Very good write up mate i,ve bought an older 77 and just can,t get on with it,kicks like a donkey,i have a few differnt guns,spring,gasram and precharged,the 77 stays in the cupboard.
Hi, Torchey.
Something's not right with your 77 if it's like that, mate. There's three things that are the most likely cause..... 1, it's been over-sprung, they really don't respond well to that, it ruins them. 2, the breach seals gone so it's loseing compression and causing the piston to slam into the end of the cylinder. 3, the piston seal's gone tits up causing the same problem as a failed breach