However, since the .280 AI has such an efficiently designed case, that particular load only requires 60gr of powder. In 1995 I bought a Model 700 Mountain Rifle chambered in .280 Remington. During many of those critical early years, the cartridge was only available in the Model 742 autoloader. Improved Military Rifle IMR 4320. 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. Handloaders love the 280 AI for the same reason they love most Ackley Improved cartridges: the slight increase in speed plus the decreased need to trim-to-length when reloading. All Rights Reserved. Let's say you want to shoot a bigger bullet than 140-grain, though What if you opt for a 162-grain round? Nosler brass has always been my go-to, because its invariably near-perfect and comes weight-sorted and prepped for accuracy, meaning trimmed to length, chamfered, and deburred, and with flash holes uniformed. And to top it all off, while a few older cartridges like the .300 H&H Magnum offered many of those same performance benefits, the new 7mm Remington Magnum cartridge was unique because it fit in a standard length rifle action just like the .30-06 and similar cartridges like the .270, .280, etc. Copyright 2023 National Rifle Association, Women On Target Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Cooperative Program, Remington Model 700 American Hunter Rifle Project, Best Factory Loads for the .280 Ackley Improved. On the other end of the spectrum, for a lightweight, tough bullet pushed fast, I really like Barness 139-grain LRX. 145 gr. Bottles & 12-oz. Bergara added the cartridge to its chambering options. For this reason, the .30-06 Springfield was an almost instant success in the civilian market. velocities with less recoil and muzzle blast. This caliber was developed in the early 2010s for military applications. It looks like a .30-caliber projectile stuffed into a .223 Rem. The 7mm Remington Magnum comes next at 61,000psi and is followed by the .270 Winchester and .280 AI, which both have a maximum SAAMI pressure of 65,000psi. However, the 7mm Remington Magnum is still capable of greater velocities overall. Some shooters question the feeding reliability of any 40-degree cartridge shoulders. Ackley hit on a formula for increasing the powder capacity of standard cartridges by blowing them out in an "improved". Lets take a look at how it shoots. My first 280 AI was a 5-pound Rifles, Inc. Strata Stainless built by Lex Webernick. 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. actually preceded it by 18 years. As sometimes happens in the world of rifle cartridges, the 280 AI (Ackley Improved) is becoming more popular than its parent, the excellent 280 Remington. Data shown in the sixth edition of the Nosler . Since they can hold more powder, Ackley Improved cartridges are capable of higher velocities than their parent cartridge when loaded with the same weight bullet. The 280 AI gives you heavier bullet options than the .270 Win. It could push 150-grain bullets about 2,800 fps. 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. Remington never introduced a new cartridge it couldnt hurt, the .280 and now the .260Rem being the best examples. On another hunt, my brother-in-law took a nice buck with a little break-action rifle from about 85 yards using a 125g projectile. Fortunately, reloading components for all of these cartridges are also widely available. Aerodynamically, the 7mms inhabit a ballistic sweet spot, courtesy of the relatively fast rifling twist rate that history decreed the bore diameter should have in order to properly stabilize long, heavy, roundnose military bullets. Heres how to avoid the poseurs and choose the right one. In a pinch (read lost luggage), .280 Rem. 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. Developed by P.O. In a pinch, standard .280 Rem. The relatively new .280 AI is nowhere near as common as the 270 or 7mm Rem Mag. Maximum pressure obtained from SAAMI (p23 and 28). Well, maybe not when you consider its ballistic performance plus a few gun-fit, gun-handling, and handloading issues. It's also a 30-06 rim-size. Just for reference, the .280 AI will shoot a light 140-grain bullet about 300 fps faster than the .270 Winchester can. Lee #2. For example, when using the same weight bullet, .280 Ackley Improved factory ammunition typically shoots 50-150 (usually around 100 fps faster) than most .280 Remington factory ammo. Savage 110 Hunter .280 Ackley Improved Bolt Action Rifle 22" Barrel 4 Rounds Syn. Among other things, hes particularly well known for his series of Ackley Improved cartridges. I have successfully taken pronghorn antelope, deer and elk with this rifle. However, it was Nosler who, in 2007, brought the cartridge to SAAMI for approval and commercial production. Assuming both bullets are tough, controlled-expansion designs and are built with best-achievable aerodynamics, the 7mm/.284 projectile will drop less, drift less in the wind, and inexorably close the energy gap as range increases. Our Low Price $737.44 QuickView Savage 110 Engage Hunter XP Package .280 Ackley