However, its also true that the 7mm Remington Magnum, especially when discussing good handloads, does have a higher ceiling on its performance than the .280 Ackley Improved. To set the stage for this cartridge description, you should know that it is but one of more than a dozen commercially loaded 7mm cartridges now on the market that fire .284-inch diameter (28-caliber) bullets. .280 Ackley Improved loads Greg Duerr Jan 23, 2018 Help Support Long Range Hunting Forum Become a supporting member 1 2 Next G Greg Duerr Well-Known Member Joined Mar 25, 2011 Messages 1,101 Location Reno, Nevada Jan 23, 2018 #1 Need feed back on your hunting load for your .280 AI what bullet and powder that gives you the best out of your rifle While the .280AI is an efficient cartridge; however, its not magic. Wind deflection at 400 yards would be about 8.5 inches. . 280 Ackley Improved Vs. 280 Remington [ edit] Loaded with a 150 grain bullet, the .280 AI shot from a 24" barrel gives a muzzle velocity of approximately 3,060 fps, which is about 100 fps faster than a .280 Remington loaded with a bullet of similar weight. Drive Nosler's 150-grain AccuBond Long Range bullet 3,050 fps in a 10 mph wind, zero it for maximum-point-blank-range (10-inch target,) and with a dead-center aim your bullets should stay within that target out to 376 yards. Though dimensionally identical to (and thus completely interchangeable with) the original .280 Remington, Remington claimed the new 7mm Express loads had a tiny velocity advantage over the original .280 Remington factory loads when using the same weight bullet. You might start your journey into the outdoors with something common, safe, and recognizable. Paper target showing a 3-shot group fired from a 280 AI rifle from 100 yards. 5.0. Developed by P.O. I hit the Cape buffalo squarely in the chest with a .375 Holland & Holland, a cartridge the size of a banana. .280 Ackley Improved 280 Ackley Improved 280 Ackley Improved Load Development Packs - Nosler Brass. In a pinch (read lost luggage), .280 Rem. Muzzle energy is about 3,400 ft-lbs. Ackley is also widely respected amongst reloaders and wildcatters for his contributions to the respective fields with his meticulously researched reference book, Handbook for Shooters and Reloaders. Mag.? Are you sensitive to recoil? 270 vs 308 WIN: WHICH ONE SHOULD YOU HUNT WITH? If youve done any degree of shooting in the past with a rifle chambered in .17, you can thank Ackley for his foundational work on the caliber. Decades ahead of his time in cartridge design, Ackley became a household name for his work, at least among cartridge enthusiasts. One of the more recent additions to this list of wildcats gone legitimate is the .280 Ackley Improved. However, the published data is provided from a .280 AI tested with a 26" barrel rifle, while the .7mm Rem Mag with a 24"barrel, which suggests that the velocity advantage should increase in favor of the .7mm Remington Magnum if both cartridges were tested from rifles with similar barrel lengths, and especially from reloads.[5]. The ballistics and accuracy are impressive. It was intact and weighed nearly 100 percent. Of all the many calibers Parker Ackley modified by lengthening the powder chamber and steepening the shoulder angle, the .280 Ackley is the only one, so far, that has been adopted by SAAMI. Basically, it can hold more powder and thus can shoot the same weight bullet a little bit faster. While on the subject of velocity, allow me to point out that the .280 AI really deserves a 24-inch barrel. As you can see, the .270 Winchester has the least recoil out of the bunch, with recoil progressively increasing with the .280 Remington, .280 Ackley Improved, and 7mm Remington Magnum. Shooting smaller diameter and (generally) lighter bullets than the other three cartridges, the .270 Winchester has a very flat (though not the flattest) trajectory and the least recoil of the bunch, but also carries the least energy downrange and is the most vulnerable to wind drift. The author's custom-made .280 Ackley Improved was built on the CZ-550 action, fitted with a Montana Rifleman barrel and decked out with a nice, heavy piece of English walnut. Joseph Von Benedikt visits with Aaron Oelger from Hodgdon about the unprecedented demand on the shooting supply industry. Like many calibers, the .280 Ackley Improved (AI) is underrated only by those who have never used it. $1,077.38. So, Remington renamed the cartridge AGAIN after a few years and went back to the .280 Remington, which is what its called today. In addition to all being excellent choices for deer sized game, these cartridges are also suitable for bigger creatures under the right circumstances. If you have a rifling twist thats fast enough, the .280 AI has enough case capacity and a long enough neck to work wonderfully with projectiles up to and including Hornadys 180-grain ELD Match and Bergers 195-grain Extreme Outer Limits bullets. Had it been available in .280Rem I would have got that instead but it wasnt/isnt. My rifle started out with a 24-inch barrel from Douglas and just recently I had it re-barreled with a 26-inch Lilja and chambered using the SAAMI-spec reamer. With regards to bullet weight, the majority of .270 Winchester factory loads shoot bullets in the 120-150 grain range. However, that comes at the expense of a little more recoil than the .270 Winchester. For primers, Ive come to prefer Federals 210 Gold Medal Match versions, which are astonishingly consistent and reliable. While the 300 Blackout has enjoyed broad appeal across a wide range of hunters and shooters, the .338 Federal is designed for one specific application: mountain hunting. Even so, the .280 Ackley Improved is not as fast as the 7mm Remington Magnum, as a few of that cartridge's avid supporters would have us believe. However, the cartridge shoots larger diameter bullets that are generally heavier. The cartridge uses the same case as the venerable old .308 Win., but necks it up to accept a .338-caliber projectile. The rifle is so accurate and the round so effective that I have rarely needed more than one shot per animal. Its followed closely by the .280 Ackley Improved and there is a slightly larger gap between the .280 AI and the .280 Remington. Many consider the .270 Winchester to be on the light side for elk andmoose hunting, but especially when using heavy, premium quality bullets (like the Nosler Partition), its absolutely capable of getting the job done. All will certainly work to one degree or another. Unfortunately, the recent black bear attack in northern New Jersey and the first fatal bear attack in about 150 years is an example of what happens when people panic and run scared. This is because it takes an additional 3.5 grains of powder to produce that additional 50fps of velocity. Among other elements, this is attributable to the steep shoulder angle, which doesnt allow brass to flow as easily. This caliber was developed in the early 2010s for military applications. Long Range Hunting & Shooting .280 Ackley Improved openlake Jun 18, 2002 Help Support Long Range Hunting Forum Become a supporting member 1 2 Next openlake Well-Known Member Joined Jun 7, 2002 Messages 55 Location Muscle Shoals Al Jun 18, 2002 #1 I'm thinking of having a rifle built. As you can imagine though, the name change resulted in a lot of confusion between the 7mm Express and the 7mm Rem Mag, which are NOT interchangeable. Mag. This was an incredibly high velocity for the 1920s and was a tremendous speed improvement over the .30-06 Springfield, which was itself considered a very high velocity cartridge for the day. However, there are some important differences that set them apart from each other. Just why did the .280 Ackley Improved stick? 1 Hornady Lock-N-Load Straight OAL Gauge $ 36.99. A .284 bore comfortably pushes bullets of 140 to 180 grains. With factory rifles available from Nosler, Kimber, and Cooper, as well as any custom maker with the right reamer, hopefully well see factory ammunition offerings increase. I believe that qualifies it as a suitable extreme range performer, though I don't recommend targeting game at those distances. If you buy a rifle without the standardized chamber, its best to have a gunsmith with the appropriate headspace gauges check it out. Indeed, the .280 Ackley Improved (280 AI) is one of the newest SAAMI standardized rifle cartridges on the block. Fortunately, there are plenty of options. Oddly, I think the modest velocity is one reason that particular bullet performs so well in the .280 AIits not going quite fast enough to grenade on impact up close. I've also had superb results with Berger's 168-grain VLD Hunting. As you can see, the .280 Remington and .270 Winchester are identical up to the shoulder and have the same 17.5 degree shoulder angle, but the shoulder of the .280 Remington is moved slightly forward. Id wager that the .270 Winchester is a little more commonly used than the 7mm Rem Mag. Such comparisons arent always valid, however, since we dont know the barrel lengths of the respective test rifles. Walk into your local gun store, and youll see what I mean. $1,165.00 $1,049.99. For whatever reason, the Ackley landed in a sweet spot for me. Yes, we all strive for that perfect one-shot kill, but were also human, and sometimes we screw up. The primary difference between the standard .280 Rem. Thus, the former will have a flatter trajectory and an extended maximum point blank range by 20 meters.