280 ackley improved vs 30 06

That the .280 AI can be built on a standard long action with a 30-06/.270 bolt face and magazine box is an added bonus. The true beauty of this round is its versatility. For chasing antelope or predators, 120-grain bullets like the ballistic tip scream along at nearly 3,400 fps and drop only 5 inches at 300 yards.

A space hotel that looks like a ferris wheel is planned to open in 2027, and it will cost a whopping $5 million for a three-night-stay. By 2027, “social distancing” will hopefully ...Like the 6.5 Creedmoor, the .280 Ackley Improved can remain supersonic out to 1,400 yards. ... it’s simply a shorter version of the time-tested and beloved .30/06. Yet it has proven again and ...Federal generously sent me a box of each of the initial factory loads coming off the line, seven in all, including 6.5 Creedmoor, .270 Win., .280 Ackley Improved, 7mm Rem. Mag., .308 Win., .30-06, and .300 Win. Mag. All Terminal Ascent cartridge cases are nickel plated against corrosion and feature primers sealed against moisture.These are the finalists that make the short list of all-around rifle cartridges: .270 Winchester, 7mm Remington Magnum, .308 Winchester and .30-06 Springfield. Each of these are well covered in my series of articles on centerfire rifle cartridges and I recommend reading those articles for more information about the history, ballistics and ...May 22, 2022 ... 270 vs 280 vs 280 Ackley Improved vs 7mm Rem Mag: What You Should Know ... 280 Ackley Improved! ... Model 70 in 30-06: A love hate relationship.280 ackley improved a.i. accubond deer hunting load development nosler Help Support Long Range Hunting Forum Become a supporting member. C. Couch11b Well-Known Member. ... In slower cartridges such as the 30-06 which can only push the 210's to 2500-2600, they expand well at any range. With the magnum calibers pushing …Specifications. .280 Remington vs .270 Winchester. .280 vs .30-06. .280 Remington vs 7x64 Brenneke. .280 Ackley Improved. See also. References. .280 Remington. The …

My father has used a 280 Remington for years hunting elk. 160 gr Partiton was the preferred handload due to OAL limitation of the detachable magazine on his 7600. 160 AccuBond would be a superb choice, or drop back to 150 gr as it won't lose a lot of weight. In any case, a 280AI is a great choice for elk. Feb 8, 2022.The 7 SAUM and .280 Ackley Improved are both very popular 7mm cartridges, but which one is the ultimate hunting and shooting cartridge? Find out in this epi...The .280 Remington was introduced in 1957. Various sources suggest that Remington engineers were interested in creating a high powered 7mm cartridge for several years before reaching their long term goal. The resulting cartridge was based on the .30-06 case necked down to 7mm (.284”). Although the 7mm-06 wildcat had been in existence for ...Ammunition costs between the two cartridges are similar, but manufacturers often offer cheaper options in the .300. Federal’s Trophy Copper .300 Win. Mag. is $66 for a box of 20 while their .280 AI is $70. But Federal also offers eight times more .300 Win. Mag. options than .280 AI, some of which cost significantly less.The .280 Remington was next to gain commercial status, being introduced by Big Green in 1957. It is nothing more, and nothing less, than the .30-03 case (and even the .270 case) necked to hold 7mm bullets, and that’s a good thing. The 7mm, or .284-inch diameter, bullets offer a good range of weight for the hunter, topping out at 175 grains.Additionally, cases for the .280 Ackley Improved can be made from common .30-06 Springfield brass by necking it down to .284-inch, and then fire-forming with a light powder charge. What Ackley ...280 Ackley Improved vs 280 Remington. DESIGN AND SPECIFICATIONS. The 280 AI is Ackley's version of the 280 Remington, a standalone cartridge based on the 30-06 Springfield case, necked down to accept .284-inch bullets. Necking down the cartridge allows for a wide range of bullet choices that are often …

Improved rounds like the .280 Ackley (c.) have less case stretch, increased integrity and better powder burn than cartridges such as the .30-06 (l.) and .300 H&H (r.) November 07, 2023 By Joseph von BenediktFirst, the average bullet weight is encapsulated in the average muzzle energy for the .280 Remington. The second important assumption is ‘slightly-suboptimal’ to ‘optimal’ shot placement. That is to say, we assume the grizzly or brown bear being harvested is shot directly or nearly directly in the vitals (heart and/or lungs).Dec 12, 2023 · The .30-06 is a quiet achiever. One of the most controversial wildcats ever developed from it was PO Ackley’s .30-06 Improved. Two schools of thought clashed heatedly over the cartridge; one group claimed it was little better than the standard .30-06 while another school argued that it was as good as the .300 H&H magnum, at that time the sole ... Shooting. 280 Ackley Improved: a Versatile Big Game Hunting Round and 6 Rifles Chambered For It. By Travis Smola | March 12, 2022. The .280 Ackley Improved …With the development of Terminal Ascent ammunition, Federal took the TLR concept to the next level. Terminal Ascent is loaded in a variety of calibers, and I chose three chamberings based on the rifles I …The 7 SAUM and .280 Ackley Improved are both very popular 7mm cartridges, but which one is the ultimate hunting and shooting cartridge? Find out in this epi...