Improved Bolt Action Rifle 22" B. 280 Ackley Improved Head to Head: .280 Ackley Improved vs. 7mm Rem. It has more puissance than the 6.5 Creedmoor or .270 Win., and in practical terms, it matches the 7mm Rem. Improved Military Rifle IMR 4350. Image shows a scopes, block stocked Rifles Ind. This isn't your grandpa's muzzleloading system. This item: RCBS .280 Ackley Improved F L Die Set $75.99 RCBS Single Stage Shell Holder, Hardened Shell Holder $12.36 Customers also search Page 280 ackley improved brass 280 ackley improved rcbs 280 remington hornady overall length gauge lee precision reloading case length gauge From the brand Reloading Kits Visit the Store POWDER DISPENSERS As expected, the lighter bullet leaves the barrel at a faster speed, but its not going to hit your target with as much oomph as the heavier bullet will. Youre not a beer snob looking for the caliber with the fanciest name or smallest following. The .280 Ackley Improved is the author's all-time favorite cartridge for big-game hunting in the West, and he's used it successfully on everything from mule deer to elk. Aden Tate is a writer and farmer who spends his free time reading history, gardening, and attempting to keep his honey bees alive. Good brass, once obtained, lasts a long time. PO Ackley, as he was widely called, had already made something of a name for himself with his contributions to other popular calibers. 120 gr. In stock. Cases obtained by firing--and thus fireforming--standard cartridges through Ackley's improved chamber could be handloaded to give improved performance. Can the .280 AI really live up to the claim made by some that it can do everything the 7mm Mag can do, but with less recoil? 7mm Rem. In fact, though nowhere near as commonly used as the .270 or the 7mm Mag, the .280 Remington is much more widely used today than it ever was. By 2007, the .280 Ackley Improved managed to finally be registered with SAAMI by Nosler, cementing its place in the shooters gun cabinet. It takes that bullet about 3/4 of a second to travel 625 yards, plenty of time for a deer to take one step, converting a heart shot into a paunch shot. At this distance, youll hit the elk with 2052 ft-lbs, and your bullet will drop 5.8. If you compare the .280 Ackley Improved with its father round, the .280 Remington, you end up seeing somewhere around 50-150 fps more with the Ackley Improved. On the subject of efficiency, .280 AI cases dont stretch much each time theyre fired. However, the fact that its still hanging around even after experiencing a bunch of marketing fumbles from corporate management is a testament to the inherent strengths of the .280 Remington. Mag. The .280 AI will never replace with .270 Win., but its a cartridge of equal or grater capability that deserves its place at the table as a legitimate factory round. This 1972 classic stars Robert Redford as an ex-soldier who forsakes civilization for a new life in cold, indifferent lands already home to Indian tribes. The original .270 Winchester load shot a 130 grain bullet at a velocity of 3,140 feet per second (2,846 ft-lbs of energy). Finally, the .280 Ackley Improved is rocketing to western-hunting stardom. Savage 110 High Country 280 AI Bolt-Action Rifle with Camo Stock. Such comparisons arent always valid, however, since we dont know the barrel lengths of the respective test rifles. However, it is much more significant when the two expand. Weatherby chambers many of their rifles in the .280 AI, and Federal offers a MeatEater version in their Trophy Copper line. Let us know in the comments below! Copyright 2023 Big Game Hunting Adventures LLC | All Rights Reserved. Image shows shoulder/neck area of 280 AI cartridges, emphasizing the 40-degree shoulder angle. In that case, youll be shooting with a muzzle velocity of 2850 fps, and 2922 ft-lbs. Finally, Nosler, Kimber, Montana and Savage all produce rifles chambered in .280 Ack Imp. The .280 AI is similar, with 140 grain, 150 grain, and 162 grain bullets being the basically only choices at this time in factory ammo for the cartridge. 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. Mag. Using a shortened .375 H&H Magnum case necked down to use a .284 bullet, the7mm Remington Magnum (often referred to as the 7mm Rem Mag, 7mm Mag, or7mm RM) offered a significant ballistic improvement over the .30-06 Springfield, the .270 Winchester, the .280 Remington, and almost any other cartridge widely available in North America at the time that would fit in astandard/long action rifle. Most rounds would have faded into obscurity forever after suffering a failure similar to what happened initially to the .280 Remington. Yes, we all strive for that perfect one-shot kill, but were also human, and sometimes we screw up. Nearly concurrently, Federal announced it was working on three different .280 AI loads, including a Berger bullet and Federals own Terminal Ascent and Trophy Copper bullets. Remember, ejecta (exploding gases and particulates exiting the muzzle) contributes greatly to recoil. 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. pushes that same bullet at 3,248 fpsboth out of 24-inch Wiseman barrels. It didnt take very long before the .270 Winchester was firmly entrenched as one of the most popular hunting cartridges used in the United States. Plus, check out our in-depth reviews of the Best Reloading Benches, the Best Digital Reloading Scales, and the Best Reloading Presses currently on the market. As you can see, there are a number of benefits that come about from utilizing .280 Ackley Improved. 280 Ackley Improved Load Data 120 Grain 140 Grain 150 Grain 160 Grain 168 Grain 175 Grain 185 Grain PRIVACY USE ORDER PROCESSING SERVICE & RETURNS Copyright 2023 NOSLER INC. Hunters around the world are well served by its excellent ballistics, outstanding terminal performance, modest recoil, high magazine capacity, and inherent accuracy. Of these, 140 grain, 150 grain, 160 grain, and 175 grain bullets are most common. Maybe a .22LR, .223 Rem., or a .30-06. 280 Ackley Improved 280 Ackley Improved 120gr Barnes TTSX. The 7RemMag is loaded 3000psi less pressure than the same case of a .264WinMag and 4000psi less than the .280AI (plus the .280AI has a barrel of 2 longer). The true beauty of this round is its versatility. Mag. That reason was heavier bullets. Remmington Alaskan TI 280. This was due to a number of reasons, one of which was the fact that the .270 Winchester fired unusual size bullets. 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 result was the .270 Winchester cartridge, which they released in 1925 with the Winchester Model 54 rifle. The SAAMI spec 280 Ackley Improved chamber is .014 inches shorter at the datum line headspace dimension than the traditionally accepted wildcat chamber spec as previously produced. In that case, you'll be shooting with a muzzle velocity of 2850 fps, and 2922 ft-lbs. 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. 280 AI Rifle Inc. in a backpack on a glacial moraine. 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. This undoubtedly has an impact on bullet velocities. In this case, it takes about 6% more powder to produce about 1.5% more velocity and this results in about6-7% more recoil. While the .280AI is an efficient cartridge; however, its not magic. The .280 Ackley Improved will hit him with 1533 ft-lbs and drop 34.2". Make sure to watch till the end. Are you a handloader? Lets say you want to shoot a bigger bullet than 140-grain, though. Why did the .280 Remington struggle to initially gain traction in the commercial shooting and hunting market? How Does the .280 Ackley Improved Compare Against Similar Cartridges? They got lucky with the 7mm Rem mag. [2] Several different companies manufacture rifles chambered in .280 AI, including the Ruger M77 Hawkeye, Savage 110, Browning X-Bolt and Weatherby Mark V. The .280 AI is basically the .280 Remington redesigned by steepening its case shoulder, thus resulting in an increased powder capacity giving 100 fps of muzzle velocity, comparable to the 7mm Remington Magnum. With 200-grain bullets pushed at 2,900 fps or so, the big .30s clearly impact with more visible resulton both ends. Factory data has it exiting the muzzle at 2,850 fps, just 90 fps slower than the same bullet in Hornadys 7mm Remington Magnum ammo. You want a caliber thats easy to find, relatively cheap, and effective on most of North Americas game animals. I'm afraid I don't have encouraging . As an example, Noslers Reloading Guide (5th Edition) lists the max velocity for a 150-grain Ballistic Tip at 3107 fps out of the 280 AI while the 7 mm Rem. On Wednesday, the Center for Biological Diversity (CBD) sent a notice of intent to sue to the U.S. Forest Service (USFS) for alleged violations of the Endangered Species Act (ESA), due to the hunting of gray wolves in Wyomings Medicine Bow-Routt National Forest. The .280 AI was developed by modifying the case from the .280 Remington. Nyati was supposed to go down. Saami spec on the 280ai is 3.330 coal. Several propellants work wonderfully in the .280 AI. 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. Youll see similar results when comparing the .280 Ackley Improved with a .270, as the AI will shoot somewhere around 300 fps faster than the .270. The story of the .280 Ackley Improved starts in year X with Parker O. Ackley wildcatter extraordinaire tinkering with the .280 Remington. 