Rifle · CIP

9.3x64mm Brenneke

9.3x64

Wilhelm Brenneke's powerful rimless 9.3mm magnum, delivering .375 H&H-class energy in a rimless case suited to standard-length bolt-actions.

Caliber
0.3661″ · 9.3 mm
Introduced
1927
Case
Rimless
Primary use
Hunting
Status
Active
Velocity2,560–2,750 fps
Energy3,374–4,800 ft·lb
Typical grains285 · 286 · 293 gr
Identity
Introduced
1927
Type
Rifle
Origin
Germany
Inventor
Wilhelm Brenneke
Manufacturer
RWS, Norma
Standard
CIP
Status
Active
Availability
Rare
Build
Case capacity
89 gr H₂O
Twist (typical)
1:14
Primer
Large Rifle Magnum
Case type
Rimless
Pressure & range
Max pressure
63,000 psi
Eff. range
350 yd
Max range
700 yd
Recoil
22–30 ft·lb

Ballistics

Representative trajectory · 100 yd zero0–800 yd
100 yd · zero0″−129″129″ drop @ 800 yd0400800Open in Ballistic Compare ↗
By real loads
2,360–2,789 fps · 20 loads
Parent case

Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).

Performance

Best for HuntingBuffalo Arms Custom293 gr · Soft Point · 2,625 fpsBuy now →

Buy links open 9.3x64mm Brenneke 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 ⌀9.300.366
Neck ⌀10.040.395
Shoulder ⌀12.050.474
Shoulder angle17.5°
Base ⌀12.880.507
Rim ⌀12.600.496
Belt ⌀n/a
Rim thickness1.300.051
Neck length8.720.343
Case length64.002.520
Overall length85.603.370

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. 9.3x64mm Brenneke is highlighted below.

Factory loads

In production — 20 active loads across 11 brands. Top 15 shown · see all 20 →.

BrandLoadGrainBulletFPSft·lbBC
NormaAfrican PH247Bonded Soft Point2,7894,265
RWSRWS Rifle247Monolithic Solid2,7894,265
Buffalo ArmsCustom293Soft Point2,6254,482
Sellier & BellotSP293Soft Point2,6254,482
NormaClassic293Soft Point2,6254,482
WolfFMJ293Soft Point2,6254,482
RWSClassic293Soft Point2,6254,482
PPUStandard293Soft Point2,6254,482
KynochClassic293Soft Point2,6254,482
ArmscorStandard293Soft Point2,6254,482
NormaAfrican PH285Woodleigh Solid2,6254,360
RWSRWS Rifle285TSX2,6254,360
NormaAfrican PH293Bonded Soft Point2,5504,230
RWSRWS Rifle293Banded Solid2,5504,230
NormaOryx Bonded SP286Oryx Bonded SP2,5264,051

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

Suitable powders

1 reloading powder listed for 9.3x64mm Brenneke, fastest to slowest. Cross-reference in the finder →

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.

Connected reference

History

Developed by Wilhelm Brenneke in 1927 as a powerful hunting cartridge for German bolt-action rifles without the need for a full magnum-length action. The 9.3x64 delivers energy comparable to a .375 H&H with 286-grain bullets, making it suitable for dangerous game. More common in Germany and Austria than in the Anglophone world; primarily loaded by RWS and Norma.

FAQs

What twist rate does 9.3x64mm Brenneke use?
9.3x64mm Brenneke typically uses a 1:14 twist rate.
What bullet diameter is 9.3x64mm Brenneke?
9.3x64mm Brenneke uses a 0.3661″ (9.3 mm) diameter bullet.
Is 9.3x64mm Brenneke still in production?
9.3x64mm Brenneke is active; typical availability is rare.
What is 9.3x64mm Brenneke used for?
9.3x64mm Brenneke is primarily used for hunting.
What are the best powders for 9.3x64mm Brenneke?
Reloading powders commonly listed for 9.3x64mm Brenneke include Reloader 19.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 20 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →