Today’s Photo consists of The King’s Troop Royal Horse Artillery performing in the Castle Arena, Windsor. (United Kingdom). Windsor Castle is a nice place if you ever consider going.
You can see soldiers from the Household Cavalry Mounted Regiment and The King’s Troop Royal Horse Artillery performing at the Royal Windsor Horse Show.
Ironically QF stands for Quick-Firing, but times have changed.
The caliber is 3-inch (76.2 mm).
The image was one of the winners in the 2017 Army Photographic Competition.