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 …(RTTNews) - Automaker General Motors Co. (GM) said on Wednesday that it expects its annual revenue to double to $280 billion by the end of the dec... (RTTNews) - Automaker General ...Depending on the action used,rechambering to the 30/06 Improved or Ackley or Gibbs usually requires that the feed lips be modified. Most of the blown-out 30/06 wildcats were invented and popular back in the '40's and '50's,when the only high velocity 30 caliber was the .300 H&H.Some people wanted more soup without the belted case and …Nov 13, 2021 ... These were also mercuric. .30-06 Ackley Improved next to regular .30-06 round ... 280 (1957), and of course the .25-06 (1969) ... 7.62 NATO vs. .How do these two compare? Both great cartridges!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...So, Campfire friends, that's the story of the 6.5-.280 Ackley. It is a superb round. Frankly, my work with my Gordy Gritters 6.5-'06 Ackley proved it to be fully equal to the 6.5-280 Ackley. If I were to chose between the rounds, I would go for the 6.5-'06 Ackley because dies are easier to obtain and the choice of brass (.25-06) is far superior.Warning! Notes: .30-06 chamber was cut to SAAMI specifications. (Handloader Issue 123) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .30-06 Ackley Improved reloading data with 22 loads. Using bullets from Hornady Spire Point, Hornady roundnose. Powders include IMR, Hodgdon, Winchester.So I don't have to change the bolt I went 22-250 AI fast twist, 308, and 280 AI fast twist with some free bore so I can load the bullets out and push the heavies. The 22-250 and 280 have 27" barrels. The 308 is 20". Tell me why I should consider a 7mm PRC over the 280 AI FT +P. The negative for me is brass and a $400+ bolt change.For reference, compare that to 17.5 degrees on the .30-06, 25 degrees on the .300 Win. Mag., and a scant 8.5 degrees on the long, tapered .300 H&H case. ... However, the .280 Ackley and other improved case shapes provide an abrupt wall on the forward end of the propellant chamber. This holds the column of gunpowder inside the case a bit more ...This gave an estimate of 3054 fps for the extrapolated max in the 280. A similar calc for IMR4451 at 65000 PSI estimates 3059 fps. Of course grain of salt and Danger Will Robinson, yadda yadda. Re: 280 Ackley SAAMI vs. 280 Improv 40 deg pre-SAAMI. RevMike # 14939968 06/04/20.I want to build a new long range rifle and I am looking at the .280 Remington ackley improved or a .284 Winchester ackley improved. ... rounds will fit the magazine better also Also note that a 26" barrel is about the max length you'll ever need in the 30-06 case. You'd probably be just fine with a 24" barrel, and group a little more ...7mm SAUM vs 280 Ackley Improved (280AI) Thread starter St. Michael's Armory; Start date Nov ... or actually straight .280, and neck it to run Lapua 30-06 brass. It leaves the brass window wide open and slick feeding is a given. ... I run the 7 Sherman Short which is basically an 7 saum ackley. It is stupid simple to load up a 180 vld and …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 … Nosler Model 48 Action. Action and Bottom Metal Cerakoted Tungsten Grey. Trigger with 2 Position Safety. Carbon Fiber Mountain Hunter Stock in Granite Green or Shale Gray. 24” Sendero Light Contour, Carbon Fiber-Wrapped Cut-Rifled Barrel. 5/8x24 Threaded Muzzle. Glass and Aluminum Pillar Bedding. Hinged Floorplate. Spinny, a Gurgaon-based startup that operates a platform to facilitate the purchase and sale of used cars, is the latest firm to become a unicorn in the world’s second-largest inte...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 …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.The 6.5mm-06 A-Square Rifle Cartridge. The .30-06 Springfield is the parent case of the .25-06, 6.5mm-06 and the .270 Winchester, all of which are similar both ballistically and visually. Had the 6.5mm-06 been commercially adopted first, the other two would not have been necessary. In fact, the 6.5mm-06 remained a wildcat until 1997, when it ...Ackley would improve cartridges as small as the .22 Hornet and .218 Bee, up through the .30-30 and .30-’06, up to the .338-’06, with his own designs running up to the .475 Ackley Magnum. The .280 Ackley Improved is—you guessed it—the .280 Remington with the taper removed and the shoulder angle revised to 40 degrees.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 ...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 ...So, Campfire friends, that's the story of the 6.5-.280 Ackley. It is a superb round. Frankly, my work with my Gordy Gritters 6.5-'06 Ackley proved it to be fully equal to the 6.5-280 Ackley. If I were to chose between the rounds, I would go for the 6.5-'06 Ackley because dies are easier to obtain and the choice of brass (.25-06) is far superior.Apr 17, 2024 · The .280 Ackley Improved might not be the newest or fastest cartridge out there. But the following characteristics make it one of the best options for Western big game. In any case, Ackley started tinkering with the .280 Remington and he ended up necking down the original .30-06 Springfield case significantly. He gave the case a dramatic and quite distinctive 40-degree shoulder angle. Ackley also realized the body taper of the 280 Remington was probably unnecessary, so he reduced it.