Rigth, but this is not related to Angara technology. Popovkim seems to be decided to take tough measures. Sooner or later these problems will, likely, be fixed.

That’s rigth. 9M82M launched on ballistic paths can reach 400-450 km. Likely S-300V4 incorporate some S-400 electronics allowing to see and guide the missile to such a distances.

Some sources said that 40N6 top speed is 4km/s and max intercept alltitude is 185 km. It is much better parameters than 48N6 missile. I think it is brand new missile.

That’s the THAAD-like 58R6.

Taken from http://www.ausairpower.net/APA-NOTAM-230408-1.html

Biggest radio location system is 55Zh6-1 NEBO-UE. This radio locator shows target position in three coordinate system. Coverage is 500 km range, 40 km height and all-round [Ed: 360° mechanical antenna steering]. Detection ranges for a combat fighter flying at 10,000 m are 300 km and 20,000 m are 400 km; targets flying at 500 m can be found at least 65 km. Radio locator also very accurate: 500 m in range, 850 m in height and half degree in azimuth. So, can link with new S-400 Triumf [Ed: SA-21 Growler] system, send big 48N6DM missile 400 km. Smart enough to guide missile to kill box so target not know it has company coming.

I know, the credibility level is low, but…

More likely 40N6 is the 48N6DM with an active seeker and retractable fins to better travel the midcourse phase of a parabolic long-range shot.

State tests of the 400 km long range missiles ended the last year. Probably the next batches will have it.
Anyway, is that a big deal? Shots to such distances will just target high flying low-maneuvering targets (AWACS, tankers and so on).

A S-400 regiment in the far east

http://en.ria.ru/mlitary_news/20120815/175230269.html