1-b-rifles-logo.gif - 1903 Bytes 1-c-guide.gif - 780 Bytes

308 Winchester / 7.62 NATO:
Cartridge And Reloading - Ballistics And Hunting.
Written by: Kim Lockhart, Copyright.

308 Winchester:
 The 308 Winchester is a .30" caliber, centerfire rifle cartridge, loaded with .308" diameter bullets, the cartridge casing is reloadable after the cartridge has been fired or spent.

Cartridge 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.

Rifle Specifications:

Common rifling twist rates are 1 in 10" and 1 in 12":
Bore Land Diameter - .300".
Bore Groove Diameter - .308".
Chamber Headspace Go-Gauge Length - 1.6300".
Chamber Headspace No-Go-Gauge Length - 1.6340".
Chamber Headspace Field-Gauge Length - 1.6380".

Factory Ammunition Ballistics Table:
Test Rifle Weight - 8.5 Pounds.
Test Rifle Barrel Length - 24 Inches.
FPS. = Feet Per Second.
FT.LBS. = Foot Pounds.
308 Winchester
Cartridge
Manufacturer
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Muzzle
Velocity
FPS.
Muzzle
Energy
FT.LBS.
Recoil
Energy
FT.LBS.
Hornady 110 .290 3,165 2,447 11.62
Winchester 120 .256 2,850 2,164 11.47
Nosler 125 .366 3,175 2,798 13.97
Cor-Bon 130 .340 3,000 2,598 13.66
Winchester 147 .415 2,800 2,559 14.77
Hornady 150 .415 3,000 2,997 16.75
Hornady 155 .435 2,865 2,825 16.58
Hornady 165 .447 2,840 2,955 17.95
Winchester 168 .474 2,670 2,659 17.05
Federal 170 .284 2,000 1,510 12.12
Federal 175 .505 2,600 2,627 17.64
Hornady 178 .530 2,775 3,043 19.83
Remington 180 .402 2,620 2,743 18.76

History:
 The very popular 308 Winchester centerfire rifle cartridge was introduced to the public as a civilian sporting cartridge by Winchester in September 1952. Winchesters Model 70 bolt action and Model 88 lever action rifles were then chambered for the commercial 308 Winchester cartridge.

 Two years later, in 1954, the 308 Winchester or 7.62x51mm cartridge would be adopted by NATO and the cartridge would also be known as the 7.62 NATO cartridge. Rifle chambers are then modified slightly to eliminate feeding issues in the United States Rifle - 7.62 mm - M14.

 The most surprising thing with 308 Winchester chambered rifles is most are very accurate and with a barrel length of 22" you still have excellent bullet velocity for a small case capacity cartridge. The 308 Winchester is a very good cartridge for those wanting to make use of a .308" diameter bullet for hunting but not wanting the felt recoil of a 300 Winchester Magnum rifle or 30-06 Springfield. The 308 Winchester offers users rifle recoil that is quite tolerable when shooting 125-165 grain weight bullets.

Uses:
 The 308 Winchester cartridge has been used by bench rest NRA high power and metallic silhouette shooters quite successfully in competition, lending well to its accuracy reputation which is in part due to less recoil felt by shooters that the cartridge generates.

 While much has been written about the 308 Winchester cartridge it truly is a great hunting cartridge and is used as such worldwide. In North America 150 grain bullets are used quite successfully for harvesting all deer species, for the largest deer, such as moose, premium ammunition loaded with 165 grain bullets is a very good choice. 308 Winchester chambered rifles can be used quite successfully for hunting many different species of animals as they offer excellent hunting ballistics with the correct ammunition.

125 grain bullets for predators such as Bobcat, Cougar And Coyote.
308 Winchester Hunting Ammunition Ballistics:
Ammunition: Nosler 308 Win. 125 Grain.
Bullet Diameter: .308 Inch.
Bullet Weight: 125 Grains.
Bullet Ballistic Coefficient: .366.
Rifle Barrel Length: 24 Inches.
Rifle scope mounted 1.8 inches above bore center-line.
Rifle bullet trajectory set at 1 inch mid-range rise.
Rifle zeroed at 185 Yards.
Maximum point blank range is 210 yards.
/ FPS. = Feet Per Second. / IN. = Inches. / FT.LBS. = Foot Pounds.
Bullet @ Muzzle 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Velocity / FPS. 3,175 2,907 2,655 2,417 2,191 1,977
Energy / FT.LBS. 2,798 2,345 1,957 1,621 1,332 1,085
Trajectory / IN. - 1.8" + 0.9" - 0.5" - 6.9" - 19.2" - 38.8"

150 grain bullets for smaller deer size animals such as Antelope, Blacktail Deer, Hogs, Javelina, Mule Deer And Whitetail Deer.
308 Winchester Hunting Ammunition Ballistics:
Ammunition: Hornady 308 Win. Superformace 150 Grain.
Bullet Diameter: .308 Inch.
Bullet Weight: 150 Grains.
Bullet Ballistic Coefficient: .415.
Rifle Barrel Length: 24 Inches.
Rifle scope mounted 1.8 inches above bore center-line.
Rifle bullet trajectory set at 2 inch mid-range rise.
Rifle zeroed at 220 Yards.
Maximum point blank range is 260 yards.
/ FPS. = Feet Per Second. / IN. = Inches. / FT.LBS. = Foot Pounds.
Bullet @ Muzzle 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Velocity / FPS. 3,000 2,772 2,556 2,350 2,153 1,966
Energy / FT.LBS. 2,997 2,559 2,176 1,839 1,543 1,287
Trajectory / IN. - 1.8" + 1.8" + 0.8" - 5.5" - 18.1" - 38.2"

165 grain bullets for larger animals such as Bears, Caribou, Elk, Moose and Sheep.
308 Winchester Hunting Ammunition Ballistics:
Ammunition: Hornady 308 Win. Superformace 165 Grain.
Bullet Diameter: .308 Inch.
Bullet Weight: 165 Grains.
Bullet Ballistic Coefficient: .447.
Rifle Barrel Length: 24 Inches.
Rifle scope mounted 1.8 inches above bore center-line.
Rifle bullet trajectory set at 3 inch mid-range rise.
Rifle zeroed at 242 Yards.
Maximum point blank range is 285 yards.
/ FPS. = Feet Per Second. / IN. = Inches. / FT.LBS. = Foot Pounds.
Bullet @ Muzzle 100 yds. 200 yds. 300 yds. 400 yds. 500 yds.
Velocity / FPS. 2,840 2,636 2,440 2,253 2,074 1,904
Energy / FT.LBS. 2,955 2,545 2,182 1,860 1,577 1,328
Trajectory / IN. - 1.8" + 2.6" + 2.0" - 4.5" - 17.9" - 39.3"

Cartridge Case Family:
 The short-rifle-action 308 Winchester rifle cartridge was introduced to the public in 1952, since that time, additional rifle cartridges of different calibers and names have been introduced based on the use of the 308 Winchester cartridge case as the parent case thus creating a family of rifle cartridges with similar case capacity for rifle powder that fit short-action rifles. All of which offer lower recoil and good ballistics for short centerfire rifle cartridges.
243 Winchester, introduced in 1955, .24" caliber.
260 Remington, introduced in 1997, .26" caliber.
7mm-08 Remington, introduced in 1980, .28" caliber.
308 Winchester, introduced in 1952, .30" caliber.
7.62 NATO, introduced in 1954, .30" caliber.
338 Federal, introduced in 2006, .33" caliber.
358 Winchester, introduced in 1955, .35" caliber.


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