Guided artillery, like Excalibur with muzzle velocities that can exceed 1000m/s and unit costs of <$100k can be at edge of space in ~30s, perhaps faster than a missile, with ramjet variants (Nammo etc) even faster (up to perhaps 1500m/s)
This is wild, I did not know that Excalibur had CEP under 1 meter or that there were artillery shells with solid-fueled ramjet engines.
This is wild, I did not know that Excalibur had CEP under 1 meter or that there were artillery shells with solid-fueled ramjet engines.