.22 long
Introduced 1871CIP standard
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
- 1871
- Production
- not recorded
- Standards body
- C.I.P.
- Case type
- Rimmed
- Case shape
- Straight
Dimensions
- Bullet diameter
- 5.72 mm0.2252 insource
C.I.P. G1, maximum bullet diameter.
- Bore diameter
- not recorded
- Case length
- 15.57 mm0.6130 insource
C.I.P. L3, maximum case length.
- Overall length
- 22.56 mm0.8882 insource
C.I.P. L6, maximum cartridge overall length.
- Rim diameter
- 7.06 mm0.2780 insource
C.I.P. R1.
- Neck diameter
- 5.72 mm0.2252 insource
C.I.P. H2.
- Base diameter
- 5.74 mm0.2260 insource
C.I.P. P1.
Pressure
- Maximum pressure
- 100 MPa14,504 psisource
C.I.P. Pmax 1000 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
No load data recorded yet. Without a sourced bullet mass and velocity there is nothing honest to compute, so the ballistic figures on pages that chamber this cartridge stay blank rather than being estimated into existence.
Chambered in
Computed from every entry that lists this cartridge. Nothing here is hand-maintained.
No entry on the site is chambered in it yet.
Gallery
Image credit
- Title
- File:22 Long and 22 LR.jpg
- Author
- Ryan D. Larson
- Licence
- Public domain
- Source
- https://commons.wikimedia.org/wiki/File:22_Long_and_22_LR.jpg
Detail
The .22 Long arrived in 1871 as a longer-cased answer to the .22 Short: the same rimmed, straight, 5.72 mm bullet, but a case lengthened by roughly 5 mm to hold more black powder and push the same bullet faster. It was built for rifles rather than pocket revolvers, and it extended the .22 rimfire’s reach at a point when the Short’s mild report and low recoil had already made the caliber the default choice for target and gallery shooting.
Its own market position did not last. In 1887 the .22 Long Rifle combined the .22 Long’s case with a heavier bullet, and within a few decades the newer round had taken over almost every role the Long had held. The .22 Long survives today mainly as a low-cost, low-recoil option still loaded by a handful of manufacturers, largely for shooters using older firearms chambered specifically for it, rather than as a first choice for anyone buying rimfire ammunition new.
This entry’s case, bullet and pressure dimensions are transcribed from the current C.I.P.
datasheet and are verified. No source found states a muzzle velocity for this cartridge
alongside the barrel length it was measured from, so no load figure is recorded — a velocity
with no barrel length behind it is not a measurement this site can use. The photograph is a
period comparison shot showing the .22 Long beside the .22 Long Rifle that displaced it; no
image of the .22 Long on its own, isolated, was found under a free licence.
References
- .22 long · 1325495864 · read 2026-09-01
- C.I.P. TDCC datasheet — 22 Long · 2000-06-07 · read 2026-09-01
Last verified 2026-09-01 · review status: agent-populated