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can someone explain 5.56 vs 5.7x28

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48K views 21 replies 15 participants last post by  DollarFortyNine  
I haven't bought into the 5.7. As a handgun round it is pleasant to shoot, shoots flat, and gives high capacity. That's about it, unless you are military or LE and have access to AP rounds, and have to worry about body armor clad targets.

IF going with a 5.56 diameter projectile, I'll take the extra velocity that a rifle round can give, and take advantage of the extra damage from the energy transfer and projectile fragmentation.