Quote Originally Posted by Mach 1.5 View Post
Friction is a wasteful by product of metal to metal contact. Instead of large expanses of piston, sliding against the inside walls of the rifle's chamber, actions run on nylatron etc bearings - in fact there's no metal to metal contact at all. Venom and Airmasters was doing this method back in the 80's. No marketing gimmick as owners of their fine rifles will tell you and the fact AA and Walther copied it for their production rifles. Mach 1.5
Common sense says that any surface to surface contact that reduces friction is going to improve piston efficiency, provided the air seal is not compromised. Which is why for more than 200 years air guns based on the spring piston have used oiled leather seals, thereby avoiding metal to metal contact. Synthetic seals are just a more recent variation on this. Modifying a piston to have minimal friction has been a given for many, many years, so why does a manufacturer have to introduce a new term like "gliding" , as though it is some new hi-tec approach that others have not considered? Smoke and mirrors to push sales, IMO.