Ballistic Research Laboratory
The Ballistic Research Laboratory (BRL) was a research facility under the U.S. Army Ordnance Corps and later the U.S. Army Materiel Command that specialized in ballistics as well as vulnerability and lethality analysis. Situated at Aberdeen Proving Ground, Maryland, BRL served as a major Army center for research and development in technologies related to weapon phenomena, armor, accelerator physics, and high-speed computing.
Source: Wikipedia — Ballistic Research Laboratory (CC BY-SA 4.0)