Railguns use super-powered electromagnets to propel solid tungsten slugs
at tremendous velocities. This draws on a lot of power and requires an
extremely strong barrel, or opposing pressure of the magnets risks
causing the weapon to explode.
Changes from equivalent Firearm:
+2 base damage
Fires rounds of a calibre 5 times smaller, although for every other
purpose are treated as firing the original calibre of weapon.
Base cost is equal to the calibre's recoil (as if it were a firearm)
times $750 instead of $100.
Always fires Tungsten Flechettes, so always have smoothbore barrels.
This results in +50% range and AP 2 rounds.
Power and Ammunition:
Rail weapons require both ammunition (in the form of heavy tungsten
darts) and power from internal batteries, like a laser. Firing a
railgun uses ammunition in the same way that a standard firearm does.
The weight of the power cell in addition to the moving parts of a
kinetic energy weapon increases the base weight of the weapon by +50%,
Standard railgun barrels are made of high-quality steel. On an attack
roll of 1, roll another d6. On another result of 1, the barrel is
damaged to the point of being unusable. Firing the weapon with a
damaged barrel destroys the weapon, and the damage -3 to the wielder.
Replacing a barrel takes twelve seconds (faster with Rapid Reload and
similar abilities). Replacement barrels cost the weapon‚s base (before
being increased by turning it into a Railgun) cost divided by 2, and
of the weapon‚s base weight.
Titanium barrels cost ten times as much, but let you reroll barrel
damage rolls. Adamantine barrels cost 250 times as much, and never