[rdcbn1]

And the 7.62 has more penetration as Paul Harrell showed when he fired both at a Nissan Pathfinder.

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The AK-47 7.62 x39 has better penetration for vehicles and most forms of cover but the 5.56 has better ballistics and far better performance defeating many types of armor

[Kevmo]

Nobody gives a fuq about penetration at the time of firing. They care about accuracy, deterrence, and remaining ammo.