Sniper Railgun, eh? Is this the magnetically accelerated kind, or the cartoon kind? Regardless, it looks awesome, and british soldiers put a scope on SA-80 assault (L86-A2 LSW) weapons and use them for snipers...so it CAN be done!
What is it about guns that causes this sort of dumbass conversation every single time? You want to hear something ironic? The CoD Modern Warfare wiki has barely any of this.