Germany - PzH2000

The Panzerhaubitze 2000 ("armoured howitzer 2000"), abbreviated PzH2000, is a German 155mm self-propelled Howitzer developed by Krauss-Maffei Wegmann and Rheinmetall for the German Army. 

It is particularly notable for a very high rate of fire; in burst mode it can fire three rounds in 9 seconds, ten rounds in 56 seconds, and can—depending on barrel heating—fire between 10 and 13 rounds per minute continuously.

The PzH 2000 has automatic support for up to 5 rounds of Multiple Rounds Simultaneous Impact (MRSI). The replenishment of shells is automated. Two operators can load 60 shells and propelling charges in less than 12 minutes. PzH 2000 has also been selected by the armies of Italy, Netherlands, Greece, Lithuania and Croatia, and more orders are probable as many NATO forces replace their M109 howitzers.

The maximum range of the gun is 30 km with the standard L15A2 round (a UK design for FH-70 and stockpiled by Germany for M109G and FH70), about 35 km with base bleed rounds, and at least 40 km with assisted projectiles.