Buy .223 Bulk Ammo Online

Looking to buy .223 Ammo in Bulk for your store or personal collection? Stock up at Pro Armory!

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The most popular rifle in America is the Modern Sporting Rifle (MSR), also called the AR-15. With a wealth of different types available, the “AR” is one of the most adaptable platforms used to build a rifle — for hunting, home defense, or just plinking at the range.

But, ARs tend to have a hearty appetite.

Standard magazines hold either 20 or 30 rounds. Anyone who plans on shooting more than once or twice a year will need a lot more than that. Fortunately, most AR-15s are chambered in .223 Remington or 5.56×45 NATO. As centerfire cartridges go, both of these are fairly affordable. They also offer a great blend of velocity and value with low recoil, making them popular with many groups of shooters and hunters.

Pro Armory is loaded with both 5.56 and .223 bulk ammo for sale at a great price — to keep your favorite rifle fed and you on the trigger.

Whether you need bulk steel-cased blasting ammo, M855 green tip, M193 on stripper clips, or varmint-vaporizing VMax, has you covered. Check it out!

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Introduction to Bulk .223 Ammo

The .223 Remington is one of the most widely used centerfire cartridges today. This is due largely to the popularity of MSRs and the versatility of the round itself.

Initially built at the request of the U.S. military, the round was designed for a high-speed cartridge used in a new rifle — what would soon become the select-fire M16 and its semi-automatic cousin, the AR-15.

The .223 delivers plenty of speed from quality ammo, with velocity north of 3,000 FPS out of a 20” barrel. Most Full Metal Jacket (FMJ) .223 ammo is velocity-dependent, meaning it needs to exceed 2,600 FPS for optimal terminal effect. Unless you absolutely need the compact size of a barrel less than 16 inches, don’t shortchange yourself in terms of barrel length.

Types of .223 Ammo to Buy In Bulk

.223 ammo is available in several bullet options, each designed for different scenarios. The vast majority of .223 is Full Metal Jacket (FMJ) ammo weighing either 55 or 62 grains. If you’re buying .223 ammo in bulk, these weights are what you’ll find most of the time.

There are also other bullet weights offered in .223. Some varmint bullets are as light as 30 grains while high-end precision bullets can weigh 77 grains or even 90. But, most loads over 77 grains exceed the established cartridge overall length (COAL) that permits chambering and operation in MSRs. In other words, the bullet sticks out of the case too far.

Besides FMJ, there are .223 hollow point designs that feature an open tip which expands once it meets a target. Likewise, tipped bullets with a polymer plug in the cavity serve the same purpose.

Frangible .223 ammo looks like FMJ but is designed to disintegrate upon contact with a hard object to prevent overpenetration.

Traditional soft point (SP) bullets are a great choice for reliable expansion and “knock-down” power. Soft points have a copper jacket like FMJs but feature an exposed lead tip that “pushes” back against the rest of the bullet when impacting a target, creating destruction through a massive energy deposit.

Brass Case vs. Steel Case

When looking for .223 ammo, the case you choose matters (brass-cased or steel-cased).

Most ammunition is brass-cased, but the more affordable options are steel-cased. Why? Steel is cheaper than brass, which is a huge benefit, but there are drawbacks as well.

The bottom line is that steel-cased .223 is a great option for most shooters, as long as you’re okay with cleaning your rifle more often than you would when shooting exclusively brass.

.223 Remington vs. 5.56 NATO: Which is best, and Are They Interchangeable?

Which is better: .223 Remington or 5.56 NATO? The answer depends on what you’ll be doing with your rifle.

If you’re hunting, either a 5.56 or .223 chamber/barrel will work. If you’re going to be shooting high volume, consider a .223 chamber because most bulk ammo is .223. Plus, it’s the cheaper of the two.

If you’re looking for a do-all rifle, go with the 5.56 — it’s much more versatile.

Interchangeability Rules

.223 CAN BE shot in a 5.56 chamber, but NOT the other way around.

Full-house NATO-SPEC 5.56 is loaded to a higher pressure than .223, which means prolonged use can damage your rifle (and maybe even you in the process). The NATO round is like +P handgun ammo; you can shoot non-+P in a +P gun, but DO NOT shoot +P in a non-+P gun.

What Can You Expect When Ordering Bulk .223 Bullets From ProArmory?

High-Quality Ammo at Great Prices

Whether you’re looking for the best .223 ammo on the market or just something to go bang, we’ve got a wide selection in stock and ready to ship—fast.

An Expansive Selection

We tailor our selection to carry what most shooters want—high performance, reliable .223 and 5.56 at an affordable price. We’ve got 62-grain M855 green tip, 55-grain M193, 55-grain Wolf all in small boxes or discounted bulk cases.

Best-in-Class Support

Everyone on our support team is a certified gun nut — our team is made up entirely of U.S. military veterans who eat, sleep, and breathe guns and ammo. We’re ready to answer all your questions with no attitude, gimmicks, or BS. We’re just happy to help out a fellow shooter or ammo dealer.

Frequently Asked Questions

Where can I buy bulk .223 ammo?

You’ve found the place! is your go-to source for friendly service, great selection, fast shipping, and great ammo prices.

Yes, it is perfectly legal to buy .223 ammo online. Some states require your ammo ship to a dealer after you undergo a background check or have a FOID or “ammo card” before you take it home.

What’s the difference between .223 Remington and 5.56 NATO ammo?

.223 can be considered more of a “sporting” round that’s loaded to lower pressure than 5.56x45mm NATO. Beyond that, .223 is available in a wider variety of bullet options whereas 5.56 is a standard NATO round, and is mostly FMJ.

And this bears repeating: You CAN shoot .223 in a 5.56-chambered gun but NOT the other way around. That said, if you’re looking to have just one rifle, make it a 5.56 so you never have to worry about shooting ammo that might damage your gun.

What is the best bulk .223 ammo?

This depends on what you’re looking for in terms of performance,  value, and use case. If you’re taking a training course, you want a mix of value and performance. You’ll probably be fine with Wolf, but if you want that best, reach for an M193 clone of some sort.

What if you just want to ring steel or blast bottles and cans? In this case, you’re better off with a budget-friendly option. If you’re wanting to really see what your rifle can do, consider a performance-minded load to maximize accuracy.

How should you store bulk .223 ammo?

Ask 10 people this question, and you’ll probably get 10 different responses. But a lot of people store .223 in ammo cans.

The most popular cans are also the most common: .50-cal and 7.62-cal cans. Sure, they originally held linked ammo for machine guns, but they’re sturdy, they stack well, and they’re relatively cheap. Plus, most have a rubber gasket to keep moisture out.

While modern .223 uses smokeless powder inside a metallic cartridge, the old saying, “keep your powder dry” still applies.

Stock Up on .223 Bulk Ammo from Pro Armory

.223 Remington and 5.56 NATO are solid choices for buying in bulk. Whether you’re shooting at the range or loading up for your next hunting trip, Pro Armory has what you need and much more.

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