Lindcott Armory Pistol · SAAMI
5.7x28mm FN
High-velocity pistol cartridge designed to defeat body armor.
- Introduced
- 1990
- Type
- Pistol
- Origin
- Belgium
- Inventor
- FN Herstal
- Manufacturer
- FN Herstal
- Standard
- SAAMI
- Status
- Active
- Availability
- Moderate
- Bullet ⌀
- 0.224″
- Case length
- 1.138″
- Overall length
- 1.594″
- Base ⌀
- 0.313″
- Rim ⌀
- 0.313″
- Case capacity
- 11.5 gr H₂O
- Twist
- 1:9
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 48,500 psi
- Eff. range
- 200 yd
- Max range
- 1500 yd
- Recoil
- 2–4 ft·lb
Ballistics
- Velocity
- 1,900–2,350 fps
- Energy
- 250–330 ft·lb
- By real loads
- 1,650–2,500 fps · 62 loads
- Typical MSRP
- $0.85/rd · price history →
- Parent case
- —
Representative trajectory — modeled from a single velocity input, not a measured load. Real published loads span the "by real loads" range above.
Factory loads
In production — 62 active loads across 22 brands. Top 15 shown · see all 62 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC | $/rd |
|---|---|---|---|---|---|---|---|
| Elite Ammunition | T6B+P | 27 | HP | 3,000 | 539 | — | — |
| Elite Ammunition | T6B | 27 | HP | 2,800 | 470 | — | — |
| Liberty Defense | Civil Defense | 28 | HP | 2,800 | 487 | — | — |
| Elite Ammunition | SXZ | 23 | Zinc HP | 2,500 | 319 | — | — |
| Underwood | Xtreme Defender | 27 | Lehigh XD | 2,400 | 345 | — | $2.00 |
| Elite Ammunition | T6B | 27 | HP | 2,350 | 331 | — | — |
| Elite Ammunition | T6B JHP 27gr | 27 | JHP | 2,350 | 331 | — | — |
| Elite Ammunition | T6B JHP | 28 | JHP | 2,350 | 343 | — | — |
| Lehigh Defense | Xtreme Defense 27gr | 27 | Xtreme Defense | 2,350 | 331 | — | $2.50 |
| FN Herstal | SS195LF Lead-Free | 28 | HP Lead-Free | 2,350 | 343 | — | — |
| FN Herstal | SS198LF LE Lead-Free | 28 | HP Lead-Free | 2,350 | 343 | — | — |
| FN Herstal | SS190 AP Ball FMJ | 31 | FMJ AP | 2,350 | 380 | — | — |
| Lehigh Defense | Xtreme Penetrator | 30 | XP | 2,250 | 337 | — | $2.50 |
| FN Herstal | SS195LF | 27 | HP | 2,134 | 273 | — | — |
| Elite Ammunition | SBR | 35 | HP | 2,100 | 343 | — | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Dimensions
Reloading cost
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in 5.7x28mm FN
12 models in the database chamber 5.7x28mm FN. Browse all →
Connected reference
History
Developed by FN Herstal in late 1980s for NATO PDW requirement. Won NATO trials over HK's 4.6x30mm. Designed for P90 submachine gun and Five-seveN pistol. Civilian adoption limited by high cost and armor-piercing reputation, though civilian ammunition is not armor-piercing. Gained popularity after US Secret Service adoption.
FAQs
- What twist rate does 5.7x28mm FN use?
- 5.7x28mm FN typically uses a 1:9 twist rate.
- What bullet diameter is 5.7x28mm FN?
- 5.7x28mm FN uses a 0.224″ (5.7 mm) diameter bullet.
- Is 5.7x28mm FN still in production?
- 5.7x28mm FN is active; typical availability is moderate.
- What is 5.7x28mm FN used for?
- 5.7x28mm FN is primarily used for military, self defense, target.
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 62 live factory loads; the trajectory is modeled (point-mass), not measured. Spotted an error? Report it →