What twist rate does .454 Casull use?

.454 Casull typically uses a 1:24 twist rate.

What bullet diameter is .454 Casull?

.454 Casull uses a 0.452″ (11.481 mm) diameter bullet.

Is .454 Casull still in production?

.454 Casull is active; typical availability is common.

What is .454 Casull used for?

.454 Casull is primarily used for hunting, big game.

What is .454 Casull based on?

.454 Casull is derived from the .45 Colt case.

What are the best powders for .454 Casull?

Reloading powders commonly listed for .454 Casull include CSP3, H4227, Winchester 296, H110, among 8 suitable options.

Revolver · SAAMI

.454 Casull

454 Casull.454

Dick Casull and Jack Fullmer's 1957 wildcat, standardized by SAAMI in 1997.

Caliber: 0.452″ · 11.481 mm
Introduced: 1958
Case: Rimless
Parent: .45 Colt
Primary use: Hunting, Big Game
Status: Active

Velocity1,400–1,900 fps

Energy1,040–1,800 ft·lb

Typical grains240 · 250 · 300 gr

Identity

Introduced: 1958
Type: Revolver
Origin: United States
Inventor: Dick Casull / Jack Fullmer
Manufacturer: Dick Casull / Freedom Arms
Standard: SAAMI
Status: Active
Availability: Common

Build

Case capacity: 42.5 gr H₂O
Twist (typical): 1:24
Primer: Small Rifle
Case type: Rimless

Pressure & range

Max pressure: 65,000 psi
Eff. range: 100 yd
Max range: 500 yd
Recoil: 35–55 ft·lb

Ballistics

Real trajectory computed from a representative load — Federal Premium 300 gr, 1,625 fps, BC 0.230 G1 · 25 yd zero.

Compare tooverlay up to 2

Range	Velocity	Energy	Drop (in)	Drop (MOA)
0 yd	1625	1758	-0.9″	—
25 yd	1581	1664	0.0″	0.0
50 yd	1537	1573	0.0″	0.1
75 yd	1493	1484	-0.9″	-1.1
100 yd	1449	1398	-2.7″	-2.6
125 yd	1405	1315	-5.6″	-4.3
150 yd	1361	1235	-9.6″	-6.1
175 yd	1318	1157	-14.8″	-8.1
200 yd	1275	1082	-21.2″	-10.1

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 HuntingFederal Premium300 gr · JHP · 1,625 fps · BC 0.230 G1Buy now →

Best for DefensePMC Starfire240 gr · JHP · 1,900 fpsBuy now →

Best for TargetSIG Sauer Elite Performance240 gr · FMJ · 1,900 fpsBuy now →

Buy links open .454 Casull 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 ⌀	11.48	0.452	✓
Neck ⌀	12.19	0.480	✓
Shoulder ⌀	n/a
Shoulder angle	n/a
Base ⌀	12.19	0.480	✓
Rim ⌀	13.01	0.512	✓
Belt ⌀	n/a
Rim thickness	1.45	0.057	~
Neck length	n/a
Case length	35.13	1.383	✓
Overall length	44.83	1.765	✓

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. .454 Casull is highlighted below.

Factory loads

In production — 189 active loads across 38 brands. Top 15 shown · see all 189 →.

Brand	Load	Grain	Bullet	FPS	ft·lb	BC
Federal	Premium	300	JHP	1,625	1,759	0.230 G1
Underwood Ammo	Xtreme Penetrator	240	XP	1,900	1,923	—
Buffalo Bore	JHP	250	JHP	1,900	2,004	—
Buffalo Bore	Anti-Personnel JHP	250	JHP	1,900	2,004	—
PMC	Starfire	240	JHP	1,900	1,923	—
CorBon	HP	240	JHP	1,900	1,923	—
Cor-Bon	JHP	250	JHP	1,900	2,004	—
Hornady	Custom XTP JHP	240	XTP JHP	1,900	1,923	—
SIG Sauer	Elite Performance	240	FMJ	1,900	1,923	—
SIG Sauer	V-Crown	240	V-Crown JHP	1,900	1,923	—
SIG Sauer	HT	240	HT JHP	1,900	1,923	—
SIG Sauer	M17 Competition	240	FMJ	1,900	1,923	—
Hornady	XTP	240	XTP	1,900	1,923	—
Barnes	XPB	250	XPB	1,900	2,004	—
Federal	American Eagle	240	JHP	1,900	1,923	—

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

Suitable powders

8 reloading powders listed for .454 Casull, fastest to slowest. Cross-reference in the finder →

CSP3 H4227 Winchester 296 H110 No. 9 Lil'Gun N360 IMR 4227

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 .454 Casull

12 models in the database chamber .454 Casull. Browse all →

Taurus Raging Hunter .460 S&W MagnumTaurus Raging Hunter .460 S&W 8.375-inchTaurus Raging Hunter .454 Casull 6.75-InchTaurus Taurus Raging Hunter .460 S&W 10.5-inchTaurus Raging Hunter .454 Casull 5.125-inchTaurus Taurus Raging Hunter .454 Casull 8.4-inchTaurus Raging Hunter .454Ruger Super Redhawk 10mmBig Horn Armory Model 89 Spike Driver 454 CasullRuger Redhawk .454 Casull 5.5-inchBig Horn Armory Model 90Rossi USA R92 .454 Casull 16-inch

Lineage

Immediate parent

.45 Colt

Direct descendants (1)

.460 S&W Magnum

Family TreeOpen .454 Casull in the interactive cartridge family tree↗

Connected reference

Loads189 factory loads for .454 Casull↗Reloading8 suitable powders — cross-reference↗FirearmsFirearms in .454 Casull↗ToolCompare ballistics↗

History

Developed by Dick Casull and Jack Fullmer starting in 1957. Operated at extreme pressures requiring special 5-shot cylinders. Freedom Arms commercialized it in 1983. SAAMI standardized it in 1990.

FAQs

What twist rate does .454 Casull use?: .454 Casull typically uses a 1:24 twist rate.
What bullet diameter is .454 Casull?: .454 Casull uses a 0.452″ (11.481 mm) diameter bullet.
Is .454 Casull still in production?: .454 Casull is active; typical availability is common.
What is .454 Casull used for?: .454 Casull is primarily used for hunting, big game.
What is .454 Casull based on?: .454 Casull is derived from the .45 Colt case.
What are the best powders for .454 Casull?: Reloading powders commonly listed for .454 Casull include CSP3, H4227, Winchester 296, H110, among 8 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 189 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →