Load data for 8 x 65 R + 220gr Sierra GameKing
485 suitable loads across 91 powder(s) for cartridge 8 x 65 R with 220gr Sierra GameKing bullet.
The most recommended powders for this combination are ReloadSwiss RS 70, Hodgdon Superformance and ReloadSwiss RS 60.
Based on C.I.P., the max. allowed case length is 2.547 in / 64.70 mm, the max. cartridge length is 3.386 in / 86.00 mm, and the max. allowed pressure is 56,565 PSI / 3,900 bar.
Based on C.I.P., the max. allowed case length is 2.547 in / 64.70 mm, the max. cartridge length is 3.386 in / 86.00 mm, and the max. allowed pressure is 56,565 PSI / 3,900 bar.
Load Specifications
ImperialMetric
Bullet:.323 | 220gr | GameKing
Cartridge:8 x 65 R load data
Case Length (L3):2.559" | 65.0 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.557" | 14.1 mm
Case Capacity:70 gow | 4.54 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (C.I.P.):56,565 psi | 3,900 bar
Barrel Length:25.6" | 650 mm
Min. Twist Rate:1:13.0
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