L5 105 mm Pack Howitzer

The L5 105 mm Pack Howitzer was the standard field gun of the Australian Army in Malaysia and Vietnam 1965 - 67, when they were replaced by the more robust, but much heavier U.S. built M2A2 Field Gun.
The L5 equipped ARA and some CMF Field Batteries during the early 1960s replacing the 25 pounder field gun.
During the Battle of Long Tan, 18 August 1966, the three field batteries, 103 Field Battery RAA, 105 Field Battery RAA and 161 Field Battery RNZA as well as B Battery 2nd/13th US Field Artillery firing in depth, fired 3,198 rounds in support of the Australian Infantry. There were six field howitzers per battery.

Manufacturer: OTO Melara, Italy.
Calibre: 105 mm - 4.1 inch
Weight of Projectile: 15 kg - 33 lb
Range: 10,000 metres - 10,940 yards
Crew: seven