Lindcott Armory ReferenceGet the App
Jump toCartridge LibraryFactory LoadsPowder LibraryFirearm DatabaseBallistic Compare
ReferenceCartridge LibraryPowder LibraryFactory LoadsAmmo BrandsBullet CatalogBullet TypesBurn Rate ChartHeadstampsFirearm DatabaseDate Your GunToolsCartridge Family TreeBallistic CompareHead-to-HeadsAmmo Price HistoryField GuideOverviewHunting GuideMilitary TimelineGun HistoryBuying ChecklistStolen / Missing GunsAppsGet the App

Rifle · CIP

.375 H&H Magnum

.375 Holland & Holland.375 H&H

The most famous dangerous game cartridge in the world.

Caliber
0.375″ · 9.525 mm
Introduced
1912
Case
Belted
Primary use
Hunting
Status
Active
Velocity2,400–2,700 fps
Energy4,000–4,900 ft·lb
Typical grains235 · 270 · 300 gr
Identity
Introduced
1912
Type
Rifle
Origin
United Kingdom
Inventor
Holland & Holland
Manufacturer
Holland & Holland
Standard
CIP
Status
Active
Availability
Abundant
Build
Case capacity
95 gr H₂O
Twist (typical)
1:12
Primer
Large Rifle Magnum
Case type
Belted
Pressure & range
Max pressure
62,000 psi
Eff. range
400 yd
Max range
4000 yd
Recoil
40–55 ft·lb

Ballistics

Real trajectory computed from a representative load — Berger OTM Target 300 gr, 2,530 fps, BC 0.417 G7 · 100 yd zero.

overlay up to 2
RangeVelocityEnergyDrop (in)Drop (MOA)
0 yd25304262-1.5″—
100 yd242639190.0″0.0
200 yd23253599-4.4″-2.1
300 yd22263299-15.2″-4.9
400 yd21293018-33.1″-7.9
500 yd20342756-58.7″-11.2
600 yd19422511-92.6″-14.7

Point-mass G7/G1 drag model, standard atmosphere — within ~2% of reference solvers to 1000 yd; real barrels and conditions vary. Open in Ballistic Compare →

Performance

Best for HuntingBerger OTM Target300 gr · OTM · 2,530 fps · BC 0.417 G7Buy now →
Best for TargetSIG Sauer Match Elite235 gr · OTM BTHP · 2,900 fpsBuy now →

Buy links open .375 H&H 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.

CIP TDCC · verified
Measuremmin✓
Bullet ⌀9.530.375✓
Neck ⌀10.210.402✓
Shoulder ⌀11.370.448✓
Shoulder angle15°—✓
Base ⌀13.030.513✓
Rim ⌀13.510.532✓
Belt ⌀13.560.534✓
Rim thickness1.270.050✓
Neck length8.940.352≈
Case length72.392.850✓
Overall length91.443.600✓

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. .375 H&H Magnum is highlighted below.

Factory loads

In production — 386 active loads across 38 brands. Top 15 shown · see all 391 →.

BrandLoadGrainBulletFPSft·lbBC
HornadyPrecision Hunter ELD-X270ELD-X2,8704,9370.320 G7
BarnesVOR-TX TSX BT270TSX BT2,8404,8350.416 G1
BarnesVOR-TX270TTSX BT2,6904,3370.416 G1
NoslerSafari270Partition2,6904,3370.459 G1
BergerOTM Target300OTM2,5304,2630.417 G7
SIG SauerMatch Elite235OTM BTHP2,9004,388—
Cutting Edge BulletsSafari235Raptor HP2,9004,388—
FederalAmerican Eagle235SP2,9004,388—
FederalGold Medal235BTHP2,9004,388—
FederalPower-Shok235SP2,9004,388—
FederalFusion235Fusion Bonded2,9004,388—
FederalLE Tactical235BTHP2,9004,388—
FederalVital-Shok235Trophy Bonded2,9004,388—
WinchesterUSA White Box235SP2,9004,388—
WinchesterSuper-X235SP2,9004,388—

Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.

Suitable powders

10 reloading powders listed for .375 H&H Magnum, fastest to slowest. Cross-reference in the finder →

Norma MRPMRP2Tubal 7000S365N165N170IMR 5010LRTIMR 8133N105
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.

Firearms chambered in .375 H&H Magnum

12 models in the database chamber .375 H&H Magnum. Browse all →

CZ-USA 600 Lux .375 H&H MagRuger Explore .416 Rigby 23-inchCZ-USA CZ 600 Safari .375 H&H Mag 23.6-inchSako 90 Adventure .300 Win Mag 24-inchBergara B-14 Wilderness .375 H&H MagSauer & Sohn 404 Synchro XT .308 WinChristensen Arms Mesa 338 Win MagSako 90 Adventure .375 H&H MagSavage Arms 110 Storm 375 H&H MagnumSavage Arms 110 BEAR Hunter .375 H&H 23-inchBergara Bergara B-14 Wilderness .300 Win Mag 24-inchJohn Rigby & Co Lightweight Bolt 375 H&H

Lineage

Immediate parent
Root — no documented parent
Direct descendants (16 · 31 total)
.416 Hoffman.300 Winchester Magnum7mm Remington Magnum.300 H&H Magnum.257 Weatherby Magnum.338 Winchester Magnum.340 Weatherby Magnum.350 Remington Magnum8mm Remington Magnum.458 Winchester Magnum.416 Remington Magnum.376 Steyr.264 Winchester Magnum.375 Weatherby Magnum.458 Lott
Family TreeOpen .375 H&H Magnum in the interactive cartridge family tree↗

Connected reference

Loads391 factory loads for .375 H&H Magnum↗Reloading10 suitable powders — cross-reference↗FirearmsFirearms in .375 H&H Magnum↗ToolCompare ballistics↗

History

Introduced by London gunmaker Holland & Holland in 1912. Quickly became the standard dangerous game cartridge. Used by virtually every famous African hunter. Its belted case design became the template for most magnum cartridges. Required by law in many African jurisdictions for hunting dangerous game. Over 100 years later, still the gold standard.

FAQs

What twist rate does .375 H&H Magnum use?
.375 H&H Magnum typically uses a 1:12 twist rate.
What bullet diameter is .375 H&H Magnum?
.375 H&H Magnum uses a 0.375″ (9.525 mm) diameter bullet.
Is .375 H&H Magnum still in production?
.375 H&H Magnum is active; typical availability is abundant.
What is .375 H&H Magnum used for?
.375 H&H Magnum is primarily used for hunting.
What are the best powders for .375 H&H Magnum?
Reloading powders commonly listed for .375 H&H Magnum include Norma MRP, MRP2, Tubal 7000, S365, among 10 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 386 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →