Description
Scorpio 223 Rem 55gr FMJ is range ammunition, priced and packaged to be shot in quantity. A 55 grain full metal jacket bullet in 223 Remington, 20 rounds to the box and 1000 to the case, aimed squarely at AR-15 owners who want trigger time rather than a collection.
- Why Scorpio 223 Rem 55gr FMJ suits the AR-15
- Full specifications
- Buying Scorpio 223 Rem 55gr FMJ by the case
- Honest notes before you buy
- What Scorpio 223 Rem 55gr FMJ is not for
- The bottom line
Why Scorpio 223 Rem 55gr FMJ suits the AR-15
Fifty-five grains is the original 223 Remington bullet weight and it remains the default for practice. Scorpio 223 Rem 55gr FMJ stabilizes in every common twist rate, from the old 1:12 barrels through the 1:9 and 1:7 rifles built today, which means you can buy it without checking what is stamped on your barrel. That universality is most of why it stays the cheapest thing on the shelf.
Velocity from a 16 inch barrel lands in the 2,900 to 3,100 feet per second range depending on the specific lot and rifle. That is flat enough that a 50 yard zero keeps you inside a few inches out to 200, which covers nearly all practical range shooting.
Full specifications
- Caliber: 223 Remington
- Bullet weight: 55 grain
- Bullet: Full Metal Jacket
- Case: Brass, boxer primed
- Rounds per box: 20
- Rounds per case: 1000
- Chamber: Safe in 223 Rem and 5.56 NATO
- Intended use: Range and training
Full metal jacket construction means a lead core inside a copper jacket, with no expansion by design. The bullet holds together, feeds from any STANAG magazine, and punches a clean hole in paper. It is the correct bullet for practice and the wrong bullet for anything you intend to stop.
Buying Scorpio 223 Rem 55gr FMJ by the case
The 1000 round case is the reason this listing exists. Scorpio 223 Rem 55gr FMJ is bulk 223 Remington practice ammunition, and buying it by the case is what turns a shooting plan into a shooting habit. The gap between a box a month and a case a year is the gap between owning a rifle and being able to use one.
It is brass cased and boxer primed, which separates Scorpio 223 Rem 55gr FMJ from the steel cased imports it competes with on price. If you reload, the cases are worth collecting. If you do not, boxer priming still tends to mean more consistent ignition and less fouling than Berdan primed steel.
Honest notes before you buy
This is economy ammunition and Scorpio 223 Rem 55gr FMJ should be judged on that basis. Expect useful practical accuracy rather than match groups. Two to three inches at 100 yards from a decent AR is a fair expectation, and that is entirely adequate for drills, plate racks and steel at distance.
Lot to lot consistency on value ammunition is looser than on premium lines. If you find a lot that shoots well in your rifle and you plan to compete or zero around it, buy that lot deep rather than assuming the next case will match.
What Scorpio 223 Rem 55gr FMJ is not for
This is the important caveat. The 55 grain full metal jacket bullet in Scorpio 223 Rem 55gr FMJ is not a defensive or hunting projectile. It does not expand, it overpenetrates, and on game it wounds rather than kills cleanly. Many states prohibit FMJ for deer outright. Buy a soft point or a bonded load for those jobs and keep this for the range.
Stored dry and away from heat, Scorpio 223 Rem 55gr FMJ will keep for decades. Sealed cases of modern smokeless ammunition routinely outlast the rifles bought to shoot them.
The bottom line
Chamber note worth knowing. Ammunition marked 223 Remington is safe in both 223 and 5.56 NATO chambers. The reverse is not true, so if your rifle is marked 223 Rem only, this is the correct choice and 5.56 marked ammunition is not. You can read more about the bullet design at swiftbullets.com, or browse the rest of our stock on the MAG5 Firearms ammunition page.
MAG5 Firearms keeps the Scorpio 223 Rem 55gr FMJ in stock and moving, and we are glad to talk through bullet choice before you order. If you are working up a load for a new rifle, a single box of the Scorpio 223 Rem 55gr FMJ is a sensible place to start.






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