I always thought that leather piston seals were at their best if slightly oil damp
so as to give a slight burn and use the dieseling principle albeit ''slightly'' not the bang and wallop that
a badly lubed gun will produce.
As I type my mind went back to the ''Triflon days'' ...heck they really did think feeding the combustion chamber = happy days.
HW 77K .22,Gammo Hornet .22 BSA 3-9 x 50 Night light ,HW 40 .177,Gamo Maxxim Elite .22 multi shot, Beeman P17 .177 red dot sight ,SMK CP2 co2 with Hawk 3-9 x 50.Slingshots PPMG+TTF PPMG mk 2 ott PPMG ott Original custom made solid Bronze, Number 15 of 20