6mm Ai Vs 243 Ai

5 creedmoor. I'm starting to lean toward the idea of the Ackley because A. Brass 243 Brass To 6. If you are using longer bullets and need your throat/freebore extended we require 3-4 full length sized dummy rounds (no powder, no primer) sent to us for this purpose. Atlas shows past enrollment data about U-M courses, instructors, and majors to guide U-M students, instructors, and staff in decision-making. Well I need a gun that will shoot flat as hell, recoil little and ignore the wind as best as possible. Ackley, was one of the most important gunsmiths and ammunition designers of the 20th century. I recently helped a good friend put together a 6mm Ackley Improved. I have two of these same barrels in 243 caliber, and was wondering if it's possible to ream one out into a 6mm AI without cutting too much off the length. Readers interested in more information about the 6mm PPC and 6mm BR,. You take 243win brass and neck it down to 22 cal, and load it. 6mm-06 case volume is very similar to the. 243 Winchester; 243 AI (Ackley Improved) 6mm Dasher; 6mm BRX; 6×47 Lapua; 6mm Creedmoor. 6mm Rem AI vs 243 vs 6mmX284: Post Reply : Page 1 2 > Author: The top dogs are all shooting 243 AI, 6mm, 6mm Rem AI, 6,5 x 284. Here are drawings of the chamber reamers that were used to chamber my custom rifles. The HD ai has a tendency to steamroll one player, then just form a massive deathball around their original tc. 243 Winchester ammunition ballistics Chart. McWhorter Custom Rifles builds all custom rifles to benchrest standards. 280 Ackley Improved ammunition! We have the best brands for your rifle at the best prices, ready to ship right to your door!. 243 AI WILL go faster, and you can buy good Lapua and Norma brass from many vendors. For sale is my special build Accuracy International / Remington limited edition comprising an AI AXMC fully adjustable folding tactical stock in desert colour and a super compact 16. This is a gain of just 3. All bullets were loaded to just touch the rifling. in the 22-243 and 6. 6mm SUPER LR (2010 project) by Barry O. The 6SLR can get the same velocities as the 243, with a long neck and a better shoulder angle. Atlas shows past enrollment data about U-M courses, instructors, and majors to guide U-M students, instructors, and staff in decision-making. In addition to Hornady, Barnes, Federal, Nosler, and Remington all currently produce 6mm Creedmoor factory ammo. The 6mm-06 is far too much cartridge for prairie dogs, but its ability to push bullets of high ballistic coefficient at high speeds makes it a great candidate for shooting rockchucks and eastern groundhogs at extremely long ranges. Who's the winner? Prior to the 1950s the most successful American 6mm/. 29, 2019 /PRNewswire/ -- Saykara, the leading AI Virtual Assistant for automating clinical documentation, announced the appointment of industry veteran Dr. What about 243 AI? Looks like you can shoot 243 Win and 243 AI accurately if properly setup. Of course, discard any cases that show a split anywhere on the case. brass is cheaper B. The 6mm BR is known to be one of the most accurate cartridges produced, especially at mid range distances to 600 yards. Jewel trigger and Leupold 6. 22's to 87 grain 6mm's, even slightly better than the 243AI ballistics at longer ranges. 6mm Remington Ackley Improved (Sierra Data - Edition V) reloading data with 0 loads. Wanting it for coyotes. Hunlee been looking around on the world wide web and has come up with good question for all fello handgun hunter forum member?????Of all calliber that hunlee list above with one is best going today?????Hunlee like shooting Contender so these are calliber that Hunlee has in mind!!!!!Hunlee thinking of selling super 16 45-70 barrle when factory retern it to Hunlee and then Hunlee want to add one. himself rarely called his designs the 6mm or. Mine is a screamer 70gr Nosler BT 4,000 + with Re#17. Watch Jeff shoot a 3 shot. As for a standard. This is my first 6mm since I started hunting at age 12 with a 243. 300 Win Mag AI 8mm-06 AI 8mm-348 AI 35 Whelen AI. It will do anything you want to do with varmints, any kind of varmint. The advent of the 6mm Creedmoor immediately had folks necking the hornady 6mm down to 22 cal and upon doing so found virtually the perfect case capacity for heavy weight. 