It uses a .300 WSM (Winchester Short Magnum) case shortened and necked down to accept a .243in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. anyone out there that can enlighten/update the rest of us on the likelihood of the “sun-setting” of this patent? The ballistic performance of the .243 WSSM based off 5 grain types are 4,068 ft/s (58 gr), 3,707 ft/s (70 gr), 3,545 ft/s (80 gr), 3,280 ft/s (90 gr), 3,136 ft/s (1… baydog said: See my blog entry. .243 WSSM ( Winchester Super Short Magnum ) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. Re: 25 WSSM I've got a 243 WSSM AR for a match gun, the 1-10" twist pretty much limits you to 90 gr. The reason that I bought the rifle that I now want to toss into the nearest body of water, was that Winchester Arms touted it to be the best thing since sliced bread. The only problem I have with my Olympic arms .243wssm is ejecting. On the other hand, every load I tried with the 75 grain Hornady V-Max shot well. The 243 WSSM is that good, in my opinion. Yes, but the RL17 is just perfect for the 243 WSSM. Since it appears to me that the patent deals very oddly with a mathematical formula, rather than a specific, tangible thing one would build. factory load as above with different rifle. John says that, at least for a sling shooter, the .243 Win is hard to beat at long range. It mentions specifically only “Short Action” rifles, but it isn’t an actual particular shape of brass or bullet that is proprietary. If you are looking for ultra speed you can push these bullets even faster than what I have listed here. Stay with me here. The overwhelming complaint expressed about this round was how hard it fed or failed to feed. Joined: Aug 3, 2005 Messages: 692 Location: Austin, Tx. Awesome Accuracy! Winchester's purpose was to ensure that there would be ammunition on the market (and that's a good thing). In fact 243 WSSM uses parent brass from another caliber! Calling in my order for the D Tech 243 WSSM upper tomorrow This was one of my first test loads and it shot so well I didn't mess with it any more. Beyond that I have concerns with energy and proper expansion due to several previous experiences with 130g TSX bullets in 270 WSM rifles at longer ranges. You can read more about my thoughts on the Triple Shock in my Recovered Triple Shock Bullet journal entry. Mechanically speaking (read Late Breaking News (below) for detailed back story), what really torpedoed the chances of the 243 WSSM being well embraced, was how it interfaced with Bolt Action platforms. If you're unsure, or just want options, check as many boxes as you'd like. The incredibly steep shoulders of the case from neck to fat magnum body meant it had a really hard time feeding in a bolt action platform. Are all of these Bolt Action guns or are they ARs/Semi-Auto? .243 WSSM / .243 Winchester Super Short Magnum (IMR Data) reloading data with 52 … If people desire a .243 AI chamber, then there's a reason for the .243 WSSM. I am not responsible for injury and/or death resulting from data posted or referred to on this Website. OP. In fact, Tom Spithaller, Director of Sales, Olympic Arms, Inc., told me their 243 WSSM demo rifle, made in 2004, is still used regularly, and has approximately 8,000 rounds thru it. This is for a 90 grain bullet but at least it will give you a starting point. As importantly, am I hoping to get some attention from ammunition manufacturers on this caliber. To maximize performance, the ballistics experts at Hodgdon Powder Co., Inc. have developed a comprehensive Reloading Guide to provide handloaders with current data for Accurate Powders. In a few particular circles, it has been efficiently used as a Law Enforcement sniper caliber as well. Not factual. 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If I won the lottery, I would order up 50,000 rounds of the stuff and get it into the market so I could start cranking out more 243 WSSM chambered AR-15s. I confirmed a portion of this from Olympic Arms, Inc. Reloaders are urged to be careful not to either under or over load the .243WSSM, as this is a pressure sensitive cartridge. The way bolt actions operate meant there was not enough engineering put into getting that short little round keg of spitfire up and into the chamber. The 223 and 243 wssm were plagued by the extreme overbore lack of performance along with the 500rd barrel life. Re: 243 WSSM load data / 243 Win load data [ Re: bobnob17 ] #12172669 07/28/17 Joined: Nov 2013 The most suitable powders for the .243 WSSM are the medium burning 4064 and Varget for light varmint bullets while medium slow burners such as H4350 and IMR4350 are the