On 6 June 1944 Lt-Col Simpson left the regiment to go to 50th RA Reserve Regiment (Field), and was succeeded by Lt-Col Ronald Nicholson, who had previously been chief instructor of the Officer Cadet Wing of the School of Artillery at Deolali. Nicholson had experience of jungle fighting in the Arakan Campaign 1942–43, and concentrated on training the regiment for close shooting at ranges of or so.