Originally Posted by
clarky
It develops mixed reviews but club shooters do not tend to like.
Along with many springer pistols ive worked on, it has a set of parameters which are problematic.
The compression ratio, and spring compression were such to overcome a very inefficient transfer port (which bends around 90 degrees to afford the compact design like the Webleys) but while the webley gets away with it at 3.5 ftlbs, the 4.5 ftlb plus 45 ignites with a constant flash over point being reached.
The compression ratio is also very bad for bounce and requuirespiston weighting to reduce secondary recoil.
You got 2 choices.....
Run the bugger dry with a tinbum kit of no lube required internals.......to prevent dieseling and deal with a slight secondary recoil nuisance...
Or shove stock steel spring guide down in the piston to kill the secondary.....
but this being steel will need lubing.....and thus dieseling..
Its a bugger.
Ive tried a raft of mix ups of various piston weight top hats and stuff but never fully conquered it for my club fellows......but eventually turfed out for tuned walther 53s, HW70 s, Gamo centers and Feinwerkbaus..