Cartridge comparison
7.21 Lazzeroni Firebird vs 7mm KM
7.21 Lazzeroni Firebird and 7mm KM are both in the reference; see the full spec comparison below.
Side by side
| 7.21 Lazzeroni Firebird | 7mm KM | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1996 | 1989 |
| Bullet diameter | 0.284″ | 0.2846″ |
| Case length | 2.81″ | 2.7244″ |
| Max pressure | 63,817 psi | 63,817 psi |
| Recoil | 30–42 ft·lb | 28.7–32.3 ft·lb |
| Effective range | 800 yd | 400 yd |
Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.
Case profiles, to scale
Drawn to the same scale, so the proportions are true. Physical size varies with your screen.
