The .308 Winchester has been around since 1952 and it shows no signs of going anywhere. Walk into any deer stalking estate in Scotland, any long-range target shooting club in England, or any military armoury across NATO and you’ll find this cartridge. It’s not fashionable – it’s just good. Accurate, reliable, widely available, and chambered in more quality rifles than almost any other centrefire round.
It’s also the casing we use for our .308 Nickel Plated Bullet Cufflinks and .308 Winchester Bullet Keyring – so we know this round rather well.
Table of Contents
What is the .308 Winchester?
The .308 Winchester was introduced by Winchester in 1952 as a commercial sporting cartridge. Two years later, NATO adopted a slightly modified version as the 7.62x51mm standard round for allied military forces – making the .308 the commercial twin of one of the most widely used military cartridges in the world.
The two are closely related but not identical. The .308 Winchester has slightly thinner case walls and a marginally different chamber specification to 7.62x51mm NATO. Most .308 rifles will safely chamber NATO ammunition, but the reverse isn’t always true. In practice, for sporting use in the UK the distinction rarely matters – they’re loaded to similar pressures and perform comparably at typical hunting and target distances.
Quick specs:
- Introduced: 1952, by Winchester
- Calibre: .308 inches / 7.82mm
- Case length: 51mm
- Overall cartridge length: 71mm
- Typical bullet weight: 147-175gr
- Muzzle velocity: 800-900 m/s depending on load
- Effective range: 800m+ for precision shooting
In the UK, the .308 Winchester is one of the most commonly held Section 1 centrefire calibres. It comfortably meets the legal minimums for every deer species, both under the Deer Act 1991 in England and Wales and under the Scottish deer legislation, which is a big reason it is so popular here.
Who Designed the .308 Winchester?
No single person. The .308 grew out of the US Army’s search for a shorter replacement for the .30-06 after the Second World War. Engineers at Frankford Arsenal developed a run of experimental cartridges, known as the T65 series, in the late 1940s, starting from a case very similar to the .300 Savage but with less body taper.
Winchester took the design to the civilian market first. In 1952 it launched the round as the .308 Winchester, two years before NATO standardised its own version of the T65 as the 7.62x51mm NATO in 1954. That is why the commercial name carries Winchester’s badge, even though the work started in a government arsenal.
When Was the .308 Winchester Invented?
Development ran through the late 1940s, and the cartridge went on sale as the .308 Winchester in 1952. NATO followed with the 7.62x51mm in 1954, and the US Army’s M14 rifle carried the military round into service from 1959.
The First .308 Winchester Rifles
Winchester’s own Model 70 bolt-action was among the first rifles chambered for the new round, and the company followed with the Model 88 lever-action and the Model 100 semi-automatic. A short, full-power cartridge suited lever and semi-auto sporting rifles well, and that helped the .308 catch on with hunters long before the Remington 700 arrived in 1962.
Today, a “.308 rifle” simply means any rifle chambered for the .308 Winchester. That covers everything from a lightweight stalking rifle to an F-Class target rifle or a semi-automatic AR-10 type.
Firearms Chambered in .308 Winchester: A Timeline of Iconic Rifles
The versatile .308 Winchester cartridge has been chambered in a wide range of rifles over the decades. Here are some of the most notable firearms, presented in order of their introduction:
M14 Rifle (1959)
The M14 was the US military’s answer to the post-war requirement for a new standard rifle. It arrived in 1959, chambered in the newly adopted 7.62x51mm NATO, and served as the primary US battle rifle through the early years of the Vietnam War. It was heavier and longer than what followed, but the accuracy was exceptional. Derivatives like the M21 and M25 sniper variants stayed in service with US special operations forces well into the 2000s, and the civilian Springfield Armory M1A remains popular today.
Remington 700 (1962)
The Remington 700 arrived in 1962 and quietly became one of the most influential bolt-action designs ever made. Its three-position safety, enclosed bolt face, and bedded action made it inherently accurate straight from the factory – which is why the US Marine Corps adopted the Model 700 as the basis for their M40 sniper rifle. In the UK, the 700 is a common sight on deer stalking estates and at long-range target days. It’s not glamorous but it consistently does what you need it to do.
