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7mm Remington Magnum Reloading

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Cartridge:
The 7mm Remington Magnum centerfire rifle cartridge is a .28″ caliber, belted, bottleneck centerfire rifle cartridge case design that is reloadable with various combinations of primer, powder and .284″ diameter bullets by handloaders.

7mm Remington Magnum Reloading And Cartridge Specifications:
7mm Remington Magnum Cartridge:

Bullet Diameter – .284″.
Primer Diameter – .210″.
Primer Type – Large Rifle Magnum.
Case Neck Diameter – .315″.
Case Shoulder Diameter – .492″.
Case Base Diameter – .513″.
Case Rim Diameter – .532″.
Min. Case Length – 2.490″ / Trimmed.
Max. Case Length – 2.500″ / Stretched.
Min. Cartridge Loaded Length – 3.150″.
Max. Cartridge Loaded Length – 3.290″.
Max. Average Pressure – 61,000 PSI.
7mm Remington Magnum Reloading Data:
 For the Predator and Deer hunter hand-loading his or her own 7mm Remington Magnum ammunition wanting to shoot a lightweight bullet, the 7mm Remington Magnum will launch Nosler 120 grain Ballistic-Tip bullets in the excees of 3,300 feet per second. Those handloaders desiring a slightly heavier bullet, Hornady 139 grain bullets do a better job when dealing with stiff cross-winds as they have a slightly better ballistic profile.
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Nosler Bullet
Dia. Type Weight S.D. B.C.
.284″ B-Tip 120 .213 .417
Cartridge Overall Length = 3.200″.
Winchester Primer
Type = WLRM.
Accurate Magpro Powder
Powder
Start
Load
Grains		 Start
Load
Velocity
Fps.		 Powder
Maximum
Load
Grains		 Maximum
Load
Velocity
Fps.		 Maximum
Load
Pressure
P.S.I.
69.4 3,016 77.1 3,347 60,518
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@		 Velocity
/ FPS.		 Energy
/ FT.LBS.		 Trajectory
/ IN.
Muzzle 3,347 2,985 – 1.5
100 yds. 3,101 2,562 + 1.1
200 yds. 2,869 2,194 0
300 yds. 2,649 1,870 – 5.3
400 yds. 2,440 1,586 – 15.6
500 yds. 2,240 1,337 – 31.7
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Hornady Bullet
Dia. Type Weight S.D. B.C.
.284″ BTSP 139 .246 .453
Cartridge Overall Length = 3.230″.
Winchester Primer
Type = WLRM.
Accurate Magpro Powder
Powder
Start
Load
Grains		 Start
Load
Velocity
Fps.		 Powder
Maximum
Load
Grains		 Maximum
Load
Velocity
Fps.		 Maximum
Load
Pressure
P.S.I.
68.3 2,921 75.8 3,207 60,689
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@		 Velocity
/ FPS.		 Energy
/ FT.LBS.		 Trajectory
/ IN.
Muzzle 3,207 3,174 – 1.5
100 yds. 2,988 2,755 + 1.2
200 yds. 2,779 2,384 0
300 yds. 2,580 2,055 – 5.7
400 yds. 2,390 1,763 – 16.7
500 yds. 2,208 1,504 – 33.7
For the Elk and Moose hunter hand-loading or reloading his or her own 7mm Remington Magnum ammunition, bullet choices and selections are excellent for long range hunting. Berger 168 grain VLD bullets offer a very flat trajectory and very high energy retention for long range targets that may be encountered.
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Nosler Bullet
Dia. Type Weight S.D. B.C.
.284″ Accu-B 160 .283 .531
Cartridge Overall Length = 3.290″.
Winchester Primer
Type = WLRM.
Accurate Magpro Powder
Powder
Start
Load
Grains		 Start
Load
Velocity
Fps.		 Powder
Maximum
Load
Grains		 Maximum
Load
Velocity
Fps.		 Maximum
Load
Pressure
P.S.I.
63.9 2,662 71.0 2,958 60,446
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@		 Velocity
/ FPS.		 Energy
/ FT.LBS.		 Trajectory
/ IN.
Muzzle 2,958 3,108 – 1.5
100 yds. 2,781 2,747 + 1.5
200 yds. 2,610 2,421 0
300 yds. 2,446 2,126 – 6.6
400 yds. 2,288 1,860 – 19.0
500 yds. 2,136 1,621 – 38.1
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Berger Bullet
Dia. Type Weight S.D. B.C.
.284″ VLD 168 .309 .604
Cartridge Overall Length = 3.290″.
Winchester Primer
Type = WLRM.
Accurate Magpro Powder
Powder
Start
Load
Grains		 Start
Load
Velocity
Fps.		 Powder
Maximum
Load
Grains		 Maximum
Load
Velocity
Fps.		 Maximum
Load
Pressure
P.S.I.
63.2 2,741 70.2 3,001 60,920
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@		 Velocity
/ FPS.		 Energy
/ FT.LBS.		 Trajectory
/ IN.
Muzzle 3,001 3,359 – 1.5
100 yds. 2,843 3,015 + 1.4
200 yds. 2,691 2,701 0
300 yds. 2,544 2,414 – 6.2
400 yds. 2,402 2,151 – 17.8
500 yds. 2,264 1,911 – 35.4

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