So far I have found making an o-ring head and skirt-less piston has given me the best results so far. No need to short stroke but I will be trying that next to see what difference it makes. All I can imagine it doing is causing more recoil
Tx200 mk2 chrome + vortex golden eagle
GML400 01 + EB 10x
The old faithful tx200 mk1 project
Ripley ar4 currently looking for 1990s field target scope for this!
Tx200 mk3 EB 10x
S510 currently for sale!