before I sold it. The M16, and hopefully the Pinty version, are nice rifles indeed.Enjoyed your video. I have a Spa M16 which is the same rifle. I put a Hume reg in mine set at 90 bar & tuned for 12 fpe. Tons of shots & very accurate. From the last 2 Spa made rifles I have bought (Bull Shark, Pinty Bullpup) it seems like they have improved both their regs & barrel quality control. Enjoy yours.