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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.
In using autopistols for hunting or competitive shooting, improved feeding of softnose or hollowpoint bullets is also an issue; the bottlenecked .45/38, for instance, was created because the straight-cased .45 ACP had trouble feeding hollow points. [4] Wildcat cartridges are generally developed because:
[citation needed] The .348 is also the basis for the .348 Ackley Improved, The .348 Ackley improved has about a 200 fps advantage over the standard pushing the 200 grain FTX bullet at 2800 feet a second with some of the new hybrid powders.
Since cases for the .280 RCBS could be formed by firing .280 Remington ammo in a rifle chambered for the former, Ackley abandoned the 7mm-06 Improved and started chambering rifles for the .280 RCBS. He then changed the 35-degree shoulder to 40-degrees and the .280 Ackley wildcat was born.
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Additionally, since Diamond and Pearl, moves that deal damage are classified as either physical or special according to which stats of the attacking and defending Pokémon they use to calculate damage. The moves that one Pokémon may learn are different from another depending on the species of Pokémon; even those that evolve from others do not ...
Pokémon Sun and Moon introduced further changes, such as the introduction of the "Z-Move" mechanic, which allows Pokémon to use powerful, one-time use moves that can either increase a Pokémon's stats or unleash a powerful attack. [24] The unpredictability of when these moves would be used led to them being unpopular in the competitive ...