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Short Magnums:
223 WSSM - 243 WSSM - 25 WSSM
270 Winchester Short Magnum
7mm Winchester Short Magnum
300 Winchester Short Magnum
325 Winchester Short Magnum
25 Winchester Super Short Magnum:

The 25 Winchester Super Short Magnum is a new centerfire rifle cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2004. The new .257" short magnum cartridge debuted chambered in Winchester's Model 70 bolt action rifle. The 25 WSSM is a commercial cartridge based on the 404 jeffery cartridge case, shortening and necking down to .257" caliber and sharpening the shoulder angle to 30 degrees the new 25 WSSM cartridge has more than enough case capacity for its intended dual purpose use.

 The 25 WSSM cartridge achieves its useful purpose as a very flat shooting varmint cartridge and as an excellent deer cartridge, .25" caliber is a time proven caliber for deer size animals. The 25 WSSM factory loadings show a velocity of 3,470 feet per second for a 85 grain varmint round and 3,060 feet per second for a 115 grain bullet for deer hunting and this translates to very low recoil for the shooter with plenty of bullet energy at the 700 yard mark for varmints and predators and the 450 yard mark to harvest any white-tailed deer size animal.

 The 25 WSSM cartridge is a well thought out cartridge as Winchester is no stranger in .25" caliber cartridge development. Winchester has developed 4 cartridges in this caliber over a 111 year time span;
(25-20 in 1893),
(25-35 in 1895),
(256 Winchester Magnum in 1960) and
(25 Winchester Super Short Magnum in 2004).
 The 25 WSSM cartridge, chambered in a super short actioned light weight rifle may well be the ultimate combination for the 1 gun hunter of strictly varmints, predators and white-tailed deer size game.

Ballistics:
This is a ballistics chart for the 25 Winchester Super Short Magnum rifle:
Rifle barrel length: 24 Inches.
Ammunition: Winchester 85 grain Ballistic Silvertip bullet.
Bullet diameter: .257 inch.
Bullet weight: 85 grains.
Bullet ballistic coefficient: .333.
Rifle zero: 200 yards, 1" mid-range rise.
Range Muzzle 50 yds. 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Bullet Velocity: 3,470 fps. 3,309 fps. 3,155 fps. 2,864 fps. 2,590 fps. 2,333 fps. 2,090 fps.
Bullet Energy: 2,272 ft.lbs. 2,067 ft.lbs. 1,879 ft.lbs. 1,548 ft.lbs. 1,266 ft.lbs. 1,027 ft.lbs. 824 ft.lbs.
Bullet Drop: - 1.8" - 0.1" + 0.9" 0 - 5.1" - 15.4" - 32.2"

This is a ballistics chart for the 25 Winchester Super Short Magnum rifle:
Rifle barrel length: 24 Inches.
Ammunition: Winchester 115 grain Ballistic Silvertip bullet.
Bullet diameter: .257 inch.
Bullet weight: 115 grains.
Bullet ballistic coefficient: .446.
Rifle zero: 225 yards, 2" mid-range rise.
Range Muzzle 50 yds. 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Bullet Velocity: 3,060 fps. 2,951 fps. 2,845 fps. 2,640 fps. 2,444 fps. 2,256 fps. 2,077 fps.
Bullet Energy: 2,391 ft.lbs. 2,223 ft.lbs. 2,066 ft.lbs. 1,779 ft.lbs. 1,525 ft.lbs. 1,300 ft.lbs. 1,102 ft.lbs.
Bullet Drop: - 1.8" + 0.5" + 1.7" + 1.0" - 4.8" - 16.4" - 34.9"

25 Winchester Super Short Magnum Reloading:

Bullet Diameter: .257 Inch.
Maximum Case Length: 1.670 Inches.
Trimmed Case Length: 1.660 Inches.
Primer Size: Large Rifle.
Maximum Cartridge Overall Length: 2.360 Inches.

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Calculating Kinetic Energy
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Centerfire Rifle:
Centerfire Rifle Ballistics:
Centerfire Rifle Cartridges:
17 Rem. - 204 Ruger - 22 Hornet - 222 Rem.
223 Rem. - 22-250 Rem. - 220 Swift - 223 WSSM
243 Win. - 6mm Rem. - 243 WSSM - 240 Wby. Mag.
250 Savage - 257 Roberts - 25 WSSM - 25-06 Rem.
257 Wby. Mag. - 6.5 x 55mm - 260 Rem.
6.5mm Rem. Mag. - 264 Win. Mag. - 6.8mm Rem.
270 Win. - 270 WSM - 270 Wby. Mag. - 7mm-08 Rem.
280 Rem. - 7mm Rem. Mag. - 7mm WSM
30-30 Win. - 308 Win. - 30-06 Springfield
300 Win. Mag. - 300 WSM - 300 Wby. Mag.
325 WSM - 338 Win. Mag. - 340 Wby. Mag.
357 Mag. - 44 Mag. - 444 Marlin - 45-70 Government