And it is a high performer. According to Derek Peterson, president of Peterson Cartridge, "The .280 Ackley Improved casing will launch a 7mm, 120 gr. bullet over 3,400 fps. 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.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 ...Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics. Threads. 473,704.And it is a high performer. According to Derek Peterson, president of Peterson Cartridge, “The .280 Ackley Improved casing will launch a 7mm, 120 gr. bullet over 3,400 fps. 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.6.5×280 Ackley Improved. Left to Right: 6.5×284, 6.5×280 AI, 280 AI. This cartridge is the king of non-magnum 6.5's. We designed our reamer for this cartridge around the 140 grain Berger VLD Hunting bullet, and we have also seen excellent results with the tradition 140 grain Nosler Accubond. With the 140 VLD, overall length is ...Ackley wildcats, such as the .30-06 Ackley Improved, feature increased case capacity and provide superior ballistics. Plus, standard factory loads of the parent cartridge can be fired in an AI-chambered rifle. The most prolific creator of wildcat cartridges was P.O. Ackley. During the 1940s and '50s, he developed an extensive portfolio that ...Weatherby WEATHERBY 280 ACKLEY 139GR HAMMER CUSTOM 20RD/BX 10BX/CS. Seller: GunFactory ( FFL) Gun #: 902758936. $106.99. 3 Image (s) Weatherby MKV Backcountry Ti 2.0 Carbon Fiber .280 Ackley 24" MBT20N280AR6B. Seller: Ammo And Arms ( FFL) Gun #: 911031824.Dear Lifehacker,I'm not a fan of what Microsoft did with Windows 8, so I didn't upgrade when it came out. I've stuck with Windows 7 for the past two years, but I need a new laptop ...I'd argue that a 6mm dasher is quite a lot more impressive in all aspects than a straight 6BR. I'd argue that my .20-223AI's are wildly more impressive than a .223rem with equal weight bullets. A 7mm norma mag improved leaves a straight 300 norma in the dust.Nov 23, 2017. #5. I just was testing the 162 ELD-X in my Jarrett 280 AI in the last few weeks, and what I noticed was these bullets shot best in my gun right at the lands to +.020" touching vs. going away. That said I felt these wouldn't stabilize well enough since my barrel is a 1:10". I did run them out to 700 yards while fire forming some ...Nov 25, 2020 ... Mag or even the newer 7mm Remington Short Action Ultra Mag is popular, and then it isn't. Rarely does it work the other way -- where a cartridge ...And it is a high performer. According to Derek Peterson, president of Peterson Cartridge, "The .280 Ackley Improved casing will launch a 7mm, 120 gr. bullet over 3,400 fps. 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.7mm/303 improved. Thread starter 350velocdtte; Start date Apr 17, 2020; Help Support Long Range Hunting Forum Become a supporting member. 3. 350velocdtte New Member. ... 7mm Ackley Improved Brass. slickyboyboo; Dec 15, 2010; Replies 0 Views 2K. Dec 15, 2010. slickyboyboo. S. 303 British reloading question. epags; Feb 4, 2021; Replies 2 Views ...The best Ackley Improved caliber is subjective, as it depends on the specific needs and preferences of the individual shooter. Contents What are some popular Ackley Improved calibers? Popular Ackley Improved calibers include the .30-06, .308 Winchester, 7mm Remington Magnum, and .280 Ackley Improved. Is the Ackley Improved caliber worth it?Apr 7, 2010. #5. According to the re-print of Ackley's published improvements here: Article posted on Precision Shooting Website about Ackley Improved cartridges - Shooters Forum. The .270 is listed twice. Most likely with different weight bullets. The velocity increases Ackley realized were listed as 7.8%-8.8% range.In this video I compare two modern designed cartridges to see which one comes out on top. Hope you enjoy the video!Pullman, WA. I have two 280AI. One is a Kimber Mtn Ascent that I shortened to a 22” barrel. The other is a custom in a 24” barrel. Both have a suppressor on them. If I had to chose one, it would be the 22” especially since I’m using a suppressor on almost everything. If I wasn’t using a suppressor, the 24” is the sweet spot for me.The .280 Ackley Improved was standardized by Nosler with SAAMI rather recently, but it's already gaining a reputation as a sought-after, flat-shooting and hard hitting cartridge almost on par with the 7mm Remington Magnum, but without quite as much recoil. So, if you consider the 7mm Remington Magnum to be appropriate for a particular hunting ...Most Of The Ackley Improved Mags.17 HMR (Hornady Magnum Rimfire) 14 RF Magnum, 17 RF Match, 22 WRF Short Body, 22WMR Short Bodys .17 HM2 ... 