N/A Regulating the Barra1100z 22cal Rifle

Gotta drill out the transfer port and gauge block. Air doesn't flow well at all through this gun, hence why it is only a 40 yard gun. if you put a regulator in it without doing the drilling, the pellets will just about fall out of the muzzle. Had my hammer spring at 7 turns in to get accuracy at 50 yards with about 850 FPS. I'd fill it to 2900 psi and after 20 shots that left me with 2000 psi. My chrono stopped working (UGH!) right after the drilling but I am definitely getting more FPS with 6 turns in on the hammer spring. I suspect the pellets are moving too fast. Still getting 20 shots between 2900 and 2000 psi.