Crossword clues for the word: SMOOTHBORE The word SMOOTHBORE has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for SMOOTHBORE Showing 1 to 6 of 6 results Clue(s) "Not rifled, as a firearm" Feature of a shotgun barrel Feature of an unrifled firearm Kind of firearm. Not rifled Unrifled arm