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When he sent me a query on the 6.5-06 Ackley Improved and his custom build, I jumped at the chance to publish it. I've heard about this caliber for years and always thought it would be a real shooter for big deer. Check out Justin's review on the 6.5 and how he incorporated it into his long range rifle build, the "perfect" long range deer rifle ...The 6. 5-06 is a wildcat round based on the. 30-06 case necked down to. 264 caliber, while the 6. 5 prc (precision rifle cartridge) is a factory cartridge specifically designed for long-range precision shooting. With a flatter trajectory and less recoil than the 6. 5-06, the 6. 5 prc boasts higher velocities and energy at extended distances.The following chart shows the usable interior case volume of all popular rifle cartridges, measured in cubic inches and assuming a standard .013″ brass thickness. By “usable case capacity,” I mean the internal area of the body of the case and shoulder, but none of the neck. This would be the space occupied by powder in the case of a flat ...This question is about Florida State University Credit Union Savings & CDs @FSUCU • 06/13/16 This answer was first published on 06/13/16. For the most current information about a f...280 Ackley Improved vs 280 Remington. DESIGN AND SPECIFICATIONS. The 280 AI is Ackley's version of the 280 Remington, a standalone cartridge based on the 30-06 Springfield case, necked down to accept .284-inch bullets. Necking down the cartridge allows for a wide range of bullet choices that are often …

The AI case has more capacity, and should not exhibit as much "stretching", (i.e., brass flow lengthening the case necks) as the standard cartridge, so cases will not require trimming as often. The 30-06 AI tends to be an improvement for the shooter that reloads, since it offers increased case capacity and longer case life.The .280 Remington was next to gain commercial status, being introduced by Big Green in 1957. It is nothing more, and nothing less, than the .30-03 case (and even the .270 case) necked to hold 7mm bullets, and that’s a good thing. The 7mm, or .284-inch diameter, bullets offer a good range of weight for the hunter, topping out at 175 grains.A space hotel that looks like a ferris wheel is planned to open in 2027, and it will cost a whopping $5 million for a three-night-stay. By 2027, “social distancing” will hopefully ...Indices Commodities Currencies Stocks The .280 Ackley has a similar velocity to the 7mm Rem Mag, when using light to mid-weight bullets. It also tends to produce less recoil, and less muzzle blast. When comparing the 280 Ackley with similar size cartridges, it has heavier bullet options than the 270 Win, and a flatter trajectory than the .30-06 Springfield.” This question is about Personal Loans @grace_enfield • 03/06/23 This answer was first published on 04/19/22 and it was last updated on 03/06/23.For the most current information abo...Ie. if you increase the volume by 50% you get a 25% increase in velostiy. The 06 has a case capisity of 68.01 grn,s of H2O and the 06 imp has a cast capisity of 68.34 grn`s of H2O. That is an increase of about 1/2 of 1 % or with a bullet from the 06 going 2,800 fps you could expect to get about 2,807 fps. You should get better case life though.It features all the virtues of the .30-06 (its grandparent cartridge) except for variety and availability of ammo. Furthermore, the .280 AI offers superb long-range ability. Peruse the chart below, wherein I compare similar loads in the 6.5 Creedmoor, the .30-06 and the .280 Ackley Improved, and you’ll see what I mean.

30-06 Springfield Ackley Improved Load Data. 125 Grain. 150 - 155 Grain. 165 - 168 Grain. 175 - 180 Grain. 200 Grain. 220 Grain. Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more.

