An oldie but a goodie. Basics are as follows...
* Has a 500 mile range.
* Carries a 600 kg payload.
* Has a CEP of 700m (this is really unimpressive but we are talking about 1960's technology).
* Assad has used these weapons against the rebels with reportedly devastating effect. People describe massive destruction after one hits.
Again, this is not an impressive weapon but if you think back to your Gulf War One history, then you'll realize that not even our Patriots were entirely successful in shooting them down. Even the remnants can be deadly.