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7mm Remington Magnum Reloading

March 10, 2019 By GunnersDen

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.TypeWeightS.D.B.C.
.284″B-Tip120.213.417
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.
69.43,01677.13,34760,518
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@
Velocity
/ FPS.
Energy
/ FT.LBS.
Trajectory
/ IN.
Muzzle3,3472,985– 1.5
100 yds.3,1012,562+ 1.1
200 yds.2,8692,1940
300 yds.2,6491,870– 5.3
400 yds.2,4401,586– 15.6
500 yds.2,2401,337– 31.7
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Hornady Bullet
Dia.TypeWeightS.D.B.C.
.284″BTSP139.246.453
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.
68.32,92175.83,20760,689
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@
Velocity
/ FPS.
Energy
/ FT.LBS.
Trajectory
/ IN.
Muzzle3,2073,174– 1.5
100 yds.2,9882,755+ 1.2
200 yds.2,7792,3840
300 yds.2,5802,055– 5.7
400 yds.2,3901,763– 16.7
500 yds.2,2081,504– 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.TypeWeightS.D.B.C.
.284″Accu-B160.283.531
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.
63.92,66271.02,95860,446
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@
Velocity
/ FPS.
Energy
/ FT.LBS.
Trajectory
/ IN.
Muzzle2,9583,108– 1.5
100 yds.2,7812,747+ 1.5
200 yds.2,6102,4210
300 yds.2,4462,126– 6.6
400 yds.2,2881,860– 19.0
500 yds.2,1361,621– 38.1
7mm Remington Magnum Load Data:
Winchester Cartridge Case
Case Trimmed Length = 2.490″.
Berger Bullet
Dia.TypeWeightS.D.B.C.
.284″VLD168.309.604
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.
63.22,74170.23,00160,920
Ballistic Test Barrel Length = 24″.
Ballistic Test Barrel Twist Rate = 1 in 9″.

Bullet
@
Velocity
/ FPS.
Energy
/ FT.LBS.
Trajectory
/ IN.
Muzzle3,0013,359– 1.5
100 yds.2,8433,015+ 1.4
200 yds.2,6912,7010
300 yds.2,5442,414– 6.2
400 yds.2,4022,151– 17.8
500 yds.2,2641,911– 35.4

Filed Under: Ballistics, Reloading Tagged With: 7mm, 7mm reloading, 7mm rem mag, ballistics, data, relaoding

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