Chinese CSS-7 – variant of HQ-2 SAM

Looks like a gigantic mortar round.

Thanks for the clarification

Then this is the target drone as once speculated. Thanks 😎

M-7

The SA-2/HongQi 2 can play a secondary role as surface-to-surface missile. Egypt reportedly used its SA-2 SAM in this manner during the 1973 Arab-Israeli war. The project of converting the existing HongQi 2 into surface-to-surface role was known as “Project 8610”. The missile was reportedly sold to Iran and North Korea under the export name M-7 in the 1980s.

http://www.sinodefence.com/army/surfacetoairmissile/hongqi2.asp

M-7 (CSS-8/PROJECT 8610)
The M-7 can deploy its payload to any range between 50 and 150 km (31 and 93 miles). Its payload is typically equipped with a single 190 or 250 kg HE warhead. It is probable that submunitions and chemical agent warheads exist to increase battlefield effectiveness. The missile is 10.8 m in length, has a maximum diameter of 0.65 m and has a launch weight of 2,650 kg.

http://missilethreat.com/missiles/m-7-css-8project-8610/

TQ-2

The TQ-2 (Tuqiang-2) is the high-speed, high-altitude target drone developed from the HQ-2 SAM. The drone has been used to evaluate the effectiveness of the HQ-2, HQ-3 and HQ-4 SAM systems.

The TQ-2 high-altitude, high-speed target drone for missile testing (Source: Chinese Internet)

http://www.sinodefence.com/army/surfacetoairmissile/hq2-part2.asp

Dongfeng 11 (CSS-7)

A DF-11 TEL.
Main article: DF-11
Also known as the M-11 (export), the DF-11 is a road-mobile short-range ballistic missile (SRBM) designed by Wang Zhenhua at the Sanjiang Missile Corporation (also known as the 066 Base) in the late 1970s. Unlike previous Chinese ballistic missiles, the DF-11 use solid fuel, which greatly reduces launch preparation time (15-30 min). Liquid-fueled missiles such as the DF-5 require up to 2 hours of pre-launch preparation. The DF-11 has range of 300 km and 800 kg payload. An improved DF-11A version has increased range of >825 km.[13] The range of the M-11 does not violate the limits set by the Missile Technology Control Regime (MTCR). Estimates on the number of DF-11s in service vary between 500 to 600.[14][15]

http://en.wikipedia.org/wiki/Dongfeng_(missile)#Dongfeng_11_.28CSS-7.29

Chinese CSS-7 missile

Another image of this HQ-2-derived surface to surface variant