Absolutely David and thank you for pioneering for us, or at least for me.Roachcreek
I took the rifle apart to diagnose and found the poppet broken. The rifle was never dry fired. I have to wonder if the material is strong enough for the higher pressure. The poppet slid right out with the valve, so the stem was not stuck in the gun like last time, so this is a completely new failure mode. It shot groups and some test shots hunting last week just fine.
Quote from: PCPhack on January 24, 2019, 07:24:52 PMYeah. I have shot it maybe 5 or 6 times up near 4500, and the rest at 4000 since getting the titanium tube. My hunting and bottled shooting tune is at 4000.I am inclined to believe that is what wrecked the poppet. Are they made of peek or delrin for the JSAR valve, looks to be delrin. Even a 1Kpsi increase is substantial honestly. I have no doubt that a LOT more can be gotten out of the factory valves as well as the JSAR valves if the poppet was peek and the intake from tube to valve was bored out a bit larger with a poppet that had it's stem thinner at the base than the end. I did my poppet in such a manner and gained about 65FPS. Just saying.
Yeah. I have shot it maybe 5 or 6 times up near 4500, and the rest at 4000 since getting the titanium tube. My hunting and bottled shooting tune is at 4000.