A railgun could fire a projectile that separates into many smaller bodies spread over a wide area. At high relative speed, those fragments would not need to be large to cause serious damage. Hitting a moving target would still require calculations of acceleration and its predicted position. Dispersing the shot offers one approach to the problem without eliminating the difficulty of hitting the target.
Notable Point · 3:00:55-3:03:17
A space railgun can fire a spread instead of one slug
A high-speed projectile that disperses into many fragments can threaten a wider predicted target area than a single precisely aimed round.