There were several faster wildcat rounds available, but the .240 Wby. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Convert Units. The 243 Win. Velocity Muzzle Energy Usage. In 2003, with inspiration from high-velocity benchrest cartridges like the 6mm BR and 22 PPC, the 223 and 243 Winchester Super Short Magnums (WSSM) were introduced. .243 WSSM Minimum Maximum Case: Winchester Twist Rate: 1:10" Charge Velocity Charge Velocity Load Powder (grains) (fps) (grains) (fps) Density (%) IMR 4007SSC 42.0 3359 46.0 3602 96 Win 760 44.5 3393 48.5 3656 92 H414 43.5 3383 47.5 3627 90 H4350 42.5 3348 46.5 3561 95 Hunter 46.0 3365 51.0 3665 99 VIT N160 43.0 3344 47.0 3564 96 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. Due to the extremely high velocities achievable with this cartridge, shortened barrel life can result depending on your load. Ballistics Comparison for 270 The old 243 Winchester can beat that by about 300 fps. I have a 6.5 mm barrel to experiment with and I am really thinking hard about necking the 243 WSSM up to 6.5 when the brass becomes available for a 600 and 1000 yard F class rifle. This is because doubling a projectile’s weight doubles its kinetic energy , but doubling its velocity quadruples its kinetic energy. Power-Point ... 243 WSSM . Rapid Controlled Expansion Polymer Tip ... Overview Velocity Energy Trajectory Short Range Trajectory Long Range. Superformance ® Varmint ammunition delivers muzzle velocity increases of 100 to 200 feet per second from EVERY gun. If people desire a .243 AI chamber, then there's a reason for the .243 WSSM. The .243 has been a great round, accurate, flat shooting and hard hitting. The 243 WSSM's is Magnum cartridge with the extra short case for use in compact bolt action rifles. .243 WSSM / .243 Winchester Super Short Magnum (IMR Data) reloading data with 52 loads. 243 WSSM handload data showing my favorite accurate handloads with ballistics. The .25 WSSM is much easier to hand-load for and, with the heavier bullets, puts out some serious energy. Powders include Hodgdon, Winchester, IMR It uses a .300 WSM (Winchester Short Magnum) case shortened and necked down to accept a .243 in/6mm diameter projectile and is a high-velocity round based on ballistics design ideas that are intended to produce a high level of efficiency. Overview. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. Short answer, 243 if i only had the choice of the two.He will need to practice, practice, practice, and at $25 a box that practice might be limited. As for powders, you can run anything from BL-C(2) to H1000 in that case. Caliber: 243 Winchester Super Short Magnum (WSSM) Bullet Weight: 55 Grains Bullet Style: Ballistic Silvertip Case Type: Nickel Plated Ballistics Information: Muzzle Velocity: 4060 fps Muzzle Energy: 2013 ft. … Performance Although the case design of the .223 WSSM is radically different from traditional cartridges, performance is much the same as other ultra velocity .224’s such as the .220 Swift, .22-250 and .22-243. 243 Winchester: T_DPX: 80: 1819: 3200: 243 Winchester: DTAC http://monolithicmunitions.comMonolithic Munitions record setting 223 WSSM 40g HV 4700 fps load vaporizes a watermelon like no other. Add Product. 243 Win 58 gr V-MAX® Superformance® Item #8343 | 20/Box . The 243 WSSM is an addition to the Winchester Super Short Magnum (WSSM) family of cartridges, which also include the .223 WSSM and the .25 WSSM, and the idea behind the 243 WSSM was to develop a compact, higher velocity version of the well-established and internationally popular .243 Winchester unveiled by Winchester in 1955. 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. View more. It is a little fickle to hand-load for however. 243 Winchester Super Short Mag (WSSM) in 75 Grain V-Max- Hard to find, but we have you covered!! RE: 243 vs 243 wssm? ... 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. Rapid Controlled Expansion Polymer Tip . Mag. At the 100 and 200 mark, we still see the .243 round showing higher overall velocities than the majority of the 6.5 Cm rounds, though the 120 gr Hornady Match 6.5 CM round matches the velocity of the three .243 rounds. What are some you fellow forum members thoughts on that. starts with a bullet weighing 55 grains less than the 30-30, but its additional 750 fps muzzle velocity gives it 213 f-p more energy at the muzzle. The Hornady 6mm ARC takes the 24-caliber into record territory — the slowest muzzle velocity of any commercial cartridge propelling .243” bullets. The 243 has an edge as far as bullet drop is concern. The .243 WSSM's virtually the same as a .243 Ackley Improved. ... 