I have two libertys, wood stock and synthetic. The wood I have shimmed the hammer and turned up the reg. The syn is pure stock. Today I planned to heat up the syn and thought I would run a string for a base line. Started at 3200 then to 2,900 to 2,800 to 2,500 to 2,200 to 2,000 ended at 1,800.Going to leave this one stock for plinking and back yard vermin.PS took one shot before at a target and one shot after and got one large hole. I know not pic so it did not happen but I know it happened and had no plans before I shot this string to post. Was at 25yds.
Quote from: Robert Feddeler on September 28, 2019, 09:42:30 PMWell, so much for the delrin poppet!! lol I went to do a shot string to see if I could get more shots per fill. Had everything setup and went to take the first shot and nothing? WTH??? I had filled it to 3800 psi so thought well maybe I had enough reg creep to lock the valve up. Nope! Had a heck of a time getting the pressure out of the plenum area.Looks like the stem was driven through the end, and Delrin slid down, and why the plenum didn't leak down. Peek should be allot stronger, for high reg set-points and/or using allot more energy to hit it. I guess it is good to keep the C-clip on, for our Delrin converted poppets.
Well, so much for the delrin poppet!! lol I went to do a shot string to see if I could get more shots per fill. Had everything setup and went to take the first shot and nothing? WTH??? I had filled it to 3800 psi so thought well maybe I had enough reg creep to lock the valve up. Nope! Had a heck of a time getting the pressure out of the plenum area.
Silent squirrel, the reason I switched to the hades 15.9 is they seem to dump more energy it the rats or tree rats that I’m shooting. Less through and through when I switch to low power. ( about 750 FPS and 20 FPE and still very accurate at 25yds) Being a backyard situation I try to avoid a pellet going through a squirrel and continue on to who knows where. 20 FPE is way more than I need but like to make sure they expire on the spot. Head shot and DOA when the hit the ground with very little pass through if any. I shoot the 18s out of my other liberty when I’m out in the field and love them.
Anybody know what the screw size is for the front sight? I installed the barrel band from a freedom on my Aspen. When I removed the front sight on my Liberty I thought I had put the screw in with the sight but no joy.Just did a little tuning on my Liberty with the ported stock valve and the reg turned up 1/8 of a turn. Ended up with 956fps with a cuda 21.14 pellet which is 42.9 fpe. It's not using all that much psi per shot either.
Don't know yet but thinking I'm going to have to back off the HS adj a little.
I didn't do a clearing shot after pressurizing the rifle which Liberties are know to have the pressure creep in the reg be 400 -500 psi higher than the set point.
You're right I shouldn't have to do a clearing shot but that's the nature of this regulator. When you fill the rifle the regulated pressure rises 400 to 500 psi. Heck, just letting it sit for a half of an hour and the regulated pressure will raise. Billy Rohm found that out when he was developing a larger plenum. https://www.gatewaytoairguns.org/GTA/index.php?topic=156494.40 reply #52.