6mm-30x30, 7mm-30 Waters, 7mm-30 Waters (CIP), 7mm International R .30-40 Krag 303 British, 303 EPPS, 40-70 Straight .308 WinchesterThe 280 ackley improved is a more powerful cartridge compared to the 270. the 280 ackley improved offers increased power compared to the 270 cartridge. This article will explore the differences between these two popular calibers, including their ballistic performance, versatility, and popularity among shooters. ... 308 vs 7mm rem mag: the 308 ...Banana Belt, Montana. Nosler's 7x57 data is pretty "modern," and it's available on-line. If they don't list the powder you want to use, try 7mm-08 data. The 7-08's powder capacity is a little less than the 7x57's, so produces a little less pressure in "modern" 7x57's. In answer to your original question, no, the 7x57 Improved isn't worth the ...Such wildcats—or non-standard cases—are often referred to as "Ackley Improved" or AI. With the 150-gr. Noslers (BT, AB or CT) the AI will add about 200 fps to the muzzle velocity.That is only part of the story, however. In the article Ackley gave a list of load data for 87-, 100- and 120-grain bullets using various powders for the Niedner-standard .25-06. For the 120-grain bullet, his maximum 4831 powder charge was 57.0 grains for 3,101 fps. His maximum load for 4350 was 50.0 grains for 2,935 fps.Most magnum cartridges gain or lose about 30 fps per inch of barrel. Subtract 60 fps from the Weatherby data, and we get 3,125 fps, 102 fps faster than the .300 H&H data. Another advantage of improved cartridges is that, unlike other wildcats, factory ammunition can still be fired if necessary.I just was testing the 162 ELD-X in my Jarrett 280 AI in the last few weeks, and what I noticed was these bullets shot best in my gun right at the lands to +.020" touching vs. going away. That said I felt these wouldn't stabilize well enough since my barrel is a 1:10". I did run them out to 700 yards while fire forming some RWS brass and was ...A: When loaded to maximum in a strong, front-locking action like your Serbian Mauser, the 7×57 Ackley can safely drive a 130gn bullet at 3120fps with 55gn of AR2209; a 140gn bullet to 3010fps with 54gn of AR2209; and 160gn bullet at 2817fps with 52gn AR2209. These loads were safe in a Turkish Mauser with 24" barrel, but work up from two ...Oct 3, 2021. #6. This is my opinion, YMMV. I would consider a re-set of the 7mm-08 chamber diameters and headspace to SAAMI minimum, then your brass stretch problem should not be an issue. With powders like RL-17, Staball 6.5 and the like 140gn speeds of 3000ish are possible.In this video I compare the 280AI to the 7mm Rem Mag. I go over the history of each cartridge and compare the performance to each other. Hope you enjoy the v...The .325 WSM is as much of a pain in the ass as the rest, but it fills a void between the .30/06 and the .338. It’s a useful cartridge, and is underrated rather than overrated. 4. The 7mm ...Mar 10, 2009. #3. I prefer the 280 AI, as you get close to the same velocities as the 7mm rem but with much less recoil and better barrel life. Also it is my opinion that the 280 AI is MUCH less finicky than the 7mm rem. Better accuracy potential, better life, less recoil more than makes up for a few FPS the 7mm rem may offer.Location. Piedmont region of North Carolina. The .284 case is .135 longer than the 7-08 but the SAAMI OCL for both cartridges is the same (2.800). If you go with the Ackley it will straighten your walls a bit and might require some tweaking on the feed rails. The dimensions of your magazine might come into play also.Home Forums Gear Free Classifieds Custom 98 Mexican Mauser in 7MM Ackley Improved: Forums Member List Calendar Active Threads: Previous Thread: Next Thread : Print Thread: Hop To : Custom 98 Mexican Mauser in 7MM Ackley Improved #11855247 02/25/17. Joined: Mar 2006. Posts: 2,813. Northwest, Arkansas. D. DBrink OP.Apr 21, 2020 ... which I thought was a good shot with the skinny little