I have installed a Huma reg into my Benjamin Armada .22. The reg part number is 1124 from Airguns of Az. I don't know if this is the Huma p/n or not. In researching the setting of the reg, I found that there are 3 different regs with different ranges. I have not been able to find out which reg I have. I was initially looking to set the reg at 1700 psi. so I set the reg at 119 bar by the readings on the reg itself. this only produced 1100 psi on the gauge. Removed the reg, reset to 150 bar. Produced maybe 1550-1600 psi on the gauge. Another round, set to 190 bar. Produced 1600-1650 psi. Any info or help on this regulator /settings would be helpful.
The rifle feels weak and really drops off at 60 yards.
Today, I removed the reg and disassembled to inspect and see if I could change it up a little. There are six Belville washers in the stack, as follows.
2up, 2dn,2up. I changed them to 1up, 1dn,1up, 1dn, 1up, 1dn. This stack was too tall and would not allow the snap ring into the retainer groove. I changed to 1dn, 2up, 1dn, 2up. Installed in this configuration, filled to 3000 psi, reg gauge actually read about 3400 psi ???????? I am now fairly certain that this gauge, the original gauge, which always seemed to be accurate weather filling from my comp. , or from the tanks at the club, is not accurate. More regulated pressure than tank pressure is not possible. I was shooting 11.75 g domed predator no lead pellets at just over 1000 FPS with 40ish FPE. Tomorrow I will do some more testing with diff weight pellets and settings.
The rifle feels weak and really drops off at 60 yards.
Today, I removed the reg and disassembled to inspect and see if I could change it up a little. There are six Belville washers in the stack, as follows.
2up, 2dn,2up. I changed them to 1up, 1dn,1up, 1dn, 1up, 1dn. This stack was too tall and would not allow the snap ring into the retainer groove. I changed to 1dn, 2up, 1dn, 2up. Installed in this configuration, filled to 3000 psi, reg gauge actually read about 3400 psi ???????? I am now fairly certain that this gauge, the original gauge, which always seemed to be accurate weather filling from my comp. , or from the tanks at the club, is not accurate. More regulated pressure than tank pressure is not possible. I was shooting 11.75 g domed predator no lead pellets at just over 1000 FPS with 40ish FPE. Tomorrow I will do some more testing with diff weight pellets and settings.
