In all the material that I have seen and studied the Armee du Nord was equipped with 6- and 12-pounder field pieces and with 5.5-inch (24-pounder) howitzers. There may also have been the newer 6-inch howitzer for the Guard artillery.

General Ruty was making a case for bringing back the 4- and 8-pounder field pieces in December 1814, but as far as I can tell there were no 8-pounders in Belgium in 1815.

It should be noted that the French 8-pounder was almost equivalent in throw weight with the British 9-pounder. And the French 6-pounder was almost a 7-pounder in English weight. The 8-pounder roundshot weighed 4 kilograms and the 6-pounder 3 kilograms. Using the conversion of 2.2 pounds per kilogram, that gives the weight of the roundshot 8.8 and 6.6 pounds, respectively (rounding to the nearest tenth for the conversion factor).