Score the best gun deal on Frontier 5.56x45mm NATO 55gr FMJ ammo at just $8.29 for 20 rounds—that's only $0.41 per round! This unbeatable discount on accessories beats recent averages of $10.34, saving you big on high-quality outdoor sporting goods. Don't miss this limited-time steal for your shooting needs! Frontier 5.56x45mm NATO 55gr FMJ goin' for $8.29 for 20 rounds—we busted our humps huntin' these deals like a possum in a poke. (This is a very strong price at $8.29. Recent prices have been between $10.34 – $10.34 (average $10.34). That's about $0.41 per round.)