Definition of "smooth-bored" [smooth-bored]

• Having a smooth bore; not rifled: noting the barrel of a gun or the gun itself.

The Century Dictionary (Public Domain)

• "Dougal noticed the walls were patrolled by white-armored members of the Seraph, armed with the newer, smooth-bored muskets."
• "Although Holland & Holland may be better known for its rifles, it also makes fine smooth-bored shotguns."
• "After inspecting my battery, he particularly approved of a smooth-bored double-barrel (Beattie of Regent Street) carrying six to the pound."