I have already done that, John
http://www.airgunbbs.com/showthread....10#post2931510
The finished gun and piston was shown in Jim's Real Airgun Sport.
Unfortunately my doctor won't allow me to use any machinery that I could fall into and kill myself at present, so I couldn't offer to make Les an O ring piston head.
All the best Mick
IMO - keep original.
Founder & ex secretary of Rivington Riflemen.
www.rivington-riflemen.uk
Crumbs Mick, Take it easy mate, There's always later to play on your lathes/Millers!
My old Faircut lathe is worn out, I have a nice 1950's Myford that's nice and tight on the ways but no room to get it set up until I clear the garage somewhat!
John..
for my gunz guitarz and bonzai, see here
www.flickr.com/photos/8163995@N07/