del

Looks like you need to refill it at around shot 30 since it looks like you are off the regulator and notice it stringing down after that. I would also back the power adjuster down to shoot in the 850 to 888fps for better accuracy. Might get more shoots too.

I would also put some vibrators no not vibrators it's called VIBRATITE or use nail polish on the trigger adjustment screw threads and set it to your liking.

That's really incredible if that's actually 50 yards shooting that speed actually shooting any speed to be that tight at 50 yards. How did you measure the yardage might I ask?