243 Winchester . This bullet had a muzzle velocity of 3500 FPS and the shot was 132 yards coming from a 243 WSSM A-Bolt rifle. lol.. thanks lefty7mmstw i seen a 243 wssm and a loaded round that goes in it this weekend and it looked like it would be a nasty little gun. Powders include IMR 243 Win 95 gr SST ® Superformance ® Item #80463 | 20/Box US Patent: 8,161,885 | 8,413,587. Abbreviations: (AV): Average Velocity (SD): Standard Deviation The author Norman Gray chronographing his .243 Winchester loads deep in the Arizona desert in the middle of summer. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. Using bullets from Hornady V-Max, Nosler BT, Sierra BTSP, Swift Scirocco, Speer BTSP. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. 243 WSSM . Velocity. The 243 WSSM uses a shortened 300 Winchester Short Magnum case necked down to accept a .243” / 6mm diameter bullet. .243 round the Winchester Ballistic Silvertip, 95gr external ballistics tell us exactly? 95 Grain . The .243 rounds have lower bullet energy consistently through the 500-yard mark, and like the velocity, they tend to bleed energy at a higher rate than the 6mm Creedmoor rounds. Lbs.) Accuracy, increased range, flatter trajectory, less wind drift and devastating terminal results are all realized with Superformance ® Varmint ammunition.. Find a Retailer 20 . SBST243SSA. It says that at around the halfway point of 250 yards the bullet will have slowed 580fps to a velocity of 2520fps, lost 688 ft pounds of energy (now pushing just 1339 lbs), and dropped due to gravitational forces just 5.9833 inches, and all of this in just a fraction of a second (.269 of a second). The rifles that were designed for the bullet were scaled down in weight that allowed for youths to be able to use as their first shooting rifle. If you’re a numbers guy/gal, take a look at this:.243 Nosler 105gr BC .571 Muzzle FPS 2846 Tansonic 1359 at 1100 yd total drop 383 inches. Using bullets from Hornady V-Max, Barnes VG FB, Nosler BT, Sierra BTSP, Swift Scirocco, Speer BTSP. 969 - 6.5-243 WSSM 1102 - 22-250 1143 - .243 WSSM 1165 - 0.243 1230 - .220 Swift 1273 - 25-06 1329 - 300 Weatherby 1358 - 223 WSSM 1499 - 264 WM 1620 - 257 Weatherby 1746 - 30-378 So yes the .223 WSSM is getting up there into legendary 264 WM barrel burning country. Hornady 6mm ARC Losing Ground. You might have also noticed that the .243 rounds tend to bleed off velocity at a much higher rate than the 6.5 CM rounds. Velocity. It uses a .300 WSM (Winchester Short Magnum) case shortened and necked down to accept a .243 in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. In terms of velocity, the .240 Weatherby Magnum was once the fastest commercially produced 6 mm cartridge. These reloads produce very consistent accuracy in my rifles. Notes: Velocity figures are derived from a ten-round average recorded on a Caldwell Ballistic Precision Chronograph G2 placed 15 feet from the muzzle. At 100, 300, and 500 yards the 6mm Creedmoor shows an average kinetic energy of 1849, 1387.25, and 1023.5 ft.lbs. lb Muzzle Velocity ft/sec. A thorough explanation of the collapse of Winchester rifle production can be found in the .25 WSSM history text. Hornady is claiming its 6mm ARC will yield 2,750 fps with a 108-grain ELD-M bullet from a 24-inch barrel. However, the .243 WSSM does not look quite so bad -- more middle of the pack. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. Cartridge Bullet Weight Bullet Type Rounds Per Box Symbol Brand Ballistic Coeff Usage. I will start a big arguement here, but considerwhere you hunt, what you hunt, you and your sons tracking skills, and how big of a gun your son can shoot comfortably before buying. As illustrated in the chart, .223 Remington rounds - on average - achieve a velocity of about 3150 feet per second (fps) while .243 Winchester rounds travel at a velocity of 3180 fps. This 130g Barnes Triple Shock, TSX bullet was recovered from a cow elk resting against the hide in the rear of a hind quarter. Starline’s .243 Winchester brass was used for this article. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. outclassed the 6 mm Remington and the newer .243 WSSM by about 150 ft/s (46 m/s). 95 Grain . Caliber: Bullet Weight: Overall Cartridge Length: Muzzle Velocity: Trajectory at 300 yds(100yds zero) Muzzle Energy(Ft. .243 WSSM / .243 Winchester Super Short Magnum (Hodgdon Data) reloading data with 178 loads. 100 Grain . 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