At Friedland in 1807, Senarmont, who was Victor's army corps artillery commander, quickly saw that there was an opportunity for an artillery concentration and movement. Rushing to Marshal Victor he obtained permission to massthe guns from all three divisions of the corps, a total of 38 pieces.These included 4 12pdrs, 4 4pdrs, 22 6pdrs, and 8 howitzers. "Senarmont split his guns into three provisional batteries; a heavy reserve and two main units each of 10 6pdrs, 2 4pdrs, and 3 howitzers.The two big batteries were placed on hillocks some distance apart to cross their fire, whilethe reserve was kept in a covered position behind the left hand battery.
Fire was opened at 400 m from the enemy, but after 5 or 6 shots from each gunthe batteries were advanced alternately to about 200 m. The batteries were supported by one infantry battalion and four dragoon regiments, while the remainder of the corps sheltered behind a fold in the ground to the rear. So precarious did this advance appear, indeed, that Napoleon is reputed to have thought Senarmont was deserting. It was a novel demonstration of the fact that artillery could make a charge on its own in the same way as the other arms, and Senarmont was deaf to all attempts to call him back. When they were 200 m from the enemy line the French fired about 20 times, still with roundshot.By this time it was half an hour after they had entered the action, and they were beginning to dominate the situation. They were lucky, however, that the enemy guns across the river were unable to inflict many casualties upon them because the Russian field of fire was obstructed by both the proximity of friendly troops and the dense lingering smoke.
Senarmont's next step was to prolonge both batteries forward until they joined together at about 60 m from the enemy. A rapid fire with canister was then sufficient to break the infantry in front of them, and hence to silence the supporting artillery, for the Russian gunners did not stand their ground once their infantry had retired.The Russians then attempted a cavalry charge, but this was obstructed by fugitives and deterred by two general discharges by the French. After this the way was clear for a French infantry attack right into the town of Friedland itself.Senarmont accompanied this for most of the way, and also poured fire into the flank of units which were retreating across his front to the safety of the Alle bridge.
Three hours after Senarmont had come into action the battle had been won. In that time his guns had fired an average of 72 rounds each, plus 12 rounds of canister. ... Senarmont lost 66 casualties killed and wounded in this battle, plus 53 horses. If there had been less smoke on the battlefield, or if the Russians had deployedan effective light infantry screen the losses would undoubtedly have been far heavier although it was perhaps the strong French cavalry supports which prevented the latter from happening. On the other side Senarmont claimed there were 4,000 enemy left on this part of the field, although a proportion of these would have fallen in the earlier fighting and the subsequent infantry attack. Nevertheless the artillery charge was a startling feat of arms, and served to prove the old horse gunner Foy's disctum that'the basic tactic is to get up close and shoot fast." (Griffith - "French Artillery" pp 41-41)