Rifle · Wildcat
6x47mm Remington
The .222 Remington Magnum necked to 6mm — a benchrest and varmint wildcat from before the 6 PPC took over..
- Caliber
- 0.243″ · 6.172 mm
- Introduced
- 1960
- Case
- Rimless
- Parent
- .222 Remington Magnum
- Primary use
- Hunting
- Status
- Wildcat
- Introduced
- 1960
- Type
- Rifle
- Origin
- United States
- Inventor
- Remington (approx: name-implied maker)
- Manufacturer
- Handloaded only (wildcat; no factory ammunition)
- Standard
- Wildcat
- Status
- Wildcat
- Availability
- Rare
- Case capacity
- 32.6 gr H₂O
- Twist (typical)
- 1:8
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 55,000 psi, SAAMI transducer
- Eff. range
- 300 yd
- Max range
- 3550 yd
- Recoil
- 4.4–4.5 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 6x47mm Remington, 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
- .222 Remington Magnum
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.
reloading data · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 6.17 | 0.243 | ✓ |
| Neck ⌀ | 6.76 | 0.266 | ✓ |
| Shoulder ⌀ | 9.07 | 0.357 | ✓ |
| Shoulder angle | 23° | — | ✓ |
| Base ⌀ | 9.60 | 0.378 | ✓ |
| Rim ⌀ | 9.53 | 0.375 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.14 | 0.045 | ✓ |
| Neck length | 7.09 | 0.279 | ≈ |
| Case length | 46.99 | 1.850 | ✓ |
| Overall length | 63.12 | 2.485 | ✓ |
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 Remington 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
The 6x47mm Remington was based on the .222 Remington Magnum case.
FAQs
- What twist rate does 6x47mm Remington use?
- 6x47mm Remington typically uses a 1:8 twist rate.
- What bullet diameter is 6x47mm Remington?
- 6x47mm Remington uses a 0.243″ (6.172 mm) diameter bullet.
- Is 6x47mm Remington still in production?
- 6x47mm Remington is wildcat; typical availability is rare.
- What is 6x47mm Remington used for?
- 6x47mm Remington is primarily used for hunting.
- What is 6x47mm Remington based on?
- 6x47mm Remington is derived from the .222 Remington Magnum case.
Sources & provenance
- Manufacturer Hornady — Hornady Obsolete Load Data — 6 X 47mm (rifle) · parent_cartridge, grain weights, velocity, bullet ⌀ archived
- Secondary Lee Precision — 6X47 (6MM-222 M) cartridge reference · parent_cartridge
- Secondary Handloader Magazine (Wolfe Publishing) — Wildcat Cartridges — 6x47mm · bullet ⌀, grain weights archived
- Secondary Wikipedia — 6×45mm (cartridge family context) · parent_cartridge
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
