I was wondering what the MOS is called for someone who tests weapons in the Army???

Question

Also, from my understanding to do this you have to be stationed at Ft.Benning or in Nevada, but there isn't an army post in Nevada. Just wanted some info please.

Answer 1

the testingground is in nevada

Answer 2

If its rifles and machineguns its Fort Benning.  It its missiles it may be Nevada or Fort Bliss Texas.  If its artillery pieces its probably Fort Sill, Oklahoma.  

White Sand Missile Range is a major missile testing facility.