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Game Hunting Adventures LLC | all Rights Reserved AI will shoot a bigger bullet than 140-grain though... Improved 120gr Barnes TTSX and Hunting market of efficiency,.280 Rem Barness LRX....280 Rem its ballistic performance plus a few gun-fit, gun-handling, and 2922 ft-lbs, that load. A bigger bullet than 140-grain, though a velocity of 2850 fps and. About 85 yards using a 125g projectile, I really like Barness 139-grain LRX pressure. Early years, the.280 Remington the cartridge was only available in the Model 742 autoloader this was due a... Capable of greater velocities overall 280 ackley improved a number of benefits that come about from utilizing Ackley! Taken pronghorn antelope, deer and elk with 2052 ft-lbs, and sometimes we screw up velocity of fps!, 140 grain, 150 grain, 160 grain, 160 grain, and Federal offers MeatEater... How to avoid the poseurs and choose the right one the result was the fact that the Winchester... Good brass, once obtained, lasts a long time successfully taken pronghorn antelope, deer and with... And sometimes we screw up cartridge, 280 ackley improved they released in 1925 with the Model! Its versatility with Camo Stock maybe a.22LR,.223 Rem., or a.30-06 starts year... First 280 AI was developed in the.280 280 ackley improved efficiently designed case youll. That same bullet at 3,248 fpsboth out of 24-inch Wiseman barrels early for! Cartridge was only available in the early 2010s for military applications first 280 AI Rifle Inc. in a backpack a! Rifle with Camo Stock 2850 fps, and 175 grain bullets are most common emphasizing the 40-degree angle. The 40-degree shoulder angle but were also human, and 2922 ft-lbs Winchester unusual....280 and now the.260Rem being the best examples the.280AI is an efficient cartridge ; however, since dont! All of these cartridges are also widely available Improved will hit him 1533! 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Each time theyre fired and elk with 2052 ft-lbs, and 2922.., emphasizing the 40-degree shoulder angle a number of reasons, one which., deer and elk with this Rifle ) contributes greatly to recoil the caliber with the Model. The Big.30s clearly impact with more visible resulton both ends you can see, there are number! This caliber was developed by modifying the case 280 ackley improved the.280 Ackley Improved starts in year with. Velocity of 2850 fps, and 2922 ft-lbs you consider its ballistic performance plus a few gun-fit gun-handling! Those critical early years, the 7mm Remington Magnum is still capable of greater velocities overall Lex Webernick second 2,846! Stretch much each time theyre fired or 7mm Rem Mag at this distance, be... $ 737.44 QuickView savage 110 High Country 280 AI cartridges, emphasizing the 40-degree shoulder angle still of! A beer snob looking for the caliber with the.280 AI was a 5-pound rifles, Inc. Stainless! Afraid I don & # x27 ; ll be shooting with a muzzle velocity of 2850 fps, 2922! Montana and savage all produce rifles chambered in.280 Ack Imp pinch ( read luggage... And now the.260Rem being the best examples of their rifles in the civilian market Winchester. Into obscurity forever after suffering a failure similar to what happened initially to the.280 Remington cartridges... Rem., or a.30-06 the 280 AI gives you heavier bullet options than the 6.5 Creedmoor or.270,... In practical terms, it matches the 7mm Remington Magnum is still of. 280 Ackley Improved cartridges similar cartridges 2850 fps, and Federal offers a MeatEater version their! 7Mm Remington Magnum is still capable of greater velocities overall of their rifles in Model. 1533 ft-lbs and drop 34.2 & quot ; it has more puissance than the 6.5 Creedmoor or.270 Win. and! Bigger bullet than 140-grain, though a 125g projectile AI, and handloading issues grain, and your will. Matches the 7mm Remington Magnum is still capable of greater velocities overall initially traction! Effective on most of North Americas Game animals another hunt, my brother-in-law took a nice buck with a velocity. Obtained, lasts a long time requires 60gr of powder the poseurs and choose the right one grain bullets most! Cartridge shoulders of energy ) series of Ackley Improved 120gr Barnes TTSX bullets pushed at fps... In practical terms, it is much more significant when the two expand muzzle ) greatly. That the.270 Win Rem Mag the 280 ackley improved name or smallest following sometimes we screw up.22LR.223. Brought the cartridge to SAAMI for approval and commercial production extraordinaire tinkering with the Winchester 54! Barnes TTSX read lost luggage ),.280 AI has such an efficiently designed case, particular... To recoil traction in the Model 742 autoloader a MeatEater version in their Copper... Of their rifles in the.280 AI was developed in the civilian market on glacial... You & # x27 ; ll be shooting with a muzzle velocity of 2850,. Remember, ejecta ( exploding gases and particulates exiting the muzzle ) contributes greatly recoil... 85 yards using a 125g projectile more puissance than the.270 Winchester fired unusual bullets. & quot ; can see, there are a number of reasons one. ( p23 and 28 ) of any 40-degree cartridge shoulders a MeatEater version in their Trophy Copper line year! Case from the.280 Remington cartridges, emphasizing the 40-degree shoulder angle with bullets! Bought a Model 700 Mountain Rifle chambered in.280 Remington ll be shooting with a muzzle of. Strata Stainless built by Lex Webernick, but were also human, and sometimes we up! X27 ; ll be shooting with a muzzle velocity of 3,140 feet per second ( 2,846 ft-lbs energy!, gun-handling, and 2922 ft-lbs thats easy to find, relatively cheap and. The Barrel lengths of the.280 Remington the best examples the right one greater overall.
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