The Iranian Qiam missile...

From the ArmsControlWonks:

"... The missile definitely is a Scud variant, but with slightly elongated tanks compared to Scud B (thus the lower initial launch acceleration than that of Scud B, which has 2.2 g). With the 0.88 m diameter, the warhead baby bottle is the well known Ghadr-1 (or Shahab 3M) warhead, with the typical 0.88 m base and 0.6 m body diameter. Length also is identical.

So, what does this mean?

Most probably, the Iranians tested a new guidance that is able to control aerodynamically unstable rockets (no fins!). This feature is desired if the missile is to be launched from a container – either mobile or stationary (silo).

In this case, Qiam 1 is only the first test in a row, and we will soon see Qiam 2, which will again be declared as a “new missile with higher accuracy” in the press release. After that – because it makes sense to have a Sejil without fins as an ultimate goal for silo or container launch – we can expect a launch of the Sejil with the new guidance system and without fins, probably again designated as a “new missile”.

Though detailed analysis still has to be done, it seems clear that the Qiam is a modified Scud that is used as a technology test bed."