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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3 product(s)

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  1. Winchester 5.56x45mm 50 Grain Frangible - 20 Rounds

    $14.15

    In stock

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    Manufacturer Winchester
    Condition New
    Bullet Weight 50 Grain
    Bullet Type Frangible
    Use Type indoor range shooting, plinking at the range, steel target plinking
    Casing Type Brass
    Quantity 20
    Ammo Caliber 5.56x45mm
    Manufacturer SKU USA556JF
    Primer Type Boxer
    Magnetic No
    UPC Barcode 020892219816
    Cost Per Round 70.8¢ per round

    These frangible .223 Remington rounds from Winchester are great for close-range indoor training as well as outdoor practice with steel targets. The 50 grain projectiles used in these cartridges are made entirely from compressed copper powder and are designed to break up on impact without the risk of inadvertently launching fragments back at shooters and observers. The 50 grain weight is only slightly lighter than the average .223/5.56mm bullet and will maintain similar ballistics with a muzzle velocity of 3,000 feet-per-second.

    The rest of these cartridges consist of conventional components including reloadable brass casings and non-corrosive Boxer primers. If you've got your heart set on ringing steel, be sure to check out Widener's assortment of target systems to pump up the training value as well as the fun!

  2. Federal LE Tactical 223 Rem 55 Grain SP - 20 Rounds

    $21.00

    In stock

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    Manufacturer Federal
    Condition New
    Bullet Weight 55 Grain
    Bullet Type Soft-Point (SP)
    Use Type home defense, plinking at the range
    Casing Type Brass
    Quantity 20
    Ammo Caliber 223 Remington
    Manufacturer SKU T223A
    Primer Type Boxer
    Magnetic No
    UPC Barcode 029465095154
    Cost Per Round $1.05 per round

    This Federal Tactical 223 Rem ammunition is custom made for your urban rifle. Law Enforcement need something that will absolutely provide knockdown power and precision under extreme situations. This ammunition is designed for use in semi-automatic rifles and meets mil-spec qualifications for optimum functioning. Each round contains a soft point bullet and shoots a muzzle velocity of 3,220 feet per second.

    Federal ammunition is headquartered in Anoka, Minnesota and manufactures a complete line of shotshell, centerfire, and rimfire ammunition. Federal is a legendary brand that has built a reputation on solid, reliable, and superior ammunition. You need the best, your life depends on it. Grab a few boxes today - you will be glad you did!

  3. Federal 223 Rem 69 Grain Gold Medal Match HPBT - 20 Rounds

    $22.85

    In stock

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    Manufacturer Federal
    Condition New
    Bullet Weight 69 Grain
    Bullet Type Hollow-Point Boat Tail (HP-BT)
    Use Type match or precision shooting, varmint hunting
    Casing Type Brass
    Quantity 20
    Ammo Caliber 223 Remington
    Manufacturer SKU GM223M
    Primer Type Boxer
    Magnetic No
    UPC Barcode 029465089320
    Cost Per Round $1.14 per round

    The .223 Remington has become one of the leading rounds in the country, and few brands make such a high-quality product like Federal Premium Ammunition. This round uses a hollow point boat tail bullet to deliver reliable downrange accuracy and effective performance upon impact.

    This round has a muzzle velocity of 2,950 feet per second and a muzzle energy of 1,333 foot pounds. This makes it highly effective for medium to long range target shooting and hunting. With this box of 20, you should have enough for a full day of hunting.

    Federal Premium Ammunition is one of the most recognized ammo brands for accuracy and reliability. They have been making high-quality rounds since 1922, and have provided rounds for hunters, target shooters, and all types of gun owners. With rounds for all the most popular calibers, as well as muzzleloading and reloading supplies, Federal is a go-to choice for all of your ammo needs.

3 product(s)