The gauge threads are G 1/8-28 BSPP.
You probably want to switch to a lower reg pressure if you want to shoot 18g pellets. There is no reason you cannot get a good tune with 18g pellets.
The larger plenum should not cause an issue with getting a good standard deviation with light pellets at...
I run those Sekhmet gauges for testing. They are easier to see starting and ending pressure as well as a more consistent regulator set point on repeated testing. I will say the screens can be a little fragile. I have a few that are cracked. They still work fine so it is not that big of a deal...
@Solo1 I am having the same issue. It got better after I plugged the .177 pellet hole with a .177 scoring gauge to open the hole up.
I was going to try and shoot a card today but I am running out of time. All this work gets in the way of playing!
John
@BBGun you give engineers waaaaaaayyyyyyy to much credit!!!! LOL!
I think the pressure, volume of air and the velocity of the air when it hits the moderator could have something to do with it.
John
Kevin should ask his engineers to make a FT specific Frontier that will parallax down to 10 yards and have a wide gap from 10 yards to 55 yards.
I would gladly field test it for him!
John
Bill,
EBR is a great time with a bunch of competitions to try. They have Extreme Field Target and the steel scramble that are both great. They have the 50 yard bench that you're Marauder would be perfect for.
For bench the targets are smaller and you start at 75 yards. Finals are at 100+...
I would suggest lowering the regulated pressure and adjusting the hammer spring.
Degas the rifle down to around 500psi. Use a 3/16" allen key to screw the regulator adjuster in. You will feel the adjuster touch. Stop there and do not force it. Gas the rifle back up and adjust the regulator to...