Official tests were arranged in Russia in 1760, but these failed to show an appreciable advantage of the licorne over older designs. Nevertheless, the Senate was successfully pressured by Shuvalov to declare the licorne an improvement, albeit not a satisfactory one. The number of licornes in service rose to 280 in that year, compared with 603 cannons, 169 howitzers, and 117 mortars; most of them (224) were in the field artillery.
Formal evaluations were conducted in Russia in 1760, but they did not demonstrate a notable superiority of the licorne over earlier designs. Nonetheless, Shuvalov successfully influenced the Senate to acknowledge the licorne as an improvement, albeit one that was not entirely satisfactory. The total number of licornes in service increased to 280 by the end of that year, with 603 cannons, 169 howitzers, and 117 mortars also in use; most of them (224) were employed in field artillery.