| Answer | Crossword Clue |
|---|---|
| BORE | Inside diameter of a gun |
| BORE | Inside diameter, as of a gun |
| CALIBER | Diameter of a gun bore |
| CALIBER | Diameter of the bore of a gun |
| CALIBRATE | Ascertain the diameter of, as a gun bore. |
| BORE | Inside diameter |
| BORE | Inside tube diameter |
| BORE | Barrel's inside diameter |