Standardized length (SAAMI) for an factory 30-06 is 3.340" but as the Ackley Improved is non-standard you can throat and load any length that will seat in your mag box, feed in your action, and still allow the bullet to be seated in the case neck. I'm hesitant to make recommendations unless I'm comfortable that one receiving them understands ...PHoto shows 308 family of cartridges including 7mm-08, 260 Rem, and 243 Win. none of which are recommended for Ackley Improved. Reader K. Akins recently wrote to ask which cartridge I thought would benefit the most from conversion to Ackley Improved:the 260 Remington, 270 Winchester, or 7mm-08 Remington. I’m afraid I don’t have encouraging ...The .30-06 is a quiet achiever. One of the most controversial wildcats ever developed from it was PO Ackley’s .30-06 Improved. Two schools of thought clashed heatedly over the cartridge; one group claimed it was little better than the standard .30-06 while another school argued that it was as good as the .300 H&H magnum, at that time the sole ...Keep in mind the Sherman holds 2-3g more powder. I push the 181g Hammer at 3027 FPS and the 180 accubond at 3100 FPS. The Ackley version should get the 168 to 3100fps. If you go down this road buy Peterson 280AI brass and run it thru a 30cal expander. You will have way better results than standard 30-06 cases.Fred's version had a 30-degree shoulder angle and held a pinch more powder than the 7mm-06 Ackley Improved.Apr 16, 2012 · The .280 Ackley Improved has long been a favorite round among handloaders, but it has only recently started to break into the mainstream shooting market. There are no doubts about the merits of the round and its long-range capability nor its potential as an all-around cartridge for big game, and it is a perfect match for light mountain rifles ... There are as many good bullets availible for 7mm as there are for 30 cal. The 280 will kill anything the 30-06 will. The 280 AI will be a better LR hunting cartridge because 7mm bullets have higher BC and the 280 AI is launching them faster, so it shoots flatter, almost as good as the 7mm rem mag.Sticking with the 8-pound rifle, the 26 Nosler pushing a 142-grain bullet 3,200 fps will recoil 16 fps with nearly 32 f-p energy. The 28 Nosler adds considerable powder, thus energy, to push the same 175-grain bullet as the 280 AI. This nudges MV (muzzle velocity) to 3,200 fps and increases recoil velocity to almost 18 fps and energy to nearly ...240 WBY MAG, 243 WIN, 25-06 REM, 257 WBY MAG, 270 WBY MAG, 270 WIN, 280 ACKLEY IMPROVED, 30-06 SPRG, 300 WBY MAG, 300 WIN, 308 WIN, 6.5 CREEDMOOR, 6.5 WBY RPM, 6.5-300 WBY MAG, 7MM REM, 7MM WBY MAG, 7MM-08 REM. ... Bought the Mark V .280 Ackley Improved put my Vortex Viper Vhs on and … Pros for 30-06: Lots of ammo selections, easy to get practically anywhere, less expensive, heavier bullet selections. Cons: Slightly more recoil, not as flat shooting. Pros for 280 AI: flatter shooting, slightly softer recoil. Cons: expensive ammo, less ammo selection, not as readily available. The pros/cons list pushes me towards 30-06 but I ...