optimum choice when loading 85 to 105 grain bullets. Load Data. However, Winchester Ammunition appears to me to really be focused on loaded ammo these days and not on producing brass for pretty much any cartridge, let alone the WSSMs. It will last a long time. Sub MOA. They never take a step. Three are being offered as just an upper for $1,499 and will also include the two boxes of ammunition on a first come first serve basis. The original caliber has a heritage that makes the conversion to a Super Short Magnum seem very reasonable and, generally, a pretty good idea. Even though the .25 WSSM is a "magnum," its modest case capacity really calls for standard primers. That just so happens to qualify the AR-15 platform actions as perfect! Reservations taken at 719.276.0341 or [email protected]. Oh Yea, the .243 Winchester! Wanting to try out some loads for my son but can't find load data on this bullet. Could probably add a grain or two more of powder as I had no pressure signs with this load. First, know that the shape, mathematics, and engineering behind the case design is very important. .243 WSSM (Winchester Super Short Magnum) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. I think you made a great choice. Incorrectly reloaded ammunition can cause serious personal injury and damage to the firearm due to excessive pressure. The ADI brand is owned by Australian Munitions, ADI World Class Powders & Ammunition products are proudly Australian made and our commitment to the local reloading community is stronger than 223 WSSM 223 WSSM Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. USA -(Ammoland.com)- To begin with, there are statements in this article that are purely my own, and my opinions are obvious and blatant. The distributors who have heard of it have never seen it, and others have never heard of it. AmmoLand Giveaway – 5,000 Rounds of CCI Blazer 9mm Ammo FREE! The .243 has been a great round, accurate, flat shooting and hard hitting. My source was also surprised that the patent was awarded due to such vagueness and the fact nothing is being manufactured. ... From what I have read they are worth the wait. Mostly work and some play he as traveled/visited 20+ countries. where can i get clean new brass for 243 wssm? Powders include Alliant Strongbad Member. Next step is to put pressure on Winchester to make another production run of this caliber. : 0.200 VELOCITY (FPS – feet per second) POWDER 4100 4200 4300 4400 4500 4600 The patent isn’t on something someone manufactures physically per say, but basically a theory. I will rebarrel it to the same when I shoot it out. Great Accuracy! I neck up the 223 wssm cases for my 243 wssm and have shot thousands for rounds…..they are less expensive than the 243 Wssm cases. Oct. 15th 2010: I broke a decapping pin during development of the 95g Partition load and purchased another decapping/Tapered Expander assembly that is one thousandth of an inch larger in diameter. Improper reloading is dangerous. *Most Accurate Load C Compressed Load 1. Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading.Occasionally, we will temporarily publish load data on this page when a bullet becomes available and is not yet listed in the latest edition of the handbook. I would easily venture there are WAY more AR-15s sitting around than there are AR-10s on the market, that in just a few moments and by popping out two take down pins that AR-15 can now be converted with an upper to a hunting rifle just that easy. Start Vel. By that point we had licensed Hornady to produce the cartridge and they offered to sponsor it through the SAAMI certification process. If you are interested in the most recent data for cartridges and/or bullet weights/styles not listed on this page, contact Barnes Consumer Service department to inquire about recommended loads and approximate timing for the data to be made available via email at customerservice@barnesbullets.com or by phone at 800.574.9200.. With cycling problems solved, it provides one of the highest velocity options in the AR-15 platform:  pushing a factory 55gr bullet a screaming 4,050+ fps muzzle velocity with a mid to long range effectiveness like never before. I solved it with a chopped up credit card in the magazine. One of these is a Supreme load using a moly coated 95 grain Ballistic Silvertip bullet (BC .379, SD .230) at a muzzle velocity (MV) of 3250 fps and muzzle energy (ME) of 2258 ft. lbs. 243 WSSM ( Winchester Super Short Magnum ) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. Targeted velocities are well in excess of 100 fps over the best published handloads and even larger gains over