Browning BAR (1966)
The Browning BAR brought semi-automatic reliability to a round that had previously been the preserve of bolt guns. Introduced in 1966, it gave hunters a faster follow-up shot without sacrificing the power of the .308. It’s not a tactical rifle – it was designed purely for the field – and that focus shows in how well it handles in woodland or on open ground. Still in production and still popular across Europe and North America.
AR-10 Rifle (Original Design in 1956, Modern Variants Popular Today)
Eugene Stoner designed the AR-10 before he designed the AR-15 – the .308 came first. The original 1956 design lost the US military contract to the M14 but the platform never went away. Modern AR-10 variants from manufacturers like DPMS, Armalite, and Knights Armament give shooters the ergonomics and modularity of the AR platform in a full-power .308 package. Popular with competitive shooters in the UK for practical rifle and long-range disciplines.
FN SCAR 17 (Introduced in Early 2000s)
The FN SCAR 17S is the .308 version of the Special Operations Forces Combat Assault Rifle – developed by FN Herstal in Belgium for US SOCOM in the early 2000s. Where most battle rifles are adapted from existing platforms, the SCAR was designed from scratch to be modular, reliable in extreme conditions, and easy to maintain in the field. It’s expensive, but among military and serious tactical shooters it has earned a strong reputation. The folding stock and short-stroke gas piston system set it apart from most .308 semi-automatics.
Why the .308 Winchester Matters to Shooters and Collectors
What keeps the .308 Winchester relevant after more than seventy years is straightforward. The ballistics are well understood – there are more than seventy years of data on how it performs at every distance in every condition. The ammunition is produced by every major manufacturer and available at virtually every gun shop in the UK. And the rifles chambered for it cover every purpose from woodland deer stalking to F-Class competition at 1,000 yards.
It’s also forgiving. Compared to the magnums and wildcats that have come and gone, the .308 is easy to load for, easy to suppress, and easy to shoot accurately without punishing recoil. That combination of performance, practicality, and availability is what keeps it in service with military forces, police marksmen, and sporting shooters alike – and what makes it worth writing about more than seventy years after it first appeared.
.308 Winchester Cartridge Dimensions
These are the standard published dimensions. Our .308 keyrings and cufflinks are made from real cases, so they match these figures, give or take the small variations you get between makers.
| Dimension | Inches | Metric |
|---|---|---|
| Bullet diameter | 0.308 in | 7.82 mm |
| Neck diameter | 0.343 in | 8.72 mm |
| Shoulder diameter | 0.454 in | 11.53 mm |
| Base diameter | 0.471 in | 11.96 mm |
| Rim diameter | 0.473 in | 12.01 mm |
| Rim thickness | 0.054 in | 1.37 mm |
| Case length | 2.015 in | 51.2 mm |
| Overall length | 2.800 in | 71.1 mm |
| Case capacity | 56 grains of water | 3.6 ml |
.308 Winchester FAQ
Is the .308 Winchester the same as 7.62x51mm NATO?
Almost, but not quite. They share the same origin and the same outside dimensions, but the chamber specifications and case walls differ slightly, and military rounds are usually loaded to lower pressures. Treat them as close cousins rather than twins.
What cartridges are based on the .308?
The .308 is the parent case for a whole family, including the .243 Winchester, the 7mm-08 Remington and the .260 Remington, all made by necking the .308 case down to take a smaller bullet.
Why is it called the .308?
The number is the bullet diameter in inches: 0.308 in, or 7.82 mm. The 7.62 in 7.62x51mm NATO refers to the bore diameter across the lands instead, which is why the same bullet ends up with two different numbers.
Can you own a .308 bullet keyring in the UK?
Yes. Our .308 keyrings are made from once-fired cases with a seated bullet, with no powder and no live primer, so they are inert and legal to own without a certificate.
How Our .308 Nickel Plated Bullet Cufflinks Celebrate This Iconic Round
At Keyring King we handcraft our .308 Winchester cufflinks and keyrings from genuine once-fired brass casings – the same calibre covered in this article. If you want to carry a piece of that history, take a look at the .308 Nickel Plated Bullet Cufflinks or the .308 Winchester Bullet Keyring. Prefer the military version? Our 7.62×51 NATO bullet keyring is made from the NATO round, and the .243 Winchester keyring is the .308 necked down to 6mm.
