It is important to note that the SAAMI-spec .280 Ackley Improved is dimensionally different than most of the wildcat versions and may not be interchangeable depending on when and how the rifle was chambered. The .280 AI was developed by modifying the case from the .280 Remington. I just had a .280 AI built on a Winchester Model 70 controlled round feed action, very similar to the MRC rifle you are thinking about getting. The .280 Ackley has a similar velocity to the 7mm Rem Mag, when using light to mid-weight bullets. The bull was into the scrub oak before I could shoot again. The bullet had taken the arteries off the top of his heart and passed through both lungs, putting him down in just a few seconds. Mild-mannered but wicked, the .280 Ackley Improved is a virtuoso of a cartridge. The .280 Ackley has a similar velocity to the 7mm Rem Mag, when using light to mid-weight bullets. Powders legendary in the .280 Ackley Improved are Reloder 22 and H4831. I love that thing and am a huge fan of the .280 AI and the .280 Remington. I AM CONSIDERING BUYING A NEW RIFLE IN A 280 Ackley IMPROVED. Long live P.O. I still want to try out a 284 shehane and will make the final choice based on brass life and accuracy. Cartridges improved by Ackley, are known as Ackley Improved (sometimes designated by only the word Ackley or Improved). ©2020 Outdoor Sportsman Group. We originally meant to have this another project we are working on. .280 Ackley Improved powders Hey guys. our tests. Handloading Hints Even though there are at least eight different factory loads on the market nowâfrom Hornady, Federal, and Noslerâas always handloaders can fine-tune accuracy and can often bump up velocity with carefully crafted handloads. We ping steel with a .300 WinMag at over a mile. Though Ackley tried at one point or another an improved version of almost every cartridge available in his day, only a few gave performance worth performing surgery on your favorite rifle for. I use and appreciate magnums, but I don't love them. Because the .280 AI has less muzzle blast, less recoil, and more rounds snugged into that box magazine, for starters. We look at the futuristic .450 Bushmaster and how it compares to the tried and true .45-70. brass after it was fire formed. Neither the author nor InterMedia Outdoors, Inc. assumes any liability for accidents or injury resulting from the use or misuse of this data. And I had the time to run some mental calculations to confirm that the 150-grain TTSX bullet would still be traveling at or above 1,900 fps upon impact, giving it the needed velocity to expand properly for a clean kill. I love the .30-06 Gov't. Justin Ludwig Photo. decapping the cases by using a Wilson decapping set. When chambered in a fine rifle like this Nesika Hunter Model V, the .280 Ackley Improved cartridge is highly accurate, mild mannered, and a virtual death ray in the field. Looking at switching to Vihatvouri powder for use with 160 - 168gr projectiles. The .280 Ackley Improved casing will launch a 7mm, 120 gr. Best of all, the load is accurate. The .280 Ackley Improved provides honest magnum performance with every advantage of a standard cartridge. I worked my way into a good rest involving a small scrub oak, an Under Armor glove, and a lot of snow. We had to use the 7x57 Ackley die They performed well in the author's Nesika rifle, but Reloder 19 gave spectacular results with the 150-grain Barnes TTSX. Also, almost any existing .280 Rem. Elk CountrySeveral days later found me in the Colorado snow, hiking up a very steep canyonside with my friend Justin Ludwig. P.O. Fred Huntington had done an earlier version with a 35-degree shoulder, but it is the Ackley version which has been adopted by SAAMI ( Nosler submitted the design for approval), and may be the best of P.O. Ackley's earliest wildcats was the 7mm-06 Improved, which was made by necking down the .30-06 Springfield case and fire-forming it to have less body taper and a 40-degree shoulder angle. If you study ballistic charts, that's almost precisely the velocity attributed to the same-weight projectile in the 7mm Rem. 2016 8:46 am and how it compares to the 7mm Rem the 150-grain Barnes bullet... ) is one of the 280 A.I., reader D. Hankins asked how he might improve accuracy his... Or misuse of this data thing and am a huge fan of the Rem... Accomplish the same parent case ( 30/06 ) as the 270 Win, Rem. ItâThe.280 Remington data was developed in a pinch ( read lost )... 300 yards is just as challenging as shooting a.22 LR rifle at 300 yards is just challenging! 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