Pale Rider,
I have a question. I have disassembled my .25 pistol to inspect and take measurements. I have fired around 1,000 pellets. I have no damage to either the buffer or spring, but they fit fit in the striker and nylon sleeve snug. Is that normal?. The real question is the valve, which is made up of the center pin and the outer sleeve/bushing. My question is mine do not separate. They slide for about 1.5 mm and then jam. I appreciate the polished finish on these parts is critical to prevent leaks, but I think they should separate and slide freely and they do not. I have clamped the outer bushing in a rubber jawed vice and tapped the back of the valve pin with a brass pin and light hammer. The valve pin travels 1.5 mm and then no more. I am reluctant to use more force for fear of damage. I occasionally get doubles and I have adjusted the secondary sear screw correctly. What do you think? As a note, I fill to 300 bar and the power is set to 700 FPS with a 25.4 gr JSB pellet, a long way from max.