I almost question if those power points aren’t meant for the .30-30. 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. 243 Winchester Super Short Magnum; You last purchased this product on . There is great potential in this cartridge. Namely, feed and function related issues. Not a fan of the .243. If you ever shoot this round, you will fall in love with it. Excellent points. 243 Winchester Super Short Magnum Ammunition For Sale. I guess people just like new things. When you have a higher Bc, you have more downrange energy and flatter trajectories – in as little as 300 yards. The M14’s and M1A’s that were made with TRW parts are high quality guns, built from forged, heat-treated steel and walnut, unlike the stamped sheet metal of their peers of the era. The engineering of the Super Short Magnum maximizes science to get better performance. I consider the M16/AR-15 platform to be an embarrassment for using a sling in a proper manner unless you outfit the AR with aftermarket parts to put together a forearm on which you can actually reef down on the sling. Something with a case volume closer to the BR series of cases or even a .284 case that’s been shortened to about 1.5″ would give the necessary powder capacity. You can’t get the OAL of a .243 Win up through the AR-15 magazine well. My .375 and .470NE only need to shoot minute of buffalo brain. Of course, that ultra-fast 55gr will probably blow a chimpmunk apart pieces at 100y, but I don’t hate chipmunks that much. The whole point is that that the OAL of the .243 WSSM would allow you to fit the rounds into an AR-15 magazine and up the mag well without hogging the crap out of the lower and upper to make it feed. Stay with me here . When looking at a rifle, I look at bullet selection first, and as you stated, I plug it in my ballistics program. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. I have had several cases on order for MONTHS (like close to 12 months) and still nothing. Test barrel length: 24"Source(s): Hodgdon 1 The .223 WSSM (Winchester Super Short Magnum) is a .224 caliber rifle cartridge created by Winchester and Browning based on a shortened version of the Winchester Short Magnum case. IMHO, those are kinda on the upper end of the necessary case capacity and generate unnecessarily strong recoil. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. .223 Winchester Super Short Magnum.224 Valkyrie.240 Weatherby Magnum.243 Winchester.243 Winchester Super Short Magnum.25 ACP.25 Winchester Super Short Magnum.25-06 Remington.250-3000 Savage.257 Roberts.257 Roberts +P.257 Weatherby Magnum.260 Remington.264 Winchester Magnum.270 Winchester.270 Winchester Short Magnum.280 Remington Once again (for many of us), the way we hunted, shot and perceived magnum calibers changed. http://www.cabelas.com/product/shooting/ammunition/rifle-ammunition%7C/pc/104792580/c/104691780/sc/104532480/winchester-reg-ballistic-silvertip-174-rifle-ammunition/739976.uts. Trouble is, the OAL on a 105gr pill on a 6×45 is too long for the AR’s magazine and bolt cycling. It is a true joy to shoot as well. .308 to an aerodynamic boat tailed 168gr. 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. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. The “standard” length action is sized for .30-06 cartridges, and “magnum” actions are sized for the .375 H&H class of cartridges. Introduced in 2003 the .223 and .243 WSSM cartridges were created by Winchester as an attempt to inspire shooters interests in the latest ballistics technology. Shop online for top quality .243 Winchester Super Short Magnum Centerfire Rifle Ammo for sale! For 1000m supersonic a 107gn Sierra MK in a 6.5mm BR launched at a moderate 2700fps would easily get there even in fairly dense air. core lokt @ .314 (150gr) or W;nchester power point @ .294 it’s enough to make a huge difference downrange. Winchester Ballistic Silvertip .300 Winchester Magnum 180 Grain $45.99 Out of stock Ballistic Silvertip .270 Winchester Short Magnum 130 Grain $44.99 Out of stock Ballistic Silvertip .270 Winchester Short Magnum 150 Grain $45.99 Out of stock Sorry, I cannot drum up enough interest to read all the technical details, but with so many standard calibers around, .223/.308/.300 Blackout, etc., immediately available off the shelf and reasonably priced, what is so impressive about this particular round? Lastly, better available steel for barrels busts the myth of barrel erosion from a mechanical perspective. The 243 WSSM uses a shortened 300 Winchester Short Magnum case necked down to accept a .243” / 6mm diameter bullet. I shot my .243 at 4000 fps 500yds and you have to do it to see how much quicker the bullet gets there to appreciate what that does for you. Super Short Magnum 95 Grain Supreme Ball. More powerful than a 5.56, less recoil than a .308 (or 12ga.). 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