Wait a second... how come the firer doesn't explode?

Basically it fires a featherlight emitter which emits the 8 gazillion ton bullet after a split second.

Another alternative that was the only thing available back in the older builds is making the projectile be the shell. It had a few drawbacks like going downwards slightly instead of straight.

This is the future. All glory to emitters!

Thought as much. So don't fire this thing when moving quickly eh!

I have resisted the urge to try out this useless gun for too long. Here I go!
Also, the science of a neutron star is that a chunk the size of that bullet weighs as much as somewhere between a bus and a particularly large boulder. The concentrated area means it is streamlined, its fast speed means it won't stop, and its weight means it won't be stopped, by anything.
RESULT: Good idea, we need a rapidfire one with infinte ammo 4 teh lulz.

eh, more like dont fire it at your own legs. if it uses burst it should be all good to fire while moving.. theoretically

On the first try the star killed the guy I shot, looped around, killed me, and then looped around until it got my brain......

....all with one shot

Well it is neutron star density, which is kind of the entire idea...
Realisticly it wouldn't have done that, but instead have swallowed most of the planet due to sheer density....

You do realize that 800,000 kilograms versus the entire Earth is roughly equal to the difference between a grasshopper and, say, an aircraft carrier, right?

The Earth weighs 13 SEPTILLION pounds. Sure, an actual bit of neutronium is going to be so dense it'll flow right through most matter, but it's not going to do much on the way. A piece of neutronium would go right on through Earth like a bullet through air, and then eventually settle right at the center of the Earth. No real harm done, though it might lengthen the day by 0.000004 of a second.

are you a freak'n math mathematician?

i think than the newtron star matter is a realy dense and heavy material...
eeer...
a small chunk in the size of a small teaspoon of sougar would be 50.000.000.000.000 kg...
so imagine a chunk in the size of a small rock...
i would be a lot heavier than JUST 800.000 kg...

According to Wikipedia, the density of the crust is estimated to be 3.7E17 Kg/cubic m.
The projectile is a 3x5 chunk, going by 24 pixels/m is it approximately 0.125m x 0.2083m x 0.125m, so 0.003255 cubic meters.
Using the estimate above, it should be approximately 1.204E15 Kg, or 120,400,000,000,000 Kg.
This is a little heavier than the projectile, so I'll say the projectile is hollow. MEH.

Yes. I did just go mathematician.

oooh...
the think i just said came for a book than i had...
sooo yeah...
never the less it is heavy...
like very heavy....

Things like this shouldn't be taken seriously in a scientific sense. If you're considering how the the object would interact with "normal" materials, you should consider the force required to maintain the projectile's density.

A neutron star has a gravity ~200 billion times that of earth. Instantaneously remove the mechanism making the bullet "neutron star material," and what you essentially have is a small but incredibly powerful bomb. If this is 800,000kg I would imagine the explosive force to be well into the megaton range, but it's late so I'm not doing the accurate math.

It's 20 pixels per meter, but the point's pretty well dead anyways.