Load data for 5.56 x 45 NATO + 63gr Sierra VarmintKing
313 suitable loads across 59 powder(s) for cartridge 5.56 x 45 NATO with 63gr Sierra VarmintKing bullet.
The most recommended powders for this combination are Hodgdon H322, ADI AR 2219 and SNPE Vectan SP 10.
Based on NATO EPVAT, the max. allowed case length is 1.760 in / 44.70 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Based on NATO EPVAT, the max. allowed case length is 1.760 in / 44.70 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.
Load Specifications
ImperialMetric
Bullet:.224 | 63gr | VarmintKing
Cartridge:5.56 x 45 NATO load data
Case Length (L3):1.759" | 44.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.290" | 7.4 mm
Case Capacity:30 gow | 1.94 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (NATO EPVAT):62,366 psi | 4,300 bar
Barrel Length:20.0" | 508 mm
Min. Twist Rate:1:12.0
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