257 Roberts AI. I hunted coyotes, chucks, crows, jack rabbits, never had to shoot more than 450 yardsI just liked to blow the hell out of them, then hang them up in a tree and do some bullet testing on themif there was anything left. I used new Lapua brass with both 77 SMK and 77 TMK bullets. 5mm, not 6mm, it is a short action. Stocking levels subject to change. 5 Creedmoor, 260 Remington, and 308 Winchester. 6mm match bullets for "across the course" highpower rifle competition at 200, 300 and 600 yards, although it has many other applications. No matter what the. As for a standard. We have 2 reviews of Teac AI-2000. Easily share your publications and get them in front of Issuu’s. Parker Otto Ackley (May 25, 1903, Granville, New York - August 23, 1989) was an American gunsmith, barrel maker, author, columnist, and wildcat cartridge developer. they need long barrels to bring to make them shine. 5 lbs (or your spec), Obendorf custom bottom metal. Measure the outside diameter of your loaded rounds and subtract 0. I'm a 6mm fan, 243, 6br, 6mm x47 Lapua. 243ai dasher - most accurate and efficient. 243 Winchester. 79,936 patents were filed in the United States between 2010 and 2018, with the majority being in the health field (32. I already have a load which shoots a 3 shot group which you can cover with a quarter at 200 yards if the shooter does his part for the 95 gr. 6 Creedmoor vs. ???? I'm curious what the consensus would be on which 25 caliber to pursue for a "woods rifle for light skinned game and occasional varmint control". 75 velocity 1595 fps at 1000 and 1341 fps at 1200. These 280 AI cases are topped with 140-gr. Brownells is your source for Case Gauges & Headspace Tools,Measuring Tools at Brownells parts and accessories. 5 ounces, respectively), makes for a condition where the Magpul PMAG AC will not drop free easily. 260 Remington) but with a long neck and the proven 30 degree shoulder angle that is seen so often in the top performing accuracy cartridges. If you are looking for. 5 Creedmoor as a parent case and performs similarly to the. Get the right Die or Die Set for your press here at Midsouth. vs is an upcoming fight for Shooto / Torao Nation State. 257 Roberts data. I've measured my fired 6SLR cases compared to brand new WW 243 cases and the water capacity is the same. In 1963 Remington produced both cartridges using their own sourced brass, primers, powder and bullets. We are excited about this comparison as both of these cartridges show tremendous versatility in both the hunting and competitive shooting worlds and not a lot of information is out there taking a look at these two cartridges stacked up side by side. 243 Ackley Improved Reference Page. i guess if you wanna burn your. 6x47 - is the winner. 243 Winchester drawings. 243, 6x47 lapua, and 6. It did half health. i went with the 6MM AI for the velocity with a little heavier bullet. aitoday, AI-Today. 243, or the improved version. I had been waiting on my Manners MCS-EH1 to build me a short, light bolt action. This replacement magazine is a factory original from Ruger. As far as Im concerned, making a 6 Creedmoor is a marketing gimmick designed to catch a larger fan base than calling it 243 would do. I've already got plans to build a 6XC so that would be my choice/median between the 6mmbr and. 1500 20 […]. Get out to 300 yards and the bullet drop difference with the same bullet is about 3" between the 3 cartridges mentioned. 5 grains (10%) more case capacity than the standard 6BR–good for an extra +130 fps with a 105gr bullet. Spotting well-camouflaged leopards within these photos is a labor-intensive task that AI can accomplish in minutes. H andgun: PSI: R ifle: PSI: R ifle (Cont. Get updated with subscribe our newsletter. 243-inch neck diameter. I know the AI isn't as hard as on the brass. The 6mm-06 has gained in popularity ever since, and has become one of the most popular wildcats. 243 and 7mm-08. 243 AI is overbore and will eat barrels. and 6mm Rem. As a family of shooters, we at COR®BON understand your needs from self-defense, competition, hunting, law enforcement, and military. If you are using longer bullets and need your throat/freebore extended we require 3-4 full length sized dummy rounds (no powder, no primer) sent to us for this purpose. Though I dote on the. 243 AI or 6mm AI. 22-250 Ackley Improved, we suggest the following procedure: Start with standard. My first knee-jerk reaction was to go with the perennial choices of the 6mm Remington Ackley Improved (6mm Rem AI) or the. Get the right Die or Die Set for your press here at Midsouth. 