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 Bolt Action Rifles
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 Rifle Scope Sight-In
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 Precision Bold Targets.
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 Centerfire Ballistics
 Reloading
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7mm Remington Magnum History:
Centerfire Rifle Cartridges
Written by: Kim Lockhart, Copyright.

7mm Remington Magnum:
 The 7mm Remington Magnum centerfire rifle cartridge is a .28" caliber, belted, bottle neck cartridge case design. This cartridge was developed by Remington over a period of time experimenting with several cartridge cases by necking them down to accept .284" diameter bullets, the final wildcat would be the 338 Win. Mag. case necked down to .28" caliber. Remington introduced their new 7mm Remington Magnum cartridge to the public in 1962, this cartidge received great reviews by many as the bullets that could be used carried a very high ballistic profile promising a flat trajectory for long range hunting use in North American hunting of big game. Remington chambered the 7mm Remington Magnum cartridge in their Model 700 bolt action rifle in 1962 and it featured a 1 in 9" rifling twist. The 7mm Remington Magnum has been chambered by most major high power rifle manufacturers for quite some time and they have offered these rifles with rifling twist rates from 1 in 9" - 1 in 10". Because of the velocity range and quirky nature of .284" diameter bullets in that velocity range, the 7mm Remington Magnum will give varied performance results with various rifling twist rates.

 The 7mm Remington Magnum has enough power, due in part to its large case capacity for powder, using 140 grain bullets it will drop deer at 500 yards, using 160 grain bullets it will take elk at 500 yards as well. This is truly an excellent big game cartridge for hunting all of North America's big-game animals. The 7mm Remington Magnum offers one of the best compromises of power, recoil and bullet selections of all high power class of rifles, it stands well when compared to other similar .28" caliber cartridges.

 The 7mm Remington Magnum when loaded with 139 grain bullets recoil is quite minimal and controllable when loaded with 160 grain bullets the recoil increases quite a bit, however a good recoil pad fitted to the rifle will tame the recoil before it gets to your shoulder.
 The other way to reduce recoil is to use Alliant 4000MR powder in heavy long distance bullet loads. Very high ballistic coeffecient bullet profiles for long range hunting are .625 for the Hornady 162 grain A-Max and .652 for Nosler 168 grain long range Accubond.


7mm Remington Magnum Specifications:
Rifle:
Barrel Length - 24".
Bore Twist Rate - 1 in 9".
Bore Groove Diameter - .284".
Cartridge:
Bullet Diameter - .284".
Primer Size - Large Rifle, Type - Magnum.
Case Neck Diameter - .315".
Case Shoulder Diameter - .492".
Case Base Diameter - .513".
Case Rim Diameter - .532".
Maximum Case Length - 2.500".
Trimmed Case Length - 2.490".
Maximum Overall Length - 3.290".
Ammunition:
7mm Remington
Magnum
Cartridge
Manufacturer
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Bullet
Muzzle
Velocity
Fps.
Bullet
Muzzle
Energy
Ft. lbs.
8.5 lb. Rifle,
Recoil
Energy
Ft. lbs.
Norma 125 .315 3,365 3,143 19.92
Hornady 139 .486 3,240 3,239 21.57
Remington 140 .486 3,175 3,134 21.24
Norma 150 .536 3,166 3,388 22.99
Hornady 154 .525 3,100 3,286 23.13
Norma 156 .330 2,953 3,020 22.16
Winchester 160 .512 2,950 3,092 22.82
Hornady 162 .550 3,030 3,302 23.93
Federal 165 .458 2,950 3,188 23.69
Nosler 168 .652 2,880 3,094 23.51
Norma 170 .378 2,953 3,292 24.60
Remington 175 .427 2,860 3,178 24.51

7mm Remington Magnum Hunting Applications:
 This is a down range trajectory chart for the 7mm Remington Magnum cartridge with the scope mounted 1.5 inches above the bore center line plus if you were using this load, its effective hunting bullet energy range with well placed shots on;
Varmint / Predator: Such As, Bobcat, Cougar, Coyote.
Deer Size Game: Such As, Antelope, Blacktail Deer, Hogs, Javelina, Mule Deer, Whitetail Deer, Small Black Bear.
Elk Size Game: Such As, Caribou, Large Black Bear, Sheep, Goats, Muskox, Elk.
Moose Size Game: Such As, Brown Bear, Grizzly Bear, Polar Bear, Buffalo, Bison, Moose.
Bullet diameter .284".
Bullet weight 154 grains.
Bullet ballistic coefficient .525.
Bullet muzzle velocity 3,100 feet per second.
Bullet muzzle energy 3,286 foot pounds.
Range 100 Yds. 200 Yds. 300 Yds. 400 Yds. 500 Yds.
Bullet Trajectory + 2.4" + 2.5" - 2.0" - 11.9" - 27.8"
Bullet Energy 2,905 2,562 2,253 1,974 1,722
Varmint / Predaor + + + + +
Deer Size Game + + + + +
Elk Size Game + + + + -
Moose Size Game + + + - -
Directory:
Rifles
Rifle Ammunition
Rifle Dies
Rifle Brass
Rifle Bullets
7mm Remington Magnum - Reloading - Hunting & Ballistics.
.17 HM2, .17 HMR, .17 WSM, 5mm Rem. Mag., .22 BB Cap, .22 CB Cap, .22 Short, .22 Long, .22 LR, .22 WRF, .22 WMR.
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 Sav., 257 Roberts, 25 WSSM, 25-06 Rem., 257 Wby. Mag., 6.5 x 55mm Swedish Mauser, 260 Rem.,
6.5mm Rem. Mag., 264 Win. Mag., 6.8 Rem., 270 Win., 270 WSM, 270 Wby. Mag., 280 Rem., 7mm Rem. Mag., 7mm WSM,
30-30 Win., 308 Win., 30-06 Sprg., 300 Win. Mag., 300 WSM, 300 Wby. Mag., 325 WSM, 338 Win. Mag., 340 Wby. Mag.,
357 Mag., 44 Rem. Mag., 444 Marlin, 45-70 Government.