What twist rate does .375 CheyTac use?

.375 CheyTac typically uses a 1:10 twist rate.

What bullet diameter is .375 CheyTac?

.375 CheyTac uses a 0.3748″ (9.52 mm) diameter bullet.

Is .375 CheyTac still in production?

.375 CheyTac is active; typical availability is scarce.

What is .375 CheyTac used for?

.375 CheyTac is primarily used for target, military.

What is .375 CheyTac based on?

.375 CheyTac is derived from the .408 CheyTac case.

What are the best powders for .375 CheyTac?

Reloading powders commonly listed for .375 CheyTac include 24N41.

Rifle · Proprietary

.375 CheyTac

.375 CT9.5x77mm

Smaller sibling of .408 CheyTac.

Caliber: 0.3748″ · 9.52 mm
Introduced: 2002
Case: Rebated
Parent: .408 CheyTac
Primary use: Target, Military
Status: Active

Velocity2,900–3,100 fps

Energy7,000–8,500 ft·lb

Typical grains350 · 352 · 375 gr

Identity

Introduced: 2002
Type: Rifle
Origin: United States
Inventor: Dr. John Taylor / CheyTac
Manufacturer: CheyTac LLC
Standard: Proprietary
Status: Active
Availability: Scarce

Build

Case capacity: 245 gr H₂O
Twist (typical): 1:10
Primer: Large Rifle Magnum
Case type: Rebated

Pressure & range

Max pressure: 65,000 psi
Eff. range: 2300 yd
Max range: 6000 yd
Recoil: 35–48 ft·lb

Ballistics

Representative trajectory · 100 yd zero0–800 yd

Open in Ballistic Compare ↗

By real loads: 2,800–3,150 fps · 19 loads
Parent case: .408 CheyTac

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

Performance

Best for HuntingLehigh Defense Xtreme Penetrator352 gr · Solid Copper · 2,960 fpsBuy now →

Best for TargetHornady A-MAX 350gr350 gr · A-MAX · 3,150 fpsBuy now →

Buy links open .375 CheyTac 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

Measure	mm	in	✓
Bullet ⌀	9.52	0.375	✓
Neck ⌀	10.31	0.406	✓
Shoulder ⌀	15.22	0.599	✓
Shoulder angle	22°	—	✓
Base ⌀	16.18	0.637	✓
Rim ⌀	16.25	0.640	✓
Belt ⌀	n/a
Rim thickness	1.60	0.063	✓
Neck length	8.54	0.336	≈
Case length	76.91	3.028	✓
Overall length	113.40	4.465	~

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 CheyTac is highlighted below.

Factory loads

In production — 19 active loads across 14 brands. Top 15 shown · see all 19 →.

Brand	Load	Grain	Bullet	FPS	ft·lb	BC
Hornady	A-MAX 350gr	350	A-MAX	3,150	7,710	—
Applied Ballistics	Match Solid 350gr	350	Match Solid	3,150	7,710	—
CheyTac	EFMJ 350gr	350	FMJ	3,150	7,710	—
Lapua	FMJBT 350gr	350	FMJBT	3,150	7,710	—
Ammo Inc.	OTM 350gr	350	OTM	3,100	7,467	—
Berger	Hybrid OTM 375gr	375	Hybrid OTM	3,100	8,001	—
Graf	FMJ Standard	350	FMJ	3,000	6,993	—
Lapua	Scenar	350	Hollow Point BT	3,000	6,993	—
PPU	FMJ	350	FMJ	2,980	6,900	—
Hornady	A-MAX Match	350	A-MAX	2,970	6,854	—
CheyTac	FMJ Extreme Long Range	352	FMJ	2,970	6,893	—
Lehigh Defense	Xtreme Penetrator	352	Solid Copper	2,960	6,847	—
Black Hills	Match	350	Hollow Point BT	2,960	6,808	—
Sierra	MatchKing	352	Hollow Point BT	2,960	6,847	—
Lehigh Defense	Controlled Chaos	350	Controlled Chaos	2,900	6,535	—

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

Suitable powders

1 reloading powder listed for .375 CheyTac, fastest to slowest. Cross-reference in the finder →

24N41

Reloading costestimate cost per round vs factory

Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.

Powder $/lbCharge (gr)Bullet $/eaPrimer $/eaBrass reusesBrass $/ea

Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.

Firearms chambered in .375 CheyTac

12 models in the database chamber .375 CheyTac. Browse all →

Cadex Defence Tremor .375 CTCadex Defence CDX-40 ShadowAccuracy International AXSR 375 CheyTacCadex Defence CDX-40 Shadow .375 CheyTac 30-inchDesert Tech HTI .375 CheyTacDesert Tech HTICadex Defence Cadex Defence CDX-40 .375 CheyTac 29-inchBarrett Firearms Barrett MRAD .375 CheyTac 29-inchCheyTac M200A2CheyTac M310CheyTac M200 375 CheyTacCheyTac M200 Intervention 408 CheyTac

Lineage

Immediate parent

.408 CheyTac

Family TreeOpen .375 CheyTac in the interactive cartridge family tree↗

Connected reference

Loads19 factory loads for .375 CheyTac↗Reloading1 suitable powder — cross-reference↗FirearmsFirearms in .375 CheyTac↗ToolCompare ballistics↗

History

Developed by CheyTac in 2002 as a lighter-recoiling alternative to .408 CheyTac. Necking down .408 to .375 provided better barrel life and less recoil while maintaining extreme range capability. Less popular than .408 but used by some precision shooters who want less recoil. Provides ballistic performance between .338 Lapua and .408 CheyTac.

FAQs

What twist rate does .375 CheyTac use?: .375 CheyTac typically uses a 1:10 twist rate.
What bullet diameter is .375 CheyTac?: .375 CheyTac uses a 0.3748″ (9.52 mm) diameter bullet.
Is .375 CheyTac still in production?: .375 CheyTac is active; typical availability is scarce.
What is .375 CheyTac used for?: .375 CheyTac is primarily used for target, military.
What is .375 CheyTac based on?: .375 CheyTac is derived from the .408 CheyTac case.
What are the best powders for .375 CheyTac?: Reloading powders commonly listed for .375 CheyTac include 24N41.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 19 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →