Propellant charges for 30.5cm K14(r) = M1907 anyone?

[critical mass]

Gentlemen,

I am looking for the weight of propellant charges used in connection of the 305mm L/52 reworked to accept german projectiles and propellant charges and put into service with those on one of the Channel islands. I have failed to find accurate information in my sources and would be grateful if somebody could point me to information.

thanks in advance,
cm

[Hoplophile]

The following page describes the propellant charge used with the German equivalent of the Russian gun in question.

http://www.navweaps.com/Weapons/WNGER_12-50_skc12.php

The charge used with the Russian gun may have been slightly larger (to take advantage of the slightly longer barrel) or somewhat smaller (to reduce barrel wear.)