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5.56mm Nato Centerfire Rifle Ammunition

Also see 223 Remington Click Here

The 5.56mm Nato cartridge was primarily designed for military use in rifle such as M-16's and AR-15's.  Shooters should be aware of the difference between .223 Remington and 5.56mm Nato ammunition.  Although the physical dimensions of the cartridge case are the same and it is possible to fire either cartridge in the same gun, there is a deference in the design pressure, chamber and throat of the 2 different chambering.  It is safe to fire .223 Rem in any 5.56mm Nato gun but you can run in to trouble shooting 5.56mm Nato ammunition in guns designed and chambered for .223 Rem.  The main difference is that the 5.56mm is loaded to higher pressure (More powder) and guns chambered for 5.56mm have a longer throat which allows the bullet to travel farther out of the case before it engages the rifling.  This little difference helps keep the pressure down. The same cartridge fired in a .223 Rem could build up higher pressure in that chamber then the gun was designed for.   Guns chambered for .223 Rem usually have tighter tolerances and generally more accurate.  Guns chambered in 5.56mm generally have looser tolerances with longer throats which generally means less accurate but more reliable for military use.

Generally the standard military 5.56mm Nato M193 cartridge will fire a 55 grain bullet from a 20" barrel at 3,250 FPS while the civilian .223 Rem will average 3.000 FPS with the same 55 Grain bullet.  Also special primers with thicker cups have been designed us used in 5.56mm Nato ammunition to prevent the primers from flattening out when being fired.  Although many hand loaders try to reach 5.56mm with hand loaded ammunition, it is difficult to reach the same performance with the commercial powders available.  The powder used in most military 5.56mm ammunition is WC844 which some times can be found on the surplus market.  If you intend to reload 5.56mm ammunition, it is recommended that you use small rifle magnum primers or primers expressly designed for 5.56mm Nato, now commonly available.

Buy 5.56mm Nato Center fire Rifle Ammunition on sale online at discount prices in our Center fire Rifle Ammunition department.
Please note some pictures were supplied by the manufacturers and are general representation of the product line.

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Home » Ammunition By LG Outdoors » Centerfire Rifle Ammunition » 5.56mm Nato Centerfire Rifle Ammunition

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Federal Cartridge XM193 5.56mm 55 Grain Stripper Clips Ammo Can (Per 420) Md: XM193LC1AC1

Details 

Federal XM193 Ammunition - Caliber: 5.56mm - Grain: 55 - Stripper Clip Ammo Can - Per 420 Rounds....See Details For More Info.
List Price: $208.10
Price: $174.16

Available Qty: 3

Federal Cartridge 5.56mm 62 Grain SC FMJ Ammo Can/420 Md: XM855LC1AC1

Details 

Federal Ammo Can - Caliber: 5.56 Nato - Grain: 62 - Bullet Type: SC FMJ Green Tip - 420 Rounds Per Can (Rounds Come On STipPer Clips)....See Details For More Info.
List Price: $259.99
Price: $183.91

Available Qty: 42

Hornady 5.56 NATO Black Ammunition, 62 Grains, Full Metal Jacket, Per 20 Md: 81263

Details 

Hornady BLACK ammunition features versatile loads optimized for excellent performance from America’s favorite guns. Loaded with legendary Hornady bullets, Hornady BLACK ammunition is designed to fit, feed and function in a variety of platforms. Direct impingement, gas piston, suppressed, unsuppressed, inertia, bolt, pump, supersonic, subsonic, rifle, mid-length, carbine or pistol – Hornady BLACK ammunition delivers superior performance for a variety of applications. Features: - High Qualit
List Price: $20.90
Price: $11.35

Available Qty: 5

Hornady 5.56 Nato 75 Grain BTHP Superformance-Match /20 Md: 81264 Ammunition

Details 

Hornady Ammunition - Caliber: 5.56 Nato - Grain: 75 - Bullet: Boattail Hollow Point SuPerFormance Match - Muzzle Velocity: 2920 Fps - Match - Per 20....See Details For More Info.
List Price: $27.77
Price: $17.64

Available Qty: 108

5.56 Nato By Hornady 55 Grain GMX Superformance /20 Md: 81254

Details 

Hornady SuPerFormance Ammunition - Caliber: 5.56 Nato - Grain: 55 - Bullet: GMX - 20 Rounds Per Box....See Details For More Info.
List Price: $31.05
Price: $19.71

Available Qty: 25

Nosler Silver State Armory Ammunition 5.56X45mm Nato, 55 Grains, Nosler Ballistic Tip Varmint, Per 20 Md: 75000

Details 

Ssa Ammunition By Nosler Is tuned Specifically For Use In Semi-Automatic Firearms. Loaded To pressures That Reliably Cycle Semi-Auto’S For Maximum Dependability, Ssa Ammunition Is Now exclusively Loaded Up Front With Nosler Bullets For unparalleled Down Range Performance. Whether Shooting On The Range, In The Field, Law Enforcement Or Defense, operators Depend On Their Ammunition To Function as Designed With Every Trigger Pull. Ssa Ammunition Was Created, Designed And Assembled With This In Min
List Price: $24.77
Price: $19.56

Available Qty: 17

5.56mm By Winchester 55 Grain Full Metal Jacket Per 20 Ammunition Md: Q3131A

Details 

USA Brand Ammunition Is The Ideal Choice For Training-Or Extended sessions at The Range Or In The Field. As You'd Expect, USA Brand Centerfire Rifle Ammunition features High Quality And Reliability at An Economical Price. Symbol: Q3131A Caliber: 5.56mm Bullet Weight: 55 GraIns Bullet Type: F....See Details For More Info.
List Price: $11.68
Price: $8.04

Available Qty: 130

Winchester Match Grade 5.56 Ammo 77 Grain Boat Tail Hollow Point 20 Rounds Per Box

Details 

If You Are lookIng To Prove Your Rifle Has What It Takes To Win competItions Then You Need To Feed It a Steady Diet Of Match Grade Ammo. IntroducIng Winchester Match Competitive Target Loads. These Loads Are Designed With a Match Style Boat Tail Hollow Point Bullet That Weighs In at 77 graIns. Winchester Match Is Pressured To 5.56mm Nato, So Please Ensure Your Rifle Is Rated For The Extra Pressure geneRated By This Round. If Your after Long Range Accuracy, Shot after Shot, Then Trust Winchester
List Price: $35.95
Price: $26.62

Available Qty: 15

Aguila 5.56X45 Ammo 62 Grain FMJBT 50 Rounds 1E5.56110

Details 

Aguila Offers High-Quality rounds That Cycle flawlessly With Remarkable Consistency In Both Velocity And Accuracy. The Use Of Non-Corr Priming Means Reliable Ignition In Any Weather Condition. Great For Just Target Practice Or Hunting, This Is Some Of The Best Ammo Available.
List Price: $23.95
Price: $17.16

Available Qty: 44

Barnes Bullets Precision Match 5.56X45mm, 69 Grain Open Tip Match BT Ammunition, 20 Per Box

Details 

Barnes Bullets Precision Match 5.56X45mm, 69 Grain Open Tip Match BT Ammunition, 20 Per Box Manufacturer: Barnes Bullets Mfg Number: 30846
List Price: $26.95
Price: $23.16

Available Qty: 28

Barnes Bullets Precision Match 5.56X45mm, 85 Grain Open Tip Match BT Ammunition, 20 Per Box

Details 

BrNS 30848 5.56 85 OMT BT 20/10 Manufacturer: Barnes Bullets Mfg Number: 30848
List Price: $27.95
Price: $23.16

Available Qty: 168

Barnes Bullets Range AR 5.56X45mm 52 Grain Open Tip Flat Base Ammunition, 20 Per Box

Details 

Barnes Bullets Range AR 5.56X45mm 52 Grain Open Tip Flat Base Ammunition, 20 Per BoxManufacturer: Barnes Bullets Mfg Number: 30844
List Price: $19.95
Price: $15.86

