Guardians of the Stars
M57 Gyroc Rifle
Era: Space Era
Ammo: 15mm Gyroc, 10 round clip or 20 round extended clip
The M57 Gyroc Rifle came much later than the Texas Gyroc Revolver and unlike that weapon the gyroc rounds of this rifle are fired under electromagnetic acceleration and only after around 30m does the rocket kick in. The biggest reason for this is that the flash and noise of the Gyrocs rocket motor kicking in is distant from the weapon itself, so targeting the shooter is much harder.