The distance between a gun and a target such that it requires minimal effort in aiming it. In particular no allowance needs to be made for effects of gravity, target movement or wind in aiming the projectile.

Horizontally (as the angle at which a projectile is launched); directly or straight (at the target). / (idiomatic) Directly; bluntly; without pretense or caution.

(forensics) Very close; not touching but not more than a few metres (yards).

In a direct manner, without hesitation.