At Peronne the battery joined 47th Brigade RGA, assigned to III Corps. The gunners were unable to find suitable positions during the night of 24/25 September, and left their gun platforms beside the road under guard. During the night one of the platforms received a direct hit from enemy fire. The guns were positioned the following night, and from 27 September took part in the preparatory bombardment for the assault on the Hindenburg Line (the Battle of St Quentin Canal) by III Corps and II US Corps. On 27 November it carried out counter-battery fire in support of the Americans' preliminary attack on 'The Knoll', continuing the following day as calls for support came in from the infantry. For the main attack on 29 September, the battery fired a large number of tasks on roads and bridges, as well as enemy batteries.