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 ...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 …Links to technical data and drawings for the newly SAAMI accepted Cartridge and Chamber designs not yet included in SAAMI Standards are listed below. These drawings will be incorporated during the next revision of the relevant SAAMI Standard. 12 Gauge 1¾”. 21 Sharp. 22 Advanced Rifle Cartridge. 22 Creedmoor. 22 Nosler.May 13, 2007. #2. The AI will give you 100-150 fps over the standard cartridge of coarse YOUR mileage will vary. The AI will cut the trimming of brass way- way back. Berger has some .277 vld bullets coming out at the end of the summer -i'm thinking about a 270 AI myself in the future. Should make a nice 6-700 yard pronghorn whitetail cartridge.The .280 Remington (left) is a fine cartridge, but the .280 Ackley Improved (right) offers a velocity advantage. The head start that the .270 Winchester had didn’t help the popularity of the .280 Remington, and it seemed to slog along with a small, but fervent following, yet never approached the popularity of the .270 Winchester or .30-06 Springfield.The Range XP is built on Weatherby’s newest bolt action rifle platform, the Model 307. Meant to complement the historic Mark V® and Vanguard® lineups, the Model 307 action is a 2-Lug, fully cylindrical action compatible with many aftermarket accessories. Model 307 is designed to accommodate the vast offerings of stocks, triggers, rails, mounts, and …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...6.5-06; 280 Remington; 30-30 WCF; 30-40 Krag; 30-06; Interested in trying an Ackley Improved cartridge? You can rent the tools to rechamber your gun from our sister site: www.4drentals.com They stock all the popular Ackley chamberings and a few of the esoteric ones as well. Pacific Tool and Gauge explains Ackley Headspace.Aug 31, 2011 ... Basically it has the same parent case (30/06) as the 270 Win, 25-06 Rem and of course, the 280 Rem. Ackely Improved means the shoulders are ...The 6.5-06 does not give the advantage of heavier bullets or the velocity of the 130s the 280ai will blow the 6,5 away. and gain is in the 6-7% range based on the reamer. i have had great results with the 280ai 140- at 3140 and 160's at 2975 out of 24 inche bbl Bob.Like its parent cartridge, the 7mm-08 Remington works perfectly in a short-action rifle, and inherited the .308’s accuracy. The 7mm-08 Remington shares the same 20-degree shoulder angle and datum line of the .308 Winchester, but the case measures 2.035 inches versus the .308’s 2.015 inches. Much like its father, it performs best with ...Apr 23, 2021 ... ... vs 30-06 Springfield 30-06 vs 7mm Rem Mag. ... vs 30-06 Springfield 30-06 vs ... 270 vs 280 vs 280 Ackley Improved vs 7mm Rem Mag: What You Should ...The 7mm-08 Remington’s recoil produces 14.88 ft-lbs of energy at a velocity of 10.68 fps. Because of its mild recoil, it is often recommended as a good hunting cartridge for youth and small-framed shooters. The 7mm Remington Mag generates significant recoil of 22.15 ft-lbs at 13.32 fps.Ackley would improve cartridges as small as the .22 Hornet and .218 Bee, up through the .30-30 and .30-’06, up to the .338-’06, with his own designs running up to the …Parker Otto Ackley (1903-1989), better known as simply P.O. Ackley, was one of the most important gunsmiths and ammunition designers of the 20th century. He has been credited with almost 30 different wildcat and improved rounds during his career. The .280 Ackley improved is one of them. Together with Fred Huntington, founder of RCBS, Ackley ...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...Aug 16, 2021 ... To learn more about popular hunting calibers like the .270 Winchester, .280 Remington, 280 Ackley Improved and 7mm Remington, ...At least two blown-out versions — meaning the walls are straightened and shoulder is pushed forward — are fairly popular. The 6.5 Gibbs reportedly reaches 3,325 fps with a 120-grain bullet, and the 6.5-06 Ackley Improved hits 3,100 fps. Descendents of the .30-06 are numerous because so many rifles are available in .30-06 action lengths.Performance. 280 Ackley Improved Vs. 280 Remington. Loaded with a 150 grain bullet, the .280 AI shot from a 24" barrel gives a muzzle velocity of approximately 3,060 fps, which …Some will get you close, and some will be so far off, you'd think you have a bent barrel, so as far as load data, you're best off to do your own load data based on the reloading manual for the brand of bullets you choose to shoot. Manuals aren't that expensive, only around $20-35 each. .280 Ackley Improved is an excellent cartridge, and one of ...My go-to .30-06 averages close to one MOA or better with all of them—which says a lot about the quality of today’s premium factory-made hunting ammo. Rifle Setup for Best Results. ... .280 Ackley Improved, and .300 H&H. But if I were forced by the Four Horsemen of the Apocalypse to choose one firearm with which to hunt anything from …Oct 23, 2023 ... When loaded to still be hotter than a 30-06, but not to max, it's incredibly accurate. Much more so than the gun was originally. FYI, I've shot ...Some will get you close, and some will be so far off, you'd think you have a bent barrel, so as far as load data, you're best off to do your own load data based on the reloading manual for the brand of bullets you choose to shoot. Manuals aren't that expensive, only around $20-35 each. .280 Ackley Improved is an excellent cartridge, …Feb 6, 2024 · 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. .