22 cal 55grn bullets out there only to have the wind blow them off target 30in at 400. Here we have a pair of all-around 7mm cartridges which may be closer in performance than you think. 6Mm Remington vs 243 Winchester. More balls than the 243 win, Rem just could never get the twist right. I have a 6-284 and my idiot ex-hired man had a 243 AI and they both shoot well. Today Ackley is know for his Improved Cartridges. AX/AXMC Rifle Mags; AE/AW/AT Rifle Mags; AICS, AT Chassis Mags/Legacy; AX Chassis Mags; AI Accessories; AI AX Stock Conversion; Barrels. Adding to your cart. 308 if you make your own. Re: 6mm AI or 243 AI? Barrel life is a near wash, the 6mm has more case capacity in the brass so if you load to standards it will have a slightly shorter life. An in-depth look at the 243 Win vs. As bullets move downrange, they have a flight path of a parabola. great caliber and brass available. 257 Ackley Improved cartridges, a gunsmith must set the original barrel back about 0. plus it will feed flawlessly. In my research I find that 243's are erratic in performance when handloaded and that it might be the throat design hence use 243 Ackley. I was wanting a 243 AI I have a regular 243. In our Forum recently, there was a discussion about "improved" cartridges based on the. I can have fun while fire forming C. 243 AI WILL go faster, and you can buy good Lapua and Norma brass from many vendors. Note that not all Twist Rates are available for all Calibers. 223's but never a. 243 AI I mean slight differences in catridge base to neck measurements im sure but to me, they are practically the same round. 243 AI LOL Forgive me for posting this and I dont know if anyone suggested it but why not just re-chamber for a 6mm? You would get as much or maybe a little more of a boost and then if ya wanted an ai still u could just do the 6mm ai and be way ahead. thats pretty quick for 70 grs. Ek moes maar my bek gehou het. It is a bit heavier than the. with heavy bullets and the right twist they are very effective. The 280 AI can be bought as factory loaded ammo or custom loaded ammo. 243 vs 6mm Creedmoor vs 6. 3 bullet diameter reducing dies bullet frontal area dakota cartridges effective game killing heavy game cartridges homogenous copper bullets hornady eld-x and eld-m load data pdfs rocky mountain bullets sst bullet annealing upcoming cartridge. ???? I'm curious what the consensus would be on which 25 caliber to pursue for a "woods rifle for light skinned game and occasional varmint control". below is a. The 6mmAI, is that the 6mm Remington AI? Twice the barrel life of a 6mm-284? That would be hard to prove. Quite frankly, when using the small bullets (50gr and less) the 22-250AI gives up very little to the 22-243. I have and shoot a. Recruitment companies and recruitment agencies have entered the technology world and today have many options open to them which enable them to deliver top notch recruitment services. 56097 243 Mashburn Improved 30° (JGS) 5w G 3 56098 243 RCBS G 3 56099 243 Rock Chucker (JGS) G 3/11/ 56100 243 Super Rock Chucker G 3 56101 244 Ackley Improved 40° (JGS) 5w (6mm Ack Imp) G 3 56102 244 H&H Magnum G 4 56107 6mm Bench Rest Remington G 3 56823 6mm Bretschneider G 2 56111 6mm Donaldson Wasp G 2. Ackley, was one of the most important gunsmiths and ammunition designers of the 20th century. The 6mm Creedmoor has found favor with Precision Rifle Series (PRS) shooters, a rather arcane long range, steel target, timed shooting competition in which AR-10 rifle actions are popular. Shooters might refer to it as a 280 Ackley or a 280 Improved. Same story with the 6mm Ackley. Call (570) 368-3920 or order now. case capacity. The arrival of Ruger's new. 5mm-06 (Article by Chuck. Wilson Trimmer Case Holder provides the ultimate accuracy and uniformity for trimming your cases. The official box score of Women's Volleyball vs Notre Dame College on 10/12/2018. Gun includes Talley Rings and bases, Simmons 6. Si vous voulez m'affrontez envoyez-moi un défi :) J'aime particulièrement le gambit dame et l'espagnol. `~ 0 e 2 j 4 p 6 u 8 z# : S M > Y @ B 2 D F H J L N 4 P R T V X Z } \ q. I used Water. I shoot a 243 wildcat I call the "243Cutright",it has a little less capacity than your 243 AI. 243 with a 115gr bullet. 243 and significant advantage in case life due less case neck extrusion. The action, for sale by Stroker Ace on GunsAmerica - 991864832. I'm now down to two cartridges for my build, the 6mm Ackley Improved and the 6mm/. 