sight radius

Noun

(firearms) The distance between the front and rear sights of a firearm.

Japanese Meaning

火器において、前方照準器と後方照準器との間の距離

The rifle's sight radius, the distance between its front and rear sights, makes precise aiming easier at long range.

ライフルの前後の照準器間の距離は、長距離での正確な照準を容易にする。

Sense（1）

(firearms) The distance between the front and rear sights of a firearm.

sight radiuses

（ plural ）

sight radii

（ plural ）