Lgu 22 piston

[Shed tuner]

Hi again done that it goes down sames as nipping the skirt or sizing anyway it's OK now as it is as I don't want to put more preload in as the idea was to make it cock easier like the tx but there's a lot of differences between them and thats why I wanted to use a tx spring anyway thanks

did you try it with the JSBs, not the superdomes...

[Alan's]

Hi yes i did jsd i must admit that are a loose fit in the breach I've also done it with cheap BSA 7.56 peliits the tight fit can go20 to 30 ft faster than the looser fit one so it must be the loose fit of the jsb in the breach

[NickG]

Or the lost volume in the huge chamfer, that's normally what they have as a lead in.