5.45x39mm vs 5.56x45mm.

[Old Stinky]

5.45x39mm vs 5.56x45mm.

[Old Stinky]

By the way, please don't base your answer ammo availabilty, I'm just wondering about performance.

[AAM]

What type of question is that, 5.56 is better by a long shot.

[Treestand]

I Vote for 5.56x45 US over the 5.45x39 Russian

[Old Stinky]

AAM, the reason i'm asking the question is becuase I know nothing about the 5.45. If I knew that the 5.56 is better than the 5.45 than I wouldn't have asked.

[Edward J. Palumbo]

I think the 5.56x45mm has much more to offer.

[jhjimbo]

5.45x39 vs. 5.56x45. Slow and heavy vs. fast and light. Both are found all over the world in copious amounts.
I will vote for the 5.56x45, American design,American bred.
P.S. did you know the original lethality tests by the Army of the 5.56x45 were done on pigs.

[mspl8sdcntryboy]

Yeah jhjimbo, and secondary tests were on VC and NVA.

[Safado]

mspl8sdcntryboy,
Now that's funny!

[jhjimbo]

Actually, the goal at the time was a round to wound, so one or two other combatants would be occupied taking care of the wounded and out of combat.
The pigs were examined for the wound channel of the various hits and it was determined the round did the tumbling and change of direction they were looking for.