barrel in the wind. Anyway, 7 mag will certainly reach out farther/flatter than the 280 ( ...Not so with "non-rebated rim" cartridges, especially the cartridges formed from the .308 Palma brass. So I decided to see if I can get the strength and accuracy out of the 7mm by going to a 7mm-08 and making it into an Ackley, using the Palma brass. Rifle Specs: Pierce Short Action "coned bolt" action as the basis. Jewell trigger set at 2oz.The 7mm-08 is best described as a short-action version of the grand old 7x57mm Mauser. Capacities of cases from various makers vary slightly, but on average, the 7x57 holds three to four grains more water. This may not sound like a lot, but the difference is about the same as with the .280 Rem. and the .280 Ackley Improved.I'm assuming this is the 7mm Ackley Magnum where you take a 7mm Remington Magnum Barrel, and cut Three Threads off and Ream it with an Improved Shoulder. With this Version you take 7mm Rem Mag Brass and form it through a Full length Sizing die thereby Lengthening the Neck and obtaining a much more Efficient shoulder. …Lube Dies 2. Model: 87552. Availability: In Stock. $46.99. View more. Shopping for the .257 Roberts Improved 40° Reloading Essentials - Learn more about the latest Shop by Cartridge and other hunting or shooting gear at RCBS.A: When loaded to maximum in a strong, front-locking action like your Serbian Mauser, the 7×57 Ackley can safely drive a 130gn bullet at 3120fps with 55gn of AR2209; a 140gn bullet to 3010fps with 54gn of AR2209; and 160gn bullet at 2817fps with 52gn AR2209. These loads were safe in a Turkish Mauser with 24” barrel, but work up from two ...Join Date: February 13, 2006. Location: Washington state. Posts: 15,248. The 7mm Ackley Magnum is based on the 7mm Mashburn, the precursor to the 7mm Rem Mag. You should be able to use 7mm Rem Mag cases for forming. One difficulty in rebarreling a 7mm Mag to 308 on an FN 98, it would require a new bolt.The .280 Remington and .280 Ackley Improved (especially the Ackley Improved) are both pretty good alternatives to hunters who want a little more powerful cartridge than the .270 Winchester, but with less recoil than cartridges like the 7mm Remington Magnum and .300 Win Mag.Homepage Reloading Dies 284 cal / 7mm 7mm x 57 Ackley Improved 7mm x 57 Ackley Improved. Show more. Filter the products. Manufacturer Redding-Hunter, Inc. (7) State. In stock. Price. We recommend From the inexpensive From the most expensive Product number a page: ...Our 280 Remington Ackley Improved barrels come it our heavy factory contour and ready to use with your factory rifle forend. They are stainless steel barrels with a matte finish and have a 1-9 twist. T/C Encore 300 Winchester Magnum T/C Contender Rifle Barrel - 300 Blackout.By contrast, my .280 Ackley is downright pleasant to shoot. Pushing a 140 gr. Spitzer at around 3100 fps, it sends a projectile as flat as you could want in a 7mm deer rifle. For whitetails, I feed her with Nosler’s excellent 140 gr. Accubond, one of the few factory-loaded choices out there in .280 Ackley Improved.Apr 7, 2010. #5. According to the re-print of Ackley's published improvements here: Article posted on Precision Shooting Website about Ackley Improved cartridges - Shooters Forum. The .270 is listed twice. Most likely with different weight bullets. The velocity increases Ackley realized were listed as 7.8%-8.8% range.280 ACKLEY IMPROVED. The 280 AI was developed by Parker Otto (P.O.) Ackley. P.O. was a lot like Roy Weatherby, a wildcatter who was in search of better solutions. His 280 AI set out to improve the .280 Rem by steeping the shoulder to 40 degrees to increase powder capacity. ... 