Still quiet here guys... I personally have been working a lot buuut ive also been designing and getting materials for 2 whole new air rifles... The first is still based off of my .50 cal barrel and in design its much like one of Joe Bontragers first home builds it will still be muzzle loaded but im designing a stainless steel valve that will allow for a 3,000 psi fill and I also found some tubing online that will have the strength and wear resistance to work at such pressures for a long period of time... I plan on purchasing a lathe/mill hopefully by Christmas but in the mean time ive been research supplies and strength of materials... Ill post a sketch asap for yah