From left to right:
CHARM 3 training round (C3TR). Because DU rounds are normally fired in wartime only, a tungsten-based projectile is used for training purposes. Opposition to the use of Depleted Uranium even in wartime has led to the further development of the training round as the L28 round.
APFSDS L26 (alias CHARM 1). This has a depleted uranium (DU) long rod penetrator and uses the L14A1 or L14A2 combustible case charges.
L3 Bag Charge, the means to fire the round, high explosive and very powerful.
Dont remember the 4th from the left so if you know, feel free to say.
L3 Bag Charge without the outer casing.
HESH L31 This is employed as a general purpose high explosive round, though it also has a good anti-armour performance, and is effective against fortifications and structures. The HESH L31 is fired using the L3 bag charge. Muzzle velocity is 670 metres per second (2,200 ft/s).