Remington .223 Rem CASE 55 Grain Full Metal Jacket – 200 Rounds (CASE) L223R3B

Remington .223 Rem 55 grain full metal jacket in the 200 round case, model L223R3B, hits the sweet spot between a single box and a pallet. It is enough ammunition for a serious training day with plenty left over, without the storage commitment of a thousand round order.

Two hundred rounds is what a real range session actually consumes once you start running drills rather than admiring groups.

What this Remington .223 Rem case is built for

Remington .223 Rem in case quantity is high volume practice ammunition for shooters who put in genuine range time. The 55 grain full metal jacket bullet is the workhorse projectile of the cartridge, designed to feed smoothly, print consistently and stay intact through the target.

Full metal jacket construction is what makes it range friendly. It scores cleanly on paper, it will not chew up properly rated steel plates, and it meets the ammunition restrictions almost every commercial range publishes.

The buyer here is the carbine class student, the monthly match shooter, the instructor stocking for a course, or the owner who has finally decided that skill is built through repetition rather than reading.

Features that make the case quantity worthwhile

• 200 rounds in one case, enough for a full training day plus a zero confirmation with rounds to spare.
• 55 grain full metal jacket bullet that stabilises in every .223 twist rate on the market.
• Clean ignition and consistent velocities, which is what builds real trust in your zero.
• Reliable feeding from AR pattern magazines, bolt actions and single shot rifles alike.
• Manufacturer model L223R3B, so reordering the exact load your rifle likes is straightforward.

Specifications and what they deliver downrange

This Remington .223 Rem case holds two hundred rounds of 55 grain full metal jacket ammunition under model number L223R3B. Those specifications describe the most universally useful configuration this cartridge comes in.

Fifty five grains is the original reference weight for .223 Remington. That is why it works in slow 1:12 twist varmint barrels, mid 1:9 barrels and fast 1:7 carbines with equal reliability. If you own several rifles in this chambering, one case feeds all of them.

Buying a full case usually means a single lot number across the whole delivery. Single lot ammunition is how you eliminate the small point of impact shifts that show up when you mix boxes bought months apart. If you shoot for score, that alone justifies buying deeper than you think you need to.

Consistent velocity is the quiet feature. A narrow velocity spread keeps your holds honest at 200 and 300 yards, which is where sloppy ammunition starts costing you hits rather than just points.

Range use, storage and compatibility

Everything chambered in .223 Remington runs this, and 5.56x45mm NATO chambers accept it safely because the NATO chamber is the more generous of the two. The reverse is not always safe, so mark your storage clearly.

Store the case cool, dry and out of direct sun. Transfer working quantities into a sealed ammo can with a desiccant pack and leave the balance sealed. Humidity and temperature swings degrade primers and powder over years, not the calendar itself.

Plan on a proper cleaning after a two hundred round day. Pay attention to the chamber, the bolt tail and the gas rings on a semi automatic, and keep heavy copper fouling out of the bore. If you want to step up to thousand round quantities, our ammunition category lists the deeper options.

Remington has been loading American ammunition since 1816, and this load has stayed in the lineup because it simply works.

Buy the Remington .223 Rem case, shoot it over one good weekend, and come back a measurably better rifle shooter. This ammunition ships straight to your door wherever state and local law allows.