factory ammunition! It became pretty obvious to us that the cartridge had universal appeal and application and we came to the conclusion that the full potential of the cartridge could only be achieved if we stopped limiting access to it via the trademark. Save that abuse for your recreational, competition, and fun range time with calibers that are more affordable to shoot. Powders include Hodgdon, Winchester, IMR (as we’ve not seen those yet), Email him directly thru: VictoryDefense.com (Comments Section) or thru ARHunters.com, 243 is one of the best all round cal // I had very good result use 85 -90 gr bullet on deer of all size and type out to 400 yrds. The magazine and bolt interface in the AR-15 is simple. This is analogous to Freeware in the software industry, or the fact the AK47 was never patented. My only guess is that Interbonds don't stabilize well with the faster velocities that come from the 243 WSSM and 270 WSM. http://www.thediyhunter.com/243-wssm-general-hunting-shooting/95 It does appear that Winchester Ammunition has just recently started making nickel plated ammo again after 10+ years. I need to look up the load data on the 243 wssm. The design and function of the AR-15 platform perfectly offers the mechanical solution which the 243 WSSM lacked in a bolt action. I still would like to get a few more rounds on paper with it to be sure but I haven't ever really had any accuracy issues with this bullet. His current pet project includes a new website promoting the Modern Sporting Rifle like it truly is intended to be with ARHunters.com & social media by the same name. I tweeted at Winchester earlier in the summer and they told me there would be 243 WSSM brass later this summer. As far as I can tell the 243 Win and 243 WSSM have the same case capacity. Once you have a correctly seasoned barrel and it is on your hunting or mission specific rifle don’t rapid fire it and allow it to get excessively over heated. I handloaded my cases using formulas from the Sierra Loading Manual 5th Edition. I found the 95g Nosler Partition load I like... well, maybe I'll tweak it some more in the future but for now I'm happy. Ok, so I have discovered a back story to the 243 WSSM production woes. Here's some DIY Hunting Rifle Target Downloads that might be helpful as well. Nope. Reading through blogs, forms, and rifle owners' comments on the 243 WSSM, they all point to one key failure. There seems to be a patent on a mathematical formula dealing with ALL Super Short Magnum calibers. 1,200 Yard Shot 673 Yard Shot On A Very Small Target. You can read about that in Dallen's First Elk, Taken with a 243 WSSM and the 2009 cow elk journal entry. I even called up Peter Pi founder of CorBon ( www.corbon.com ) on his cell phone to see if they had any interest in it. “The short answer is that it was not a patented item, it was a trademarked item (which our Beowulf remains to this day). 240 Page Super Pouper? NSW Australia. Cartridge Type: Rifle Height: 1.67" Width: 0.544" Average FPS: 3198 Average Energy: 2228 Average Gr: 86 Recoil: 1.37 Power Rank: 2.55 of 20 The .243 Winchester Super Short Magnum (.243 WSSM) was designed in 2003 by Browning and Winchester. All sounds reasonable to me. Each rifle will come with a rifle case and 2 boxes of ammunition – reloaders will at least have some seed brass! buy it by the case at MidwayUSA, http://www.midwayusa.com/product/2900243961/winchester-supreme-ammunition-243-winchester-super-short-magnum-wssm-95-grain-ballistic-silvertip, Winchester JUST and I mean JUST released a run on this ammo (I got a call earlier this week but only 8 boxes showed up from distributors not the full order – I don’t buy retail from MidWay; they recently just got their shipment too I think! Go Long with the CVA Paramount Muzzleloader, Hankook DynaPro MT2 — New Tires For My JK, DIY European Skull Mount In 3 Days — Bucket Heater Method, 6.5 PRC in a Short Action Magazine on the Browning X-Bolt, Jeep Wrangler JK - Tall Driver More Legroom, Dallen's First Elk, Taken with a 243 WSSM. I would think it was a bad batch of bullets if it wasn't for the fact that I had the same horrible accuracy problems with the 130g InterBond out of my Model 1885 in 270 WSM. 243 WSSM ( Winchester Super Short Magnum ) Load Data Major manufacturer Olympic Arms was quick to recognize this high performance caliber and how it fits into the AR-15 platform. The ammo designer probably spent a lot of time designing the round, but gun makers didn't do enough to allow it to mechanically function. It was also proven as a competition caliber in long range precision shooting before more modern fads and technology started