Hi Dandebur,
The spelling on this shell-case, which has been converted to a trophy, is wrong, - it should be Loyd-Lindsay!
Brigadier General Robert James Loyd-Lindsay VC, KCB, VD, was 1st Baron Wantage. Born 17 April 1832, died 10th June 1901. He was a career soldier, and was Colonel of the Royal Berkshire Volunteers. As such he was greatly interested in the Volunteer movement here in Britain, and was very high up in the organisation of the National Rifle Association. He donated several prizes for shooting competitions at both Wimbledon (where the NRA held its earlier Meetings), and later, when the NRA moved to Bisley in Surrey. One of the competitions was for mounted troops, where teams of a certain number of men had to race round a course set with a number of low jumps made from hurdles, and shoot at targets (I cannot recall whether they had to fire whilst mounted, or whether they got off the horse to do so, but I can check if you so require).
That competition was the "Loyd-Lindsay", and its form was no doubt replicated in several parts of the British Empire, and during the 1914-1918 war wherever mounted troops of the cavalry and yeomanry were to be found.
I think the competition at Bisley ceased after 1918, as the usefulness of mounted troops in warfare was very limited in the face of modern records.
Details of Lord Wantage are on the internet, as are details (to some extent) of the "Loyd-Lindsay" competition itself.
Roger.