5.56 vs 7.62x39 - Rifle Caliber Comparison by

5.56 vs 7.62 is a battle rifle cartridge debate that every AR-15 and AK-47 owner has engaged in since WWII. Does stopping power matter or is it muzzle velocity?

7.62x39 vs 5.56 What's A Better Rifle Caliber?

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Are there any rife/carbine that can load both 5.56 and 7.62 rounds? If not, could it be made or is it to complex or heavy? - Quora

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7.62X39 VS 5.56 NATO

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