Firstly Kral puncher in 25
Replaced with a Kral punches breaker synth in 22 which was lovely to shoot, when it worked. I was well pleased at first but it went off a cliff really quickly.
After that I gave up and got shut to a good friend who is an engineer. He ended up making a new valve, stem, valve housing etc.
It was a shame that it failed because I love it at first.
The puncher was a lovely rifle to handle, nice turk walnut stock and scary unsafe.