In most cases, the seal lips are packed with grease and the seal face is scorched from ignition of the grease... and this is on new or relatively new guns! Much of it is just sloppy "don't care-just slap it together" assembly procedures as it would take the factory very little effort to avoid all this dieseling. But- as you say, it would also lead to lower numbers on the chrony if all that lube weren't in front of the piston. I've also seen chambers that had so much grease in them that the gun shot slow.. this is because the environment is too 'fuel rich' (what Tim McMurray calls a wet cylinder..an apt description). This like flooding your car engine with too much gas and it fails to 'fire up". RB
http://www.airgunshow.net/Bestunes.htm
cscbestunes@aol.com
