Quote Originally Posted by tinbum View Post
Lightweight, skirtless pistons are actually old technology. They always worked well, but the cost and reliability drawbacks meant they were always at a disadvantage.

The future is light to medium weight full bodied pistons.
I think you're right there, Nick.

And depending on the pressure exerted on the piston face, for many guns we're talking in the region of 170 to 200 grams?

Also, remember that many "new" ideas aren't that new at all. I can't remember the name and make of the gun now, but John Milewski featured a rifle once (1910s/20s?) where the target version sported a lightweight aluminium piston giving less power and reduced recoil.. There's very rarely anything "new" that hasn't been tried before.