Quote Originally Posted by Radioman View Post
What are the calibers?
They could be almost anything. the one pictured sports a 20 ga shot gun on the bottom center middle left and right have 8 mm and the top center looks to be along the lines of a .22 range center fire possibly a .22 magnum In general a multi bore gun might have 1 or 2 smooth bore and possibly a pair of rifled barrels or it may be called a drilling having only 3 barrels such as a double barrel 12 ga shot gun with a .22 rim fire on top.
I've never seen one but I have heard of a gun that was a mated pair of 10/22s side by side with a single shot .410 top center. Simply pop in a pair of 100 round mini drums and a .410 slug and be far more deadly than any fully automatic at close range