Hunting construction
Soft-point, bonded, partitioned, and monolithic expanding bullets are designed differently. Their intended impact-velocity ranges and use cases come from the bullet or ammunition manufacturer.
THE CARTRIDGE LIBRARY · SPORTING & MATCH RIFLE
7.62 NATO
A NATO rifle-cartridge designation associated with the 7.62×51mm case family. Individual military loads retain their own projectile and test specifications.
2A Ledger reference desk · Sources checked October 18, 2026
Bullet diameter · reference0.3079 in7.820 mm
Know the exact name
At a glance
- Cartridge family
- Sporting & match rifle
- Bullet specification
- 0.3079 in / 7.820 mmReference bullet Ø
- Factory examples
- 1 loadsSelected, sourced examples below
- Weight in cited examples
- 175 grGrains measure mass, not powder charge
7.62 NATO is identified by its complete cartridge designation. The resource-table alternative is 7.62 × 51 mm NATO. A caliber number, bullet diameter, or family resemblance on its own does not identify ammunition compatibility.
.308 Winchester and 7.62 NATO relationships require the firearm manufacturer's guidance. Neither name identifies every load's construction or pressure method.
Keep separate from .308 Winchester. Identification reference; no NATO maximum is claimed.
Dimensions: open the named cartridge reference ↗. The displayed number is reference bullet ø, rather than an assertion that every manufactured projectile or barrel has this exact diameter.
Origins & evolution
Background & development
The 7.62 NATO emerged from the postwar effort to standardize an allied rifle-and-machine-gun cartridge. The United States promoted the T65 family, while British .280-caliber ammunition and Belgian FN rifles formed part of the same international trials. The resulting decisions concerned alliance procurement and rifle design as well as the cartridge itself.
In May 1957 the United States selected the T44 rifle design as the M14, using the 7.62 mm cartridge. Other nations adopted different rifles in the same ammunition family, including the FN FAL and HK G3, while machine guns such as the FN MAG and M60 extended its service role. That multinational platform history is central to the NATO designation. The closely related commercial .308 Winchester developed alongside the military program, but its sporting standards and civilian history are a separate subject.
Historical sources: U.S. Army R&D magazine: From ‘Committee of Safety’ to the M16, 1979 ↗ · BICC SALW Guide: 7.62×51 mm platforms ↗
Construction changes the story
Loads, variations & specialty offerings
Match construction
Open-tip match and tipped match bullets prioritize consistency and aerodynamics. A match designation does not by itself mean the projectile was designed for hunting expansion.
Specialty offerings
Lead-free, reduced-recoil, and premium long-range products are separate load designs when offered. Compare the exact SKU, bullet weight, test barrel, and intended role rather than relying on a cartridge-wide average.
In the cited 7.62 NATO examples, bullet weights are 175 grains. These are the weights actually present in this source selection, not a claim that every possible loading is listed.
Bullet construction background: Hornady: anatomy of a bullet ↗. Exact product descriptions and velocities are cited in the factory table.
From the factory catalog
175 grains
2,620 fps
Sierra BTHP, catalog designation 7.62×51mm — 2022 specification
Compare all 1 cited factory load records
| Maker / product | Bullet mass | Published construction | Muzzle velocity | Test barrel | Source |
|---|---|---|---|---|---|
| WinchesterS76251M | 175 gr 11.34 g | Sierra BTHP, catalog designation 7.62×51mm — 2022 specification | 2,620 fps 799 m/s | Not stated here; see source | Winchester · PDF p. 2 ↗ |
Explore the published data
Ballistics you can inspect
What can be plotted reliably?
The sources checked for this guide do not provide a comparable barrel-length series. A single factory muzzle-velocity specification does not establish a velocity curve. The factory records and any missing test conditions are identified below.
An estimate needs an anchor and a defensible method. No curve has been invented from bullet diameter or from another cartridge’s name.
How to interpret the comparison
Changing bullet weight also often changes bullet design and propellant choice. Two curves are comparisons of the listed products, not a controlled experiment proving that bullet weight alone caused the difference. Catalog downrange points are projections under the maker’s conditions; barrel-study points are recorded observations in the study firearm.
Direct answers
Common questions
What is 7.62 NATO?
A NATO rifle-cartridge designation associated with the 7.62×51mm case family. Individual military loads retain their own projectile and test specifications.
What diameter does 7.62 NATO use?
The named identification reference gives 0.3079 inches (7.820 mm), reference bullet ø. This reference value is different from a casual caliber nickname.
Are similarly named cartridges interchangeable?
.308 Winchester and 7.62 NATO relationships require the firearm manufacturer's guidance. Neither name identifies every load's construction or pressure method.
Are the graph values measured or estimated?
This guide has no supported multi-point graph in the sources reviewed. Its factory specifications and source links are shown in the load section.
Does higher energy mean the best load?
Energy is calculated from mass and velocity. It does not establish accuracy, expansion, penetration, pattern density, recoil, or suitability for a particular firearm. Use the exact product documentation and firearm manual.
Trace the facts
Sources & methodology
Compiled by 2A Ledger from the linked standards, manufacturer publications, and identified test records. Checked October 18, 2026. Historical tests and older catalogs retain their original dates; a listing here does not establish current availability.
- BICC: cartridge identification reference ↗
- Sierra: 7.62 NATO cartridge background ↗
- Winchester · PDF p. 2 ↗
- U.S. Army R&D magazine: From ‘Committee of Safety’ to the M16, 1979 ↗
Diameter figures preserve the cited drawing convention. Inch–millimeter conversion uses exactly 25.4 mm per inch. Factory specifications describe the maker’s test setup; your firearm, ammunition lot, temperature, and measuring method can produce different results. This is an educational factory-ammunition reference, not a reloading manual.