滑かっ腔こう砲ほう

noun

smooth-bore gun; unrifled gun

A firearm whose barrel has no rifling; used in historical and technical contexts.

• 滑かっ腔こう砲ほうはライフル砲ほうに比くらべて命めい中ちゅう精せい度どが低ひくい。

  Smooth-bore guns have lower accuracy compared to rifled guns.