Who is Alexander K?
Regarding Russian artillery, have you noted how artillery-heavy the Russian field armies were? Further, based on the lack of education of Russian artillery officers in general, the lack of senior Russian artillery commanders who were actually artillerymen, the lack of realistic field training for a large part of the period, and the general employment of Russian artillery in the field, it seems to me to be a logical conclusion that Russian gunnery was not up to western standards during the period 1791-1815. The portions of the Zhmodikovs' books on Russian tactics dealing with artillery tend to confirm that conclusion.
Lastly, see my reply to Digby on the same subject.