Lindcott Armory Rifle · SAAMI
.222 Remington Magnum
Lengthened .222 Remington case offering greater powder capacity and velocity.
- Caliber
- 0.224″ · 5.69 mm
- Introduced
- 1958
- Case
- Rimless
- Parent
- .222 Remington
- Primary use
- Varmint, Target
- Status
- Active
- Introduced
- 1958
- Type
- Rifle
- Origin
- United States
- Inventor
- Remington
- Manufacturer
- Remington
- Standard
- SAAMI
- Status
- Active
- Availability
- Limited
- Case capacity
- 30.5 gr H₂O
- Twist (typical)
- 1:14
- Primer
- Small Rifle
- Case type
- Rimless
- Max pressure
- 54,000 psi
- Eff. range
- 300 yd
- Max range
- 600 yd
- Recoil
- 4.5–7 ft·lb
Ballistics
- By real loads
- 3,240–3,300 fps · 20 loads
- Parent case
- .222 Remington
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open .222 Remington Magnum ammunition at Rivertown Munitions.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
Wikipedia · secondary source| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.69 | 0.224 | · |
| Neck ⌀ | 6.43 | 0.253 | · |
| Shoulder ⌀ | 9.07 | 0.357 | · |
| Shoulder angle | 23° | — | · |
| Base ⌀ | 9.55 | 0.376 | · |
| Rim ⌀ | 9.60 | 0.378 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | — | — | |
| Neck length | 6.71 | 0.264 | ≈ |
| Case length | 46.99 | 1.850 | · |
| Overall length | 57.91 | 2.280 | · |
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. .222 Remington Magnum is highlighted below.
Factory loads
In production — 20 active loads across 15 brands. Top 15 shown · see all 22 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Barnes | Varmint Grenade | 53 | Varmint Grenade | 3,300 | 1,281 | — |
| Norma | V-MAX Varmint | 50 | V-MAX | 3,297 | 1,207 | — |
| Federal | Power-Shok SP | 55 | SP | 3,240 | 1,282 | — |
| Remington | Power-Lokt HP | 55 | HP | 3,240 | 1,282 | — |
| Sellier & Bellot | Sport | 55 | FMJ | 3,240 | 1,282 | — |
| Kynoch | Classic | 55 | Soft Point | 3,240 | 1,282 | — |
| Norma | Classic | 55 | Soft Point | 3,240 | 1,282 | — |
| Buffalo Arms | Custom | 55 | Soft Point | 3,240 | 1,282 | — |
| Remington | Premier | 55 | AccuTip-V | 3,240 | 1,282 | — |
| Armscor | Standard | 55 | Soft Point | 3,240 | 1,282 | — |
| Winchester | Super-X | 55 | PSP | 3,240 | 1,282 | — |
| Sako | Gamehead | 55 | SP | 3,240 | 1,282 | — |
| PPU | Standard | 55 | Soft Point | 3,240 | 1,282 | — |
| Hornady | Varmint Express | 55 | V-Max | 3,240 | 1,282 | — |
| RWS | Classic | 55 | Soft Point | 3,240 | 1,282 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
6 reloading powders listed for .222 Remington Magnum, 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
Introduced in 1958 as a longer, higher-capacity version of the successful .222 Remington. Competed directly in the US Army's SALVO project trials against what became the 5.56x45mm NATO. The military selected a slightly different case (which became 5.56 NATO) and the .222 Remington Magnum found its niche as a commercial varmint and benchrest cartridge. Factory ammunition is still produced but in limited quantities.
FAQs
- What twist rate does .222 Remington Magnum use?
- .222 Remington Magnum typically uses a 1:14 twist rate.
- What bullet diameter is .222 Remington Magnum?
- .222 Remington Magnum uses a 0.224″ (5.69 mm) diameter bullet.
- Is .222 Remington Magnum still in production?
- .222 Remington Magnum is active; typical availability is limited.
- What is .222 Remington Magnum used for?
- .222 Remington Magnum is primarily used for varmint, target.
- What is .222 Remington Magnum based on?
- .222 Remington Magnum is derived from the .222 Remington case.
- What are the best powders for .222 Remington Magnum?
- Reloading powders commonly listed for .222 Remington Magnum include N130, H322, Benchmark, Reloader 10x, among 6 suitable options.
Sources & provenance
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 →