My DU10 is shooting a bit erratically. Loaded one pellet at a time it ejects the pellet on the fist pull of the trigger 90% of the time. Loaded with 5 pellets the first pull never shoots a pellet but the next 5 cycles work well. I seem to be the same with pointed or wad cutter pellets. The pistol is 10 years old little used for the last 8 and apart from a little oil on the sliding bolt no servicing or maintenance.
I would appreciate any thoughts on this or alternatively is there anybody in the Tunbridge Wells / Sevenoaks / Bromley area who is good at fettling these.
All the best
Richard