223 (5.56) Ammo
.223 Remington ammunition and 5.56x45 NATO are closely related and sometimes interchangeable cartridges depending on the firearm they are to be used with. Manufacturers typically offer guidance on this point. In general, the 5.56 NATO ammunition the military uses and is for sale to the civilian market operates at higher pressures than .223 Remington ammo. Most, but not all, AR-15s are chambered for 5.56 NATO and can fire both types of ammo.
Many loads in both calibers follow the M193 or M855 standard, both of which are military specifications. M193 ammo typically fires a 55 grain full metal jacket bullet at 3,240 feet per second, while M855 ammo fires a heavier 62 grain FMJ bullet at about 3,100 feet per second. These common standards are very helpful when sighting in your optics and you'll find both cartridges in-stock and available in cheap bulk packs here at Widener's
Certain specialized loads deviate from these common standards. Competition grade .223/5.56 ammo fires a heavier bullet (most commonly a Sierra MatchKing) in the 77 grain range to provide better stability and more predictable trajectories; varmint loads, on the other hand, fire light 30-40 grain bullets at very high velocities to produce lethal fragmentation against pest animals.
One of the most sought after range loads for this caliber is Lake City ammunition, which is produced by Federal Premium Ammunition at the Lake City Army Ammunition Plant in Independence, Missouri. LCAAP production is typically excess from government contracts and is popular due to its military origins and high quality.
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Hornady Superformance Match 5.56x45mm 75 Grain HP-BT - 20 Rounds
$27.75Manufacturer Hornady Condition New Bullet Weight 75 Grain Bullet Type Hollow-Point Boat Tail (HP-BT) Use Type match or precision shooting, plinking at the range, varmint hunting Casing Type Brass Quantity 20 Ammo Caliber 5.56x45mm Manufacturer SKU 81264 Primer Type Boxer Magnetic No UPC Barcode 090255812640 Cost Per Round $1.39 per round These heavyweight 5.56x45mm loads stretch the limits of their caliber thanks to Hornady's Superformance Match standards. In general, Superformance loads utilize unique propellant blends to achieve muzzle velocities that are well beyond the norm; that's why these rounds launch 75-grain BTHP projectiles at 2,910 feet-per-second from a 20-inch barrel, lending them amazing range capability for match use or long-range shooting in general.
The powder is contained within a reloadable brass casing which has a small amount of moisture-sealant in its primer pocket along with a Boxer primer; this arrangement guarantees reliable ignition under any conditions. The 75-grain BTHP at the top of the cartridge has a boat tail rear, tapered ogive, and tiny hollow tip for drag resistance which contributes to smaller groups. The bullet is built by feeding lead through the bullet's hollow point in order to build a dense core free of distortion while leaving the copper AMP jacket's pristine dimensions untouched.
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Hornady Non-Toxic 223 Rem 35 Grain PT – 20 Rounds
$27.85Manufacturer Hornady Condition New Bullet Weight 35 Grain Bullet Type NTX Use Type varmint hunting Casing Type Brass Quantity 20 Ammo Caliber 223 Remington Manufacturer SKU 83266 Primer Type Boxer Magnetic No UPC Barcode 090255832662 Cost Per Round $1.39 per round Developed during the Vietnam War, the 223 Rem has become one of the most popular rounds in the Western World among militaries, civilians, and law enforcement. Whatever your needs are, whether they be hunting medium game, eradicating varmints, defending your home, or competing in a shooting competition, the 223 Rem is the perfect round for you with its fantastic, low recoil, phenomenal accuracy, and amazing speed.
Hornady has been around since the end of World War Two and has come to be one of the most innovative ammunition providers in the world, making just the high quality and effective ammo you need. These Hornady Non-Toxic, 35 grain, polymer tipped rounds fire at the incredible velocity of 4000 feet per second and produce massive expansion and have fantastic terminal performance, making these the perfect rounds for taking out even the speediest varmints out there.
