.30 Carbine
Introduced 1941CIP standard
Also known as 7.62×33mm — 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
- not recorded
- Introduced
- 1941
- Production
- not recorded
- Standards body
- C.I.P.
- Case type
- Rimless
- Case shape
- Straight
Dimensions
- Bullet diameter
- 7.85 mm0.3091 insource
C.I.P. G1, maximum bullet diameter.
- Bore diameter
- not recorded
- Case length
- 32.77 mm1.290 insource
C.I.P. L3, maximum case length.
- Overall length
- 42.67 mm1.680 insource
C.I.P. L6, maximum cartridge overall length.
- Rim diameter
- 9.14 mm0.3598 insource
C.I.P. R1.
- Neck diameter
- 8.53 mm0.3358 insource
C.I.P. H2.
- Base diameter
- 9.06 mm0.3567 insource
C.I.P. P1.
Pressure
- Maximum pressure
- 320 MPa46,412 psisource
C.I.P. Pmax 3200 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.
M1 ball
- Bullet mass
- 7.128 g110.0 grsource
Published as 110 gr; 1 gr = 0.06479891 g exactly.
- Cartridge mass
- not recorded
- Bullet type
- FMJ
- G1 BC
- not recorded
- G7 BC
- not recorded
| Barrel | Velocity |
|---|---|
| 457.2 mm18.00 in | 579 m/s1,900 fps |
Chambered in
Computed from every entry that lists this cartridge. Nothing here is hand-maintained.
- M1 carbine
Winchester Repeating Arms Company
Gallery
Image credit
- Title
- File:.30 Carbine Ball Mk1 Great Britain.jpg
- Author
- Jim Miles(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:.30_Carbine_Ball_Mk1_Great_Britain.jpg
Detail
Designed in 1940 for a weapon that did not yet exist, against a requirement for something to give drivers, gunners and radio operators more reach than a pistol without the weight of a rifle. Winchester built it on the old .32 Self-Loading case, straight-walled and rimless, throwing a 7.1 g round-nosed bullet at a little under 600 m/s.
It is routinely described as underpowered and routinely compared to the wrong thing. Against the 7.92×33mm Kurz that Germany fielded in the same years it is clearly the lesser cartridge; against the .45 ACP it replaced in the hands of the people who actually carried it, it roughly triples the muzzle energy and quadruples the useful range.
The single load below is the service round, and its test barrel is stated — which is the only reason it appears here at all.
References
- C.I.P. TDCC datasheet — 30 Carbine · 2002-05-15 · read 2026-08-31
- .30 Carbine · 1368987336 · read 2026-08-31
Last verified 2026-08-31 · review status: agent-populated