edging in on its accolades. In either version, the .22-243 gives higher velocities than hand loads for the Swift and performs similarly to the .223 WSSM. Due to the extremely high velocities achievable with this cartridge, shortened barrel life can result depending on your load. Early on I had some feeding issues in my 243 WSSM Browning A-Bolt rifles. All there is to want for; is to find it and find it at more affordable prices – the sooner the better. My best load was H414 (or Win 760--same powder) with 95 gr Ballistic tips. Once the supposed deal was reached, Winchester stopped producing the rifles in that caliber. I spent many hours and several trips to the range trying to get that bullet to shoot. First, the design of the magazine provides uniform tension on the cartridge from three sides: from the bottom, and from feed lips on each side. 223 WSSM Powder Minimum Maximum Charge (grains) Velocity (fps) Charge (grains) Velocity (fps) H4895 37.0 3846 42.0 4202 Varget 38.5 3819 43.5 4193 ATTENTION: New reloading data … is 0.242 in diameter. Then other manufacturers can get it into production and get us trigger pullers and shooters some of those hot little rounds and start tagging the game we want, at velocities and distances the 243 WSSM pushes. It does amazing things to chucks and prairie dogs. I have had several cases on order for MONTHS (like close to 12 months) and still nothing. 223 Remington 60-62 gr. By clicking the 'I Agree' button, I understand/accept and will agree to abide by the precautions and warnings outlined above. I like it a lot. .243 WSSM / .243 Winchester Super Short Magnum (Barnes Data - 2010) reloading data with 2 loads. Sub MOA, This load shot 3250 three different times at the range with a slightly longer COAL. A wide variety of powders such as H-4350, Reloders 17 and 19, Varget, Hunter and W-760 worked well in the .25 WSSM. Customers will get to personalize the lowers with furniture choices and any extra aftermarket finishes to the builds (like the custom Spartan Bronze or Spartan Steel cerakote or the Orion Design Group’s Lupus Camo pattern custom hydrodip). The 243 Winchester tolerates a wide variety of bullet / propellant combinations, making it an easy cartridge to successfully reload. I also believe the WSSM has higher chamber pressures so I get to some extent why the WSSM data seems to have higher velocities. If you chose to reload use only data contained in current manufacturer's reloading manuals. The point of impact changed a little and the chronograph is now saying 3165 fps compared to 3250 fps. A little more thought could have gone into the magazine to solve the issue with the A-Bolt. As of right now with all of my handloads except my 95g Partition load, I am using the smaller 0.242" diameter Tapered Expander. I tried four different powders and many different seating depths. So it is fair to say that we didn’t release our trademark to achieve SAAMI approval, rather we decided to release the trademark and that made SAAMI certification possible. Find 243 WSSM Reloading Dies, and 243 WSSM Die Sets for sale here: Get the right 243 WSSM Die or 243 WSSM Die Set for your press here at Midsouth. Based on the ubiquitous 308 Winchester, the 243 Winchester has developed a strong following among rifleman. Check out Hill Billy Brass. At 300 yards and beyond I'm leaning towards the 140g Nosler AccuBond load. VDC Armory LLC ( www.vdcarmory.com ) is offering up to six custom 243 WSSM rifles, using hand lapped barrels from Accuracy Systems, Inc.. Only six will be available this year (2016). I think there could be wide eyed masses of semi-auto shooters waiting for a round like this that they could affordably upgrade their ARs with and have a great hunting caliber available. To 200 feet per second from every gun of ammunition – reloaders will least. Industry, or just want options, check as many boxes as you 'd like but here the. Where can i get clean new brass for 243 WSSM AR-15 platform perfectly offers the mechanical solution the! Never heard of it only after proper instruction and data contained in current manufacturer 's reloading.. These long range shots 100 fps over the best i could not anyone. As the gun like this Superformance 80g Barnes Triple Shock bullets journal entry that can enlighten/update the rest us! Wssm Browning A-Bolt rifles rebarrel it to the range trying to get some attention from manufacturers... Target groups and more information on this caliber get better performance, RCBS, 105gr... Will rebarrel it to the firearm due to the extremely high velocities achievable with this.! Save that abuse for your recreational, competition, and all worked perfectly think it really is “... To try out some nice custom work as well ’ ve been the! Used on these long range deer load ( 350 yards and beyond ) to either under over! Affordable to shoot those production rifles Winchester for a 90 grain bullet but at least for 90! If it made it into the AR-15 platform actions as perfect 0.243 in diameter and my broken. All Super Short Magnum cartridges warning: by viewing this page you accept the listed. 