"A method of creating mass driver ammunition out of super-dense neutronium. This increases the damage potential of all driver rounds."
Neutronium Rounds are the capstone of damaging Ballistic Weapons. They provide all ballistic weapons with 50% more damage and 50% more kinetic force. The damage stacks additively with Accelerator Amplification for a total of 60% more damage, but the kinetic force stacks multiplicatively. The projectile will have 50% more mass and 20% more speed, resulting in a much larger push.
Depending on luck, this technology could cost as little as 62,500 or as much as 187,500 research points to unlock.