Centerfire Rifle · SAAMI · SAAMI (not in current Z299) · CIP standardizedObsolete
6.5mm Remington Magnum
Introduced by Remington in 1966 for the compact Model 600 and 660 bolt-action carbines, this was the first commercially produced belted magnum designed around a short action — a concept that wouldn't see mainstream adoption until the WSM and RSAUM cartridges arrived 35 years later.
- Caliber
- 0.264″ · 6.706 mm
- Introduced
- 1966
- Case
- Belted
- Parent
- .350 Remington Magnum
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1966
- Type
- Centerfire Rifle
- Origin
- United States
- Inventor
- Remington Arms
- Manufacturer
- Remington Arms
- Standard
- SAAMI · SAAMI (not in current Z299) · CIP standardized
- SAAMI
- SAAMI (not in current Z299)
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Collector
- Case capacity
- 68.2 gr H₂O
- Twist (typical)
- 1:9
- Primer
- Large Rifle Magnum
- Case type
- Belted
- Max pressure
- 63,092 psi, CIP transducer
- Eff. range
- 400 yd
- Max range
- 4800 yd
- Recoil
- 15.6–16.7 ft·lb
Introduced by Remington Arms
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for 6.5mm Remington Magnum, 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
- .350 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.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 6.71 | 0.264 | ✓ |
| Neck ⌀ | 7.57 | 0.298 | ✓ |
| Shoulder ⌀ | 12.60 | 0.496 | ✓ |
| Shoulder angle | 25.1° | — | ✓ |
| Base ⌀ | 13.03 | 0.513 | ~ |
| Rim ⌀ | 13.51 | 0.532 | ✓ |
| Belt ⌀ | 13.51 | 0.532 | ✓ |
| Rim thickness | 1.27 | 0.050 | ✓ |
| Neck length | 6.63 | 0.261 | ≈ |
| Case length | 55.12 | 2.170 | ✓ |
| 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. 6.5mm Remington Magnum 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 6.5mm Remington Magnum was introduced in 1966 by Remington Arms, based on the .350 Remington Magnum case (United States).
FAQs
- What twist rate does 6.5mm Remington Magnum use?
- 6.5mm Remington Magnum typically uses a 1:9 twist rate.
- What bullet diameter is 6.5mm Remington Magnum?
- 6.5mm Remington Magnum uses a 0.264″ (6.706 mm) diameter bullet.
- Is 6.5mm Remington Magnum still in production?
- 6.5mm Remington Magnum is discontinued; typical availability is collector.
- What is 6.5mm Remington Magnum used for?
- 6.5mm Remington Magnum is primarily used for hunting.
- What is 6.5mm Remington Magnum based on?
- 6.5mm Remington Magnum is derived from the .350 Remington Magnum case.
Sources & provenance
- Standard SAAMI (Sporting Arms and Ammunition Manufacturers' Institute) — ANSI/SAAMI Z299.4 – 2015 (Centerfire Rifle) — Velocity & Pressure / Cartridge & Chamber Drawings · velocity, bullet ⌀ archived
- Reference DBI Books / Krause (Frank C. Barnes) — Cartridges of the World · velocity, year, grain weights
- Secondary Wikipedia (pointer) — 6.5mm Remington Magnum · year, bullet ⌀, velocity archived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
