Kinda, you need a fast firing gun, that has tracers.
Then set the RTTRatio to 2.
That means it fires one round, then switches to another round.
Or you could make the emissionoffset the same as the muzzle offset.
and make the shell come out at negative velocity.
But the shell wouldn't go in the same direction as the round.
Sorry, it isn't possible, unless you wanted to use one of the above methods.