The Chassepot, Gras, 71, are look alikes - the mechanics are somewhat different,
but you can certainly see the lineage.
My Gras is a 12 gau with a 30+" barrel so either leave it alone / replace the
barrel completely.
Thank you Lancaster for the wealth of information it is & will be helpful, obviously
not just to me. The safety is interesting and not beyond a handy man to fabricate.
I have no doubt there are some fine "customs" on the action out there, I'd be
surprised if Mr. Dorleac doesn't have one tucked away.
--- John