Rifle · CIP
7x33mm Sako
7x33mm Sako is a rimless bottlenecked rifle cartridge of Finland origin.
- Caliber
- 0.2858″ · 7.26 mm
- Introduced
- 1942
- Case
- Rimless
- Parent
- 9mm Luger
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1942
- Type
- Rifle
- Origin
- Finland
- Inventor
- Sako
- Manufacturer
- Sako
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 23 gr H₂O
- Twist (typical)
- 1:15.8
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 40,611 psi, CIP transducer
- Eff. range
- 250 yd
- Max range
- 1250 yd
- Recoil
- 2.6 ft·lb
Introduced by Sako
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 7x33mm Sako, so this is the shape gravity alone gives the advertised velocity. Drag would steepen it. The tool below solves real loads through their published G1 or G7 model.
Open in Ballistic Compare- Parent case
- 9mm Luger
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.26 | 0.286 | ✓ |
| Neck ⌀ | 7.95 | 0.313 | ✓ |
| Shoulder ⌀ | 9.52 | 0.375 | ✓ |
| Shoulder angle | 18° | — | ≈ |
| Base ⌀ | 9.93 | 0.391 | ✓ |
| Rim ⌀ | 10.00 | 0.394 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.27 | 0.050 | ✓ |
| Neck length | 4.23 | 0.167 | ≈ |
| Case length | 33.33 | 1.312 | ✓ |
| Overall length | 44.44 | 1.750 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 7x33mm Sako is highlighted below.
Reloading costestimate cost per round vs factory
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.
Lineage
Connected reference
History
Introduced around 1942 by Sako, derived from the 9mm Luger.
FAQs
- What twist rate does 7x33mm Sako use?
- 7x33mm Sako typically uses a 1:15.8 twist rate.
- What bullet diameter is 7x33mm Sako?
- 7x33mm Sako uses a 0.2858″ (7.26 mm) diameter bullet.
- Is 7x33mm Sako still in production?
- 7x33mm Sako is active; typical availability is limited.
- What is 7x33mm Sako used for?
- 7x33mm Sako is primarily used for hunting.
- What is 7x33mm Sako based on?
- 7x33mm Sako is derived from the 9mm Luger case.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
