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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 Europe the .280 Remington is not popular in bolt-action rifles since it competes directly with the 7×64mm, which is of the almost exact same size as the .280 Remington but has slightly more power, because of having a slightly higher maximum allowed chamber pressure and a slightly higher case capacity. The twist rate for the 7x64 is 1 in 8. ...
The commercial .280 Remington (or 7mm Express Remington) is very similar, but uses the slightly longer 65 mm 30-03 case with the shoulder headspace extended slightly more than one millimeter (.05 inch) to prevent chambering in .270 Winchester rifles. [17]
.22 BR Remington.22 Eargesplitten Loudenboomer.22 PPC.22 Remington Jet.22 Spitfire.22 WCF.220 Russian.220 Rook.220 Swift.221 Remington Fireball.22 Nosler.22-250 Remington.222 Remington.222 Remington Magnum.222 Rimmed.223 Remington.223 Winchester Super Short Magnum.224 Voboril.224 Boz.224 Weatherby Magnum.224 Valkyrie.225 Winchester.297/230 Morris
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.
A Remington Model 870 shotgun. Below is a list of firearms produced by the Remington Arms Company, [1] founded in 1816 as E. Remington and Sons. Following the breakup of Remington Outdoor Company in 2020, the Remington Firearms brand name operates under RemArms, LLC.
On Monday night's episode of "Antiques Roadshow," a very special portrait painted by American artist and sculptor Frederic Remington was given a price tag even the owner couldn't believe. "This ...
6.5mm Remington; 6.5×55mm; 6.5 PRC; 6.5-284 Norma; 6.5 Creedmoor - In Current Production as of 2024.264 Winchester Magnum.270 Winchester - In Current Production as of 2024.270 Weatherby Magnum.275 Rigby - In Current Production as of 2024; 7×57mm; 7mm-08; 7mm PRC; 7mm Remington Magnum; 7mm STW (Shooting Times Westerner).280 Remington.280 AI; 7 ...