But I'm staying with some questions - in the (I suppose "reserve") artillery park - where ?
And when did he capture those unicorns - maybe already at Austerlitz and surley at Friedland ?
Maybe also at Borodino, but I don't see how these guns could be brought into Poland in the retreat.
No doubt they were good hybrid guns - combining the effects of a gun and a howitzer - I suppose that would be at short ranges, as real howitzers were not that effective at short distances.
One can even say that the russian artillery was the best part of their army, after the standardisation and reorganisation by Count Arakcheyev, in charge as Inspector of the Artillery in 1805
As for the gunsight - the Karbanov system was as good as the french Gribauval
At last one could say that the common Russian soldiers treated their guns with the same, if not greater reverence, than the French did their eagles, as it was considered more than a disgrace to lose a gun, because they believed those guns came from melted church-bells. This belief had a historic basis, as Peter the Great, being in desperate need for artillery, requested the church severals church-bells for making guns and mortars.
Even as the guns of Peter the Great had been remelted to produce new guns, the Russian soldier still believed they had a sacred dimension that was little understood by Westerners, as the metal of those guns came in origin from church-bell, blessed by the popes and considered being as holy as the churches themselves.