.454 Casull
Introduced 1983Dick Casull, Duane Marsh, Jack FullmerCIP standard
Also known as 454 Casull: the same cartridge under different names, all of which find this page.
Dimensions and pressure
Generated from the schema, like every specification table on this site, so a figure recorded on this entry cannot be missing from the table.
Identity
- Designed by
- Dick Casull, Duane Marsh, Jack Fullmer
- Introduced
- 1983
- Production
- not recorded
- Standards body
- C.I.P.
- Case type
- Rimmed
- Case shape
- Straight
Dimensions
Pressure
- Maximum pressure
- 390 MPa56,565 psisource
- Pressure standard
- C.I.P.
SAAMI and C.I.P. measure pressure differently and their figures are not interchangeable, which is why the body is always named beside the figure.
Loads
Velocity is recorded per barrel length as published. A gun page interpolates between these points and never projects beyond them.
240 gr XTP Mag
Hornady
- Bullet mass
- 15.55 g240.0 grsource
240 gr as published on the manufacturer's product page, converted to grams (1 gr = 0.06479891 g).
- Cartridge mass
- not recorded
- Bullet type
- XTP Mag
- G1 BC
- not recorded
- G7 BC
- not recorded
| Barrel | Velocity |
|---|---|
| 190.5 mm7.500 in | 579.1 m/s1,900 fps |
300 gr XTP Mag
Hornady
- Bullet mass
- 19.44 g300.0 grsource
300 gr as published on the manufacturer's product page, converted to grams (1 gr = 0.06479891 g).
- Cartridge mass
- not recorded
- Bullet type
- XTP Mag
- G1 BC
- not recorded
- G7 BC
- not recorded
| Barrel | Velocity |
|---|---|
| 190.5 mm7.500 in | 502.9 m/s1,650 fps |
Chambered in
Computed from every entry that lists this cartridge. Nothing here is hand-maintained.
- Taurus Raging Bull
Taurus Armas
Gallery
Image credit
- Title
- File:Cartridge .454 Casull CC BY-SA 4.0 by Grasyl.jpg
- Author
- Grasyl(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:Cartridge_.454_Casull_CC_BY-SA_4.0_by_Grasyl.jpg
Image credit
- Title
- File:Cartridge comparison1.jpg
- Author
- jarmoore
- Licence
- Public domain
- Source
- https://commons.wikimedia.org/wiki/File:Cartridge_comparison1.jpg
Detail
The .454 Casull is a lengthened and strengthened .45 Colt, worked up as a wildcat in 1958 by Dick Casull, Duane Marsh and Jack Fullmer and announced by Guns & Ammo magazine in November 1959. It stayed a wildcat for more than two decades, until Freedom Arms brought a five-shot single-action revolver chambered for it to market in 1983; SAAMI published its first standard for the round in 1997.
The longer case keeps the .45 Colt’s bullet diameter, which sets the family relationship in one direction only: a .454 Casull chamber also accepts the shorter .45 Colt and .45 Schofield, while the Casull round will not enter a revolver built for either of them. It runs at rifle-level pressure and uses a small rifle primer rather than a pistol primer for that reason. Ruger chambered its Super Redhawk for the round in 1997 and Taurus its Raging Bull in 1998, and the cartridge has been used chiefly for hunting medium and large game, for metallic silhouette shooting and as a revolver carried for protection against bears. The .460 S&W Magnum of 2005 is in turn a lengthened .454 Casull.
Every dimension and the pressure ceiling on this page come from the C.I.P. datasheet for “454 Casull”. Both loads are Hornady factory ammunition, each with a muzzle velocity the maker states for a 7.5-inch barrel. No ballistic coefficient is recorded for either, so no trajectory beyond the muzzle can be computed for this cartridge.
References
- .454 Casull · 1363403309 · read 2026-09-24
- C.I.P. TDCC datasheet — 454 Casull · 2015-05-19 · read 2026-09-24
- 454 Casull 240 gr XTP Mag · read 2026-09-24
- 454 Casull 300 gr XTP Mag · read 2026-09-24
Last verified 2026-09-24 · review status: draft