Head to Head
5.56 vs 7.62×39
The AR's round vs. the AK's round — trajectory and accuracy vs. mass and barrier punch.
5.56 NATO
Best for: Accuracy + flat shooting
- Flatter trajectory
- Lighter recoil
- More accurate typically
- Lighter to carry more rounds
VS
7.62×39
Best for: Mass + cheap steel-case
- Heavier bullet
- Better through barriers/brush
- Often cheaper (steel case)
- Hard-hitting up close
The Verdict
5.56 for accuracy, flat trajectory, and round count; 7.62×39 for mass and barrier performance. Platform preference (AR vs AK) usually drives the pick.