257 Roberts, which brings us to his. The company has been at the forefront of the paradigm shift from apps to chatbots, having built a robust set of technology and tools that enable any type of conversational application. I find ths to be a most excellent cartridge in terms of both velocity and accuracy. Vs - Show detailed analytics and statistics about the domain including traffic rank, visitor statistics, website information, DNS resource records, server locations, WHOIS, and more | vs. 223 AI 22-250 AI. All types of rifles: AR-15, bolt-action, semi-auto, hunting and tactical from brands like Remington and Winchester. 3490 17 Remington 0. 240 Weatherby. My elevation settings at 1000 yards from a 300 yard zero are; 6. All other things being equal, the case capacity of the AI should yield about a 2% increase in velocity over a standard 6mm. 3 bullet diameter reducing dies bullet frontal area dakota cartridges effective game killing heavy game cartridges homogenous copper bullets hornady eld-x and eld-m load data pdfs rocky mountain bullets sst bullet annealing upcoming cartridge. J veux travailler mais commant faire ? j'ai ùn deplome mécanique theqnicien + bac. *To fire-form brass, use the faster-burning powders and loads from standard. My very own 7mm-08 A. Sent from my SM-G965U using Tapatalk. similar to a. Robert Whittaker faces Israel Adesanya in a UFC middleweight title unification bout in the main event of Saturday's UFC 243 fight card. In the two 6mm calibers I shoot berger 105 hybrids and in the creedmoor I shoot 140 a-maxes. Brass 30 Luger Brass. Well, the same friend of mine who has the 243AI also did up a 6mmAI! Well, lo and behold, the 6mm was only a tad faster that the 243 and used more powder to do it. 560" (the location of the 243 shoulder per faucettb's drawing) from the case head. In my experience, the 243AI takes you to roughly the 6mm plain velocity. Get the right Die or Die Set for your press here at Midsouth. A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store, and participate in the. Thus, it is ideal for the. Share your thoughts, experiences and the tales behind the art. It will drive a 100 grain bullet about 150 fps faster than the 6mm Remington or. (score of 99-4x grouping. 257 Improved. Army Rangers, U. The case neck will need to be reamed or turned after final forming. Posted by Izzy Chapa on Oct 5th 2018 Ordered a medium palma prefit quality is outstanding and easily achieved 5 shot groups less than 1/4 moa with reloads barrel cleaned up exceptionaly well with little to no copper fouling A++++ highly recommend this barrel. George at GAP is shooting a standard. You should expect to see more of these stories asking how we can put the AI genie back in the bottle. Brass 243 Unprimed Brass. But the short, fat. 5 Creedmoor has a lot going for it. 257 Roberts data. 243/6mm? I have a Tikka. Shop our vast selection and save!. 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. Compare the 6mm Remington drawings with the. I have two different versions that use a blown out 25/06 case with 30 degree shoulders,a 240 weatherby,and two 6mm AI's. Download all the duke vs kentucky history icons you need. 257 Roberts Improved (Article by Chuck Hawks) The 6. Case Trimmer Collet 6MM XC TUBB. Ai GM 243 LS2/LS6 Performance Rebuild Cylinder Head Package Our Performance Rebuild suite of inspection and machine work is a great option for the value minded. If starting from scratch the 6. The nice man behind the counter handed it to. Brass 223 Steel Vs Brass. But, I also believe the popularity of the. This site uses cookies for analytics, personalized content and ads. Maybe a 6mm-06. 243 is one of those "overbore" cartridges that has a fairly large case capacity compared to the bore diameter. Spotting well-camouflaged leopards within these photos is a labor-intensive task that AI can accomplish in minutes. INDEX A Acetate anodizing sealers, 270 Acetylene compounds, inhibition by, 152 Acetylenic compounds, vs HCl on Fe, efficiency, 154 Acid Boric, barrier film on AI, 280 Boric formamide, AI oxide film, 304 Chromic, anodizing process, 245 HCl, activity coefficients 175°C, 39 HCl vs imidazoles, polyamines, and aliphatic compounds, 193 HCl, Zn ion reduction rates 100 °C, 43 HF vs bisulfate. Because of brass spring back, the chamber itself is slightly larger than that, so you are fine with