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The three rifles tested for this article. The one on the left is a Remington M-700 ADL switch-barrel gun, with the .25-06 Improved barrel in place. Center gun is a Ruger M-77 Mk II VT. This rifle is now chambered for the Improved version of the .25-06. Right rifle is the author's ancient Hollow Bolt Ruger M-77 V, chambered for the standard .25 ....280 Ackley Improved Like many calibers, the .280 Ackley Improved (AI) is underrated only by those who have never used it. The cartridge is more than capable of taking large game like elk and moose, …A 270 case has a longer OAL than an 06 case but the length from the base to the shoulder is the same. A 280 case has the same OAL as the 270 and is longer from the base to the shoulder. a 280 is a 7mmx06 plain and simple. This is inaccurate. Base to shoulder 280: 1.9992" 30.06: 1.9480" The difference is subtle.1. .243 Winchester. Many would consider the .243 Winchester too anemic for elk, but a cartridge like Hornady’s 90-grain ELD-X is capable of 3150 fps at the muzzle …Jul 16, 2012 ... 280 Ackley Improved vs 7 SAUM: Two of the best rifle cartridges on earth ... 25-06 Ackley Improved ... 30-06 Cartridge Family. Ron Spomer Outdoors ...That’s 8 grains (12.6 percent) more than the .280 Remington and 7.5 percent greater than the .280 Improved. Sundra essentially created a cartridge similar to the 7mm Gibbs but with a longer neck and a shoulder angle that is a bit less sharp. Hornady 139-grain Spire Points at roughly 3,000 fps provided good groups from the 7mm JRS test rifle.The super-fast 6.5mm cartridges have made their way into the mainstream hunting conversation. The 26 Nosler arrived in 2013 and was hailed as the flattest shooting cartridge ever. This, obviously, comes at a price. To get the extreme velocity of 3,200 fps+ from heavy for caliber, 140 grain pills, the 26 can use up to 88gr of powder. This is over … Rechambering a custom rifle for the 223 Ackley Improved. Fire-formed 223 Ackley Improved case (left) and fired 223 Remington case (right). The improved case (left) doesn't have a tapered body and has its shoulder moved forward at a sharper, 40 degree (versus 20 degree) angle. Parker Otto (P.O.) Ackley was a well known author and gunsmith who ... I have a 30-06 and a 280 AI and if it were me I would consider one of those two cartridges. There is no dust on the 30-06 and it is a performer on game. Same to be said for my 280 AI. I used to have a 280 Remington and loved that cartridge. The 280 AI is just a bit more potent. Both are great. Nosler does make really good brass for the 280 AI.Hhhm, that's subjective. Ballistic wise I would say the .280 Rem. as it's the ballistic twin of the .270 Win., same case as the .25-06, does have the capability to use heavier bullets when compared with the .25-06. In years past, the .25-06 bullet selection stopped at 120gn and the .280 started at 120gn.The .30-06 is a quiet achiever. One of the most controversial wildcats ever developed from it was PO Ackley’s .30-06 Improved. Two schools of thought clashed heatedly over the cartridge; one group claimed it was little better than the standard .30-06 while another school argued that it was as good as the .300 H&H magnum, at that time the sole ...30-06 Springfield; 30-30 Winchester; 30-378 Weatherby Magnum; 308 Norma Magnum; ... 280 Ackley Improved Load Data; 280 Ackley Improved Load Data. 120 Grain; 140 Grain; ….

Jan 16, 2017 · It's pretty close to the 280 Ackley and since you're a reloader, obtaining ammo won't be an issue. But the 300 WSM is also a great choice. I think I'd prefer it over the 280 Ackley just because brass is probably a little easier to come by. Jan 14, 2017. #3. May 9, 2023 · Comparing the price of the factory ammunition for the two cartridges, the .280 Ackley Improved tends to be a bit more affordable. Additionally, cases for the .280 Ackley Improved can be made from common .30-06 Springfield brass, by necking it down to .284-inch, and then fire-forming with a light powder charge. I've got a .280 Ackley built by Accurate Ordnance with a 22" Brux 1-9" twist. It shoots the 160-168's fine. Haven't shot anything heavier. With RL-26 my load is at 2950 with the 160 Accubond and 2925 with the 162 ELDx. I messed with some H4831sc, and it was very accurate, but 100-150 fps slower across the board.Location. Hollywood, Florida. Jan 3, 2021. #11. elkaholic said: Your neck will be way short using '06 brass. The 280 is .046" longer. Break out your measuring tool and dial up .046 . Just like over trimming .280 brass.The .300 Winchester has a case length of 2.62 inches—compared to the earlier Winchester Magnum’s 2.500-inch length—and an overall length of 3.340 inches. Like the .300 H&H, the .300 Winchester is designed to headspace off the belt, but the clever reloader can adjust the cartridge to headspace off the shoulder.So not only are these rifles eye-catching, they’re also stylish. Ridgeline FFT rifles are currently offered in nine different chamberings from .22-250 to .450 Bushmaster, including 6.5 Creedmoor, 6.5 PRC, .280 Ackley Improved, .308 Win, .30-06, .300 Remington Ultra Magnum and many more.The older wildcat has several names including 280 Ackley Improved 40°, 280 Rem Improved 40°, 280 Imp 40°, 280 Ackley, 280 Rem Imp, and more. 