The main armament of the "Chacal"-class ships was originally intended to be mounted in a mix of single and twin mounts, but the twin-gun mounts proved unsatisfactory so the ships were armed with five 40-caliber Canon de 130 mm mle 1919 guns in single mounts, one superfiring pair each fore and aft of the superstructure and the fifth gun abaft the aft funnel. The guns were numbered '1' to '5' from front to rear. The mounts had a range of elevation from -10° to +36°, which gave the gun a range of at maximum elevation, and the guns could be loaded at any angle below +16°. They fired armor-piercing projectiles at a muzzle velocity of at a rate of five to six rounds per minute. The fore and aft magazines had a total capacity of 802 shells. Each mount had a ready rack holding 24 shells, except for No. 3, which had a larger supply of 30 rounds because it lacked an ammunition hoist down to the magazines.