hi all, i make my webley pistol breech seals from a piece of automotive rubber /neoprene pipe[not the reinforced stuff] ,whatevers handy and will grind down to size . thick walled vacuum hose is about the right size bore,i grind down the outside diameter to fit the breech on the bench grinder then cut to lenght...if when cut they are a little too long i poke a bolt up the internal bore so i can hold them to grind a little off the face.i know it sounds a bit fiddly but it only takes a few minutes to do and to be truthful when i have bought breech seals very often i have had grind them to make them fit...cheers..greasemonkey
more guns than you can shake a stick at!