5.56×45mm NATO - Wikipedia
The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked …
5.56 vs .223: What’s the Real Difference? - USA Gun Shop
5 days ago · Can you shoot 5.56 in a .223 chamber? Complete guide to pressure differences, chamber specs, .223 Wylde, and …
What is .556 caliber? | [September Updated] - TheGunZone
Feb 17, 2024 · The .556 caliber refers to the diameter of the bullet used in firearms, specifically the AR-15 rifle. It is commonly used …
Best Grain for 5.56 NATO: Plinking, Defense, Hunting, And More!
Dec 29, 2025 · Our ammo experts discuss the best grain for 5.56 NATO rounds, no matter what your shooting needs are. Find out now.
5.56 NATO Rifles For Target Shooting - SIG SAUER
Whether you’re setting up at a local range with a few friends or participating in structured target shooting events, the .556 rifle …
SIG 556 for Sale - Best Price - In Stock Deals | gun.deals
Find SIG 556 for Sale. Compare prices for in stock Sig Sauer 556 guns from more than 100 stores online on gun.deals
What caliber is a .556? | [May Updated] - TheGunZone
Feb 17, 2024 · What caliber is a .556? A .556 caliber refers to the diameter of the bullet used in the .223 Remington and 5.56x45mm …
Best 5.56 Rifles 2025: Expert Reviews of the Top AR-15 Style Platforms
Discover the best 5.56 rifles of 2025. Expert reviews of AR-15 style platforms with specs, features, and what each rifle is best suited …
5.56 NATO Firearms - Springfield Armory
America’s favorite cartridge, the 5.56 offers a wide range of loadings, proven performance, and a host of capable Springfield Armory …
Best 5.56 Ammo for AR-15 — Range, Defense & Precision Picks for 2026
May 11, 2026 · M193, M855, or 77gr OTM? The right 5.56 ammo depends on barrel length, twist rate, and use case. Here's the …