7MM PRC. The 7mm PRC was introduced in 2022 and is the newest ...There is a 7x57 Improved and of course the .280 ai which is a 7mm, there is also a magnum 7mm Ackley as well. In my Cartridge Conversions book he also lists a .280 Rem Improved so 7mm Improved is pretty vague. I would want to know exactly what it is, as there are more than a few improved 7mm's.17 rem 204 ruger 22 hornet 22 nosler 22-250 rem 221 fireball 222 rem 223 rem 224 valkyrie 24 nosler 240 wby mag 243 win 257 wby mag 26 nosler 260 rem 270 wby mag 270 win 28 nosler 280 ackley improved 30 carbine 30 nosler 30-06 30-30 30-378 wby mag 300 blackout 300 prc 300 rum 300 wby mag 300 wsm 308 win 32 h+r mag 32 sw long 327 fed mag 33 ...So, when it comes to 7mm versus .280 Ackley Improved, it appears that there’s a very clear winner. Significantly better… 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.7mm Mauser Ackley Improved. Here goes, I have a 1931 Spanish Carbine 1916 Pattern Model 1893, it shoots really decent (2"-3" @ 100 w/iron sights) but the chamber is a little blown out. Rather than sink a bunch of money into it. (buying a new barrel and paying a gunsmith to install it). I was thinking of cleaning it up with an Ackley reamer, and ..."The .280 Ackley Improved is a bit of an oddball," Ryan Callaghan said. "I loved my .280 Rem., though I didn't have much confidence with it beyond 350 yards. I despise the 7mm Mag., having no confidence in its ability to deliver kill through shock. For whatever reason, the Ackley landed in a sweet spot for me.280 ackley improved 7mm rem mag 7mm wby mag 28 nosler 7mm prc (new!) 7mm rem ultra mag 7mm stw. 8 | 10 | 12. 300 aac blackout 300 ham'r 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. 8mm mauser (8x57)280 remington ackley improved 7mm remington short action ultra magnum 7mm winchester short magnum 7mm remington magnum 7mm weatherby magnum 7mm shooting times westerner 7mm remington ultra mag.308. 300 acc blackout 30-30 winchester (new!) 308 winchester 7.62x51 18″ barrel 7.62x51 20″ barrel 30-06 springfield306. Location. E. Wenatchee, WA. 98802. Nov 10, 2021. #11. I had a 7mm-300 weatherby built before the stw was out, sold the weatherby to buy a stw because of factory ammo. The 7mm-300 was better on brass than the stw , Iv'e been trying to buy it …7mm Bench Rest Remington A7X57 7 X 57mm Mauser A7MM08 7mm-08 Remington A280 280 Remington A280AI 280 Ackley Improved A7MMR 7mm Remington Magnum A300A 300 Blackout A3030 30-30 Winchester A308ME 308 Marlin Express A308 308 Winchester A300H 300 H & H Magnum A3006 30-06 SpringfieldHome Forums Gear Free Classifieds Custom 98 Mexican Mauser in 7MM Ackley Improved: Forums Member List Calendar Active Threads: Previous Thread: Next Thread : Print Thread: Hop To : Custom 98 Mexican Mauser in 7MM Ackley Improved #11855247 02/25/17. Joined: Mar 2006. Posts: 2,813. Northwest, Arkansas. D. DBrink OP.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 7mm Rem. Mag. yet the .280 AI produced less recoil and muzzle blast and offered space for an additional round in the magazine.Any of my Ackley Improved cartridges, I benefit from less cases stretching than from more speed also my 7mm Mauser Ackley Improved and 30-06 Springfield Ackley Improved cartridges burn slow burning powder more efficiently that standard cases. Reduced case stretching is tops in my book, I don't care about more speed, just accuracy. yooper777mm-08 Remington Improved 40° Deluxe Die Set For Bottleneck Case. 076-84430 | Redding . $173.99. Out of Stock. Sort By: Items Per Page: Item Total: (2) 0 - 2. To Our Customers. Proudly serving our customers for over 40 years, Midsouth Shooters can supply you with your pistol and ...Ackley Improved. P.O. Ackley was a notable gunsmith famous for developing wildcat cartridges from parent cartridges like the 30-06 Springfield. For many of the wildcats listed above, and several of standardized commercial chamberings based on the 30-06 cartridge, there are "Ackley Improved" versions with sharper shoulders increasing case capacity.Seems that most of it comes down to the ability to chamber the 7 SAUM in a short/XM action vs. needing the long action for the 280. That is not in play here. I am a handloader so availability of factory ammo is unimportant. A big plus is that ADG makes brass for the 7 SAUM (when it is available).Apr 5, 2024 ... Could the .280 Ackley Improved be the most versatile western hunting cartridge ... 280 Ackley Improved. Vortex Nation•118K views ... 7mm PRC vs 280 ...