[moe mensale]

In conventional guns, a bullet loses velocity from the moment the gunpowder ignites and sends it flying. The railgun projectile instead gains speed as it travels the length of a 32-foot barrel, exiting the muzzle at 4,500 miles an hour, or more than a mile a second.

In a "conventional" gun the bullet has a velocity of zero before ignition occurs. So at ignition that bullet starts losing velocity? From zero? Negative velocity? :?