“I think the consensus is to use a hybrid round. Here is what I’ve come up with so far.” Drei would convert one of the walls of the bar into a display to show off her quick rendering of the proposed round.
The round would have two main parts, a caseless propellant in the rear connected to a metal projectile in the front. The sides will be flattened slightly to provide a good connection surface for rail gun users. The propellant will be shaped like a casing so it is easily used in current firearms and the indention in the center of the round will help the expanding gasses shape the round into a more circular shape when fired so the railgun shaping does not affect the performance in current firearms.
The metal upper section, or a metal bracing through the round, would allow it to be used by weapons that propel a round with electromagnetism.
The caseless design means that railguns can still use the round without having to be designed to eject a casing.
The round would be effective against unarmored targets, or against armored targets when launched from a pure rail/coil gun or hybrid cannon.
Hybrid weapons designed to use the round would have extreme reliability, since even under low power conditions or if part of the weapon fails, it would still be able to fire short of catastrophic mechanical failure.
Soldiers would be able to swap ammunition between pistol cale, SMG scale, rifle scale, armor scale or crew served scale weapons.
Rounds with these specifications could be made for different roles, such as low velocity, high velocity, and anti-armor.
And finally, one bullet for everything would greatly simplify logistics.
The drawbacks is that they would be slightly larger than a pure rail/coil round, however current railguns seems to be firing rounds about this size anyways.
Along the same lines, the round is slightly more complicated to build.
Current firearms would also have to deal with increased heat buildup issues that go along with using caseless rounds.
As for mini-missiles. We would need to know the size, hot or cold launch type, and data connection port method in order to standardize a mini-missile between platforms and I do not have this data for the Mindy weapon.