Wrong marketing and too many short mags to choose from all at the same time. I'm working on a load … The 243 Winchester tolerates a wide variety of bullet / propellant combinations, making it an easy cartridge to successfully reload. Right or wrong, that is what is rumored. Posts: 1,705. Consistently accurate from all three of my 243 WSSM rifles. I am sending a 120 grain bullet out of a 22" barrel on my AR at just under 3000 FPS. See target groups and more information on this 105 A-Max load. This is analogous to Freeware in the software industry, or the fact the AK47 was never patented. Some people are saying cam over on your sizing die will fix it. The Woes of the 243 WSSM (which is truly ahead of its time). Reservations taken at 719.276.0341 or [email protected]. Read into that what you will, but it tells me that there could be some truth to this whole settlement agreement with Winchester which appears confidential. I handloaded my cases using formulas from the Sierra Loading Manual 5th Edition. Users assume all risk, responsibility and liability for any and all injuries (including death), losses or damages to persons or property (including consequential damages), arising from the use of any data posted on this site. Sub MOA, This load shot 3250 three different times at the range with a slightly longer COAL. That covers Thermal and Chemical erosion concerns. Max Vel. This round is easy on recoil and hard on deer. 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 even called up Peter Pi founder of CorBon ( www.corbon.com ) on his cell phone to see if they had any interest in it. Campfire Ranger. Two of them have 18” hand lapped stainless steel threaded barrels and four of them have 20” hand lapped stainless steel threaded barrels. *Most Accurate Load C Compressed Load 6 While long range shooters and hunters were, and are, focused on traditional (bolt action) feed issues, the mechanical performance failings of the 243 WSSM are simply solved by introducing it into a modern sporting action. Due to the extremely high velocities achievable with this cartridge, shortened barrel life can result depending on your load. Nothing is being manufactured by the patent holder. All six finished rifles will be offered at $1,949 not including finishes. It appears that for the greater good of the caliber’s sustainability and popularity, Alexander Arms and the caliber’s creators made a selfless decision to allow it available for mass production. bobnob17. INDICATES MAXIMUM LOAD — USE WITH CAUTION Rifl e Data 223 Winchester Super Short Magnum 40G RAINB ULLETS SECTIONAL DENSITY: 0.114 DIAMETER: 0.224" 40 M V. gr- AX ® Item No. As importantly, am I hoping to get some attention from ammunition manufacturers on this caliber. 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. Browse our … It appears odd that the patent was even granted, since shouldered cartridges have been in the public domain for over a 100 years and nothing the patent protects is physically manufactured. 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. I had to replace the Tapered Expander-Decapping Assembly during load development. I'm still looking for a long range deer load (350 yards and beyond). It is vague and rather surprising, as well as frustrating, considering that most common calibers are in the public domain and readily available for anyone to mass produce. The original caliber has a heritage that makes the conversion to a Super Short Magnum seem very reasonable and, generally, a pretty good idea. I solved it with a chopped up credit card in the magazine. I also believe the WSSM has higher chamber pressures so I get to some extent why the WSSM data seems to have higher velocities. A Native Colorado resident & life time Hunter. : 2.200" G1 B.C. The wssm was a failure like the rsaum. Ok, so I have discovered a back story to the 243 WSSM production woes. This consistent performance is what reloaders have come to expect from Alliant Powder - and Reloder 17 proves worthy. Understanding that in regards to the availability of 243 WSSM now makes an interesting point. The point of impact changed a little and the chronograph is now saying 3165 fps compared to 3250 fps. I asked a connection I know, who announced he would be hanging with Winchester at the Live Fire Day before SHOT Show 2016, if he could PLEASE ask Winchester what were the chances of getting some 243 WSSM in production… nothing, crickets. Larger and heavier AR-10 platforms have been chambered to allow traditional, long cased .243's, and they perform well, too. Supposedly, a deal was reached (can not confirm with either party) whereby rather than pay royalties on the ammunition they were producing, an agreement was reached to pay a commission/royalty on rifles built and sold in that caliber. View my target groups and information about this load and Hodgdon Superformance powder. SFT SCIR 90 H4350 .243" 2.300" 41.0 3087 56,200 PSI 44.0C 3245 62,900 PSI This is off the Hodgdon load data website. Targeted velocities are well in excess of 100 fps over the best published handloads and even larger gains over factory ammunition! 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. A wide variety of powders such as H-4350, Reloders 17 and 19, Varget, Hunter and W-760 worked well in the .25 WSSM. Not factual. Seriously, finding 243 WSSM is the adult version of a never ending Easter egg hunt. 2.250 (everything I tried between 2.236 - 2.265 shot well), Sub MOA. OP. .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. Thanks for any info. ( www.hillbillybrass.com ). Stay with me here. This is for a 90 grain bullet but at least it will give you a starting point. 243 Winchester Super Short Magnum - 70 grain Version 8.0 24" Wiseman 1-10" * = Most accurate load tested ** = Compressed load “ Because Nosler, Inc. has no control over the actual components selected, the manner in which they are assembled or the ... From what I have read they are worth the wait. 