FN 5.7×28mm
Introduced 1990FN HerstalCIP standard
Also known as 5.7×28mm — the same cartridge under different names, all of which find this page.
Dimensions and pressure
Generated from the schema, like every specification table on this site, so a figure recorded on this entry cannot be missing from the table.
Identity
- Designed by
- FN Herstal
- Introduced
- 1990
- Production
- not recorded
- Standards body
- C.I.P.
- Case type
- Rebated rim
- Case shape
- Bottleneck
Dimensions
- Bullet diameter
- 5.7 mm0.2244 insource
C.I.P. G1, maximum bullet diameter.
- Bore diameter
- not recorded
- Case length
- 28.9 mm1.138 insource
C.I.P. L3, maximum case length.
- Overall length
- 40.5 mm1.594 insource
C.I.P. L6, maximum cartridge overall length.
- Rim diameter
- 7.8 mm0.3071 insource
C.I.P. R1.
- Neck diameter
- 6.38 mm0.2512 insource
C.I.P. H2.
- Base diameter
- 7.95 mm0.3130 insource
C.I.P. P1.
Pressure
- Maximum pressure
- 345 MPa50,038 psisource
C.I.P. Pmax 3450 bar; 1 bar = 0.1 MPa exactly.
- Pressure standard
- C.I.P.
SAAMI and C.I.P. measure pressure differently and their figures are not interchangeable, which is why the body is always named beside the figure.
Loads
Velocity is recorded per barrel length as published. A gun page interpolates between these points and never projects beyond them.
SS190 armour-piercing ball
FN Herstal
- Bullet mass
- 2.009 g31.00 grsource
Published as 31 gr; 1 gr = 0.06479891 g exactly.
- Cartridge mass
- not recorded
- Bullet type
- FMJ, steel penetrator
- G1 BC
- not recorded
- G7 BC
- not recorded
Chambered in
Computed from every entry that lists this cartridge. Nothing here is hand-maintained.
Gallery
Image credit
- Title
- File:Cartridge 5.7x28mm FN CC BY-SA by Grasyl.jpg
- Author
- Grasyl(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:Cartridge_5.7x28mm_FN_CC_BY-SA_by_Grasyl.jpg
Detail
FN’s response to a 1989 NATO requirement for a personal defence weapon: a cartridge small enough that a soldier could carry two hundred rounds, fast enough to defeat body armour at a hundred metres, and mild enough to be fired from something the size of a submachine gun. The case is rebated — its rim is narrower than its body — which lets a bolt face sized for a smaller cartridge close on a fatter case.
Whether it succeeded depends on which claim is being tested. Against soft armour it does what was asked. Against the argument that a pistol-calibre carbine was already adequate, it has never fully won, and adoption outside special-purpose units has been thin.
The single load below carries a bullet mass and no velocity. The article states 716 for the SS190 without a unit that can be checked against a published energy, and this site records a velocity only when the figure and the barrel that produced it are both stated.
References
- C.I.P. TDCC datasheet — 5,7 x 28 · 2002-05-15 · read 2026-08-31
- FN 5.7×28mm · 1367519979 · read 2026-08-31
Last verified 2026-08-31 · review status: agent-populated