.17 Ackley Bee (P.O. Ackley Data)

.17 Ackley Bee: A Classic Wildcat with Sharp Precision

The .17 Ackley Bee is a small-caliber wildcat cartridge created by gunsmith and cartridge pioneer P.O. Ackley. Based on the .218 Bee case, this modified round features a sharper shoulder and minimal body taper, improving powder capacity and ballistic performance. Like many of Ackley’s innovations, the goal was to push a traditional cartridge into new territory — in this case, taking the mild .218 Bee and transforming it into a lightning-fast, highly accurate .17-caliber varmint round.

Handloaders who favor the .17 Ackley Bee are drawn to its excellent velocity and flat trajectory. Typical loads push lightweight bullets — often 20 grains — well past 3,500 feet per second. This level of performance makes it a deadly option for varmints and small predators, particularly in environments where shots are taken across open fields or rolling terrain. Despite its speed, the cartridge remains relatively mild in terms of recoil and report, which helps maintain accuracy and reduces shooter fatigue during long varmint sessions.

Like most wildcats, the .17 Ackley Bee requires some care in setup. Cases must typically be formed from .218 Bee brass, then fire-formed to match the Ackley dimensions. The effort pays off in performance, offering improved velocity and better case life compared to the parent cartridge. Rifles chambered for the .17 Ackley Bee are often custom or semi-custom builds, reflecting the cartridge’s enthusiast roots. Barrel twists are typically optimized for very light bullets, usually between 20 and 25 grains.

In the field, the .17 Ackley Bee shines in its ability to deliver explosive terminal effects on varmints while keeping noise and recoil minimal. It’s particularly effective in areas where over-penetration is a concern or when maximum pelt preservation is desired. Its relatively low powder charge also makes it a frugal option for high-volume handloaders seeking cost-effective performance.

Though not mainstream, the .17 Ackley Bee remains a beloved cartridge among small-game hunters and reloaders who appreciate precision, efficiency, and the legacy of wildcatting. It stands as a testament to Ackley’s ingenuity and to the enduring appeal of fine-tuned, purpose-built cartridges.

Source: Wolfe Publishing