[max_volumenz]

I think that it is a good army for Pure Gk

i would however remove 6 Gk (3 frome each squad) and add a 5 man fast attack squad

this can either teleport on or start on and as GK are fearless the 7 man squad isn't much of a problem

this is my list of Prue Gk and is about the same:

HQ:
Grey Knight Grand Master with Hammerhand 293 pt.
- 3 Terminator Retinue (NFW and storm bolter)

TROOPS:
6 Grey Knights (including Justicar) 200 pt.

6 Grey Knights (including Justicar) 200 pt.

FAST ATTACK:
5 Grey Knights (including Justicar) 170 pt.
- 1 incinerators

HEAVY SUPPORT:
Grey Knight Dreadnaught 145 pt.
- Twin-linked Lascannon and Incinerator

As u can see it is pretty similar to yours

i haven't tried it out yet but i think it should do well and if i find the teleports are not showing up acn either switch them to troops or swap hammerhand for a teleport homer on one of the squads

hope this helped