With the 18th dispatched to check Lusignan, Bonaparte turned all his attention to Quosdanovich. He understood the defeat of this column was the key to the battle. Unfortunately the French had very few reserves left and mostly had to accomplish this with troops already at hand. Making the best of interior lines and his advantage in artillery, Bonaparte thinned out Joubert's lines facing the Austrians frontally at the Trambasore Heights as much as possible and concentrated them before the gorge. A battery of 15 French guns were massed and poured canister shot at point blank range into the advancing Austrian column that was emerging from the gorge. This devastating firepower struck first on the advancing Austrian dragoons who broke and stampeded through their own infantry causing mass chaos. At this juncture the brigade of Charles Leclerc assaulted the column frontally while Joubert laid down heavy flanking fire from San Marco. Here Antoine Charles de Lasalle with just 26 horseman of the 22nd Horse Chasseurs charged into the melee. Lasalle's men captured a whole Austrian battalion and seized 5 enemy flags.