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by mcguire 2430 days ago
The problems are less that they don't have armor piercing rounds (which they don't), but that the shell only travels ~870 meters per second and only weighs ~20 kg. The projectile doesn't have the momentum to go through more than a few inches of armor. The British 15"/42 from WW2 had a muzzle velocity not much lower, ~750 mps, and weighed ~870 kg. That could penetrate about 10" of armor at 25,000+ yards or 12.5 miles.

The real change would be the ~20 rounds per minute rate of fire plus modern fire control.