Calculating the fall of the shot on those things, or any large artillery piece, is VERY hairy math. Newtonian physics say that the arc of the shot should be a simple parabola, in a vacuum, but artillery flies thru the air, and the navy used analog computers with machined cams and mechanical linkages, HIGHLY complex machines, to calculate the aim before the days of digital computers. Look up Siachi and Vernet who developed the math equations the machines solve. These were derived from multiple linear regression done on simpler mechanical calculators, observing shots and measuring variables, and the simplest equations used variable exponents on the equation terms.

I once met an old cpo who used to race the machine techs using a circular slide rule, and whupped 'em.

Just think of the variables in this problem not in vacuo. Altitude density, air temp, relative humidity, wind direction and intensity, altitude difference, absolute range, and target motion. Now think about time on target shots, where the same gun fires succesive shots at different loadings and gun elevations, so all the shots hit at the same time.

Killing is complex business these days. Oh, for the antelope femur and a handy skull to bash, those were the good old days...

Think about the Japanese battleship Mushashi, with 19" main batteries, or some 42% greater weight of metal per shot.

Ditto on the strike fighter. Japanese Kates with dumb torpedos were enough at Pearl Harbor. Battleships were obsolete even in 1941. The Exocet was the real game changer. Look at what it takes to protect a carrier, and still, all it takes is one cruise missle and it's gone. No place to hide unless you can submerge. And even the old Korean diesel subs are very hard to detect. Heck, all it takes is a flying crowbar. Google Operation Thor. Space is the military high ground these days, and we fail to take it. Think the Chinese are that dumb?