Rifle · Obsolete / Non-standard
.30 Newton
Early American high-velocity, beltless magnum designed by Charles Newton..
- Caliber
- 0.308″ · 7.823 mm
- Introduced
- 1913
- Case
- Rimless
- Parent
- 11.2x72mm Schuler
- Primary use
- Hunting
- Status
- Obsolete
- Introduced
- 1913
- Type
- Rifle
- Origin
- United States
- Inventor
- Charles Newton
- Manufacturer
- Newton Arms
- Standard
- Obsolete / Non-standard
- Status
- Obsolete
- Availability
- Collector
- Primer
- Large Rifle Magnum
- Case type
- Rimless
- Eff. range
- 300 yd
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .30 Newton, 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
- 11.2x72mm Schuler
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 ⌀ | 7.82 | 0.308 | · |
| Neck ⌀ | 8.64 | 0.340 | · |
| Shoulder ⌀ | 12.47 | 0.491 | · |
| Shoulder angle | — | — | |
| Base ⌀ | 13.28 | 0.523 | · |
| Rim ⌀ | 13.34 | 0.525 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | — | — | |
| Neck length | — | — | |
| Case length | 64.01 | 2.520 | · |
| Overall length | 85.09 | 3.350 | · |
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. .30 Newton is highlighted below.
Missing a dimension for .30 Newton? 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
Dates to 1913 (originally the "30 Adolph Express"), built on the 11.2x72 Schuler case; the Newton "Model 1916" is the rifle, not the cartridge.
FAQs
- What bullet diameter is .30 Newton?
- .30 Newton uses a 0.308″ (7.823 mm) diameter bullet.
- Is .30 Newton still in production?
- .30 Newton is obsolete; typical availability is collector.
- What is .30 Newton used for?
- .30 Newton is primarily used for hunting.
- What is .30 Newton based on?
- .30 Newton is derived from the 11.2x72mm Schuler case.
Sources & provenance
- Reference Gun Digest Books (Frank C. Barnes) — Cartridges of the World (.30 Newton entry) · bullet ⌀, velocity, grain weights
- Secondary MeatEater — The Best High-Velocity Cartridges You've Never Heard Of · year, velocity, grain weights 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 →