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7mm Remington Magnum - Ballistics - Hunting - Reloading.
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Ballistics:
 Barrel Twist Rates
 Barrel Break-In
 Rifle Scopes
 Rifle Scope Mounts
 Rifle Scope Mounting
 Rifle Scope Sight-In
 Precision Targets
 Shooting
 Precision Bold Targets.
Reloading:
 Equipment
 How To
 Black Powder
 Recoil
Reloading Accuracy:
 Brass
 Primers
 Powder
 Bullets
 Load Testing
 Run-Out.
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7mm Remington Magnum:
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 cartridges by necking them down to .284" diameter the final wildcat would be the 338 Winchester Magnum 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.

Reloading Specifications:
Bullet Diameter = .284".
Maximum Case Length = 2.500".
Trimmed Case Length = 2.490".
Primer Size = Large Rifle.
Maximum Cartridge Overall Length = 3.290".

Reloading Data:
 For the Antelope, Hog, Blacktail, Whitetail or Mule Deer hunter hand-loading or reloading his or her own 7mm Remington Magnum ammunition, Western Powders, Accurate Magpro rifle powder does an impressive job of launching 139 grain .284" diameter bullets at high velocity. Accurates online reloading data shows that a 139 grain .284" diameter Hornady BTSP bullet using 68.3 grains of Accurate Magpro powder can be driven to a velocity of 2,921 feet per second loaded at a maximum cartridge overall length of 3.230" in the 7mm Remington Magnum. This load tops out with the 139 grain bullet at 3,207 feet per second at a chamber pressure of 60,689 PSI. For the 139 grain bullet reload if you sighted your 7mm Remington Magnum hunting rifle in dead on at 235 yards it would only be 2 inches high at 150 yards and only 3.9 inches low at 300 yards which would be an excellent Antelope, Hog, Blacktail, Whitetail or Mule Deer load for the 7mm Remington Magnum.

7mm Remington Magnum Load Data And Ballistics Table
Test Powder Used = Accurate Magpro.
Test Bullet Used = Hornady - Boat-Tail Spire Point - .284" diameter.
Test Primer Used = Winchester - WLRM.
Test Case Used = Winchester - 7mm Remington Magnum.
Test Case Trimmed Length = 2.490".
Loaded Cartridge Overall Length = 3.230".
Test Barrel Length = 24".
Test Barrel Twist Rate = 1 in 9".
Hornady
Bullet
Weight
Grains
Hornady
Bullet
Sectional
Density
Hornady
Bullet
Ballistic
Coefficient
Powder
Start
Load
Grains
Start
Load
Velocity
Fps.
Powder
Maximum
Load
Grains
Maximum
Load
Velocity
Fps.
Maximum
Load
Pressure
P.S.I.
139 .246 .453 68.3 2,921 75.8 3,207 60,689
Short Range Ballistics Table For Above Load:
Recommended
Cartridge
Usage:
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Muzzle
Velocity
Fps.
Muzzle
Energy
Ft. Lbs.
Rifle
Zero
100 Yds.
Bullet
Drop
200 Yds.
Bullet
Drop
250 Yds.
Big Game 139 .453 3,207 3,174 0 - 2.4" - 5.3"
Long Range Ballistics Table For Above Load:
Bullet 100 yds. 200 yds. 300 yds. 400 yds. 500 yds. 600 yds. 700 yds.
Velocity Fps. 2,988 2,779 2,580 2,390 2,208 2,033 1,867
Energy Ft.lbs. 2,755 2,384 2,055 1,763 1,504 1,276 1,076
Trajectory + 1.2" 0 - 5.7" - 16.7" - 33.7" - 57.9" - 90.6"
Maximum Effective Range For Thin Skinned Big Game: 650 Yards.



Rifles
Ammunition
Dies
Brass
Bullets.

Factory Ammunition Ballistics:
 The below 7mm Rem. Mag. rifle ballistics table will give rifle cartridge bullet weight measured in grains, velocity measured in feet per second, energy measured in foot pounds, trajectory measured in inches and rifle recoil energy measured in foot pounds based on a fully loaded and scoped 8.5 pound, 24" barrel length rifle with scope mounted 1.5" above bore centerline.
Rifle Ballistics Table Compiled By: Kim Lockhart, Copyright.
7mm Remington Magnum Factory Ammunition Ballistics Table
Centerfire Rifle Cartridge /
Cartridge Manufacturer;
F=Federal, H=Hornady,
N1=Norma N2=Nosler,
R=Remington, W=Winchester
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Muzzle
Velocity
Fps.
Muzzle
Energy
Ft. lbs.
Recoil
Energy
Ft. lbs.
Rifle
Zero
100 Yds.
Bullet
Drop
200 Yds.
Bullet
Drop
300 Yds.
Bullet
Drop
400 Yds.
Bullet
Drop
500 Yds.
7mm Rem. Mag. / N1 125 .315 3,365 3,143 19.92 0 - 2.3" - 9.2" - 21.9" - 41.8"
7mm Rem. Mag. / H 139 .486 3,240 3,239 21.57 0 - 2.3" - 8.9" - 20.5" - 37.8"
7mm Rem. Mag. / R 140 .486 3,175 3,134 21.24 0 - 2.4" - 9.4" - 21.5" - 39.7"
7mm Rem. Mag. / N1 150 .536 3,166 3,388 22.99 0 - 2.4" - 9.3" - 21.1" - 38.7"
7mm Rem. Mag. / H 154 .525 3,100 3,286 23.13 0 - 2.6" - 9.8" - 22.4" - 41.0"
7mm Rem. Mag. / N1 156 .330 2,953 3,020 22.16 0 - 3.4" - 12.8" - 29.8" - 56.2"
7mm Rem. Mag. / W 160 .512 2,950 3,092 22.82 0 - 3.0" - 11.3" - 25.5" - 46.5"
7mm Rem. Mag. / H 162 .550 3,030 3,302 23.93 0 - 2.8" - 10.4" - 23.4" - 42.7"
7mm Rem. Mag. / F 165 .458 2,950 3,188 23.69 0 - 3.1" - 11.6" - 26.3" - 48.4"
7mm Rem. Mag. / N2 168 .652 2,880 3,094 23.51 0 - 3.1" - 11.4" - 25.5" - 45.9"
7mm Rem. Mag. / N1 170 .378 2,953 3,292 24.60 0 - 3.3" - 12.2" - 28.1" - 52.3"
7mm Rem. Mag. / R 175 .427 2,860 3,178 24.51 0 - 3.5" - 12.8" - 29.1" - 53.6"

Current "2014"
Rifle Ammunition
Prices At:
Brownells,
Cabelas,
Sinclair,
Sportsmans Warehouse.
7mm Remington Magnum: Specifications, Reloading, Accuracy, Ballistics, Remington Ballistics, Moose, Elk, Deer Varmint, Hunting & Ballistics