Quote:
Originally Posted by PTTG
Coilguns could easily be tuned to fire sub-sonically, and the firing is not innately loud. I don't see any reason why a coilgun couldn't have a "stealth mode" setting.
It would do way less damage, and probably switch from piercing to blunt, but it's conceivable it's still useful.
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Subsonic firearm bullets still do piercing damage, so I don't think subsonic coilgun shots would differ there.
But a 4mm coilgun round weighs 2.7 grams. That's just above the heavy end of typical .22 bullets (says wikipedia), which are normally at least a little supersonic. So...about as useful as a silenced .22, perhaps. That's not nothing I guess, especially from the pistol or SMG frames.
EM grenade launchers should probably be fired subsonic more often than not, since payload rounds don't usually need impact damage. If their base firing mode isn't already subsonic...