reaming the 6mm AI in the 243 chamber. azshooter, explain why you do not have to fireform the brass for an 243 AI. Ruger Rifles in 6. Robert Whittaker faces Israel Adesanya in a UFC middleweight title unification bout in the main event of Saturday's UFC 243 fight card. N133: This speed is very close to IMR 4198 in quickness. When going heavier (55-70 gr bullets) the 22-243 will be the most efficient of the overbore 224 cartriges. thats pretty quick for 70 grs. BI/O Analog Switch Input / Output 4 IN/OUT. Brass 24 Ga Brass Shotshell. LCG started as a custom rifle builder, but we now also specialize in unique reloading tools, AR rifle building tools, alongside our custom rifle builds. 243 winchester | 243 winchester | 243 winchester ballistics | 243 winchester rifle | 243 winchester ammo | 243 winchester ar | 243 winchester reloading data | 2 Toggle navigation keyfora. For a cartridge comparison such as the. But, I also believe the popularity of the. Advanced induction for the win! TEA is very good but since AI worked on that head originaly for gm I have to give them the nod. 243 Ackley Improved, a Hogue Overmolded stock with full-length aluminum bedding block and a Leupold VX-3 AO in 6. 243 shoulder cleans up which means you will have to move the barrel shoulder forward and remove about an inch of the tenon. 240 Weatherby Magnum is easy. 00 2d 12h 51m 16816656: 65x Vintage 6mm Lee Straight Pull Ammunition Win, & Rem. 30/40 Krag (Item #0006) 25 Krag 22/243 Win 243 Win 260 Rem 308's 338 Federal. As a family of shooters, we at COR®BON understand your needs from self-defense, competition, hunting, law enforcement, and military. 243 Winchester, but it's the ability to properly seat the longer bullets with the best ballistic coefficients that gives the 6mm Creedmoor the edge out beyond 500 yards. Wilson Trimmer Case Holder 243, 280, 6mm, Ackley Improved (Standard) The L. The one I'm leaning toward is a 20". Please try again later. 257 Roberts was a better, more versatile cartridge than the newer. 5 creedmoor. 243 AI delivers more velocity by virtue of enhanced case capacity--roughly five grains more H20 capacity than a standard. The 6mm AI is said to have longer throat life since the neck is longer. SP Amp Variable Gain Amp Single ±6V 8-Pin SOIC Tube. 280 Ackley Improved ammunition! We have the best brands for your rifle at the best prices, ready to ship right to your door!. 243 Winchester. So you get higher velocities. The improved shoulder of the. The whole AI premise is to increase case capacity by raising the shoulder of the brass. Brass 30 Luger Brass. The 6mm AI is ALL the cartridge any varmint hunter needs. 5 Creedmoor vs. It is touted as being one of the most accurate long-range 6 mm rounds in the world that is designed for repeating rifles. I didn’t catch the twist rate of this rifle but my 243 has a 1:8 twist and it likes the smaller bullets. It seems that the 243 case is probably the more efficent and is optimal for this caliber. Case Trimmer Collet 6MM XC TUBB. Brass 243 Wssm Brass Midway. Ackley mentioned is, of course, the. As a family of shooters, we at COR®BON understand your needs from self-defense, competition, hunting, law enforcement, and military. The ridle is a S&W 1500 Action with a 26" Hart fluted barrel, Tubb Recoil lug and a Rifle Basix trigger set at 2. Check out our chambers list! Match Grade Machine offers custom barrels in the most popular calibers for Contender G2 Thompson Center Encore and Original Contender Savage and RemAge! 450 Bushmaster 6. I'm sure there are folks who will claim an additional velocity gain and that's fine. 800 inches, most bullets can be seated with their rear bearing surface above the case shoulder. 243 vs 7mm-08 vs 308 Ballistics. Look no further for your. A little faster than the 243 AI but not a whole lot. vivre d'amour et d'eau fraîche 🍹 future 👩🏼‍🏫. Midsouth offers great deals on all kinds of 280 Ackley Improved Centerfire Rifle Ammo. Can get the velocity I want without the pressure signs the same velocity produces in the 243 AI. They will not be as reliable. Most well know of all is probably the 280 Ackley Improved, because Nosler decided to take it to SAAMI and make it a "factory" cartridge. Today Ackley is know for his Improved Cartridges. Re: 6mm AI or 243 AI? Barrel life is a near wash, the 6mm has more case capacity in the brass so if you load to standards it will have a slightly shorter life. After working up a load in my 6mm AI having a 1-8 twist bullet I was ready to shoot rock chucks. 