着ちゃく弾だん距きょ離り

noun

range (of a gun); firing distance

Technical term used in military, shooting, or ballistics contexts to describe the distance a projectile travels or the effective range of a firearm.

• この銃じゅうの有ゆう効こう着ちゃく弾だん距きょ離りは約やく500メートルです。

  The effective range of this gun is about 500 meters.

• 着ちゃく弾だん距きょ離りを正せい確かくに測そく定ていするにはレーザー距きょ離り計けいを使つかいます。

  To accurately measure the firing distance, we use a laser rangefinder.