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. bobnob17 OP. Could probably add a grain or two more of powder as I had no pressure signs with this load. The .243 has been a great round, accurate, flat shooting and hard hitting. I am not responsible for injury and/or death resulting from data posted or referred to on this Website. ATTENTION: New reloading data … Heavier grain bullets are probably more preferred for most game options but still – 4,050+ fps! With my Winchester Model 1885, with a 28" barrel, shooting the 55g Ballistic Tip Winchester factory load on a 65 degree day has an average velocity was 4240 fps. A patent that anticipates no tangible physical item to be produced seems strange to me, and I don’t understand why a patent would be sought in such fashion other than to claim and hold that item for ransom. There seems to be a patent on a mathematical formula dealing with ALL Super Short Magnum calibers. I think it really is a “Must Have”, all around, screaming fast AR-15 Caliber. *Recommended Powder C Compressed Load 1. inchester Powder Minimum Maximum Charge (grains) Velocity (fps) Charge (grains) Velocity (fps) Big Game 42.6 3445 47.4C 3770 H380 42.7 3470 47.5C 3723 Maybe… Read more », My company (which shall remain nameless here in the public domain) has used brass resized by Hillbilly Brass for the 25WSSM. Using bullets from Barnes TTSX BT. Load Data. Then select your bullet weight, powder manufacturer and powder type. A lot of modern technology helped it get its primary and supporting characteristics. The .25 WSSM is much easier to hand-load for and, with the heavier bullets, puts out some serious energy. Reloaders are urged to be careful not to either under or over load the .243WSSM, as this is a pressure sensitive cartridge. *Most Accurate Load C Compressed Load 1. The new one is 0.243 in diameter and my old broken one (Oops!) Posts: 1,705. Pistol; Rifle; Cowboy; GR. 243 WSSM load data / 243 Win load data #12170479 07/26/17: Joined: May 2012. No joke. 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. These six rifles are sold on a first come first serve basis. 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. Joined: May 2012. I am sure arguments can be made against this next statement, but the introduction in 2003 of the 243 WSSM (Winchester Supper Short Magnum) gave the round about a 10% boost in key performance areas of velocity, accuracy and effective Range. 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. It is far more costly to design and manufacture a new receiver format than a new cartridge. My understanding in this case was that something had to be voluntarily released by Alexander Arms (who trademarked it – NOTE, not patented) so that ammunition could be mass produced by various and multiple manufacturers in order to make the caliber more popular and standardized. When a loaded AR-15 magazine is inserted and seated in the action, the cartridge alignment is such that it is more directly in line with the chamber and the feed ramps support the rest of the chambering. Has any one got load data on the Hornady 95 gain SST for 243 Winchester? My source was also surprised that the patent was awarded due to such vagueness and the fact nothing is being manufactured. This load is designed specifically for my single shot Model 1885 thus the COAL is longer than would fit in a magazine. This was one of my first test loads and it shot so well I didn't mess with it any more. Bullet Type Primer. Joined May 13, 2012 Messages 4,779 Location Dakota del norte. I used Winchester WLRs for all loads save one, which was started by CCI-250 magnum caps, and all worked perfectly. 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. Posts: 1,705. The AR platform is next just as soon as we get some barrel blanks in. Provides superb accuarcy in most medium and heavy rifle loads and is the powder of choice for .30-06 and .338 calibers. The magazine and bolt interface in the AR-15 is simple. A couple of specialty manufacturers are putting out some nice custom work as well: Accuracy Systems. NSW Australia. With 100- to 120-grain bullets, velocities approach that threshold, but the newer cartridge can do so only by operating at higher pressures—65,000 psi compared with the .25-06’s 53,000 psi. 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. Great Accuracy! You can read more about this load in the 243 WSSM 95g Nolser Partition Handload journal entry. John selected the .243 Win because it offers excellent ballistics with manageable recoil. Starline’s .243 Winchester brass was used for this article. 223 WSSM Suggested Bullet Use Recommended Twist 1:8” or Faster 70-grain TSX BT Sectional Density .199 Ballistic Coefficient .314 C.O.A.L 2.180” Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. I’am thinking I might need a small base die which I can’t locate. OP. 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. 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. Winchester created the 243 WSSM and introduced it in 2003. Model 1885 High Wall - Bases, Rings, Triggers Etc. We’ve been doing the rifles in bolt action systems for several months now in our custom line. I need to look up the load data on the 243 wssm. .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. Using bullets from Hornady V-Max, Barnes VG FB, Nosler BT, Sierra BTSP, Swift Scirocco, Speer BTSP. See my blog entry. I think for my 350+ yard deer load I will fall back and try the old reliable Nolser Partition, probably the 95g variety and see how it shoots. Campfire Ranger. For varmints I either use the 75 grain V-Max or the 55 grain Ballistic Tip Winchester factory load. To view this Reloading Guide in a PDF format, click the red button below. You can read more about my thoughts on the Triple Shock in my Recovered Barnes Triple Shock Bullets journal entry. It is a little fickle to hand-load for however. The .25 WSSM was designed to duplicate the .25-06, and in some instance, it does. With data for two dozen powders, this provides suggested loads for Sierra’s entire 6mm bullet line-up from 55 to 107 grains..243 Win For Tactical Comps 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. With no comment on the 243 WSSM matter, they DID confirm that they are required to pay a royalty on all OSSM ammunition manufactured for their .300 OSSM rifles in order to comply with said patent requirements (PN 5,826,361) even though their rifles are not “Short Action”. Each rifle will come with a rifle case and 2 boxes of ammunition – reloaders will at least have some seed brass! 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. Anyone have pet loads for the 243 WSSM? 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He has served in the Private Security Field for more than 15yrs., as a Certified Protection Specialist and Certified Master Anti-Terrorism Specialist, including the 2002 Winter Olympics, Presidential Security Detail Member with the President & First Family of Haiti, Int’l Celebrities and personalities related to his business in Aspen, CO. Later Security Services throughout Colorado & Caribbean, Firearms Training, Consulting and now overseeing custom design & builds of the AR15s & AR10s put out by VDC Armory, LLC. 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… 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. The 243WSSM is next on the list. The .243 caliber cartridge is a historically proven caliber. Re: 243 WSSM load data / 243 Win load data [ Re: bobnob17 ] #12172669 07/28/17 Joined: Nov 2013 Nope. The best advice though is to take the time to properly break in a barrel per the barrel maker’s recommendations.
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