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7mm Remington Magnum / Reloading:
Written by: Kim Lockhart, Copyright.

7mm Remington Magnum Reloading Specifications:
Bullet Diameter = .284".
Maximum Case Length = 2.500".
Trimmed Case Length = 2.490".
Primer Size = Large Rifle, Type = Magnum.
Maximum Cartridge Overall Length = 3.290".

7mm Remington Magnum 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.


7mm Remington Magnum Load Data Sources:
Hodgdon Reloading Data Center: The reloading data information displayed on this site, including ballistic data, was derived from tightly controlled laboratory conditions, by ballisticians and expert handloaders. Lists pressure test results as well. Features load data using Hodgdon, IMR & Winchester Rifle Powders.

Accurate Reloading Data Center: The reloading data information displayed on this site, including ballistic data, was derived from tightly controlled laboratory conditions, by ballisticians and expert handloaders. Lists pressure test results as well. Features load data using Accurate Rifle Powder. Accurate is an exclusive brand of Western Powders Incorporated.

Ramshot Reloading Data Center: The reloading data information displayed on this site, including ballistic data, was derived from tightly controlled laboratory conditions, by ballisticians and expert handloaders. Lists pressure test results as well. Features load data using Ramshot Rifle Powder. Ramshot is an exclusive brand of Western Powders Incorporated.

Barnes - 7mm Rem. Mag.: Load data for the 7mm Remington Magnum featuring the use of Barnes bullets.

Nosler - 7mm Rem. Mag.: Load data for the 7mm Remington Magnum using Nosler bullets. Features; varying case capacity and load density for each bullet weight and accuracy loads.

Norma - 7mm Rem. Mag.: Load data for the 7mm Remington Magnum featuring the use of Norma rifle powders.

Vihtavuori - 7mm Rem. Mag.: Load data for the 7mm Remington Magnum featuring the use of Vihtavuori rifle powders.

IMR - 7mm Rem. Mag.: Load data for the 7mm Remington Magnum featuring the use of IMR rifle powders.


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