P.O. Ackley
✓ Source-basedrisingGunsmith, author and columnist (1903-1989)
United StatesLived 1903 to 1989 · aged 86Parker Otto Ackley was an American gunsmith, barrel maker, author, columnist, and wildcat cartridge developer.
Photos 4
.280 Remington and its Ackley Improved variant
.30-30 Ackley Improved (Left) .30-30 Winchester (Right)
A .243 Winchester (right) beside the Ackley Improved version; only the shoulder angle is changed to the sharper shoulder angle typical of the Ackley Improved cartridges. In this instance the shoulder diameter of the Improved normally remains the same as the original case at .456"-.457" with no significant change in body taper. However, minor variations exist with some drawings showing a slightly larger .460" shoulder diameter.About this person
Parker Otto Ackley 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. Ackley improved not only standard cartridges, but also other popular wildcats, and was the first to create a .17 caliber (4.5 mm) centerfire cartridge.
United StatesFame.am measures public visibility signals. It does not measure human value, talent, morality, or credibility.