I had a Merkel 47E.

New.

What I found was that if you were not careful, and the barrel selector ended up in the middle... it would double every time.

It's the nature of the beast.

The barrel selector is in a piss poor place, and the detent isn't well enough engineered to prevent the center position.

GSI offered to fix it, but I didn't really like the gun that much anyway. It found a new owner.

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