15 miles is good, but 200 mile standoff artillery is better and cheaper per shot than the equivalent missiles.
I bet we'll see a resurgence of projectile based anti-aircraft weapons. Imagine a 100-120mm bore railgun that can fire a mach 12+ projectile into the projected location of a plane, and add an actuator or two for terminal guidance to deal with maneuvering, turbulence, etc. Faster than a missile, no heat bloom to give it away on ascent, no smoke trail, etc. The only plane that can detect the incoming projectile with current technology is the one using active radar, and that's a recipe for death itself. Plus, it's a mach 12+ projectile, so even if they do see it, they don't have much time to evade.