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, …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 ...So, Campfire friends, that's the story of the 6.5-.280 Ackley. It is a superb round. Frankly, my work with my Gordy Gritters 6.5-'06 Ackley proved it to be fully equal to the 6.5-280 Ackley. If I were to chose between the rounds, I would go for the 6.5-'06 Ackley because dies are easier to obtain and the choice of brass (.25-06) is far superior.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...Specifications. .280 Remington vs .270 Winchester. .280 vs .30-06. .280 Remington vs 7x64 Brenneke. .280 Ackley Improved. See also. References. .280 Remington. The …614. Mar 19, 2017. #12. In a mountain rifle the smaller the bore the better IMO barrels are a bit less whippy. A stated its hard to beat the 30-06 for versatility not so many factory loads for the 280 rem. Darn nice cartridge though. Good luck and shot straight. Bob.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 ...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 …Looking at the lineup of .25-caliber cartridges, the .257 Roberts and .25-06 Remington sit in a very good position, as their velocities aren’t so anemic as to be considered short range choices like the .25-20 and .25-35 are, yet they aren’t so hot as to quickly erode throats. The .257 Roberts is the older and slower of the two, so let’s ...Two of my favorites among the ’06 offspring are the .338-06 A-Square and the .35 Whelen, which give the shooter access to a larger frontal diameter and heavier bullet weights than are associated with the .30-06 Springfield. The .35 Whelen is the older of the two designs, first making an appearance as a wildcat nearly a century ago.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 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.For practical purposes, the .280 Ackley Improved is similar to the .270 Winchester, 30-06 Springfield and .280 Remingon. In other words, energy and maximum point blank range for this line of cartridges is similar, making them suitable for mid size big game such as white tail deer and Dall ram .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.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 ...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.May 26, 2010 ... The 280 Rem is the same as the 285 OKH and the 7-06 wildcats. The Ackley Improved versions of both the 30-06 AI & 280 Rem AI (as well as any ...Wondering how much it costs to send your child to Primrose Schools? We explain the tuition rates and other costs to expect at Primrose Schools. Jump Links Tuition at Primrose Schoo...Aug 16, 2021 ... To learn more about popular hunting calibers like the .270 Winchester, .280 Remington, 280 Ackley Improved and 7mm Remington, ...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. Aside from its stellar ballistic credentials, the 280 AI is a …Fred Huntington, founder of RCBS, developed the .280 RCBS by blowing out the body taper of the .280 Remington and changing the shoulder angle to 35-degrees. P.O. Ackley, the famous gunsmith and ballistician, changed the shoulder to 40-degrees, lent his surname, and the .280 Ackley Improved was born. Like most of the Ackley …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.The 7mm PRC does offer higher velocity figures—running at a higher pressure—though many feel that the 7mm Remington Magnum has plenty of velocity. The PRC is most certainly a better choice as a long-range target cartridge; I had the opportunity to use the cartridge in a Remington Model 700 at the FTW Ranch in Barksdale, Texas, punching ...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...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 ...The case design of the 7x64 is almost identical to the .30-06, making the 7x64 very similar to the .280 Remington. There are relatively few 7x64 rifles outside of Europe although European brand rifles are sometimes exported in this caliber. The 7x64 is common in South Africa but in the U.S, Canada, Australia and New Zealand, rifles chambered ...Parker Otto Ackley (1903-1989), better known as simply P.O. Ackley, was one of the most important gunsmiths and ammunition designers of the 20th century. He has been credited with almost 30 different wildcat and improved rounds during his career. The .280 Ackley improved is one of them. Together with Fred Huntington, founder of RCBS, Ackley ...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 …Also known as the .280 Ackley Improved or the .280 Remington Ackley Improved, the .280 AI is basically a .280 Remington case (itself a .30-06 Springfield case necked down to 7mm/.284") that's been blown out to increase the powder capacity.
