Load data for 7.21 Firebird + 173gr Prvi Partizan FMJ BT
207 suitable loads across 37 powder(s) for cartridge 7.21 Firebird with 173gr Prvi Partizan FMJ BT bullet.
The most recommended powders for this combination are ADI AR 2218, Vihtavuori N570 and Ramshot LRT.
i
i
Load Specifications
ImperialMetric
Bullet:.285 | 173gr | FMJ BT
Cartridge:7.21 Firebird load data
Case Length (l3):2.800" | 71.1 mm
Cartridge Length (C.O.L.):•••
Seated Depth:0.554" | 14.1 mm
Case Capacity:121 gow | 7.84 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (C.I.P.)::66,717 psi | 4,600 bar
Barrel Length:26.0" | 660 mm
Min. Twist Rate:1:12.0
Get PRO license to unlock all data and calculators