.22 Ackley Hornet Load Data

Caliber Overview

The .22 Ackley Hornet is a notable wildcat cartridge that traces its origins to the early to mid-20th century, developed by P.O. Ackley, one of the most respected names in cartridge modification and wildcatting. Based on the .22 Hornet, itself a popular cartridge since the 1930s, the Ackley Hornet was designed to improve upon the original by increasing case capacity and operating pressure, aiming for higher velocities and improved performance. Ackley achieved this by straightening the case walls and reducing the amount of taper, then used a sharper shoulder angle. This not only created a more efficient powder burn but also allowed shooters to extract greater velocity from similar bullet weights, offering reloaders an attractive upgrade over the parent .22 Hornet.

In modern applications, the .22 Ackley Hornet is highly appreciated among small game hunters and varmint shooters. The increased velocity from Ackley’s design allows for flatter trajectories and enhanced accuracy compared to the standard Hornet, making it ideal for use in rural and open environments where precise shot placement is critical. Reloaders have found this cartridge a favorite for tailoring loads that maximize performance specific to their rifle and shooting style. Thanks to its efficient design, the .22 Ackley Hornet provides a significant performance boost while maintaining the manageable recoil and relatively low noise signature that made the original Hornet so popular with both new and experienced shooters.

Target species for the .22 Ackley Hornet primarily include varmints and small predators such as groundhogs, prairie dogs, foxes, and coyotes. The flat trajectory and improved energy transfer compared to its parent cartridge make it lethal at moderate distances, often out to around 200 yards depending on rifle and conditions. This makes it an exceptional choice for pest control and fur harvesting, especially in areas where larger, noisier cartridges might not be desired. Additionally, the efficient use of powder and bullets in the Ackley Hornet helps keep shooting economical for high-volume varmint hunters.

Typical bullet weights for the .22 Ackley Hornet range between 35 and 45 grains, with the 40-grain projectile being especially popular due to its excellent balance of velocity and ballistic coefficient. These bullets allow reloaders to achieve muzzle velocities in the realm of 2,800 to 3,100 feet per second, depending on barrel length and powder choice, representing a significant jump over standard .22 Hornet performance. Brass is commonly formed from standard .22 Hornet cases, making it readily accessible to most reloaders, and the cartridge's modest powder requirement means it’s both economical and easy on barrels. All of these characteristics combine to make the .22 Ackley Hornet an enduring favorite among reloaders who seek high performance and versatility from a classic small-bore cartridge design.