@Umidori
For the rulebook concerning this, specifically as per Arsenal Errata v. 1.3.2 September 12, 2008
p. 30 Ares Thunderstruck Gauss Rifle
Add the following sentence to the end of the weapon description:
“Halve all armor but smart armor against the gauss
rifle (before applying the AP modifier)”.
So it is even worse that you think, because it gets to halve that armor value and then still apply the AP modifier just to add insult to injury.
So there was one small error by us, by referring to impact instead of the ballistic but considering most armors had only a 2 pt difference between their Ballistic and Impact values you can forgive one if we defaulted to the impact value for this discussion since elemental effects are so common and its easier to remember halve impact.
Especially when things like Metal Elemental effects still go against half impact, when really they should be against ballistic (high speed metal shards after all) but it was probably easier for the devs to keep it all in one formula.
In regards to fluff mentioning trading damage for faster rate of fire, they are not referencing to other assault cannons but to earlier versions of guass/railguns like the RELÁMPAGO 120MM Railgun (Aztlan pg 179), which had the abysmal rate of fire of 1 every second combat round as it took a full Combat round to recharge the capacitors. With an original damage of 20D, personal body armor was a secondary notion to this bad boy.
QUOTE ("RELÁMPAGO 120MM Railgun (Aztlan pg 179)")
RELÁMPAGO 120MM RAILGUN
A brutally powerful vehicle weapon manufactured and
used by Aztechnology, the Relámpago (“Lightning”) uses
high-capacity capacitors and multiple electromagnets to accelerate
a ferrous slug to extreme velocities. The slug does terrific
damage through sheer kinetic energy. Capacitor recharge takes
1 Combat Round, so this heavy weapon can only fire in every
second round. This behemoth takes up 2 CF for the gun itself,
another 2 CF for the capacitors, and yet another 1 CF for
ammunition, and so it can only be mounted in relatively large
vehicles such as LAVs.
A Relámpago can always be identified by the distinctive, deafening
whip-crack caused by the hypervelocity round exiting the barrel.
Type ........Ammo..... ..Damage ...Cost
Railgun .Single rounds ...20D ....400,000¥
Range (in meters/kilometers)
Short........ Med............... Long............Extreme
5–500.....501–1,200......1,201–5km...... 5–12km
Course this was the heavy version meant for mounting on vehicles but thanks to some clever techies somewhere they have made it a bit more portable with a better ROF, if less damage, in the form of the Thunderstruck.
I can not find it now, but there was a jeep mounted version of the Relampago somewhere that had two barrels so the ROF went up to 1 per combat round, ie Barrel 1 fired 1st round, Barrel 2 fired on 2nd combat round while barrel 1 was recharging. Might have been an adventure or other piece....
Again, you have to remember you are making the leap from supersonic bullet velocities from regular weapons (again 1-3+ Mach) to Hypersonic velocities (5+ Mach).
This kind of damage from the ramp up in energy to push a item to these speeds is outside what standard ballistic was designed to protect against.
Right now the RL Navy has been playing with
this sort of tech but it's still hideously big,but this vid is from 3 years ago so some improvements can be expected.
Of course we are currently looking at shipboard cannons so size is not so much an issue. Making them comparable at smaller scale will take some time.
The real leap will be if and when we get decent room temp superconductors, used for both power storage and ramping up the magnetic thrust potential, then expect to see railguns become more feasible.
Now if you are facing off with some loony using one and they have the added power packs I would do called shots on the power cells. At the minimum the cells short out and no more shooting by loony, best case something go crackle, crackle, ZAP (if it shorts/grounds out through the wearer) or Boom (depending on cell composition).
Engulfing by a water elemental is always entertaining as well, though depending on the level of discharge it may wreck the pet.