Available Qty: 91

BBM Tactical 223 Remington/5.56 NATO 55 Grains Full Metal Jacket BT Ammunition, 20 Rounds Per Box Md: 223FM55ZA

Details 

The 223 Tactical Carbine is non-corrosive, military-grade ammo that has a velocity of 3190 fps along with 1247 ft lbs of energy. Great for performance and protection and made with reloadable brass….See More Details
List Price: $10.95
Price: $8.20

Available Qty: 1000

BBM Target 223 Remington/5.56 NATO 55 Grain Full Metal Jacket Ammunition, 200 Rounds

Details 

The BBM 223 Remington ammo is non-corrosive and military grade ammo…See More Details
List Price: $93.95
Price: $82.54

Available Qty: 301

BBM Target Battlepack 5.56 NATO 55 Grain Full Metal Jacket Boat Tail 200 Total Rounds (Case Price)

Details 

The 5.56x45mm battlepack is a 200 round pack of 5.56x45mm ammo. This military-grade ammo has a velocity of 3166 feet per second along with 1247 foot pounds of energy. Great for performance and protection, and made with reloadable brass.
List Price: $93.95
Price: $82.54

Available Qty: 296

Buffalo Bore S22355 Rifle 5.56 Nato Ballistic Silvertip 55 Grain 20 Rds Box Ammunition

Details 

Buffalo Bore offers Sniper Ammo In 223 Remington And 308 Winchester. They Are Available In Ballistic Tip And Boat Tail Hollow Point. The 223 Remington Is Available In 55 Gr., 69 Gr., And 77 Gr. And The 308 Winchester Is Available In 175 Gr.. This Is Field proven Rifle Ammo For Maximum Firepower.
List Price: $33.95
Price: $25.83

Available Qty: 5

Buffalo Bore Ammunition S22369 Rifle 5.56 Nato BTHP 69 Grain 20 Rds Per Box

Details 

Buffalo Bore offers Sniper Ammo In 223 Remington And 308 Winchester. They Are Available In Ballistic Tip And Boat Tail Hollow Point. The 223 Remington Is Available In 55 Gr., 69 Gr., And 77 Gr. And The 308 Winchester Is Available In 175 Gr.. This Is Field proven Rifle Ammo For Maximum Firepower.
List Price: $33.95
Price: $25.83

Available Qty: 2

Buffalo Bore Ammunition S22377 Rifle 5.56 Nato BTHP 77 Grain 20 Rds Per Box

Details 

Buffalo Bore offers Sniper Ammo In 223 Remington And 308 Winchester. They Are Available In Ballistic Tip And Boat Tail Hollow Point. The 223 Remington Is Available In 55 Gr., 69 Gr., And 77 Gr. And The 308 Winchester Is Available In 175 Gr.. This Is Field proven Rifle Ammo For Maximum Firepower.
List Price: $33.95
Price: $25.83

Available Qty: 3

Colt Ammo Defense 223 Rem/5.56 NATO 64 Grain BTHP Ammunition, 20 Rounds Per Box Md: 223R62CT

Details 

Colt's Defense ammunition is ideal for personal and home protection. It features a boat tail hollow point bullet and brass casing…See More Details
List Price: $20.95
Price: $17.49

Available Qty: 558

Colt National Match 223 Rem/5.56 NATO 62 Grain Full Metal Jacket Ammunition, 50 Rounds Per Box Md: 223R62FMJCT

Details 

Colt's National Match ammunition is ideal for personal and home protection. It features a full metal jacket match bullet and brass casing…See More Details
List Price: $30.95
Price: $26.25

Available Qty: 877

Federal XM193LCAC1 5.56mm Nato 55 Grain FMJ In Ammo Can 420 Rounds Ammuntion

Details 

This Federal Lake City Ammunition Has Been Loaded And passed True Nato Specifications. This Is The Same Ammunition That Is Currently Being Used By The US Military And Met Their Strict Quality Assurance stAndards And Specifications. Packaged In a New Sealed Mil-Spec reusable Ammo Can With Tamper Evident Seal.
List Price: $210.29
Price: $155.52

