[[File:Merkel Drilling 961L.jpg|thumb|right|Merkel Drilling 961L]]
* The term ''drilling'' (German for "triplet", pronounced ''DRY-ling'' or ''DRAY-ling''), a general term to refer to triple-barreled combination guns
* One of the Merkel triple-barrel combination long guns, all of which are, as the name suggests, ''drilling'' rifles:
** The [[Merkel Drilling 96KS]], a triple-barrel combination long gun with 2 caliber modes: [[20 gauge]] (2 barrels) and [[5.56x45mm NATO]].