It is also indicated on the ARH page that different pistons exitst for these, as he makes a spring kit for them that can be spaced up/down to compensate for the differences:Originally Posted by T 20
It looks like there were two stroke lengths Paul. :-
https://www.airgunbbs.com/showthread...33#post5981933
Wish I'd read this before I started machining.
https://www.airrifleheadquarters.com...88/1936134.htm
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