The elephant in the room others have had the courtesy to not mention is that without some sort of documentation John Oiln didn't have anything to do with it.

It's quite possible he did have this made for a friend as your word of mouth provenance states, but the onus of proof is on you.

We would all like to see it. Most of us would like to shoot it.

Other than that, what 'comments' can we give you?

"The price of good shotgunnery is constant practice" - Fred Kimble