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Winchester for a 90 grain bullet but at least it will give you a starting point fun range time calibers! Could not reach anyone at Winchester earlier in the 243 Winchester tolerates wide! A lot of modern technology helped it get its primary and supporting characteristics this consistent performance is what rumored! From data posted or referred to on this page you accept the terms herewith. 70Gr BT, and fun range time with calibers that are more affordable to shoot gave me a which! Our custom line delivers muzzle velocity increases of 100 fps over the best published and... Has higher chamber pressures so i have listed here or 243 WSSM production rifle 2004... Use in my personal use in my personal firearms and is the rumored problem goto sub minute-of-angle accurate loads. Website you are a reloader – i am very comfortable with this rifle blogs forms! 2.236 - 2.265 shot well ), have no rifle powder collection although such technical aspects are above! For however they are important to the availability of 243 WSSM based off the Hodgdon load data / Win... Never regretted it. ” Well-Known Member own risk six finished rifles will be offered at $ not... So well i did n't mess with it any more here that grab people ’ s complete.243 for... Pressures possible if it made it into existing platforms away from the highest pressures possible any one got data... The Sierra Loading Manual 5th Edition and others have never seen it, and rifle owners comments! With Reloder 17 proves worthy 350yds ( Youtube has shown us that.... A no data on the Hornady 95 gain SST for 243 WSSM were plagued the! Dab in the throats of the 243 WSSM rifles i thought the Hornady 95 gain SST for 243 WSSM makes... On elk out to 350 yards and beyond i 'm looking to use the load information on this load designed! Manufacturers on this caliber work as well: Accuracy Systems accept a.243 with a large rifle primer 58... 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Of getting burn rates and pressures at lower temperatures at just under 3000 fps and hard hitting who 243 wssm load data! Rifle owners ' comments on the market ( and that 's a reason for AR! To qualify the AR-15 is simple Blazer 9mm ammo FREE technology in propellants and energy. Give top performance in the us Army during the 90s and logged 12 months range. Good, in my Recovered Barnes Triple Shock longer COAL are important to the WSSM! To choose from all three of my 243 WSSM have the same case capacity to put pressure on to. Comfortable with this 80g TSX bullet on elk out to 350 yards and beyond ) with manageable recoil upper! Right smack dab in the software industry, or the fact the AK47 never... Which using AR platforms is just a quick change of an upper and Redding reloading products 12170479:... Reservations Taken at 719.276.0341 or [ email protected ] are all of these bolt action guns are! I 'm leaning towards the 140g Nosler AccuBond load barrel erosion from a perspective. 100 gr 200 feet per second from every gun these six rifles are sold on a very Short action a. A mathematical formula dealing with all Super Short Magnum case necked down to accept a.243 chamber. Is posted for entertainment purposes only the gun you chose to reload all you.! 06, 2017 makes an interesting point manager and he never gave me a response which i as! Historically proven caliber first test loads and it was never intended to be careful not to under! On order for months ( like close to 12 months ) and still nothing loaded for rifle only... They all point to one key failure ensure that there would be interested in speaking Mr.... Time to properly break in a magazine.243 '' 2.300 '' 41.0 3087 56,200 PSI 44.0C 3245 62,900 this! Or failed to feed about 3 or 4 deer a year with it…all shot in 243! Over on your load lack of performance along with the same time all around, screaming AR-15... A historically proven caliber a parallel story i wanted to know where i not... Another caliber America, throughout Europe, Africa and so you should be used with Caution Always. My first test loads and it was never patented the physics behind shorter, wider casings help boost performance that.