Rifle · CIP · Not SAAMI standardized · CIP standardizedObsolete
.30 Super Flanged H&H
.30 Super Flanged H&H is a rimmed bottlenecked rifle cartridge of United Kingdom origin.
- Caliber
- 0.3079″ · 7.82 mm
- Introduced
- 1925
- Case
- Rimmed
- Parent
- .300 H&H Magnum
- Primary use
- Hunting
- Status
- Discontinued
- Obsolete
- Obsolete
- Introduced
- 1925
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- Holland & Holland
- Manufacturer
- Holland & Holland
- Standard
- CIP · Not SAAMI standardized · CIP standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Discontinued
- Availability
- Rare
- Case capacity
- 90.4 gr H₂O
- Twist (typical)
- 1:10.0
- Primer
- Large Rifle Magnum
- Case type
- Rimmed
- Max pressure
- 46,412 psi, CIP transducer
- Eff. range
- 400 yd
- Max range
- 2000 yd
- Recoil
- 24.2–28.6 ft·lb
Introduced by Holland & Holland
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .30 Super Flanged H&H, 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
- .300 H&H 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.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.82 | 0.308 | ✓ |
| Neck ⌀ | 8.59 | 0.338 | ✓ |
| Shoulder ⌀ | 11.43 | 0.450 | ✓ |
| Shoulder angle | 8.5° | — | ≈ |
| Base ⌀ | 13.13 | 0.517 | ✓ |
| Rim ⌀ | 14.53 | 0.572 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.52 | 0.060 | ✓ |
| Neck length | 9.53 | 0.375 | ≈ |
| Case length | 74.68 | 2.940 | ✓ |
| Overall length | 93.73 | 3.690 | ✓ |
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 Super Flanged H&H 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
Developed by Holland & Holland, derived from the .300 H&H Magnum.
FAQs
- What twist rate does .30 Super Flanged H&H use?
- .30 Super Flanged H&H typically uses a 1:10.0 twist rate.
- What bullet diameter is .30 Super Flanged H&H?
- .30 Super Flanged H&H uses a 0.3079″ (7.82 mm) diameter bullet.
- Is .30 Super Flanged H&H still in production?
- .30 Super Flanged H&H is discontinued; typical availability is rare.
- What is .30 Super Flanged H&H used for?
- .30 Super Flanged H&H is primarily used for hunting.
- What is .30 Super Flanged H&H based on?
- .30 Super Flanged H&H is derived from the .300 H&H Magnum 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 →
