For practice volume, military-pattern 7.62x51 ball like PMC X-TAC 147 gr is the practical bulk choice. Save match ammunition for zeroing, load development, and the shots that count. Always follow your rifle's chamber marking.
.308 Winchester and 7.62x51 NATO share external dimensions, and the names get used interchangeably. They are not identical specifications. Differences in chamber dimensions and how pressure is measured mean you should follow your rifle manufacturer's guidance about what it's rated to fire. The widely repeated rule of thumb: rifles chambered for .308 Winchester fire 7.62x51 without issue. Firing commercial .308 in a rifle chambered only for 7.62 NATO, especially older military surplus rifles, is where cautions usually apply.
| 7.62x51 ball (e.g. X-TAC) | Match .308 (e.g. Gold Medal Match) | |
|---|---|---|
| Purpose | Volume practice | Precision and zeroing |
| Typical bullet | 147 gr FMJ boat-tail (M80-type) | 168 to 175 gr match hollow point |
| Accuracy expectation | Service-grade | Match-grade |
| Cost per round | Lower | Higher |
| Best use | Drills, plinking, function checks | Groups, dope, competition |
Why Buy Ball by the Case
A .308 is expensive to feed, and most shooting (drills, positional practice, getting comfortable with recoil) doesn't need match accuracy. Military-pattern ball is loaded for consistent function across many rifles, making it the sensible volume load. Buy a case, check that it runs in your rifle, and keep it for the high-round-count work.
PMC X-TAC 7.62x51 147 gr FMJ-BT
Bulk defaultPMC's military-specification line. The practical bulk practice load for 7.62 NATO and .308-marked rifles.
Federal Gold Medal Match .308 175 gr SMK (120-round can)
For zeroing and precision work, not volume. Buying one lot in a can helps keep your dope consistent.
Key takeaways
- .308 Winchester and 7.62x51 NATO share dimensions but aren't identical specifications. Follow your chamber marking.
- .308-marked rifles are generally accepted as fine with 7.62x51; the reverse needs more caution, especially with surplus rifles.
- Buy military-pattern ball like PMC X-TAC for volume; buy match ammo for zeroing and precision.
- Buying one lot of match ammo keeps your dope consistent.
FAQ
Can I shoot 7.62x51 in my .308 rifle?
It's widely accepted as fine in rifles chambered for .308 Winchester. When in doubt, follow the manufacturer's guidance.
Can I shoot .308 in my 7.62 NATO rifle?
Many modern rifles handle it, but cautions apply, particularly for older military surplus rifles. Check with the manufacturer or a qualified gunsmith.
What does M80 mean?
M80 is the U.S. military designation for standard 7.62x51 ball, a roughly 147-grain FMJ load. Commercial lines like PMC X-TAC follow that pattern.
Is X-TAC accurate enough for long range?
It's service-grade, which is fine for practice and moderate distances. For precision shooting and small groups, use match ammunition.