Jannsen Freres made the interchangable...Pieper supplied the actions and barrels for some Jannsens...yours is one of them, 95%+ Piepers are considered JABC's...but yours looks like it still has a lot of life left in it, I would get some of those Westley Richards black powder loads if you're gonna put it on the road...(if the barrels aren't pitted)... IT IS NOT A NITRO PROOFED GUN...but all in all, your safest bet is to not shoot it, find something else to shoot