You aren't actually any deader from exploding into a bunch of bloody chunks than you are from being cut in half.
Anyway, you couldn't use this for anything but relatively close range. Without rifling and an aerodynamically shaped projectile, the payload will just go tumbling off in a random direction. You couldn't snipe with it or anything. Much more promising for throwing a bunch of high-mass rock moving at high velocity at very short range.
But frankly, I'm not sure it would be worth the xp investment to level it up high enough to hit anything.