These are the casings belonging to bullets of various calibers used at different stages of the World War I.
The end of the 19th century and World War I were at the center of modern weapon developments in terms of rifle bullets. Significant engineering advances during this period made projectile designs more effective and lethal. With the use of lead, copper and other metals, bullets gained lighter and aerodynamic properties, thereby increasing their range and accuracy. The effectiveness of rifles and machine guns has greatly increased, their lethal effect in battles has increased dramatically, and combat tactics have radically changed. Rifle bullets were usually used in two main types, rifled and smoothbore, and rotated in the barrel, allowing more accurate shots to be made.
The Ottoman Empire used Mauser rifles and suitable caliber bullets (7.65x53 mm and 7.92x57 mm) in the Dardanelles War, in particular. These shells played a critical role in providing a strategic defense against enemy attacks on the Gallipoli Peninsula. The Ottoman soldiers successfully fought against enemy landings with these shells and achieved important successes that would affect the progress of the war. This process has clearly shown how critical an element rifle bullets are in military strategies and defensive tactics.