Because gravity acts on ALL bullets once they leave the barrel, the path of any bullet (or projectile for that matter) that's aimed at a distant target must follow an arch where it rises for some distance before descending towards the target. For this reason, when a rifle is sighted, the barrel is pointing upwards by some measure so the bullet can reach a distant target.

Here's a lesson I remember learning back in high school Physics class. Assume you could create a setup where a bullet can be fired through a vacuum. The bullet is fired horizontally with the ground and the ground has no arch. If you could hold an identical bullet at the same height as the barrel and drop it at the same instant the bullet leaves the barrel, BOTH bullets would impact the ground at the same time.

"Smooth as Butter"...how smooth is butter?

I suggest you get a stick or tub out and rub your finger on it.... its pretty damn smooth!

It's disturbing you would suggest this...

"running" guns or "running" ammo. Guns fire, you shoot ammo. As in I "run" this sort of ammo in my rifle.

Most of these on here don't bug me, but "clip" drives me up the wall