Load Specifications
Load data in caliber .280 Rem. with .284 | 135gr | Atomic 29 HP bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 52,214 psi | 89% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 51,068 psi | 87% | 2812 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 52,547 psi | 89% | 2874 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 51,213 psi | 87% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 50,705 psi | 86% | 2930 fps | 99% |
| ADI AR 2206H | <<locked>> | 84% | 51,430 psi | 88% | 2881 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 90% | 52,547 psi | 89% | 2884 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 50,444 psi | 86% | 2831 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 51,053 psi | 87% | 2815 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 50,937 psi | 87% | 2995 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 52,069 psi | 89% | 2894 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 52,678 psi | 90% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 49,676 psi | 85% | 2871 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 52,156 psi | 89% | 2989 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,055 psi | 90% | 3025 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,697 psi | 68% | 2766 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,556 psi | 76% | 2933 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 51,140 psi | 87% | 2894 fps | 99.2% |
| Bofors RP3 | <<locked>> | 90% | 53,011 psi | 90% | 2923 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 49,908 psi | 85% | 2831 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 52,141 psi | 89% | 2818 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 49,690 psi | 85% | 2861 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 50,488 psi | 86% | 2874 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 94% | 50,285 psi | 86% | 2927 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 51,909 psi | 88% | 2890 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,692 psi | 88% | 2917 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 51,343 psi | 87% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 50,531 psi | 86% | 2953 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,505 psi | 60% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 49,980 psi | 85% | 2844 fps | 99.8% |
| IMR 3031 | <<locked>> | 84% | 52,025 psi | 89% | 2884 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,938 psi | 88% | 2864 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,909 psi | 88% | 2841 fps | 96.9% |
| IMR 4350 | <<locked>> | 96% | 50,169 psi | 85% | 2858 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,924 psi | 88% | 2871 fps | 96.8% |
| IMR 4831 | <<locked>> | 98% | 51,503 psi | 88% | 2927 fps | 99.2% |
| IMR 4895 | <<locked>> | 86% | 50,894 psi | 87% | 2900 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 82% | 50,444 psi | 86% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 51,213 psi | 87% | 2861 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 51,256 psi | 87% | 2815 fps | 99.7% |
| Lovex S062 | <<locked>> | 88% | 51,793 psi | 88% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 51,358 psi | 87% | 2864 fps | 98.1% |
| Lovex S070 | <<locked>> | 96% | 52,011 psi | 89% | 2894 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 50,328 psi | 86% | 2828 fps | 100% |
| Norma 202 | <<locked>> | 84% | 50,894 psi | 87% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 88% | 52,417 psi | 89% | 2917 fps | 99.8% |
| Norma URP | <<locked>> | 96% | 49,893 psi | 85% | 2917 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 88% | 52,562 psi | 89% | 2936 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 52,228 psi | 89% | 2966 fps | 97.9% |
| Ramshot TAC | <<locked>> | 82% | 50,676 psi | 86% | 2844 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,111 psi | 85% | 2864 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 61% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,792 psi | 86% | 2854 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 49,937 psi | 85% | 2933 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,982 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 50,531 psi | 86% | 2953 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,111 psi | 85% | 2972 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 82% | 51,590 psi | 88% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 50,850 psi | 87% | 2828 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 52,823 psi | 90% | 2913 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 49,908 psi | 85% | 2831 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 51,358 psi | 87% | 2864 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 51,213 psi | 87% | 2861 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 51,793 psi | 88% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 52,011 psi | 89% | 2894 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 51,155 psi | 87% | 2920 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 52,388 psi | 89% | 2877 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,082 psi | 85% | 2854 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 51,808 psi | 88% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 52,156 psi | 89% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 51,300 psi | 87% | 2812 fps | 96.8% |
| Somchem S335 | <<locked>> | 84% | 51,227 psi | 87% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 52,127 psi | 89% | 2871 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 50,125 psi | 85% | 2861 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,242 psi | 87% | 2976 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 52,040 psi | 89% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 50,734 psi | 86% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 51,242 psi | 87% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 51,227 psi | 87% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,344 psi | 89% | 2917 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 82% | 50,778 psi | 86% | 2831 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,794 psi | 90% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 51,590 psi | 88% | 2920 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,540 psi | 74% | 2848 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,736 psi | 90% | 2897 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 50,821 psi | 87% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 50,285 psi | 86% | 2927 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,549 psi | 61% | 2759 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,982 psi | 90% | 2910 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 49,255 psi | 84% | 2743 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,119 psi | 72% | 2667 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,008 psi | 83% | 2818 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 39,842 psi | 68% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,708 psi | 61% | 2631 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 45,339 psi | 77% | 2772 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 38,551 psi | 66% | 2615 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,398 psi | 81% | 2779 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 47,993 psi | 82% | 2769 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,278 psi | 70% | 2799 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,890 psi | 78% | 2785 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,290 psi | 65% | 2641 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,060 psi | 70% | 2703 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,882 psi | 61% | 2644 fps | 95.6% |
