Load data for .280 Ackley Improved + 156gr Norma ORYX

524 suitable loads across 88 powder(s) for cartridge .280 Ackley Improved with 156gr Norma ORYX bullet.

The most recommended powders for this combination are Alliant Reloder-26, Bofors RP5 and Alliant Reloder-17.

Based on SAAMI, the max. allowed case length is 2.525 in / 64.14 mm, the max. cartridge length is 3.330 in / 84.58 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.

Load Specifications

ImperialMetric

Bullet:.284 | 156gr | ORYX

Cartridge:.280 Ackley Improved load data

Case Length (L3):2.540" | 64.5 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.390" | 9.9 mm

Case Capacity:74 gow | 4.80 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (SAAMI):65,000 psi | 4,482 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:13.5

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Community Loads for .280 Ackley Improved + 156gr Norma ORYX

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

69.0 gr	3.330"	24.0"	3054 fps	•••
69.2 gr	3.330"	24.0"	3054 fps	•••

66.0 gr	3.330"	24.0"	3051 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.