The .454 Casull cartridge has an overall length of 1.77 inches (45 mm) and uses a 0.452-inch (11.48 mm) bullet, while its case measures 1.383 inches (35.1 mm) in length with a 0.512-inch (13.0 mm) rim diameter. Despite its “.454” designation, modern standardized cartridges use .452-inch bullets.
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Cartridge Dimensions
- Overall length (OAL): 1.77 in (45 mm)
- Bullet diameter: 0.4520 in (11.48 mm)
- Bore diameter: 0.4420 in (11.23 mm)
- Groove diameter: 0.4520 in (11.48 mm)
- Maximum SAAMI pressure: 65,000 psi (450 MPa)
Case Dimensions
- Case length: 1.383 in (35.1 mm)
- Case capacity: 45.5 gr H₂O (2.95 cm³)
- Neck diameter: 0.480 in (12.2 mm)
- Base diameter: 0.480 in (12.2 mm)
- Rim diameter: 0.512 in (13.0 mm)
- Rim thickness: 0.057 in (1.4 mm)
