Originally Posted by
Benelli B76
Jon, if you still have the nylon piston head they are sometimes too tight a fit in the chamber causing power to drop. Nylon can absorb moisture and swell up so making the piston head bigger than originally manufactured. Skim down on lathe to make a proper fit in compression chamber. I have had pistols completely jammed up because of this problem.
Baz
Hi Baz, for sure - mine has been skimmed
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.