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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 .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.
The .375 H&H Ackley Improved was a cartridge designed by P. O. Ackley in an effort improve on the performance and case life of the .375 H&H Magnum. The improved case follows the formulaic Ackley design of a body of little taper and steep shoulder of 40°. The cartridge was found to be capable of 2,830 ft/s (860 m/s) with a 270 gr (17 g) bullet.
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]
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.
4. Sturm, Ruger & Co. When you think of 100% American firearms, Ruger—officially known as Sturm, Ruger & Co.—immediately comes to mind. Founded in 1949 by enthusiastic gun makers in ...
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Skaggs also pointed to the Orlando shooter who killed 49 people in 2016, after charging more than $26,000 on credit cards to purchase guns and ammunition in just 12 days; and the Las Vegas, N.V ...
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