If you hold two rifles side to side, do you have a double rifle? Do they both have to point the same direction?

Even some double rifles don't point in the same direction.

Ever shoot a 9,3X74R Sabatti?

It works for me! My Bubba'd 'double barreled single shot'.
Two 450 Nitro Express's and some duct tape work quite well.

AkMike1,

That works a LOT better with the special McMillan wood-grain duct tape.

...and fill the gaps between with Bondo...

Like that ?

That looks like turret 3 from the Iowa after a clean up...