Gunner is a 2014 stallion out of mare Papoose by the late stallion Mystery. He gained his first mare, Perdita, in 2019, after she and her newborn filly, Anisak, had become separated from their band. In July 2020, Gunner expanded his band by taking mares from the stallion Copper, including Sundance, Cedar, Cheyenne, Raven, and Raven’s foal, Raven’s Myst. His band grew further in February 2021 with the birth of Raven’s filly Mystique and Perdita’s colt Ace. In 2023, Birch had a filly named Aspen, and Little Mo had a filly named Meadow; however, Birch and Aspen eventually left the band to join Applewood.
In March 2024, Perdita added a new member, a filly named Chloe, and soon after Raven’s Myst gave birth to filly Rumor. Tragedy also struck the band that year when stallion Ace disappeared.
In 2025, Gunner began losing members to stallion Maverick, and his band began to shrink. He also lost a mare with the passing of Flame. However, the band grew slightly in July when Little Mo gave birth to a colt named Flint.
