101 Regiment is the only reservist unit that operates the M270 Multiple Launch Rocket System (MLRS) - the British Army’s main precision fire weapons system.
MLRS is equipped with up to 12 high-explosive warheads and a GPS guidance system able to fire accurately at a range of up to 70 kilometres.
America's Artillery Capabilities: On target! MLRS 270 & MGM-140: 227mm M26, M30/M31 missile
Source: Military Update
Source: Military Express
PLZ-05 Self-propelled howitzer has a 52 caliber barrel, 800 hp diesel engine & gross weight of 35 tonnes. It is deployed only with the People's Liberation Army (PLA).
PLZ-45 However, is based on Norinco's Type 89 (PLL01) 155mm/45-calibre towed gun-howitzer. The PLZ-45 self-propelled howitzer is used by the People's Liberation Army of China (PLA), People's National Army of Algeria, Kuwaiti Army and Saudi Arabian Army.
Range 20km to 100km dependant upon ammunition.
Source: WarLeaks - Military Blog
The K136 Kooryong is a South Korean rocket artillery system that was deployed in 1986. The multiple rocket launcher has 36 tubes and fires 130mm (K30, 131mm (K33) rockets. Payload is conventional High explosive and pre-fragmented HE, containing 16 000 steel balls at a range of 22 or 30 km. Launcher is carried on a KM809A1 6x6 truck. About 150 units were built.