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Hornady Critical Defense 223 Rem 55 Grain FTX – 20 Rounds
$28.85Manufacturer Hornady Condition New Bullet Weight 55 Grain Bullet Type Flex-Tip-Technology (FTX) Use Type home defense Casing Type Nickel-Plated Brass Quantity 20 Ammo Caliber 223 Remington Manufacturer SKU 80270 Primer Type Boxer Magnetic No UPC Barcode 090255802702 Cost Per Round $1.44 per round This 223 Rem cartridge from Hornady’s Critical Defense line of ammunition is optimized in every way to help you keep your home uninfluenced by burglars. The round’s 55 grain FTX projectile features the Flex Tip, which compresses into the bullet upon impact in order to initiate rapid expansion. The Flex Tip works reliably even at lower velocities, and optimizes performance in lever action rifles as well.
The FTX bullet also features an InterLock ring, which mechanically locks its high antimony lead core and specially engineered heavy jacket together to provide stellar weight retention during penetration. This bullet additionally offers a flat trajectory and great accuracy thanks to its secant ogive profile.
Thanks to this round’s casing’s nickel plating, it’s very easy to spot during a chamber check in a darkened environment. Furthermore, its specially formulated propellant reduces both recoil and muzzle flash, so you can count on firing rapid follow-up shots in the dark as well. -
Hornady Critical Defense 223 Rem 73 Grain FTX – 20 Rounds
$28.85Manufacturer Hornady Condition New Bullet Weight 73 Grain Bullet Type Flex-Tip-Technology (FTX) Use Type home defense Casing Type Nickel-Plated Brass Quantity 20 Ammo Caliber 223 Remington Manufacturer SKU 80260 Primer Type Boxer Magnetic No UPC Barcode 090255802603 Cost Per Round $1.44 per round This 223 Rem cartridge from Hornady’s Critical Defense line of ammunition features a 73 grain FTX projectile. The heavy FTX is able to penetrate deeply, and is prevented from shedding very much of its weight during penetration by its InterLock ring. The FTX’s secant ogive profile grants it the ballistic coefficient needed for accuracy at longer ranges. The FTX’s Flex Tip reliably initiates powerful expansion even at lower velocities, and additionally serves to protect the hollow point from clogging with fabric and other media.
A Critical Defense cartridge’s factory fresh brass casing is plated with nickel, which enhances its ability to cycle seamlessly through a semi-automatic weapon and safeguards it against corrosion caused by atmospheric moisture. If you ever have to engage a threat in the nighttime, you’ll appreciate how this round’s low-flash propellant emits little light when ignited, protecting your vision so you can continue firing accurately. -
Black Hills Barnes Multi-Purpose Green 223 Rem 55 Grain HP - 50 Rounds
$72.85Manufacturer Black Hills Ammunition Condition New Bullet Weight 55 Grain Bullet Type Frangible Use Type steel target plinking Casing Type Brass Quantity 50 Ammo Caliber 223 Remington Manufacturer SKU M223N16 Primer Type Boxer Magnetic No UPC Barcode 612710124503 Cost Per Round $1.46 per round Grab a few of these 50-round boxes of .223 Remington ammo from Black Hills for tactical training and home defense with your AR-15 or other .223/5.56 NATO chambered rifle. These cartridges fire Barnes Multi Purpose Green (MPG) frangible bullets. Unlike other frangible projectiles, Multi Purpose Green bullets have a gilding metal jacket that protects the powdered copper-tin core. This ensures reliable cycling alongside heavy fragmentation upon impact. The fragmenting effect virtually eliminates the risk of ricochets for safe training while delivering strong terminal performance for varmint hunting or self-defense emergencies.
Each cartridge in this box fires a 55-grain version of the MPG at a muzzle velocity of 3,150 feet per second. In terms of external ballistics, this ammo is roughly comparable to M193 mil-spec ball and should not require large adjustments to optics for users of either M193 or M855 ammo.
Black Hills ammunition is made in the USA using non-corrosive primers and brass cases.
Customer Reviews
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very quick shipping
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quick shipping
Review by charles (Posted on 8/16/2020)
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Barnes Precision Match 223 Rem 77 Grain OTM BT – 20 Rounds
$29.85Manufacturer Barnes Condition New Bullet Weight 77 Grain Bullet Type Open Tip Match Use Type match or precision shooting, plinking at the range Casing Type Brass Quantity 20 Ammo Caliber 223 Remington Manufacturer SKU 32018 Primer Type Boxer Magnetic No UPC Barcode 716876223770 Cost Per Round $1.49 per round Barnes Precision Match ammunition is here to treat you to some of the best accuracy you’ve ever witnessed! This 223 Rem cartridge features the Match Burner – a 77 grain open tip match boat tail projectile that is designed for competitive shooting events!
