snap in

Verb

(US, military) To practice aiming, adjusting and firing a rifle with no ammunition

Japanese Meaning

軍用語として、実弾を用いずにライフルの照準、調整、射撃の操作を練習すること

Before the live-fire portion, the platoon took time to snap in with unloaded rifles to refine their aim.

実弾射撃の前に、小隊は照準を磨くために弾の入っていないライフルで空撃ちの練習を行った。

Sense（1）

(US, military) To practice aiming, adjusting and firing a rifle with no ammunition

snaps in

（ present singular third-person ）

snapping in

（ participle present ）

snapped in

（ participle past ）

snapped in

（ past ）