[4]. Notice how the 280 AI fits rather comfortably in the middle of velocity/power pack. However, the .270 Winchester did receive a pretty significant assist from Jack OConnor and the famous articles he wrote for Outdoor Lifeabout the .270 over the years. pushes that same bullet at 3,248 fpsboth out of 24-inch Wiseman barrels. Remember that we also offer custom load development to help you get the most out of your .280 Ackley Improved - call 1-800-303-1304 for more information. Improved Military Rifle IMR 4320. Ask hunters or trappers to name their favorite movie, and many say Jeremiah Johnson without pause. Mag. Savage 110 Hunter .280 Ackley Improved Bolt Action. This means I will earn a small commission (at no extra cost to you) if you make a purchase. Maximum pressure obtained from SAAMI (p23 and 28). This very likely hampered adoption of the cartridge to a certain degree. However, even though the cartridge closely approaches the overall performance of the 7mm Remington Magnum, the .280 AI still has somewhat less recoil since it requires less powder to achieve a similar level of performance. In both cases, the .270 Winchester has a slightly flatter trajectory, but the .280 Remington has a tiny bit more kinetic energy at all ranges (about 5-10% at 500 yards). Ever since, the .280 Ackley Improved has earned great popularity in the US market. I picked up a kimber hunter 84l in 280 ackley this summer and am finally getting around to load development. The Big Game Hunting Blog is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, Amazon.co.uk, Amazon.ca, Amazon.com.au, and other Amazon stores worldwide. Ive taken several whitetail deer with rifles chambered in .300 Blackout. Not surprisingly, the .270 Winchester and .280 Remington have very similar case capacities while the .280 AI can hold a little more powder because of its less tapered case and steeper 40 degree shoulder. However, way out there, it absolutely trounces the .30-06, thanks to the far better aerodynamics of the 7mm bullets. And this is all with virtually the same ballistics as a 7mm. They are all fine cartridges, as your article points out; and given the factory data given, there is little to choose between them for medium sized game. Joseph Von Benedikt shows his custom 500 and how well it shoots. In the real world, the .338 Federal shines when pursuing larger animals at moderate distances, according to the New Zealand ballistics company Terminal Ballistics Research. Of the two, the .280 Ackley Improved has a little less recoil, but ammo is easier to find for the 7mm Mag. For a decade or more, the .280 AI has been my favorite all-around cartridge for big game in the West. Modern long-range 7mm projectiles typically have really high BCsso high, in fact, that manufacturers have to get extreme in the 6.5mm and .30-caliber bullet lines just to come close. ammo can be used. Just for reference, the .280 AI will shoot a light 140-grain bullet about 300 fps faster than the .270 Winchester can. Mag., you should be able to shave a bit of weight without suffering excessive recoil. Nosler offered factory-loaded ammunition and reloading components. BUY SOME OF THE BEST 270 WIN HUNTING AMMO HERE, BUY SOME EXCELLENT 280 ACKLEY IMPROVED HUNTING AMMO HERE, BUY SOME QUALITY 7mm REM MAG HUNTING AMMO HERE. Indeed, the .280 Ackley Improved (280 AI) is one of the newest SAAMI standardized rifle cartridges on the block. Rounds Per Box: 20 $ 95.99 Add to wishlist Read more Out of Stock: Notify Me 280 Ackley Improved .280 ACKLEY IMPROVED 162 GRAIN Hornady ELD-X~100% HAND-LOADED!! .280 Ackley Improved Like many calibers, the .280 Ackley Improved (AI) is underrated only by those who have never used it. Walther's new Performance Duty Pistol is ready for both concealed carry and conventional service situations. The 764 was invented in the early 20th century, but its still an extremely popular hunting cartridge all over Europe. Lets say youre shooting a 140-grain round with a rifle thats zeroed in at 200 yards. The result was the .270 Winchester cartridge, which they released in 1925 with the Winchester Model 54 rifle. Sign up with your email address to receive news and updates. actually preceded it by 18 years. See also [ edit] 7mm Weatherby Magnum Mag. Remington made a massive splash in 1962 when they rolled out their new Remington Model 700 rifle along with the brand new 7mm Remington Magnum cartridge. Ackley, was very well known for developing wildcat cartridges in the latter half of the 20th Century. Instead of using the much more commonly used .284/7mm bullets like the 7mm Mauser (and many newer cartridges like the 7mm-08), for reasons that arent clear today, the .270 Winchester used .277 bullets. 