The 7mm-08 Remington’s recoil produces 14.88 ft-lbs of energy at a velocity of 10.68 fps. Because of its mild recoil, it is often recommended as a good hunting cartridge for youth and small-framed shooters. The 7mm Remington Mag generates significant recoil of 22.15 ft-lbs at 13.32 fps.. Notti and dd osama
Dec 27, 2020 ... 280 Ackley Improved. 117K ... 280 Ackley Improved vs 7 SAUM: Two of the best rifle cartridges on earth ... Time To Update The 30-06 AI? - Season 3 ...However, many reloads will choose the 30-06 for its wider array of bullet weights. In terms of energy, the 30-06 is a more powerful cartridge at ranges inside of 500 yards however, the 280 does eventually overtake the 30-06 in energy. So if you need a heavy hitting cartridge for game such as elk or moose the 30-06 is the better choice.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 …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 ... 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 ...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 ...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 …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. Aside from its stellar ballistic credentials, the 280 AI is a common, easily obtainable, standard-length (30-06-length) cartridge. It's also a 30-06 rim-size.Ackley would improve cartridges as small as the .22 Hornet and .218 Bee, up through the .30-30 and .30-’06, up to the .338-’06, with his own designs running up to the .475 Ackley Magnum. The .280 Ackley Improved is—you guessed it—the .280 Remington with the taper removed and the shoulder angle revised to 40 degrees.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 ...2. .280 Ackley Improved. 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 a big bull elk’s nostrils, swirling with the falling snow, as he stared across my hidden meadow.The 280 ackley improved and 270 cartridges bring their own distinct characteristics to the table. The 280 ai boasts impressive ballistic performance, while the 270 excels in its trajectory and wind drift capabilities. Comparing their muzzle velocity and energy, the 280 ai holds the advantage. However, when it comes to recoil and perceived ...I fire-formed 100 Lapua 30-06 brass to the 280 RCBS Improved - 30 degree shoulder. About the same thing as the 280 AI, but with slightly less angle on the shoulder. It can be done. It does take a bit of time and fussing. I believe I annealed the case neck shoulder junction prior to fire-forming. The shoulders blew out just fine on mine.Buckley, WA. The 6.5-06AI pictured in the article has a 26" Brux barrel. I'm running 140 Berger VLD's at 3215 fps with 64.5 grains of Ramshot Magnum. I also just finished one for my brother that shoots the same exact load at 3130 fps, but it has a 27" Benchmark barrel. May 7, 2015.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 is an old cartridge that seems to be gathering modern steam. Sometimes things take a while to catch on, or at least that seems to be the case sometimes in the world of big game hunting.I fully agree that the '06 and 7mm RM are great guns, but my point is that with the .280 already in the stable, it looks like the .30-06 and 7 mm Rem Mag would be redundant (I mean, I did buy the .280 instead of those in the first place) and I'd have to go to at least a .300 Win Mag to really gain a significant difference.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.Oct 7, 2019 ... I wasn't the OP but I would pick the 30-06 over the 280 AI. The energies are just about equal but the 30-06 is pushing a heavier bullet which ...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 … One of P.O. Ackley's earliest wildcats was the 7mm-06 Improved, which was made by necking down the .30-06 Springfield case and fire-forming it to have less body taper and a 40-degree shoulder angle. Soon after the .280 Remington came out, Fred Huntington reformed its case to an improved configuration with minimum body taper, a 35-degree ... .
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