Rifle · CIP
6x47mm Lapua
The 6x47mm Lapua is a precision target cartridge created by necking down the 6.5x47mm Lapua case to accept 6mm (.243") bullets.
- Caliber
- 0.2429″ · 6.17 mm
- Introduced
- 2005
- Case
- Rimless
- Parent
- 6.5x47mm Lapua
- Primary use
- target_shooting, precision_rifle_competition
- Status
- Active
- Introduced
- 2005
- Type
- Rifle
- Origin
- Finland
- Inventor
- Lapua
- Manufacturer
- Lapua
- Standard
- CIP
- Status
- Active
- Availability
- Specialty
- Case capacity
- 48 gr H₂O
- Twist (typical)
- 1:8
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 60,191 psi
- Eff. range
- 1000 yd
- Recoil
- 5–8 ft·lb
Introduced by Lapua
Ballistics
Published velocity/energy data isn't available for 6x47mm Lapua. Parent case: 6.5x47mm Lapua.
Performance
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 · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 6.17 | 0.243 | ✓ |
| Neck ⌀ | 6.93 | 0.273 | ~ |
| Shoulder ⌀ | 11.59 | 0.456 | ✓ |
| Shoulder angle | 30° | — | ✓ |
| Base ⌀ | 11.95 | 0.470 | ✓ |
| Rim ⌀ | 12.01 | 0.473 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.37 | 0.054 | ✓ |
| Neck length | 7.29 | 0.287 | ≈ |
| Case length | 47.00 | 1.850 | ✓ |
| Overall length | 71.12 | 2.800 | ~ |
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. 6x47mm Lapua is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
2 reloading powders listed for 6x47mm Lapua, fastest to slowest. Cross-reference in the finder →
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
Lapua developed the 6.5x47mm Lapua in 2005, and the necked-down 6x47mm variant followed as precision shooters explored the case capacity. The cartridge gained significant traction in European precision rifle competition, particularly F-Class and PRS-style events. It occupies a sweet spot in the 6mm cartridge spectrum: more efficient than the 6mm Creedmoor, more manageable than the 6mm Norma BR, and purpose-built for long, high-BC bullets.
FAQs
- What twist rate does 6x47mm Lapua use?
- 6x47mm Lapua typically uses a 1:8 twist rate.
- What bullet diameter is 6x47mm Lapua?
- 6x47mm Lapua uses a 0.2429″ (6.17 mm) diameter bullet.
- Is 6x47mm Lapua still in production?
- 6x47mm Lapua is active; typical availability is specialty.
- What is 6x47mm Lapua used for?
- 6x47mm Lapua is primarily used for target_shooting, precision_rifle_competition.
- What is 6x47mm Lapua based on?
- 6x47mm Lapua is derived from the 6.5x47mm Lapua case.
- What are the best powders for 6x47mm Lapua?
- Reloading powders commonly listed for 6x47mm Lapua include N135, LT-32.
Sources & provenance
- Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
- Standard C.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 20 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →