In the grand sortie in which the Spanish batteries before the garrison were destroyed, all the grenadier and light infantry companies in garrison were made up to their establishment previous to the sortie. The grenadier and light companies in this regiment consisted of four officers, five sergeants, and 101 rank and file each. They were stationed with the companies of the Thirty-ninth and Fifty-sixth Regiments, and a proportion of artillery and engineers, amounting in all to 668 men, in the centre, or reserve column, commanded by Lieut.-Colonel Dachenhausen and Major Maxwell. The orders they received were to march through Bayside barrier, towards the mortar batteries. The moon shone brightly as the soldiers assembled on the sands at midnight. Between two and three o’clock darkness overspread the country, and the troops issued silently from the fortress. They were challenged and fired upon by the enemy’s sentries, but the British soldiers rushed forward, overpowered the Spanish guards, and captured the batteries. The enemy’s soldiers, instead of defending the works, fled in dismay and communicated the panic to the troops in their rear. Within an hour the object of the sortie was effected, trains were laid to the enemy’s magazines, and the soldiers withdrew. As they entered the fortress, tremendous explosions shook the ground, and rising columns of smoke, flame, and burning timber proclaimed the destruction of the enemy’s immense stores of gunpowder. General Elliot stated in orders:— “The bearing and conduct of the whole detachment, officers, seamen and soldiers on this glorious occasion, surpass my utmost acknowledgements.” The casualties in the three columns of attack were only 4 killed, 24 wounded, and 1 missing. The grenadier company, commanded by Captain Sinclair on this occasion, drove the enemy from their centre guard-house, and the light infantry, commanded by Captain Dalrymple, obliged them to evacuate Parchal’s battery. The casualties of the battalion during the three years that the siege lasted were 1 sergeant, 41 privates killed; 6 officers, 7 sergeants, and 108 rank and file wounded, and 58 privates died from sickness. Although application has frequently been made to the authorities, for permission to have Gibraltar inscribed on the colours, yet for some inexplicable reason, this has always been refused, though granted to other regiments that served during the siege with the Seventy-third. In May, 1783, it embarked on board transports, and sailed for Portsmouth, where it landed in July, and occupied Hilsea Barracks. The following month it marched to Stirling, where it was disbanded on the 3rd October after a service of five years, during the whole of which period it was commanded by Lieut.-Colonel the Hon. George Mackenzie.