evening all bought a 2240 two weeks ago put a gmac steel breech on and a longer prob with a power adjuster on back it was shooting great from new, but since I put these bits on the power keeps going up and down 3flb to 6/7 fab and down again I think I have put it back together right could do with some advice :(
Check that the rear breech screw is not poking through the end cap and touching the hammer spring. Metal breeches and plastic breeches generally require a different length screw. And there is not a lot of material for the screw.
Edit - poorly worded - meant not much leeway for the length of the screw.
evening Craig, thats for info" will check that tomorrow let you know how I get on regards "ken :-*
all ok now thanks 5.6 ftlb about 38 good shoots can go higher but accuracy go"s off