On 22 September 1918 the brigade transferred to IX Corps, which had been reconstituted in Fourth Army to take a leading role in the continuing Hundred Days Offensive. IX Corps assigned it to its former parent formation, 46th (North Midland) Division, for the Battle of St Quentin Canal (29 September–2 October) when the division performed one of the great feats of the First World War by crossing the canal and breaking open the Hindenburg Line. Careful artillery preparation and support was an integral part of this success. Sir Hill Child of 46th Division had nine brigades of field artillery under his command, including CCXXXII AFA Bde, and several brigades of corps heavy artillery were also firing on the division's front. The bombardment began on the night of 26/27 September with harassing fire and gas shells, followed with intense bombardment with high explosive shells until the morning of the assault. Every field gun was used in carefully timed barrages: creeping barrages (including smoke shells) ahead of the attacking troops, with pauses at the end of each phase, including a standing barrage of three hours to allow mopping-up of the first objectives to be carried out and for the second wave of troops to pass through and renew the attack behind the next creeping barrage. The first of these creeping barrages actually progressed at twice the normal pace while the infantry rushed downhill to seize the canal crossings; it was described in the "Official History" as 'one of the finest ever seen'. The attack was a brilliant success, and by the afternoon the field artillery batteries were crossing the canal by the bridges that had been captured or thrown across, and were coming into action on the far side.