Rifle · CIP
.45-70 Elko Magnum
.45-70 Elko Magnum is a rimmed straight-walled rifle cartridge of Belgium origin.
- Caliber
- 0.4591″ · 11.66 mm
- Introduced
- 1992
- Case
- Rimmed
- Parent
- .45-70 Government
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1992
- Type
- Rifle
- Origin
- Belgium
- Inventor
- Elko
- Manufacturer
- Elko
- Standard
- CIP
- Status
- Active
- Availability
- Limited
- Case capacity
- 98.5 gr H₂O
- Twist (typical)
- 1:20.0
- Primer
- Large Rifle Magnum
- Case type
- Rimmed
- Max pressure
- 42,786 psi, CIP transducer
- Eff. range
- 150 yd
- Max range
- 750 yd
- Recoil
- 27.7–29.4 ft·lb
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .45-70 Elko 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
- .45-70 Government
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 · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 11.66 | 0.459 | ✓ |
| Neck ⌀ | 12.22 | 0.481 | |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 12.88 | 0.507 | ✓ |
| Rim ⌀ | 15.44 | 0.608 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.78 | 0.070 | ✓ |
| Neck length | n/a | ||
| Case length | 66.00 | 2.598 | ✓ |
| Overall length | 87.30 | 3.437 | ✓ |
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. .45-70 Elko Magnum is highlighted below.
Missing a dimension for .45-70 Elko Magnum? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
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
Developed by Elko, derived from the .45-70 Government.
FAQs
- What twist rate does .45-70 Elko Magnum use?
- .45-70 Elko Magnum typically uses a 1:20.0 twist rate.
- What bullet diameter is .45-70 Elko Magnum?
- .45-70 Elko Magnum uses a 0.4591″ (11.66 mm) diameter bullet.
- Is .45-70 Elko Magnum still in production?
- .45-70 Elko Magnum is active; typical availability is limited.
- What is .45-70 Elko Magnum used for?
- .45-70 Elko Magnum is primarily used for hunting.
- What is .45-70 Elko Magnum based on?
- .45-70 Elko Magnum is derived from the .45-70 Government 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 →
