Hello Dave S
From the Battery Digest of Service (RA Library) the battery fighting as separate units; Left, Centre and Right. To confuse matters, for an unexplained reason, Left Section was re-designated Centre Section in April 1901.
The Battery only had one battle casualty prior to Handford's MID (16-09-1901), Farr-Sgt S Spragg wounded Zeerust 22-10-1900, so no obvious battles/actions to look at.
Here are the highlights for each section up to Sept 1901.
Left Section - garrison at Kuruman Sept 1900 to April 1901 - town was surrounded by Boers, a soft siege.
April to Sept 1901 - now Centre Section, trekked between Vryburg & Kuruman, Aug 20 & 21 captured laagers of Commandant van der Venter and Van Zyl.
Right and Centre Section -
Aug 16 1900 Buffels Hoek "small engagement" - "battery's baptism of fire"
Aug 20 Ambushed at "Ottokorp" fired case at 350 yards
Aug 22 Right section in action at Lowe's Farm - complimented
Sept 8 - Centre Section becomes Left Section - trekking with Methuen and Douglas - in action "complimented ..on its excellent shooting"
Oct 24 - in action between Zeerust and Kaffir's Kraal, running fight "much complimented in orders [by Colonel Douglas] and report sent of its conduct wired to Lord Roberts" [This might be at TNA in WO108, or in LG - possible DCM action?]
Right Section
April 1901 - May 1902 detached - Ventersdorp/Potchefstroom - many small actions.
Left Section
July 1901 - Klerskdorp - column work
Hope this helps.
Meurig