6MM Ackley Improved VS 6-284 - posted in Guns, Loads, Optics and Gear for Varmint Hunting: Ok guys I want to hear everyones opinion on this one!!! Pros and cons of both. 243 WSSM, and. 257 Roberts, 257 Roberts Improved (28 deg),, 257 Roberts Ackley Improved (40 deg)—Which caliber to build or buy a rifle in…. Winchester press 1972 Edition. 223 AI 22-250 AI. And in a 10-twist, it is the best 1000-yd varmint caliber you can get your hands on period. AI versus Deep Learning. Maybe the 6mm Creedmoor has the potential to rival the. While we have went to great lengths to make sure that it's as accurate as possible this rendering should not be used to generate specs for casings. Brand: Shaw Barrels. Learn more about Pyridoxine (Vitamin B6) uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Pyridoxine (Vitamin B6). 243 in any way. BI/O Analog Switch Input / Output 5 CONT. 308 AX308 Pale Brown (Tactical Muzzle…. Navy Seals, U. 3 grains 7 x 57 Mauser = 59. Hi we run 2017 standard. The hang up for the 6mm is to load your rounds out long you really would do better with a long action. 30-06 Springfield wildcat cartridges are cartridges developed from a 30-06 Springfield "parent cartridge" through narrowing or widening the cartridge neck to fit a smaller or larger bullet in an attempt to improve performance in specific areas. We killed two cow elk, an antelope, and a Barbary with them all at closer ranges 80-250 yards. The 6mm BR is known to be one of the most accurate cartridges produced, especially at mid range distances to 600 yards. 243 Ackley) manages to squeeze out another 100 fps. Testing at 100 yds. It did half health. To fire-form for the. I know the AI isn't as hard as on the brass. Select a light load of relatively fast powder (IMR4895 is great) from the standard 22-250 Remington data. Now, after 70gr and up, the 22-6mm rem takes over. The customer service was awesome too - the X-caliber rep I talked to was great, we discussed fluting options and I ultimately felt comfortable with the specifics of my order - 24" Cromo, heavy contour, 8" twist, in. Both are going to be fairly hard on the barrel. 243 Ackley) manages to squeeze out another 100 fps. 243,but they are nearly the same,i think the Rem round might be 80-100 fps faster in some bullet weights,well that was what I was told. Marines, U. AXMC; AX/AT; AI Rails; AI BackPacks & Drag Bags; AI Backup Sights; AI Gun Care; AI Scope Mounts; Adapters; Spuhr. The 6mm Rem Imp 30 degree would be a cool one George _____. 22-250 vs 243 ??HMMM Well 22-250 is fast and flat And 243 fast and flat Anyone that says that a 243 is not a flat shooting that sob is full of it. 22-243 Winchester vs 22-243 Middlestead vs AI ? Just checked AmmoGuide and found 2 variants of the 22-243. Choosing between the 6mm-06, the 6mm-284 and the. Here are drawings of the chamber reamers that were used to chamber my custom rifles. How do I determine what diameter to hone my Sizing Die to? A. The 6mm-06 AI is definitely overbore but that doesn't mean you won't get more velocity out of it. Here's the dealI just ordered a new Remington 700 VLS. 24/6mm caliber into the limelight. - 8" * Ratchet rifled 4 groove. 308 when you shoot 180-220 grain bullets. 244 Remington Improved. The longer neck of the 6mm Rem makes it the best suited for long barrel life. He is perhaps best known for his development of “wildcat” cartridges in which his main method was to increase the powder capacity of existing rounds. Re-chamber. As far as Im concerned, making a 6 Creedmoor is a marketing gimmick designed to catch a larger fan base than calling it 243 would do. These 280 AI cases are topped with 140-gr. Today, I would buy a HB quality rifle in. 5x284 is an easy neck job in the 6. 6mm Remington is an outstanding cartridge and it does have a reputation for a slight accuracy advantage over. In spring 2007, I had George Gardner of GA Precision chamber a 26-inch medium-Palma contour 6. 13 - Artificial Life System Bibliography - artificial life complex systems - artificial life,AI,chaos,fractals. 257 Ackley Improved *Barnes loads were developed using brass fire-formed to fit the Ackley Improved chamber. 250 Ackley Improved 6 x. 250-3000 Ackley Improved (Article by Chuck Hawks) The. I'm now down to two cartridges for my build, the 6mm Ackley Improved and the 6mm/. 243 in a heavy varmint gun. 243 Ackley Improved.