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Parker Otto Ackley (May 25, 1903 – August 23, 1989) [1] was an American gunsmith, barrel maker, author, columnist, and wildcat cartridge developer. The Ackley Improved family of wildcat cartridges are designed to be easily made by rechambering existing firearms, and fireforming the ammunition to decrease body taper and increase shoulder angle, resulting in a higher case capacity.
The .280 Ackley Improved (.280 AI) was the result of the .280 Remington case modification by P.O Ackley, who pushed out the sidewalls at the shoulder to near parallel and steepened the shoulder angle to 40 degrees in order to increase powder capacity, thus along with increasing the allowable pressure, resulted in increasing the bullet initial velocity by approximately 100 fps.
P.O. Ackley was a notable gunsmith famous for developing wildcat cartridges from parent cartridges like the 30-06 Springfield. For many of the wildcats listed above, and several of standardized commercial chamberings based on the 30-06 cartridge, there are "Ackley Improved" versions with sharper shoulders increasing case capacity. [25]
For many years, the small Wyoming manufacturer Freedom Arms was the only substantial maker of guns for the cartridge. In the mid-1990s, two major manufacturers, Ruger and Taurus, started selling guns chambered in .454 Casull because it was popular due to its extreme power. It was finally commercialized in 1997 when SAAMI published its first ...
The Martin B. Retting gun store was grandfathered in when Culver City banned firearm dealers near schools, and it could have transferred those rights to a new owner. (Francine Orr / Los Angeles Times)
Guns & Ammo was founded by Robert E. Petersen in 1958 and has featured famed gunwriters such as P.O. Ackley, Craig Boddington, Jeff Cooper, Garry James, Bill Jordan, Elmer Keith, Bob Milek, Patrick Sweeney, Col. Townsend Whelen and John Wooters. [5]
New Jersey's attorney general sued three firearms dealers Tuesday, alleging one illegally stored firearms that were visible from outside a store and that the two others tried to sell “ghost guns
The .219 Zipper is the parent case of the .219 Donaldson Wasp, and P.O. Ackley created the .219 Zipper Improved in 1937. Leslie Lindahl's Chucker and Super-chucker and "wildcat" case modifications by Hervey Lovell, Lysle Kilbourne, and W. F. Vickery offered similarly superior ballistics in stronger single-shot and bolt actions. [1]
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