I.S.Zhirkevich, an officer in the 2nd Guard Light Artillery Company in 1810-1813 (later in 1813 he became the commander of the company), writes that at Bautzen his company was positioned in a fieldwork, and on the 20th of May French artillery started to fire at them:
[Enemy] shots began to take their effect upon us and killed 2 my men near the gun at the left face of my fieldwork. Having recognized that we were fired upon by howitzers and knowing that my shots could not achieve the French batteries, I ordered to move two guns behind the ditch.
On the next day Zhirkevich had a talk with Prussian General Pirch, the commander of a Prussian brigade positioned near Zhirkevich’s battery. Pirch asked him why he don’t give order to fire, when there is an enemy battery in front of him, which highly annoyed all them. Zhirkevich replied:
Would you like me to go forward? I would sacrifice my men absolutely unfruitfully, because my pieces can’t carry as far as the French battery.
Pirch expressed his doubts about that, pointing to the enemy shells, which flew over them and reached far behind them. Zhirkevich continues his story:
I immediately ordered to fire a unicorn, and our shell exploded before our eyes at our side of the river, at the base of the Bautzen hills.
Memoirs of I.S.Zhirkevich. // Russkaya Starina. 1874, vol.XI, pp.423-424.
I.T.Radozhitskii, an officer in the 3rd Light Artillery Company in 1812-1814, describes an incident, which he saw a few days after the battle on the river Katzbach:
Our battery was positioned at a riverbank, and there was a meadow between the bank and the river; a small column of jagers, less than a company, marched by the valley to the crossing [over the river]; suddenly a French howitzer from the other bank of the river threw a bomb at a high angle, which dropped between two officers walking behind the column and killed them both: one was pierced through his head, another – through his stomach, and the bomb stuck into the ground and sputtered out. Several jagers returned and buried the sad remnants of the unfortunates under our hill. Another bomb had got no success: it exploded high in the air. Then we ascertained the advantage of the French howitzers over our unicorns, which cannot be elevated so high like mortars or howitzers.
Radozhitskii, I.T., Pokhodnye zapiski artillerista. (Campaign memoirs of an artilleryman). Moscow, 1835, vol. 1, part 2, pp.215-216.