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.Get a good quality rifle chambered in 7mm Remington Magnum, or a cartridge offering similar performance like the .280 Ackley Improved, and you’ll be well-armed for elk season. 30-06 …From left To right: 6.5 Creedmoor, .280 Ackley Improved, 7mm Remington Magnum, .30-06 Springfield, and the .300 Winchester Magnum. Aram von Benedikt ... The .280 Ackley Improved is the ideal all-around western big game cartridge. Aram von Benedikt. Snow fell silently at 12,500 feet, dusting the pines with white. Vapor blew from … 280 ackley improved vs 30 06, The 24" barrel on our .280 Ackley Improved test model measures 1.150" in diameter at the breech, tapering to 0.794" at the steel bolster backing the muzzle threading, for a contour Nosler calls ..., Two of the three .280 Ackley groups fired with the 139-grain Barnes LRX actually clustered into less than 0.5 m.o.a. One word of caution: I suspect the maximum loads shown in Vihtavuori’s reloading guide are generated using European pressure standards, which commonly have a higher ceiling than those in the United States., I'm going to rebarrel it with a 25" 280 ackley improved. ... and if you did need ammo what are the chances you'd find 7 mag vs 280 AI of either shoulder angle ?, A 30-06AI is absolutely not worth it. My .06 shoots as well as a 308 and I have at least 5 loads that shoot sub and 1/2 MOA. The AI version will not improve a thing, IMO. The ONLY AI worth having is a 280, with the 260 a close second but even the latter is a waste of time IMO., Jul 3, 2012 · As far as deer cartridges go, the .280 Ackley Improved (AI) is not as well known as the time-honored .30-06, but perhaps it should be. It gives the 7mm Remington Magnum a run for its money, yet burns less powder, recoils less, yields theoretically longer barrel and case life and is generally much nicer to shoot. , 1. .243 Winchester. Many would consider the .243 Winchester too anemic for elk, but a cartridge like Hornady’s 90-grain ELD-X is capable of 3150 fps at the muzzle …, When it comes to buying that spooky-ish-looking Victorian mansion, the word is 'buyer beware.' Advertisement Helen Ackley and her family lived with ghosts for years in their turn-o..., The choice between 6. 8 western and 280 ai depends on personal preferences. The 6. 8 western offers a flatter trajectory and slightly higher velocities, while the 280 ai has a wider bullet selection and may offer better terminal performance. Both calibers are capable of excellent long-range accuracy., The .280 Ackley Improved has long been a favorite round among handloaders, but it has only recently started to break into the mainstream shooting market. There are no doubts about the merits of the round and its long-range capability nor its potential as an all-around cartridge for big game, and it is a perfect match for light mountain rifles ..., When he sent me a query on the 6.5-06 Ackley Improved and his custom build, I jumped at the chance to publish it. I've heard about this caliber for years and always thought it would be a real shooter for big deer. Check out Justin's review on the 6.5 and how he incorporated it into his long range rifle build, the "perfect" long range deer rifle ..., Additionally, cases for the .280 Ackley Improved can be made from common .30-06 Springfield brass by necking it down to .284-inch, and then fire-forming with a light powder charge. What Ackley ..., This question is about Personal Loans @grace_enfield • 03/06/23 This answer was first published on 04/19/22 and it was last updated on 03/06/23.For the most current information abo..., Medicine Matters Sharing successes, challenges and daily happenings in the Department of Medicine Nadia Hansel, MD, MPH, is the interim director of the Department of Medicine in th..., Rechambering a custom rifle for the 223 Ackley Improved. Fire-formed 223 Ackley Improved case (left) and fired 223 Remington case (right). The improved case (left) doesn't have a tapered body and has its shoulder moved forward at a sharper, 40 degree (versus 20 degree) angle. Parker Otto (P.O.) Ackley was a well known author and gunsmith who ... , Mar 16, 2021 ... My reasons for going to the 280 Ackley were simply that I was trying to get as close as I could to 7mm Rem Magnum performance without the need ..., Bought the Mark V .280 Ackley Improved put my Vortex Viper Vhs on and boresighted it. 4 shots to be center of of the 1 in bulls eye. This rifle will put the 162 gr Hornady in the,same bullet hole off a rifle rest and bench at 100 easy with the trigger at 2.5 I will be adding a muzzlebreak!, Jan 4, 2020 ... 