Available Qty: 250

Federal Lake City 5.56 55 Grain 600Rd XM193LPC120

Details 

Federal XM193LPC120 M193 5.56 Nato 55Gr 120Box/5Case FMJ Mini Ammo Can This 5.56 Nato Ammo Comes In a reusable Injection Molded Polymer Mini Ammo Can. The Ammo Can contaIns 600 Cartridges And Has a Weight Of 55Gr. It Is Lake City Made Ammunition.
List Price: $309.95
Price: $224.16

Available Qty: 442

Federal 5.56 Nato Metal Case 55 Grain 30 Rounds Per Box On 10 Round Clips

Details 

This Centerfire Rifle Cartridge Choice Is Very Suitable For Precision Practice And An Affordable Option For The Target Board.
List Price: $16.95
Price: $11.28

Available Qty: 1

Federal M855 5.56 Nato 62 Grain FMJ 600 Rounds In 120 Mini Ammo Can Bulk Pack/5Case Ammunition

Details 

This XM 5.56 Nato American Eagle Ball Ammunition Is Lake City-Made And Sold In a Bulk Pack. This Ammunition Is Available In 120-Count reusable Injection-Molded Polymer Mini Ammo Can
List Price: $339.95
Price: $233.50

Available Qty: 55

Federal American Eagle 5.56 Nato Clipped FMJ 55 Grain 90Box/5Case 450 Rounds Total Lake City XM193

Details 

Federal American Eagle Is Loaded With Lake City Brass To Nato specificaiTons. This Ammunition Is a Great Choice For The Shooter lookIng For a Great Affordable Round For Target Shooting, Training And Practice. Packaged In 10-Round Stripper Clips, 9 Stripper Clips To a Box, For Convenient Storage, Transport And Loading. This Ammunition Is New Production, Non-Corrosive, In Boxer-Primed, reloadable Brass Cases.
List Price: $223.95
Price: $157.64

Available Qty: 95

Hornady 81264 5.56 75 Spf BTHPM Per 20 Ammunition

Details 

It Is Fast, It Is Accurate, It Is Versatile. SuPerformance Match Ammunition achieves Muzzle velocIties Of 100 To 200 Fps Faster Than Any Conventional Ammunition. Amazing Ammunition Performance starts With Outstanding Bullets, And Hornady AMAX And Boattail
List Price: $24.95
Price: $18.62

Available Qty: 90

HORN 81263 BLACK 5.56 62 FMJ 20/10

Details 

List Price: $14.95
Price: $11.98

Available Qty: 16

Nosler 5.56 55 Grain Varmint 20 Rounds 52201

Details 

This Outstanding 5.56mm Ammo Is Designed For Defense Work And Hunting. Featuring Nosler's Best--a Bonded Copper Jacketed Soft Point Bullet, It Has Big Expansion And Deep Penetration. When Tough barriers Are obsticals, This Is The Bullet To Choose.
List Price: $29.95
Price: $24.95

Available Qty: 7

PMC 5.56XBP Battle Packs Bulk Ammo 5.56mm FMJBT 55 Grain 200Box

Details 

Caliber: 5.56 Nato Bullet Type: Full Metal Jacket Boat Tail Bullet Weight: 55 Gr Muzzle Energy: 1306 ft Lbs Muzzle Velocity: 3270 Fps Rounds Per Box: 200 Rounds Per Box, 5 Application: Target Casing Material: Brass Manufacturer: PMC/POONGSAN Model: 556XBP
List Price: $112.95
Price: $85.72

Available Qty: 14

223 Remington 55 Grain FMJ TULA Ammunition Md: Ta223550

Details 

223 Remington/5.56 Nato 55 Gr FMJ TULA Ammunition
List Price: $7.95
Price: $4.94

Available Qty: 1000

Winchester 5.56X45mm/223 Remington 55 Grain Full Metal Jacket Ammunition, 180 Rounds Per Box

Details 

Winchester 5.56X45mm/223 Remington 55 Grain Full Metal Jacket Ammunition, 180 Rounds Per Box Model Number USA3131W
List Price: $79.95
Price: $73.55

