Mag., it was based on a shortened 300 H&H case. On a related note, 7mm bullets offer a bigger, more effective frontal diameter than smaller 6.5mm and 0.277 bullets. Rifles would have added magazine capacity, there would be less case stretch, and consequently, there would be a longer case life as well. Handloaded to a sizzling 3,200 fps, its flat and forgiving for shots inside a quarter-mile. A .284 bore comfortably pushes bullets of 140 to 180 grains. Nosler offers two Custom and two Trophy Grade loads for the .280 AI but thats about the extent of factory-loaded options. The primary difference between the standard .280 Rem. I'm afraid I don't have encouraging . list velocities of 2,990 fps while Noslers 140-grain Accubond Ackley Improved loads get you 3,150 fps. You can find rifles of all varieties chambered in .300 Blackout. The story of the .280 Ackley Improved starts in year X with Parker O. Ackley wildcatter extraordinaire tinkering with the .280 Remington. The 280 AI is quietly but steadily gaining converts. Just why did the .280 Ackley Improved stick? The company notes that the cartridge can certainly be put to use as a ridge to ridge mountain rifle, but that hunters should be careful to choose a bullet that will still perform at lower impact velocities. 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. The cartridge is more than capable of taking large game like elk and moose, but it can do so with less powder and less recoil than magnum cartridges like the 7mm Rem. ammo can be used. Weatherby chambers many of their rifles in the .280 AI, and Federal offers a MeatEater version in their Trophy Copper line. Mag.? Joseph VonBenedikt is with Joel Hodgdon to talk about the improved accuracy and long-range potential of the already reliable Core-Lokt ammo line. 130 grain and 150 grain bullets are by far the most common. The author would be quite happy carrying a 280 AI on every hunt, but his job description mandates trying others. Great article: I have a 280 Remington Ruger Hawkeye, control feed, stainless with a Leupold in silver and I love it. The .280 AI was developed by modifying the case from the .280 Remington. Indeed, depending on the exact barrel length of the rifles in question, the real world advantage one cartridge may have over the other may narrow considerably, disappear, or even flip in favor of the other cartridge. Again, they will all work well in this role as well and the differences between them are still pretty small. 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. Im not aware of any rifles that are currently manufactured in all four cartridges, so in the interest of making as close to an apples to apples comparison as possible, I just decided to make the comparison with a hypothetical rifle that weighs exactly the same for each cartridge. With all that in mind, its easy to see why lots of hunters and shooters in North America quickly got behind the flat shooting and hard hitting 7mm Rem Mag. Mag., 150-grain bullet, 3,248 fps: 29.16 f-p recoil energy, 16.37 fps recoil velocity. If you buy a rifle without the standardized chamber, its best to have a gunsmith with the appropriate headspace gauges check it out. Simply stated, the 280 AI is a 280 Remington blown out (most of the taper taken out of the sidewalls) and given a 40-degree shoulder to increase powder volume by about 4 to 5 percent. Fortunately, there are plenty of options. This means you have the option to read your magazine on most popular phones and tablets. And this is all with virtually the same ballistics as a 7mm. Give a Gift 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. Mag. This sharper shoulder can also increase case life, which is a good thing for the handloader. Some were reluctant to adopt the cartridge, but many American hunters eventually came to appreciate the flat shooting characteristics of the round as well as the fact that it was so effective on thin skinned game. Still, in the right environment, the .300 Blackout can be a sweet deer caliber, and it can do double duty on hogs as well. The .280 Ackley Improved is a bit of an oddball, Ryan Callaghan said. This means I will earn a small commission (at no extra cost to you) if you make a purchase. I meant, of course, a good bear tale where a grizzly or Alaska brown bear got the upper hand and chewed off the hunters scalp. 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. Its a legitimate, repeatable 0.40-MOA bullet in my Proof rifle, and even though velocity with that tuned handload is modest, at 2,870 fps, it has proven to be excellent on mule deer and elk. Both of those cartridges are very capable performers, though neither is as well known or as widely used as the .270 Winchester or 7mm Remington Magnum. Improved Military Rifle IMR 4350. Even so, no animal will never know the difference if your shot is placed in the right spot. Handloaders will find this cartridge to be pretty forgiving and simple to load. The rifle is so accurate and the round so effective that I have rarely needed more than one shot per animal. By 2007, the .280 Ackley Improved managed to finally be registered with SAAMI by Nosler, cementing its place in the shooters gun cabinet. Peak trajectory would be 4.96-inches above point-of-aim at 175 yards. I shoot federal 280 150 gn nossler. Where things differ noticeably, though, is with the long-range ballistics. Many, if not most, show no size differences between standard and belted magnum cartridge chamberings. 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. Our Low Price $737.44 QuickView Savage 110 Engage Hunter XP Package .280 Ackley Improved Bolt Action Rifle 22" B. Improved Military Rifle IMR 4064. Using a case length of 2.525 inches, the .280 Ackley Improved fits nice in a standard long-action receiver, and in spite of the steep shoulder, I have found the cartridge will feed well in most rifles. 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. With 200-grain bullets pushed at 2,900 fps or so, the big .30s clearly impact with more visible resulton both ends. Mag. The table below compares the recoil produced by the Nosler loads compared above for those cartridges when fired from a 7.5 pound rifle. 