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 ...Well im about to be doing the same thing for my 260AI. I just picked up 100 pieces of winchester 7mm-08. I was going to FL size them with a cheap Lee die to standard 260 then load them on the higher side with 140gr noslers and fire form. then use a lee collet die for the necks and get a FL Redding 40 degree to do the occasianal resizing.The 6.5-06 is about the same as the 6.5×284 Norma, ballistics wise, but the 6.5-06 AI has a slight velocity advantage over them. With a 26″ barrel, the 6.5-06 AI would give me an additional 100-200 fps which would be very beneficial in down range energy. In the end I decided that the 6.5-06 AI was the rifle I wanted to build.Thinking 50fps for the increased capacity of the 08 case to AI is about max, keeping an equivalent range of pressure to the standard 7-08. Nosler uses a 26" barrel for their testing of the standard 7-08. Their figures would make a conservative estimate for 7-08AI velocities with a 24" barrel.There is the original Parker Otto "PO" Ackley chamber...In which you CAN shoot regualr .280 Rem ammo in and it will properly fire-form. And there's the newer Nosler/SAAMI spec chamber, in which case it is .014" shorter than the orginal Ackley chamber. So you will either have to put your .280 brass through a new die-set that is cut to SAAMI spec ...Product Information. All 50 count listings of Peterson Cartridge casings come in one of their plastic ammo boxes. Made in the U.S.A. Warning: Only use Peterson Cartridge Co. casings in firearms in good condition, designed, marked, and chambered for this cartridge. Do not use Peterson Cartridge Co casings for "fire forming" or any other ...The .300 Norma Magnum generates .30-378 Weatherby ballistics from a non-belted case with a standard, radius-free shoulder. Few American ammunition manufacturers offer factory loads, wildcatters have already gone to work by Ackley Improving the case so that it has a 40-degree shoulder. Brass for the .300 Norma Magnum is available from Midway USA ...It is based on just one of several "7mm-06" wildcats, others including the .280 Ackley Improved and 7mm JRS. These last two remove the body taper, thus increasing powder capacity, and they are indeed every bit as fast as the 7mm Remington Magnum. The .280 Remington retains the gradual taper and gentle shoulder of the .30-06, and even with ...Extremely consistent, American-made brass rifle casings and ammunition, designed for long-distance shooters. The .280 Ackley Improved casing will launch a 7mm, 120 gr. bullet over 3,400 fps. The .280 Ackley has a similar velocity to the 7mm Rem Mag, when using light to mid-weight bullets.7mm Remington Ultra Mag 7 Products 7mm STW 7 Products 7mm TCU 3 Products 7mm Weatherby Mag 4 Products 7mm WSM 9 Products 7mmx57 Imp 2 Products ... FORSTER 257 ACKLEY 40^ FL SIZER & BR SEATER SET . 1. $111.99. Less than 5 in stock Item #: FR022431 FORSTER 257 RBTS FL SIZER & BR SEATER SET . 2. $111.99. Less than …There is the original Parker Otto "PO" Ackley chamber...In which you CAN shoot regualr .280 Rem ammo in and it will properly fire-form. And there's the newer Nosler/SAAMI spec chamber, in which case it is .014" shorter than the orginal Ackley chamber. So you will either have to put your .280 brass through a new die-set that is cut to SAAMI spec ...One of the greatest wildcat cartridges ever made, the .280 Ackley Improved was developed by the legendary P.O. Ackley after he added a 40-degree shoulder to Fred Huntington's .280 RCBS Improved. Since its inception in the late 1950s, the cartridge has continued to pick up steam among big-game hunters, especially those looking to extend their maximum effective range on medium- to large-bodied ...How has NASA improved food safety? Visit HowStuffWorks to learn how NASA has improved food safety. Advertisement When you consider the connection between NASA and food, your first ...280 Ack Imp - 160 grain 7mm (.284") Nosler 9% BA RE L ength /Mak B C Accu B ond® 9 0 % 8 7 % 10 % 9 8 % M AX IU S O .C L 95% 91% ** = Compressed load " Because Nosler, Inc. has no control over the actual components selected, the manner in which they are assembled or the280 Ackley Improved; 30-06 Springfield; 300 WSM; 6.5 Creedmoor; 6.5 PRC; Who Should Buy This Gun. I know this is an expensive gun, but for a $1200 gun, it looks, feels, and definitely shoots like a much more expensive gun. In the end, this gun is not for the hyper-budget conscious, as it is a bit pricey. It is a step up from what a lot of ...The 7mm Improved Arch is the same cartridge as the 6.5 Arch except it is necked up to accept the larger 7mm bullet. This is another very efficient cartridge especially well adapted for use in short and medium length actions. (Handbook for Shooters & Reloaders/Vol. 1 - P.O. Ackley, 1962) NOTE: USE THIS DATA WITH EXTREME CAUTION.A: When loaded to maximum in a strong, front-locking action like your Serbian Mauser, the 7×57 Ackley can safely drive a 130gn bullet at 3120fps with 55gn of AR2209; a 140gn bullet to 3010fps with 54gn of AR2209; and 160gn bullet at 2817fps with 52gn AR2209. These loads were safe in a Turkish Mauser with 24" barrel, but work up from two ...The 7mm SAW is basically an improved 7mm-08. 