For the V-880VE missile:

n=6g (H=0m)
n=10g (H=20km)
n=2.5g (H=35km)

It is quite high for a missile of his generation...
... but it had several tricks to achieve it.
(mainly it consumed all fuel on board before terminal phase, or could expel it)

Hpasp
Free SAM Simulator, "Realistic to the Switch"
(U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.)
http://sites.google.com/site/samsimulator1972/home

Book from the author - Soviet Nuclear Weapons in Hungary 1961-1991
https://sites.google.com/view/nuclear-weapons-in-hungary/
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