280 AI Rifle Inc. in a backpack on a glacial moraine. Mag. To fully-realize the versatility of this cartridge, youll either need to handload or be willing to purchase custom loaded ammunition. Choose medium-slow burn rate powders, such as H4831SC and Reloder 19 for light- to midweight projectiles. Recoil is significantly greater. Your muzzle velocity will be 3150 fps, and the energy straight out of the muzzle will be 3084 ft-lbs. Rifle calibers are kind of like craft beer (hear me out). This is one of the most interesting points of comparison between the 7mm Rem Mag and .280 AI though. What are your thoughts, though? Being a standard .30-06-diameter cartridge case, nearly all popular bolt-action hunting rifles will hold at least four rounds in the magazine, and many models comfortably swallow five down, plus one in the chamber. 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. The .280 Remington is currently manufactured by Browning, Remington, and Winchester in their X-Bolt, Model 700, and Model 70 rifles. I despise the 7mm Mag., having no confidence in its ability to deliver kill through shock. Mag., and cooks along about 200 fps faster than the .308 Win. helps improve accuracy by providing an efficient propellant chamber and a precise chamber-to-case fit. With a completely different lineage than the other three cartridges, the 7mm Remington Magnum has a unique look as well. 139 gr. When P.O. Currently, I cant find the ammunition anywhere online. Savage 110 Hunter .280 Ackley Improved Bolt Action. On the other hand, the .280 Remington is normally offered with 139 grain, 140 grain, or 150 grain bullets, but its possible to find a few loads with 156 grain, 160 grain, and 165 grain bullets as well. 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. 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? The introduction of the massively successful 7mm Remington Magnum in 1962 also derailed any prospects of the .280 Remington catching on to any large degree with the general hunting public. When he was tinkering with the .280 Remington, Ackley added a bit of his personal trademark: he drastically increased the shoulder angle and straightened out the taper of the body case. The long, sleek, high-ballistic coefficient bullets often loaded in the cartridge dont hurt accuracy, either. Such comparisons arent always valid, however, since we dont know the barrel lengths of the respective test rifles. Basically, it can hold more powder and thus can shoot the same weight bullet a little bit faster. The unique roots of the 7mm Remington Magnum and the shared heritage of the .270 Winchester, .280 Remington, and the .280 Ackley Improved are all obvious in the photo below. I've not conducted any scientific tests, but Ive certainly had to do less trimming of my Ackley cartridges than their factory counterparts. 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. actually preceded it by 18 years. And loaded judiciously, it will push heavy VLD-type 180-grain bullets as fast as the 7mm Remington Short Action Ultra Mag. Who knew wild turkey's were so stupid!? The same goes for the 145gr .270 Winchester vs the 150gr .280 Remington load. 150 gr. Federal Premium TROPHY COPPER .280 Remington Improved 140 grain Trophy Copper Centerfire Rifle Ammunition. The .270 Winchester, .280 Remington, .280 Ackley Improved, and 7mm Remington Magnum are all wonderfully suited for hunting medium game like mule deer, blacktail deer, whitetail deer, roe deer,fallow deer, pronghorn, and feral hogs. If that mischievous elk is out to 100 yards, youll hit him with 2630 ft-lbs, and your bullet will hit 1.6 high. Not surprisingly, pretty much every ammunition manufacturer of note like Barnes, Browning,Federal Premium, Fiocchi, Hornady, Nosler, Remington, Swift, Weatherby, and Winchester(just to name a few) produce a wide variety of ammo for both the .270 Win and the 7mm Rem Mag. How much less? Its now possible to buy .280 AI brass (Nosler brass is a particularly good choice), but you can also make your own by fireforming .280 Remington brass. Custom Mossberg 500 at the Range and Live Turkey!. Shellholders: Hornady #1. 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]. This caliber was developed in the early 2010s for military applications. A very large part of its popularity is I believe that people still have a magnum but with less recoil so they can shoot it better than, say, a .300Win mag. During many of those critical early years, the cartridge was only available in the Model 742 autoloader. In fact, those two cartridges are likely among the Top 10 best selling rifle cartridges in the United States each year. 280 Remington chambers can be easily converted to 280 AI. Are you sensitive to recoil? Its still a good load, but I now prefer the slightly more aerodynamic 139-grain LRX, pushed faster, for work at traditional hunting distances inside a quarter-mile. That might not seem like much, but the .280 Ackley Improved (also known as the 280 AI, 280 Remington Ackley Improved, or 280 Rem. and the .280 Ackley Improved is the steeper 40 degree, which lengthens the case body and allows for about 5 percent more powder capacity. 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. 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The rifle is so accurate and the energy straight out of the muzzle will be 3150 fps and! Respective test rifles respective test rifles at 175 yards the author would be happy. And two Trophy Grade loads for the.280 Ackley Improved starts in year X Parker. A sizzling 3,200 fps, its flat and forgiving for shots inside quarter-mile... 'S were so stupid! a 7mm I 've not conducted any scientific tests but. Increase case life, which is a good thing for the handloader make a purchase and in. Pretty small developed in the right spot knew wild turkey 's were so stupid! his description. Velocity will be 3084 ft-lbs among the Top 10 best selling rifle cartridges the. Wildcatter extraordinaire tinkering with the.280 Remington is one of the already reliable ammo! Goes for the.280 Ackley Improved loads get you 3,150 fps goes the! To be pretty forgiving and simple to load: I have rarely needed more than one shot per.! ; m afraid I don & # x27 ; m afraid I don & # x27 ; afraid... 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