Load data for .280 Ackley Improved + 150gr Barnes TSX BT
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.

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 | 150gr | TSX BT
Cartridge:.280 Ackley Improved load data
Case Length (L3):2.540" | 64.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.651" | 16.5 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:1:10.0
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Community Loads for .280 Ackley Improved + 150gr Barnes TSX BT
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 47.0 gr | 3.230" | 24.0" | 2678 fps | ••• | |
| 51.2 gr | 3.230" | 24.0" | 2856 fps | ••• | |
| 50.0 gr | 3.230" | 24.0" | 2670 fps | ••• | |
| ••• | 3.230" | 24.0" | 2870 fps | ••• | |
| ••• | 3.230" | 24.0" | 2735 fps | ••• | |
| ••• | 3.230" | 24.0" | 2886 fps | ••• | |
| ••• | 3.230" | 24.0" | 2821 fps | ••• | |
| ••• | 3.230" | 24.0" | 3005 fps | ••• | |
| ••• | 3.230" | 24.0" | 2768 fps | ••• | |
| ••• | 3.250" | 24.0" | 2836 fps | ••• | |
| ••• | 3.250" | 24.0" | 2817 fps | ••• | |
| ••• | 3.230" | 24.0" | 2706 fps | ••• | |
| ••• | 3.230" | 24.0" | 2632 fps | ••• | |
| ••• | 3.230" | 24.0" | 2652 fps | ••• | |
| ••• | 3.230" | 24.0" | 2800 fps | ••• | |
| ••• | 3.180" | 24.0" | 2917 fps | ••• | |
| ••• | 3.230" | 24.0" | 2577 fps | ••• | |
| ••• | 3.230" | 24.0" | 2737 fps | ••• | |
| ••• | 3.250" | 24.0" | 2589 fps | ••• | |
| ••• | 3.250" | 24.0" | 2877 fps | ••• | |
| ••• | 3.250" | 24.0" | 2549 fps | ••• | |
| ••• | 3.230" | 24.0" | 2661 fps | ••• | |
| ••• | 3.250" | 24.0" | 2794 fps | ••• | |
| ••• | 3.230" | 24.0" | 2806 fps | ••• | |
| ••• | 3.230" | 24.0" | 2797 fps | ••• | |
| ••• | 3.230" | 24.0" | 2704 fps | ••• | |
| ••• | 3.250" | 24.0" | 2581 fps | ••• | |
| ••• | 3.230" | 24.0" | 2627 fps | ••• | |
| ••• | 3.230" | 24.0" | 2788 fps | ••• | |
| ••• | 3.250" | 24.0" | 2830 fps | ••• | |
| ••• | 3.230" | 24.0" | 2751 fps | ••• | |
| ••• | 3.230" | 24.0" | 2960 fps | ••• | |
| ••• | 3.230" | 24.0" | 2654 fps | ••• | |
| ••• | 3.230" | 24.0" | 2797 fps | ••• | |
| ••• | 3.230" | 24.0" | 2744 fps | ••• | |
| ••• | 3.230" | 24.0" | 2842 fps | ••• | |
| ••• | 3.230" | 24.0" | 2547 fps | ••• | |
| ••• | 3.230" | 24.0" | 2733 fps | ••• | |
| ••• | 3.230" | 24.0" | 2646 fps | ••• | |
| ••• | 3.230" | 24.0" | 2830 fps | ••• | |
| ••• | 3.230" | 24.0" | 2743 fps | ••• | |
| ••• | 3.230" | 24.0" | 2988 fps | ••• | |
| ••• | 3.230" | 24.0" | 3094 fps | ••• | |
| ••• | 3.230" | 24.0" | 2810 fps | ••• | |
| ••• | 3.250" | 24.0" | 2812 fps | ••• | |
| ••• | 3.230" | 24.0" | 3038 fps | ••• | |
| ••• | 3.230" | 24.0" | 2596 fps | ••• | |
| ••• | 3.230" | 24.0" | 2898 fps | ••• | |
| ••• | 3.230" | 24.0" | 2618 fps | ••• | |
| ••• | 3.230" | 24.0" | 2624 fps | ••• | |
| ••• | 3.230" | 24.0" | 2830 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.