Hi everyone

I've been trying to sort a webley rebel for ages now and with much kind information and assistance for the good forum it's nearly there. But I have an odd issue with it now, so I've found out that too bigger valve to barrel seal causes the gun to blow air down the barrel whilst pumping it up.

But now I've got that sorted, so out of the stock it pumps and fires great, but once in the rear stock it fires or just let's air down the barrel again 😭

If I don't tighten the stock screw up and it's kinda loose it shoots ok but if tightened it fails.

I've not much idea why, has anyone any inspirational fix for this, as it's so close now.

Many thanks for any thoughts on what's causing it.

Atb