Guns salvaged from scrapped ships found a second life as coastal artillery.

In 1893 a new scaled up 254 mm (10.0 in) 45 caliber gun, weighing 22 t (24 short tons), with a 225 kg (496 lb) Army shell, a muzzle velocity of 914 m/s (3,000 ft/s) and a smokeless powder propellant charge was specified.

The weights and dimensions of the new gun were expected to be as close to the original specifications as possible to remain compatible with the ships they were intended to arm.

[1] Testing in 1895 found that the guns were too lightly built to be able to achieve the specified muzzle velocity even with lower power brown powder.

The strengthened barrels were not ready until 1897 and after testing in 1899 a lower muzzle velocity of 692 m/s (2,270 ft/s) with reduced charges was accepted.