Problem was the 280 and 7mm mag was already on the scene as was the 270. These things are correct, and yet the cartridge has never been especially popular. It is based on just one of several “7mm-06” wildcats, others including the .280 Ackley Improved and 7mm JRS. _____ I don't believe the 284 was a failure back in 1963. bullets, the 7mm Mag. or the venerable .270 Winchester, if you want perfection, but were aren’t talking mule deer. Though the .270 Winchester and .30-06 Springfield are both wonderful cartridges that have been incredibly popular with hunters since they were first introduced at the beginning of the 20th Century, gun designers never stopped looking for ways to improve upon the performance of those two old war horses. A .280 Remington max load will give you almost exactly the same velocity as a 7mm Magnum starting load. 7mm rem mag vs 280 AI with heavy for caliber bullets 04-21-2020, 21:03. Remember, ejecta (exploding gases and particulates exiting the muzzle) contributes greatly to recoil. Mag. The 7mm shoots .284-inch diameter bullets through bores .28-inch across, but only two use this Imperial measuring system in their titles: .280 Remington and .284 Winchester, both excellent but under-rated “standard” velocity cartridges. i have no experience with a 280 to make a comparison. Makes sense that with 140-160 grain it could be close. They will also tell you that with good handloads the .280 will come within spitting distance of the 7mm Remington Magnum, in a shorter barrel, while burning a lot less powder. 8 | 10 | 12. Great little woods deer gun but can double as a medium range deer rifle. If you compare the ballistics to the .280 Improved, you will find they are almost identical. Lots of talk about 280 AI being close to 7 mag performance, but I'm wondering if that's really the case for heavier 168 and 175 grain bullets? As a result, recoil is around 5 percent less. Hi all. Mag., 6.5 PRC, .264 Win. Looking at the velocity difference between the two cartridges, you’ll see the .280 Remington driving a140-grain bullet at a muzzle velocity between 2950 and 3050 fps, while the 7mm-08 Remington clocks in between 2800 and 2850 fps (Hornady’s Superformance being an exception at 2900 fps). To answer some of the questions on why I narrowed it down to only those two calibers. Therefore, less ejecta equals less kick. Plus, it’s known for accuracy. The only ammo you can buy for it will be labeled 280 Remington unless it's old stock. And yes, basically +/-100 fps difference (with the same weight bullet) between the .280 AI and 7mm RemMag with equal barrel lengths and twist rates. Handloads performance is equal or better than a 7mm mag. Mag., 257 Wby. As JD 338 said, the 280 AI comes fairly close to 7mm Mag ballistics, but will not equal it at sane pressures. The .280 Rem and .30-06 are slightly more (about 21 foot pounds); the .270 WSM, 7mm Rem Mag and .300 Win Mag are noticeably more (26 to 31 foot pounds); the .338 Win Mag is still greater (36 foot pounds); while the .300 and .338 Remington Ultra Mags are far greater (51 to 54 foot pounds). The author analyzed the 7x57 Mauser, 7mm-08 Remington, .280 Remington, 7mm Remington Magnum, 7mm Weatherby Magnum, and 28 Nosler for trajectory, effective range, and recoil with modern ballistic software available free online from shooterscalculator.com. has been accepted as a big game cartridge. 7mm Rem Mag.280 Ackley Improved; WHY IS THE 7MM/.284 CALIBER SO SIGNIFICANT? Recoil and muzzle blast is comparable to 270-30 06. It's a fallacy. At first glance, it is clear that the 7mm Rem Mag rounds have higher BCs than the .30-06 rounds with several of the rounds breaking the .6 mark. The .280 is not a 7mm mag, any more than a 7mm rem mag is a 7mm STW. that is not saying the 284 is better or worse than the 280 though. I was in you boat a few years ago and decided the 280 ai was a better fit for me. The difference is minimal, much like the comparison between the .308 and .30-06, and with the … You can also shoot factory 280 Rem loads as well. In the heavier bullets (150 grains and above) of similar design the .280 Remington has a slight edge in muzzle energy. 