Load data for 6.5-300 Weatherby Mag. + 129gr Hornady InterLock
295 suitable loads across 55 powder(s) for cartridge 6.5-300 Weatherby Mag. with 129gr Hornady InterLock bullet.
The most recommended powders for this combination are ADI AR 2218, Vihtavuori N570 and Hodgdon Retumbo.
Based on Wildcat, the max. allowed case length is 2.825 in / 71.76 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.
Based on Wildcat, the max. allowed case length is 2.825 in / 71.76 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 64,977 PSI / 4,480 bar.
Load Specifications
ImperialMetric
Bullet:.264 | 129gr | InterLock
Cartridge:6.5-300 Weatherby Mag. load data
Case Length (L3):2.825" | 71.8 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.466" | 11.8 mm
Case Capacity:99.5 gow | 6.45 cm³
Primer Size:Large Rifle Magnum (LRM)
Max. Pressure (Wildcat):64,977 psi | 4,480 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:10.5
Get PRO license to unlock all data and calculators