Feb 25, 2018 #1 G. Greg Duerr Well-Known Member. 1; 2; Next. .280 Ackley Improved, Bullet 162gr Hornady ELD-X, Brass Hornady | Nosler, Muzzle Velocity* 2970fps, Ballistic Coefficient G1/G7 .670/.338, COAL 3.330″. Next Last. It is also a better cross over for mountain elk. The ballistic performances based off five grain types for velocity are 3,112 ft/s (120 gr), 2,839 ft/s (140 gr), 2,825 ft/s (154 gr), 2,723 ft/s (168 gr), 2,681 ft/s (175 gr). .300 WSM vs. .280 Ackley Improved. Factory loaded, starting with Nosler, in 2007. Bullet Type Primer. I'm surprised that I see so many guys that shoot the .280 AI there must … Handgun Ammo Rifle Ammo 17 Hornet Ammo 17 Rem Fireball Ammo 17 Remington Ammo 204 … I despise the 7mm Mag., having no confidence in its ability to deliver kill through shock. Nosler BT Ammunition 280 Ackley Improved 140 Grain Ballistic Tip Box of 20 Product Family #: 1019860449; … .280 Ackley Improved - Manufacturer Loading Data. I will be shooting a Shilen barrel, 27" long with a 1-8 twist. Originally cases were fire-formed by shooing a .280 Rem. I have always wanted a .280AI but the more I research the .300 WSM the more I am … Riesel. He then changed the 35-degree shoulder to 40-degrees and the .280 Ackley Improved was born. 3.330" B allistic Tip® 0.485 B .C . STOMP442. We designed our reamer for this cartridge around the 140 grain Berger VLD Hunting bullet, and we have also seen excellent results with the tradition 140 grain Nosler Accubond. Nosler BT .280 Ackley Improved 140gr Ballistic Tip 20/Box. Gonzo - the higher the relative DA, the more stable they get. Couldn't help but want to compare to the latest 6.5 design. The Ackley Improved rounds are generally thought of by … O.A.C.L. Bill Shehane designed the case's body-taper a bit larger about .010", but didn't change the shoulder angle from the original 35 degrees. This pushes the shoulder forwards to 40 degrees and minimizes body taper. The bullet is tipped with a polycarbonate tip which rapidly drives back forcing the thin jacket to expand and fragment. Nosler BT .280 Ackley Improved 140gr Ballistic Tip 20/Box are designed for violent expansion upon impact. I have a friend who made one for long range shooting and said it wasn't worth … ALL 120 gr 130 gr 140 gr 150 gr 160 gr 162 gr 168 gr 175 gr. My Account My Orders My Address Book My Password. .280 Ackley Improved, Bullet 140gr Nosler Accubond, Brass Hornady | Nosler, Muzzle Velocity* 3140fps, Ballistic Coefficient G1 .485, COAL 3.330″. Home ; My Account. Remington changed the powder charge of the .280 factory load in 1979 and re-named the .280 Remington to the 7mm Express Remington. The .280 Ackley Improved offers a modest ballistic improvement over the .280 Remington in terms of trajectory, wind resistance, and retained energy. 280 Remington chambers can be easily converted to 280 AI. The Ackley improved is sometimes quoted as giving a 100fps gain in velocity over the standard cartridge. Jan 14, 2017 #1 Non-Lead Hunter Active member. For some reason out there, wind is always a factor as the name of the farm when we got it was " Windy Hill Farms". Go. 107 SW Columbia St | Bend, Oregon, USA 97702 | Toll Free: 1-800-285-3701 | catalog@nosler.com Joined Sep 8, 2016 Messages 130. FAQs; Categories. Go. Mag. Produces a ballistic trajectory chart and table that shows the drop, velocity, kinetic energy, windage, and trajectory of a bullet. But I have this 700 Ti that I put a factory mountain rifle barrel in 280 that had been punched Ackley. Bit of an oddball, ” Ryan Callaghan said 280 Remington chambers can be easily converted to 280 AI over! Is sometimes quoted as giving a 100fps gain in velocity over the.280 Rem offered. Of the.280 Ackley Improved, an Improved version of the vaunted 7mm Remington Mag, with 30 % propellant. 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