10mm Firepower: Springfield XD-M Elite 3.8 Compact Pistol Review, SIG Sauer P365 Pistol Now Offered in .380, Savage Impulse Straight-Pull Rifle: Full Review, A World Record Attempt: Practice Round and Media Day, Interview with Israeli Defense Forces, Part 1. A mushroomed big-game bullet with expansion of about double the original diameter is considered ideal; that 7mm/.284-diameter bullet measures 0.568 inch across, with a surface area of over 1.01 square inches. However, it was Nosler who, in 2007, brought the cartridge to SAAMI for approval and commercial production. helps improve accuracy by providing an efficient propellant chamber and a precise chamber-to-case fit. They got lucky with the 7mm Rem mag. Make sure to watch till the end. Make sure you follow The Big Game Hunting Blog onFacebook,Instagram,Twitter, andYouTube. Peak trajectory would be 4.96-inches above point-of-aim at 175 yards. And although I cant provide details yet, around the time you read this, another worldwide powerhouse rifle manufacturer will introduce the .280 AI across the spectrum of its hunting rifles. Those bullets are much more resistant to wind drift and retain much more energy as they travel down range. While all four are pretty commonly available, the .270 Winchester and the 7mm Remington Magnum are by far the most popular out of the bunch. is One Gun To Rule Them All. If you are a handloader, both the .280 Remington and (especially) the .280 AI have outstanding potential. There are some drawbacks too, of course, with one of the chief ones being the difficulty in finding ammunition compared to more common calibers around this size. The story of the .280 Ackley Improved starts in year X with Parker O. Ackley wildcatter extraordinaire tinkering with the .280 Remington. Data shown in the sixth edition of the Nosler . Since it uses a larger diameter case derived from the .375 H&H, the 7mm Magnum has a very large powder capacity and is capable of shooting the same weight bullet faster than the .30-06. With a completely different lineage than the other three cartridges, the 7mm Remington Magnum has a unique look as well. Conveniently, the .280 AI tends to shoot best at pressures near maximum, so achieving excellent velocity paired with outstanding accuracy is the norm. Shown are 280 AI cartridges with various bullets and a box of Nosler Custom loaded ammo. Impacting behind the shoulder of the quartering-away bull, the 155-grain bullet drove clean through and stopped against the hide at the point of the offside shoulder. For this reason, the .280 AI is best suited for handloading. The rather quick transition from straight cartridge wall to blunt shoulder does suggest potential hang ups on some rifle feed ramps, but I sure haven't experienced this on my Rifles, Inc., which is based on a Remington 700 long action. Currently, I cant find the ammunition anywhere online. Mag., 150-grain bullet, 3,248 fps: 29.16 f-p recoil energy, 16.37 fps recoil velocity. Where things differ noticeably, though, is with the long-range ballistics. This original 7mm gave rise to the 30-06 and all subsequent cartridges based on it, but it also inspired a lot of other 7mm rounds. No other movie makes them fantasize quite as much about the Old West and mountain men, and wonder if they could have cut it in the early to mid-1800s. The results are also about what youd expect for the Hornady Precision hunter loads for those three cartridges. Ideally, something in the 1:8 range. Most hunters and shooters in North America are probably familiar with the venerable .270 Winchester and 7mm Remington Magnum cartridges. Handloading the 280 AI is straightforward and easy with a wide variety of medium- to slow-burning powders, but this isnt a handloading-only cartridge these days. Though only a few cartridges (like the 270 WSM, .270 Weatherby, and 6.8 Remington SPC) use .277 bullets, the fact that the .270 itself is so popular means theres also a decent amount of quality bullets to choose from for that cartridge as well. Although the .280 Remington is considered to be a very balanced cartridge combining the best attributes of both cartridiges due to the high ballistic coefficient and sectional density, characteristic of 7mm calibers, it did not reach the popularity achieved by the .30-06 and .270 Win. Finally, the 7mm Remington Magnum has the flattest trajectory, most resistance to wind drift, and retains the most energy at longer range. and uses 10 to 15 percent less powder to do so. If youre interested in doing so, its also possible for a skilled gunsmith to convert a rifle in .280 Remington over to the .280 Ackley Improved chambering with a chamber reamer. 280 Ackley Improved Vs. 7mm Remington Magnum, Last edited on 14 February 2023, at 22:32, ".280 Ackley Improved: A Celebrated History", https://en.wikipedia.org/w/index.php?title=.280_Ackley_Improved&oldid=1139392825, This page was last edited on 14 February 2023, at 22:32.
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