The Canon de 24 C modèle 1876 was a coastal defense gun designed and built from 1876.

The Canon de 24 C modèle 1876 was part of one of several families of built-up guns which used a barrel of cast iron (fonte).

These families consisted of guns of similar construction, but different calibers and therefore tended to look alike.

The split in models was caused by that after the 1870/1 Franco-Prussian War, the French Army took over responsibility for parts of coastal defense.

It meant that the navy had to cede a lot of guns to the army, which also applied to a number of unfinished barrels of the Canon de 24 C modèle 1870.

[7] The barrel of the 24 C M 1876 was of cast iron reinforced with two layers of hoops of puddled steel.

[2] The combination of an upper carriage which held the trunnioned barrel and a slightly inclined frame, served to handle the recoil.

[1] The early carriage used eight compressor brakes (lames de frein) that slided into eight more which were attached to the lower frame.

[11] There was also a GPC mount (côte sur affût type Guerre à Pivot Central) which was a rectangular steel firing platform which sat on top of a large circular steel track embedded in concrete behind a parapet.

A rectangular steel firing platform with four wheels rotated on the track and gave 360° of traverse.

The internal charge consisted of 1.9 kg of gunpowder and 370 balls of 26.5 mm weighing 70 gramm.

It had an internal charge of about 1 kg of gunpowder, which was ignited by the heat resulting from the shock of the shot making contact with its armored target.

[12] Later on, armor piercing grenades of chilled cast iron and steel were tested.

[1] In 2023, a project started to create a large open air museum about the Gallipoli campaign.

[14] There is a picture of a gun as captured by the Ottoman forces at the end of the campaign (image to the right).