| Alliant Reloder-17 | 46.6 gr | 80% | 33,112 psi | 56% | 2602 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,096 psi | 53% | 2543 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,653 psi | 66% | 2799 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,643 psi | 76% | 2776 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 37,971 psi | 65% | 2641 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,847 psi | 80% | 2776 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,037 psi | 83% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,427 psi | 79% | 2802 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 38,812 psi | 66% | 2648 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 90% | 43,918 psi | 75% | 2805 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 45,803 psi | 78% | 2785 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,908 psi | 53% | 2484 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,858 psi | 71% | 2753 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 46,862 psi | 80% | 2881 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,527 psi | 45% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,019 psi | 75% | 2736 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,484 psi | 77% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,495 psi | 69% | 2651 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,861 psi | 78% | 2730 fps | 95.5% |
| IMR 4350 | <<locked>> | 94% | 47,137 psi | 80% | 2802 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,905 psi | 78% | 2759 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 34,606 psi | 59% | 2589 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,076 psi | 72% | 2736 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 47,398 psi | 81% | 2779 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 44,744 psi | 76% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,281 psi | 77% | 2707 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 40,466 psi | 69% | 2657 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 40,089 psi | 68% | 2648 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 43,076 psi | 73% | 2730 fps | 95% |
| Norma 201 | <<locked>> | 80% | 44,570 psi | 76% | 2726 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 44,831 psi | 76% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,437 psi | 69% | 2694 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 35,969 psi | 61% | 2635 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 40,016 psi | 68% | 2703 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 42,728 psi | 73% | 2785 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 47,427 psi | 81% | 2785 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,079 psi | 80% | 2808 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,905 psi | 46% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,945 psi | 71% | 2687 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,410 psi | 74% | 2812 fps | 98.3% |
| ReloadSwiss RS 60 | 46.6 gr | 80% | 35,215 psi | 60% | 2671 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,491 psi | 60% | 2648 fps | 95% |
| ReloadSwiss RS 70 | 52 gr | 88% | 38,043 psi | 65% | 2713 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 48,472 psi | 83% | 2769 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,264 psi | 72% | 2674 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 35,650 psi | 61% | 2582 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 46,847 psi | 80% | 2776 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,089 psi | 68% | 2648 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,744 psi | 76% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,466 psi | 69% | 2657 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 90% | 43,076 psi | 73% | 2730 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,753 psi | 63% | 2635 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,861 psi | 78% | 2762 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,976 psi | 75% | 2743 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,730 psi | 78% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,101 psi | 65% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,092 psi | 77% | 2700 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 45,513 psi | 77% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,469 psi | 77% | 2756 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 36,637 psi | 62% | 2595 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 28,355 psi | 48% | 2470 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 80% | 46,064 psi | 78% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,843 psi | 71% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,337 psi | 72% | 2664 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,679 psi | 59% | 2526 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 35,186 psi | 60% | 2582 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 47,601 psi | 81% | 2779 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,901 psi | 70% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 37,159 psi | 63% | 2641 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 33,489 psi | 57% | 2621 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,821 psi | 52% | 2444 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 47,384 psi | 81% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,918 psi | 75% | 2805 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 31,227 psi | 53% | 2625 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,337 psi | 74% | 2743 fps | 99.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 109 powders for .280 Rem. loaded with the .284 | 135gr | Atomic 29 HP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,028 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .280 Rem. with the .284 | 135gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.