First things first: an OTM bullet is not intended for hunting or home defense, simply because its hollow point nose cavity isn’t engineered for terminal expansion. The OTM’s meplat has a narrow aperture because liquid lead was poured through it – hence the bullet’s voidless, balanced, and rearward-situated core. The bullet’s narrow tip, tapered tail, and sleek, thin jacket are all in the service of minimizing drag, increasing downrange momentum, and enhancing precision. Its massive 77 grain weight gives the bullet greater resistance to wind drift as well (Barnes recommends a barrel twist of 1:8” or faster for this ammo).
This round has a G1 ballistic coefficient of 0.349. Many variables will determine exactly which trajectory the bullet follows, but you can realistically expect around -9.57” drop at 300 yards when you set your rifle’s 1.5” high sights on a 200-yard zero.
Barnes loads this ammo in Utah with match primers, fastidiously measured propellant charges, and new brass cases that belong at a reloading press once they have been emancipated from their bullets. -
Barnes Precision Match 5.56x45 69 Grain OTM BT – 20 Rounds
$30.85Manufacturer Barnes Condition New Bullet Weight 69 Grain Bullet Type Open Tip Match Use Type match or precision shooting, plinking at the range Casing Type Brass Quantity 20 Ammo Caliber 5.56x45mm Manufacturer SKU 30846 Primer Type Boxer Magnetic No UPC Barcode 716876150892 Cost Per Round $1.54 per round Barnes is highly regarded for the quality of their solid copper bullets – but the old Utahan company certainly knows how to make a great traditional lead-core bullet as well. For proof of that you need look no further than this Precision Match series 5.56x45 ammunition, which features the Match Burner open tip match boat tail projectile!
This round’s OTM BT is a big boy at 69 grains. It’ll supply you with a lower muzzle velocity of 2,900 fps, but that pays off in the form of superior downrange momentum – precisely the property which gives a bullet greater immunity to wind drift. The OTM BT’s match jacket, tapered tail, form-fitted lead core and hypodermic needle-like tip give the bullet the balance and sleek profile it requires to exhibit a 0.330 ballistic coefficient. That translates to 300-yard trajectory which pinnacles at 6.4”, as well as supersonic velocity until approximately 850 yards.
You may already know this, but the OTM BT is unsuitable for hunting game larger than varmints. The bullet may technically have a nose cavity, although that feature is not designed to initiate terminal expansion at any velocity. As such the OTM BT’s terminal ballistics are pretty much identical to an FMJ’s.
Match-grade primers, expertly loaded propellant and top-end reloadable brass cases complete Barnes’ awesomely accurate Match Burner bullets. Order a box or five and prepare to witness your 5.56 rifle’s true potential! -
Black Hills Barnes 223 Rem 62 Grain TSX – 50 Rounds
$94.85Manufacturer Black Hills Ammunition Condition New Bullet Weight 62 Grain Bullet Type TSX Use Type home defense, hunting boar, hunting whitetail deer Casing Type Brass Quantity 50 Ammo Caliber 223 Remington Manufacturer SKU M223N18 Primer Type Boxer Magnetic No UPC Barcode 612710125531 Cost Per Round $1.9 per round If you've set up your AR-15 for defense or varmint hunting, you can make good use of this .223 Remington ammunition from Black Hills. These cartridges fire the Barnes TSX hollow point bullet, which delivers rapid fragmentation and highly effective performance against coyotes and other pest animals.
Each round in this box of 50 fires a 62 grain version of the TSX at about 3,100 feet per second, producing similar external ballistics to M855 ball ammo. This is a valuable trait, since it means you can fire range loads and hunt without adjusting your optics before either activity.
Black Hills is a high end ammo manufacturer and defense contractor based in Rapid City, South Dakota. Their products use non-corrosive Boxer primers and reloadable brass cases.