Rifle - Cartridge - Ballistics - Copyright.
30-06 Springfield:
280 Remington
270 Winchester
25-06 Remington
280 Remington:

The 280 Remington rifle cartridge is based on the more popular 30-06 Springfield cartridge case necked down to accept .284" diameter bullets and very similar to a earlier wildcat cartridge the 7mm-06. Remington began producing the 280 Remington in 1957, later changing the name of the cartridge to the 7mm Express Remington in 1979, and still later Remington reintroduced the cartridge in a model 700 rifle and renamed the cartridge to 280 Remington again. The 280 Remington cartridge did not catch on in 1957 in the Remington rifle model 742. When the 280 Remington / 7mm Express cartridge was reintroduced in 1979 the one noticeable difference was the advertised velocity increased approximately 100 feet per second, this according to Remington was do to the use of slower burning powders that had been developed since the original 280 Remington cartridge was introduced in 1957.

 One of the other quirky extensions of the 280 Remington / 7mm Express cartridge is the Remington rifle models 700 and 725 as these rifles do have different rifling twist rates varying from 1 in 9 1/4" twist to 1 in 10" twist. The 280 Remington / 7mm Express is a great cartridge and a great alternative to not using a 7mm magnum rifle with almost equal ballistics and a little less recoil. Many ammunition manufacturers offer some excellent loadings for this cartridge today that are more than capable of handling any game animal that may exist in North America including moose and bears.

Ammunition:
280 Remington Factory Ammunition:
Recoil Energy Based On Rifle Weight Of 8.5 Pounds.
Bullet Velocity Based On Rifle Barrel Length Of 24 Inches:
280 Remington
Rifle Cartridge
Manufacturer
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Muzzle
Velocity
Fps.
Muzzle
Energy
Ft. lbs.
Recoil
Energy
Ft. lbs.
Norma 125 .315 3,115 2,694 15.25
Hornady 139 .486 3,090 2,946 17.23
Winchester 140 .485 3,040 2,873 17.03
Federal 150 .457 2,890 2,782 17.43
Norma 156 .330 2,789 2,695 17.51
Nosler 160 .475 2,775 2,735 18.05
Remington 165 .290 2,820 2,913 19.09
Norma 170 .373 2,707 2,764 18.82

Ballistics:
280 Remington Factory Ammunition Ballistics:
Rifle barrel length: 24 Inches.
Ammunition: Hornady 139 grain SST bullet.
Bullet diameter: .284 inch.
Bullet weight: 139 grains.
Bullet ballistic coefficient: .486.
Rifle zero: 230 yards, 2" mid-range rise.
Range Muzzle 50 yds. 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Bullet Velocity: 3,090 fps. 2,989 fps. 2,891 fps. 2,700 fps. 2,518 fps. 2,343 fps. 2,174 fps.
Bullet Energy: 2,947 ft.lbs. 2,757 ft.lbs. 2,579 ft.lbs. 2,250 ft.lbs. 1,957 ft.lbs. 1,694 ft.lbs. 1,459 ft.lbs.
Bullet Drop: - 1.8" + 0.5" + 1.7" + 1.1" - 4.3" - 15.2" - 32.5"

280 Remington Factory Ammunition Ballistics:
Rifle barrel length: 24 Inches.
Ammunition: Winchester 140 grain Ballistic Silvertip bullet.
Bullet diameter: .284 inch.
Bullet weight: 140 grains.
Bullet ballistic coefficient: .485.
Rifle zero: 260 yards, 3" mid-range rise.
Range Muzzle 50 yds. 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Bullet Velocity: 3,040 fps. 2,940 fps. 2,842 fps. 2,654 fps. 2,473 fps. 2,299 fps. 2,132 fps.
Bullet Energy: 2,873 ft.lbs. 2,687 ft.lbs. 2,512 ft.lbs. 2,189 ft.lbs. 1,901 ft.lbs. 1,643 ft.lbs. 1,413 ft.lbs.
Bullet Drop: - 1.8" + 0.8" + 2.5" + 2.4" - 2.6" - 13.3" - 30.6"

280 Remington Reloading:

Bullet Diameter: .284 Inch.
Maximum Case Length: 2.540 Inches.
Trimmed Case Length: 2.530 Inches.
Primer Size: Large Rifle.
Maximum Cartridge Overall Length: 3.330 Inches.

Reloading Guide:
Equipment - Procedure
Load Testing
Run-Out
Calculating Kinetic Energy
Reloading Guide:
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Bullet
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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