I got the Sheridan C-series back together after a fair amount of work and chronographed it.

With the restricted valve body still being used I wanted to see what it could reach with just cleaning polishing and new seals. It came up a couple of ft-lbs to 9.2 ft-lb and may increase a bit more with adjusting the new piston,which is currently at 1mm longer than standard. At some point I think I will want another 2 ftlbs so it will require another valve body without bleed holes to reach it.



Removed burs around the port holes and polished the valve stem neck and aligned one of the ports up correctly with the receiver port.



Cleaned the cylinder and polishing the valve head with a 12bore cleaning rod.



The valve seats had a couple of gouges and had to be smoothed out with fine grit sand paper on a crossbow bolt.