http://looserounds.com/2014/09/21/fbi-9mm-justification-fbi-training-division/

and their testing protocols are exacting.
Specify your ballistic parameters, and they will tell you which ammo meets it.

The lab is top notch.

The organization has a long and storied history of hammering out ballistic 'studies' that favor whatever gun and.or cartridge they have decided to adopt.

that's politics. That'll never change as long as bureaucrats and politicians are in business.

I'm only familiar with the sterling work done for a certain unit when a new pistol projectile was being researched.