Well I stripped and cleaned my mates hw95 and like I said previously the spring was in 4 bits and gunk everywhere .He just wanted it back with minimum outlay ! So I ordered a genuine weihrauch spring a new piston crown as his was frayed around the edges and had a split ! and a new breech seal . I am pleased to say it went back together a lot easier than I thought and have just chronoed it with jsp jumbo express 14.35 and the first 5 pellets were 604fps 606fps 600fps 600fps 598fps ,so around 11.5ftlbs which I couldn’t believe ,so I was well chuffed
Will put the scope back on tomorrow and see what the accuracy is like ,I think my mate is going to be happy .Should the power drop or rise as it beds in , or could it remain where it is ? Thanks for the advice .One happy chappie . .