2750-2775 FPS in a 26" tube is doable in a regular 7mm-08 with an 162 grain bullet, because I've done it. ... A friend sent what he thought was some my 7mm Ackley cases but it's not. In the pic left to right is a 7mm-08 Ackley, middle measures and looks to be the saw case and on the right is a ...306. Location. E. Wenatchee, WA. 98802. Nov 10, 2021. #11. I had a 7mm-300 weatherby built before the stw was out, sold the weatherby to buy a stw because of factory ammo. The 7mm-300 was better on brass than the stw , Iv'e been trying to buy it back for years. G.The .280 Ackley Improved uses a 7mm/0.284-inch bore bullet diameter, not unlike .280 Rem, 28 Nosler, and of course, 7mm Magnum. Rifle Selection.The stock finally arrived, so I got my gunsmith in gear, and we did an experiment. I asked him to take a Tikka 7mm-08 barrel and re-chamber it for Ackley Improved. We just needed the pilot to make it into the rifling for it to work, and it did. He chopped it down to 17” for me, and threaded and crowned the muzzle.7mm Remington SA Ultra Magnum; 7mm Remington Magnum; 7mm PRC; 7mm Remington Ultra Magnum; 7mm Shooting Times Westerner; 7mm Weatherby Magnum; 7mm-08 Remington; 7x57 Mauser; ... 280 Ackley Improved 160gr Partition Trophy Grade Ammunition: Country of Manufacture: United States: Box Qty: 20: Manufacturer SKU: 60044: Type: Ammunition: UPC: 54041600446:C. B. Ackley’s method was simple, he used a headspace gauge .004ʺ shorter than the SAAMI minimum chamber as a GO Gauge. The shoulder angle on the gauge was still the same as the parent chamber. Ackley used the shoulder and neck junction as his gauging point not the datum line of the SAAMI chamber. So the SAAMI GO dimension becomes …Our Pick: 140-Grain Trophy Copper 280 Ackley Improved Velocity at 500 Yards: ... ~16 ft.-lbs. 7mm Remington Magnum. In his famous book, “Cartridges of the World,” Frank C. Barnes describes the 7mm Rem. Mag. as a “fine long-range, big game cartridge.” We should all aspire to such high praise.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 ...P.O. Ackley described his .250 Savage Improved as one of the best of the so-called "improved" cartridges. He went on to add that "it shows a greater percentage of increase in velocity than almost any other." ... Wisconsin, had lengthened the magazine of the rifle and rebarreled it to a 7mm cartridge on the .308 Winchester Improved case .... 7mm Ackley Magnum (P.O. Ackley Data) Warnin7mm-08 Remington Ackley Improved 40° Chamber Reamer Info / Options. 7 Banana Belt, Montana. Nosler's 7x57 data is pretty "modern," and it's available on-line. If they don't list the powder you want to use, try 7mm-08 data. The 7-08's powder capacity is a little less than the 7x57's, so produces a little less pressure in "modern" 7x57's. In answer to your original question, no, the 7x57 Improved isn't worth the ...280 Ackley Improved Vs. 7mm Remington Magnum. According to Nosler reloading data, although the 7mm Remington Magnum does not provide more than 50 fps over the .280 AI with similar projectiles, the latter cartridge holds less powder in its case, thus it is considered more efficient. Picking three of my favorite test rifles, eac Banana Belt, Montana. Nosler's 7x57 data is pretty "modern," and it's available on-line. If they don't list the powder you want to use, try 7mm-08 data. The 7-08's powder capacity is a little less than the 7x57's, so produces a little less pressure in "modern" 7x57's. In answer to your original question, no, the 7x57 Improved isn't worth the ...Alaskan Ballistics - Today on Alaskan Ballistics we're comparing the .280 Ackley Improved vs. the 7mm Remington Magnum. What do you all think? Fred's version had a 30-degree shoulder angle and held...
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