280 Ackley Improved,,,anybody using one. Jump to ... 280 vs 280 Ai comparison ?whoops .Can a worms ... I was going to use Lapua 30-06 but I already ..., Additionally, cases for the .280 Ackley Improved can be made from common .30-06 Springfield brass by necking it down to .284-inch, and then fire-forming with a light powder charge. What Ackley ..., Gages made according to Ackley’s guidelines may be used to headspace any caliber based upon the original case. For instance, 30-06 Improved gages— made the way we make them—may be used to headspace all ’06-based chambers from 22-06 Imp. through 35 Whelen Imp., or larger. In Summary: When “improving” a standard chamber, the barrel ..., Dec 20, 2021 ... The 280 AI is just so dang efficient. With less powder it essentially has the same ballistics as the 7 SAUM. I vote 280 AI., These days I'd still go with a similar NULA (the .30-06 has a #2 contour 24" barrel) but might go with the .280 Ackley Improved. It basically gets .30-06 muzzle velocities with the same-weight bullets, but the 7mm bullets have somewhat higher ballistic coefficients, so drift less in the wind. There are so many good bullets these days it would ..., Honestly, the 160 moving 150 fps faster should have near equal energy as the 180 inside of 100 yards. I'd bet they mean; which cartridge shoots farthest, within an 8 kill zone, without needing to adjust the scope. I would think the faster more aerodynamic bullet; (assuming the "280AI or 7 Mag... 160gr A-Bond" is more aerodynamic.), Apr 1, 2024 · Additionally, cases for the .280 Ackley Improved can be made from common .30-06 Springfield brass by necking it down to .284-inch, and then fire-forming with a light powder charge. What Ackley ... , Between the .280 Remington and the .280 Ackley Improved, which better suits a hunter? Contributor Philip Massaro examines the pros and cons of each., In the mid-20th century Mr. P.O. Ackley created an improved version of the 30-06 that to this day bears his name. P.O. Ackley took most of the taper out of the 30-06 case (commonly referred to as “straightening the case”) and pushed its gently sloping shoulder angle to a radical 40-degrees. That increased the case’s powder capacity about ..., 280AI for the win. My father shoots a 280 Remington and it's the best of both worlds in my opinion. As has been said, heavier bullet weights than the 270 and with the higher sectional density, all things equal better long range performance than a 30-06 or 30-06 AI., Mar 17, 2011 · Mild-mannered but wicked, the .280 Ackley Improved is a virtuoso of a cartridge. By Joseph von Benedikt. PHOTOS BY MIKE ANSCHUETZ. I'll stick my neck out and say it: I think the .280 Ackley Improved cartridge is the finest of the flock and gives shooters more for their effort than any other wildcat. (Some may argue that it's no longer a wildcat ... , Feb 16, 2018 .30-06, ackley improved, home gunsmithing, survival rifle. At the present time ammunition is more plentiful and affordable than it has been under previous administrations, but many of us remember days when ammo prices were high and availability was low, affected by politics and driven by panic-buying after every tragedy involving a ..., .30-06 Sprg..270 Win..308 Win. 6.5 Creedmoor.280 Ackley Improved • Weight: 7.65 lbs in Long Action / 7.0 lbs in Short Action • Magazine/Capacity: Hinged Floor Plate 4 in Standard, 3 in Magnum • Trigger: Timney® 510 Curved • Barrel Length: 22” in Short Action, 24” in Long Action • Barrel Taper: #3 • Action: Bergara Premier Long ..., Some shooters opt for the Ackley Improved version of the 30 06, seeking enhanced performance. The 30 06 Ackley Improved features a steeper shoulder angle and improved case design, resulting in increased velocity and improved ballistic efficiency. Conclusion. In the perennial debate of 280 AI vs 30 06, there’s no one-size-fits-all answer., Energy. Furthermore, the muzzle energy of a .30-06 Springfield round averages out to 2920 ft-lb, while a .300 WSM Winchester Short Magnum round averages out to about 3580 ft-lb. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot., Nov 21, 2018 · Ackley reduced the original cartridge’s body taper and changed the shoulder angle to 40 degrees, which allowed for greater case capacity. This new wildcat, which became known as the .280 Ackley Improved 40-Degree Shoulder, beat .280 Rem ballistics by about 100 fps, which gave it energy and trajectory figures that nipped at the heels of the ... , The .280 pushes the 140-grain bullets to 2950 to 3000 fps, the 150-grain to 2890 fps and the 160-grain bullets to 2780 fps. Ammo is available from Remington, Federal, Winchester, Hornady, Norma, Nosler and more. There are an equally large number of rifles available in .280 Remington. As is the case with so many cartridges released during the ...