Arsenal vs. Artillery vs. Ammunition vs. Ordnance

 1.Arsenal= It is a place where arms and ammunition are made, maintained and repaired, stored, or issued, in any combination, whether privately or publicly owned.

2.Artillery- It is a class of heavy military ranged weapons built to launch munitions far beyond the range and power of infantry firearms.

3.Ammunition= Ammunition (informally ammo) is the material fired, scattered, dropped or detonated from any weapon. Ammunition is both expendable weapons (e.g., bombs, missiles, grenades, land mines) and the component parts of other weapons that create the effect on a target (e.g., bullets and warheads).

4.Ordnance= military supplies, especially weapons and bombs