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Magpul PMAG GEN 2 MOE AR-15 30 Round Magazine (5 Pack) & 100 Rounds of PMC Bronze .223 Remington FMJ 55gr Ammo
They use similar bullets but differ in chamber dimensions and pressure. 5.56 NATO is loaded to higher pressures and is typically safe in a 5.56 chamber only. If you have a rifle marked .223 Remington, check manufacturer guidance before shooting 5.56.
40 to 55 grain bullets are common for varmint and high-velocity target work. 55 to 77 grain bullets are popular for precision and medium game hunting, with heavier bullets offering better long-range performance and wind resistance.
Yes, .223 Remington and 5.56 NATO both feed from the same magazines.