Available Qty: 1000

Winchester 5.56 45 Grain Jacketed Frangible Bullet Per 20 Ammo

Details 

Description: Positive FunctionIng No Barrel LeadIng Jacketed Frangible Bullet Ideal For High-Volume Short Range Indoor And Outdoor Training/Target Use In Modern Sporting Rifles. ?Frangible Core facilitates Rapid Bullet Break-Up Upon impactIng Hard Targets ?Brass Bullet Jacket improves Reliability And Performance ?5.56 Shellcase Improved Functionality And shellcase Strength
List Price: $13.95
Price: $9.79

Available Qty: 1000

Winchester Ammo Match Grade Boat Tail Hollow Point 5.56 Nato 77 Grain 20 Rounds Per Box S5.56M

Details 

For Serious Rifle Competition, Trust Winchester Match Ammunition. Combining Winchester Technology With proven Bullets, The Hollow Point boattail Design provides The Precision Match Shooters Demand With Every Shot. The Sleek Bullet Profile, Large boattail And Small Hollow Point maximizes Long-Range Accuracy. Winchester offers Its Match Ammunition In The Most Popular Long-Range offerIngs.
List Price: $30.95
Price: $22.95

Available Qty: 320

Winchester Varmint 243 Winchester Ammo 58 Grain 40 Rounds X243PXL

Details 

Win X243PXL 243 58VRMT 40/05 Manufacturer: Winchester Ammunition Model: X243PXL
List Price: $55.95
Price: $42.75

Available Qty: 199

Federal 565 Nato 55 Grain FMJ 100Rnd Box Ammunition XM193Bl

Details 

Federal 5.65 Nato 55Gr FMJ 100Rnd Box Mfg: Federal Cartridge Model: XM193Bl Total Rounds 100 Price Break Discount On 10 Boxes Or More. %5 Discount Will Be applied at Check Out.
List Price: $50.95
Price: $36.56

Available Qty: 100

Federal M193 5.56mm Nato 55 Grain On Stripper Clips In Ammo Can 420 Rounds AmmuntiOn XM193LCAC1

Details 

This Federal Lake City Ammunition Has Been Loaded And passed True Nato Specifications. This Is The Same Ammunition That Is Currently Being Used By The US Military And Met Their Strict Quality Assurance stAndards And Specifications. Packaged In a New Sealed Mil-Spec reusable Ammo Can With Tamper Evident Seal.
List Price: $237.95
Price: $173.97

Available Qty: 212

Federal Lake City 5.56 55 Grain 120Rd Ammunition

Details 

Federal XM193LPC120 M193 5.56 Nato 55Gr 120Box FMJ Mini Ammo Can This 5.56 Nato Ammo Comes In a reusable Injection Molded Polymer Mini Ammo Can. The Ammo Can contaIns 120 Cartridges And Has a Weight Of 55Gr. It Is Lake City Made Ammunition
List Price: $68.95
Price: $45.78

Available Qty: 185

Federal 5.56MM 223 Remington 62 Grain FMJ BT Clipped 90/5

Details 

Manufacturer: Federal Model: XM855Af90
List Price: $55.95
Price: $36.06

Available Qty: 63

Federal 5.56MM M855 62 Grain FMJ BT 150 Rd Bulk

Details 

Federal XM855 5.56mm Nato Ammunition Is Loaded To Military Specification at The Lake City Facility. This Particular Load uses The XM855 Bullet Which Is a 62 Grain Green Tip Steel Penetrator. The Finished rounds Consist Of Sealed Primers Which Is Ideal For Long Term Storage And Moisture Protection. The Ammo Comes 150 rounds To a Cardboard Box.
List Price: $85.95
Price: $57.23

Available Qty: 128

Federal 5.56MM 62 Grain FMJ BT Plastic Can 120 Rounds Ammuntion In Plastic Ammo Can

Details 

5.56 Full Metal Jacket Boat Tail. This Is The Famous And Hard To Find Mil-Spec M855 Steel Core 5.56X45 ("Green Tip") Penetrator Ammo You Have Heard About
List Price: $74.95
Price: $47.70

Available Qty: 135

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