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5.56MM NATO AMMO

556mm ammo for sale

5.56mm ammunition for sale with free shipping on bulk ammunition orders available only at Target Sports USA. We carry 5.56mm ammo from top brand ammo manufacturers such as Federal, Remington, Winchester, Hornady, PMC and others. Whether you are buying bulk 5.56mm ammunition for target shooting or personal protection 5.56mm ammo, we've got it all!

Read Our 5.56MM NATO AMMO Guide (Bottom of Page)
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A QUICK "PRIMER" ON 556 AMMO

The 5.56x45mm NATO cartridge has a storied history, developed in the 1960s to meet the evolving needs of NATO forces for a lightweight, high-velocity round suitable for modern combat rifles like the M16 and AR-15 platforms. This cartridge is known for its speed, accuracy, and relatively low recoil, making it a versatile choice for a range of shooting activities. Standard 5.56 NATO rounds typically use a 55-grain or 62-grain bullet, but you'll find options ranging from lighter 45-grain loads up to heavier 77-grain loads, each catering to different shooting preferences and applications

One common point of confusion among shooters is the difference between 5.56x45mm NATO and .223 Remington ammunition. While they appear nearly identical, there are important distinctions. The 5.56 NATO is loaded to higher pressures and has a slightly longer throat in the chamber, allowing it to handle this increased pressure. It's generally safe to shoot .223 Remington ammo in a 5.56 NATO chamber, but firing 5.56 ammo in a .223 Remington chamber can lead to increased chamber pressure, which isn't ideal for the firearm's design and could pose safety risks. Note: Using 556 ammo in a 223 Wylde barrel is OKAY (rated for higher pressures). It's crucial to know your rifle's chambering and stick to the appropriate ammunition.

In terms of options, Federal's XM193 and PMC's X-TAC are standout choices that consistently rank high with our customers. Federal XM193 is a 55-grain FMJ round built to military specifications, offering reliable performance that's perfect for training or tactical applications. PMC's X-TAC line provides both 55-grain and 62-grain options, designed for shooters who demand consistent accuracy and reliability in every round.

TOP CONSIDERATIONS WHEN BUYING 5.56 NATO AMMO

When buying 5.56 NATO ammunition—whether you need bulk 5.56 ammo or specialized self-defense loads—it’s helpful to consider your intended use and understand how different load types perform.

Purpose: For range training and target practice, FMJ (Full Metal Jacket) rounds are affordable and perform well. If you're considering ammunition for hunting or self-defense, look into soft-point (SP) or hollow-point (HP) rounds, which expand upon impact, causing greater energy transfer and stopping power.

Bullet Weight: Bullet weight affects how a round behaves at different distances. Lighter bullets (like 55 grains) are fast and offer a flatter trajectory, making them ideal for short to medium distances. Heavier bullets (62 grain, 70 grain, 77 grain, or even 80 grain 5.56 ammo) maintain momentum better and are less affected by wind, offering advantages at longer ranges.

Choosing a Manufacturer: Stick to reputable brands with proven consistency. Federal's XM series is a go-to for many shooters seeking reliable, military-spec ammunition. PMC provides high-quality, affordable options suitable for various applications. Winchester and Hornady also offer specialized loads that cater to different shooting needs.

Consider Barrel Twist Rate: If you’re serious about accuracy, know your barrel’s twist rate. Faster twist rates (1:7) stabilize heavier bullets (62 grains and up) more effectively, while slower twist rates (1:9 or 1:12) are better suited for lighter bullets (55 grains or less). Many modern AR-15s feature a 1:8 or 1:9 twist, offering versatility across common bullet weights.

5.56 NATO AMMO FREQUENTLY ASKED QUESTIONS

Is 5.56 ammo better than 223?
"Better" depends on your rifle’s chambering and intended use. The 5.56 NATO is loaded to higher pressures and generally offers slightly higher velocity, but it requires a 5.56 NATO or .223 Wylde chamber to be used safely.
Is 556 a good self defense round?
Yes, 5.56 can be effective for self-defense when using appropriate ammo, such as hollow points or frangible rounds, which reduce the risk of over-penetration. Many shooters also appreciate the caliber’s relatively low recoil and flat trajectory.
Is 5.56 deadlier than 9mm?
The 5.56 round generally delivers higher velocity and greater energy transfer than a 9mm. However, “deadlier” can depend on factors like shot placement, ammo type, and the specific situation.
Are black tip bullets illegal?
Typically, black tip ammunition refers to armor-piercing (AP) rounds, which are subject to federal regulations and may be restricted or illegal in certain areas. Always check local laws before purchasing.
What does green tip ammo mean?
Green tip 5.56, such as M855, features a 62-grain FMJ bullet with a steel penetrator core, designed to improve penetration against hard targets. It’s commonly referred to as “green tip” due to the painted tip.
How far can 5.56 shoot accurately?
Under ideal conditions and with proper equipment, 5.56 can remain effective out to 500 yards or more, especially with heavier bullets. Skilled marksmen using specialized loads have pushed the round’s effective range even further.
Which is deadlier 223 or 556?
They’re very similar. The main difference lies in 5.56’s higher chamber pressures. However, bullet selection and shot placement can be more influential than the minor differences in cartridge pressure.
What caliber is 5.56 equal to?
The 5.56 and .223 Remington both use a .224 caliber bullet. The primary differences are pressure levels and chamber specifications.
Is there a difference between 5.56 and 5.56 NATO?
The term "5.56 NATO" generally refers to military-spec 5.56 ammunition loaded to specific standards, including higher pressure and velocity. Commercially labeled 5.56 may vary slightly in specs, but the design is essentially the same.
Is 5.56 lethal at 500 yards?
Yes, 5.56 retains lethal potential at 500 yards, though accuracy and terminal performance depend on factors like bullet weight, barrel length, and environmental conditions.
Why can't you shoot 5.56 out of a 223?
.223 Remington chambers are not designed to handle the higher pressures of 5.56 NATO rounds. Doing so can lead to excessive chamber pressure and potential safety hazards.

OUR TOP 5.56 NATO AMMO RECOMMENDATIONS

THE 5.56 NATO AMMO "ROUND UP"

Whether you're preparing for a day at the range, gearing up for a competition, or ensuring you’re equipped for defense scenarios, we have 5.56 NATO ammunition options that meet the highest standards of performance and reliability. The caliber’s versatility, coupled with today’s diverse ammo selections, means you can find the perfect round to suit your needs without compromise. Each brand we carry is trusted by professionals and enthusiasts alike, and at Target Sports USA, we’re here to help you make the best choice for your firearm and shooting goals. If you’re looking for 5.56 ammo for sale, bulk 556, or even 1000 rounds 556, we’ve got you covered with top-quality options at competitive prices.

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