300 aac blackout 300 savage 308 winchester 30-06 springfield 30-06 springfield ack 30-338 (no fit) 308 norma mag 300 win mag 300 h&h mag 30 nosler 300 rem ultra mag 300 wby mag 300 prc (no fit) 10. The Contestants. The 264 Win is based off the 7mm Rem Mag case so you can neck down … 8mm mauser (8x57) 8mm-06 The 280 AI is also very flexable, max loads give you 7mm Rem Mag performance or you can load it down to 7mm-08 levels. It wouldn't even fit in the chamber. In my experience, the.280 AI generates nearly as much velocity as the popular 7mm Rem. i am at 2k rounds right now and it still shoots as good as it ever has. The .270WSM or WIN is a great cartridge, but very limited grain weight choices compared to the 7mm's. and uses 10 to 15 percent less powder to do so. Like all 7mms, they can fire bullets as light as 100-grains and as heavy as 180-grains. The 280 used to be called the 7mm Express, but is now called the 280. HISTORY. Appreciate any experience of this comparison. Due to its performance with 160 and 175 gr. The .280 Rem shoots a little slower, a little less flat, hits a little less hard, with a little less powder, with a little less recoil than the 7mm Rem Mag. .280 Ackley Improved vs. 7mm Remington Magnum. No complaints on the 7mm-08 either, however my shooting range is out to 500 yards and would like a little more velocity than the 7mm-08 provides at that range. .300 Win Mag vs 7mm Rem Mag: History. Calculations were corrected to standard temperature (59F/15C) and pressure (29.92 inHg/1013 mbar) … The .280 has spent most of its life pinched between the popular .270 and the 7mm Remington Magnum, and it competes against several other commercial 7mms as well: the blazing fast 7mm STW and 7mm Remington Ultra Mag and the low-recoiling 7mm-08 chief among them. The main advantage the 7MM Mag has over the 280 ro the 280 AI is that hyou can find factory 7mm Mag ammo most anywhere big game is hunted. Mag. Re: 284 Win -vs- 280 Rem our local guys got close to 3k accurate rounds of of their 284s running a 175 smk at around 2850 fps. I believe it fit the bill for a semi auto in the model 100 as did the 308. The .280 AI, as it’s called, can fire .280 Remington ammo (and the resulting case is fire-formed to .280 AI afterwards), yet it is capable of nearly matching 7mm Remington Magnum velocities with less powder and muzzle blast from lighter rifles. And with the .280 Sherman vs. the 7mmRM there is maybe at most 30 FPS difference, if any at all, between the two. We can make a 7mm Remington Magnum shoot extremely well, so it helps us in a unique way. The Gibbs now shows about 2940 at safe pressures, close to the big 30 but still 150 FPS shy at equal pressures. Regards, Eagleye. In todays political climate that may be a big plus. Some may say that the pair have both seen better days, with the 7mm Remington Magnum, 7mm-08 Remington, .280 Ackley Improved and 28 Nosler seeming more attractive to new hunters and shooters. The need for another 7mm wasn't necessary. Will easily shoot deer, pig, goat, sheep size game out to 1000 yards. i am running the same brand barrel and same load as they are. I'm trying to decide between 280AI or 28 Nosler. For the 7mm Rem Mag vs .30-06, we have compiled the BCs for all ten of the rounds we have been and will continue to use for comparison throughout the article (Graph 4). 7mm-08, 280, 7mm WBY, 7mm rem mag, 7mm ultra mag, all shoot .284 cal bullets. 12-30-2004, 08:00 PM. I prefer the 280 ai. DOUBLE RIFLE SHOOTERS SOCIETY These last two remove the body taper, thus increasing powder capacity, and they are indeed every bit as fast as the 7mm Remington Magnum. I'm kinda new to hand loading, just started at end of last year. for a faster .280 Ackley Improved, 7mm Rem. Stock up now, while you can. The simplest and cheapest way to solve your problem is to get a handloading set (the Lee Handpress Set is a good buy, and very versatile) and load 7mm Mags to starting load levels. Definitely not 7mm Remington Magnum if that's what you're thinking of. I'm looking at Kimber Hunter 280AI 24" Savage 110 Long Range Hunter 280AI … However the ballistic coefficient of equal weight bullets favors .270 caliber bullets over 7mm (.284) bullets of similar design. If you’re a Western dude who routinely shoots across canyons, I might sub the 7mm-08 Rem. Once I got my transducer and checked pressures, I soon adjusted my loads. The Cooper is a fine choice and the 280 AI is great it all but equals the 7mm and ammo is available through Nosler and maybe Norma, it is easy to load for and you can shoot regular 280 with no problems and it will be just as accurate, just not as fast> 6.5-284 is a hotty as well but same thing on ammo not plentiful but it is available...all this said nothing wrong with the 7mm but every one has one? 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