pinpoint accuracy at a range of 62 kilometers
= = =
pinpoint? very vague
62 km = about 39 miles. Dang, that IS a long ways.
The 16 inch naval guns of WWII battleships had just about the same accuracy as a good rifle. About a minute of angle which is pretty good.
I assume we can do much better now.
If my figures are correct a 16 inch 2000 pound shell hitting within 30 feet of the target 20 miles distant in most cases that would be all you need. Every thing not heavily buried and steel reinforced. Would be destroyed.
The Confederate in South Carolina learned That forts built of sand and palm trees fared far better than brick or stone forts.
The sand absorbed the blast