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308 Winchester / 7.6251mm NATO:
Cartridge And Reloading - Ballistics And Hunting.
Written by: Kim Lockhart, Copyright.

308 Winchester Centerfire Rifle Cartridge:
 The popular 308 Winchester centerfire rifle cartridge is a commercial, rimless, bottleneck cartridge case design that is loaded commercially (factory produced ammunition) or reloaded by individual handloaders with various combinations of primer, powder and .308" diameter bullets. Handloaders can calculate the kinetic energies of their handloads with the use of these formulas.

308 Winchester Reloading Specifications:

Bullet Diameter - .308".
Primer Diameter - .210".
Primer Type - Large Rifle.
Case Neck Diameter - .343".
Case Shoulder Diameter - .454".
Case Base Diameter - .471".
Case Rim Diameter - .473".
Minimum Case Length - 2.005" / Trimmed.
Maximum Case Length - 2.015" / Stretched.
Minimum Cartridge Overall Loaded Length - 2.490".
Maximum Cartridge Overall Loaded Length - 2.810".
Maximum Average Pressure - 62,000 Pounds Per Square Inch.

308 Winchester Reloading Data:
 For the Deer, Elk or Moose hunter hand-loading or reloading his or her own 308 Winchester ammunition, Western Powders, Accurate 2520 rifle powder does an impressive job of launching 150 grain .308" diameter bullets at high velocity. Accurates online reloading data shows that a 150 grain .308" diameter Hornady SST bullet using 44.5 grains of Accurate 2520 powder can be driven to a velocity of 2,770 feet per second loaded at a maximum cartridge overall length of 2.735" in the 308 Winchester. This load does not top out until the 150 grain bullet is at 3,006 feet per second at a chamber pressure of 61,771 PSI. For the 150 grain bullet reload if you sighted your 308 Winchester hunting rifle in dead on at 220 yards it would only be 2 inches high at 150 yards and only 3.4 inches low at 275 yards which would be an excellent deer, elk and moose load.

308 Winchester Load Data And Ballistics Table
308 Winchester Long Range Load Data:
Test Powder Used = Accurate 2520.
Test Bullet Used = Hornady - SST - .308" diameter.
Test Primer Used = Winchester - WLR.
Test Case Used = Winchester - 308 Winchester.
Test Case Trimmed Length = 2.005".
Loaded Cartridge Overall Length = 2.735".
Test Barrel Length = 24".
Test Barrel Twist Rate = 1 in 12".
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.
150 .226 .415 44.5 2,770 49.4 3,006 61,771
Long Range Ballistics Table For Above Maximum Load:
Bullet @ Muzzle 100
yds.
200
yds.
300
yds.
400
yds.
500
yds.
600
yds.
Velocity Fps. 3,006 2,778 2,561 2,355 2,158 1,970 1,793
Energy Ft.lbs. 3,009 2,570 2,185 1,847 1,550 1,293 1,071
Trajectory
Inches
- 1.5" + 1.5" 0 - 6.8" - 19.9" - 40.6" - 70.1"


308 Winchester 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 - 308 Winchester: Load data for the 308 Winchester featuring the use of Barnes bullets.

Nosler - 308 Winchester: Load data for the 308 Winchester using Nosler bullets. Features; varying case capacity and load density for each bullet weight and accuracy loads.

Norma - 308 Winchester: Load data for the 308 Winchester featuring the use of Norma rifle powders.

Vihtavuori - 308 Winchester: Load data for the 308 Winchester featuring the use of Vihtavuori rifle powders.

IMR - 308 Winchester: Load data for the 308 Winchester featuring the use of IMR rifle powders.


308 Winchester Reloading Supplies:
Reloading Kits On Sale
Reloading Presses, Kits and Equipment On Sale At:
(Amazon - Brownells - Cabela's - Sinclair - Sportsman's Warehouse)
.308" Diameter Rifle Bullets For Sale:
.308" Diameter Rifle Bullets, Barnes, Berger, Hornady, Lapua, Nosler, Remington, Sierra, Speer, Swift and Winchester.
 Sponsor - Sinclair int.
308 Winchester Brass For Sale:
308 Winchester Brass, Federal, Hornady, Lapua, Norma, Nosler, Remington and Winchester.
 Sponsor - Sinclair int.
308 Winchester Reloading Dies For Sale:
308 Winchester Reloading Dies, Forster, Hornady, Lee, Lyman, RCBS, Redding and Wilson.
 Sponsor - Sinclair int.
Rifle Cartridge Reloading Powders For Sale:
Rifle Powders, Accurate, Alliant, Hodgdon, IMR, Ramshot, Vihtavuori and Winchester.
 Sponsor - Sinclair int.
Rifle Cartridge Reloading Primers For Sale:
Rifle Primers, CCI, Federal, Magtech, Remington,
Winchester and Wolf.
 Sponsor - Sinclair int.


Centerfire Rifle Cartridges:
Brass
Primers
Powder
Bullets
Reloading Process
Reloading Equipment
Reloading Accuracy
Bullet Run-Out
Load Testing
Black Powder Reloading
Calculating Load Recoil
Centerfire Rifle Ballistics
Hunting Ballistics And Sight-In
Precision Targets
Precision Bold Targets