I'm still on number 1 - it went back after 50 shots as it leaked. I've now put 5,000 or so pellets through it and it's behaving itself.
I've just got to get better, I can't blame the gun :-)
Weihrauch HW100KT .177
Weihrauch HW98 V-Mach .177
Weihrauch HW80K .22
Weihrauch HW77K .177
Weihrauch HW45 "Silver Star" .177
Weihrauch HW35 .177
Daystate Mk.4 Panther .177
Air Arms FTP900 .177
Glevum Target & Sports Club, Gloucester.
Parkstone Gun Club, Poole