Load Specifications
Load data in caliber .28 Nosler with .284 | 175gr | Speer Grand Slam bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 56,159 psi | 86% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 55,056 psi | 85% | 2887 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 86% | 57,435 psi | 88% | 2867 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 55,811 psi | 86% | 2884 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 58,044 psi | 89% | 2917 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,288 psi | 84% | 2969 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,768 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,725 psi | 89% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 57,014 psi | 88% | 2858 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,260 psi | 87% | 2881 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,928 psi | 89% | 2838 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,073 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 54,853 psi | 84% | 2874 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,796 psi | 86% | 2949 fps | 98.1% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 51,256 psi | 79% | 2867 fps | 96.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,275 psi | 87% | 2844 fps | 98.3% |
| Bofors RP15 | <<locked>> | 90% | 55,506 psi | 85% | 2867 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,957 psi | 89% | 2930 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 56,260 psi | 87% | 2881 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 55,738 psi | 86% | 2881 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 58,668 psi | 90% | 2874 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,696 psi | 89% | 2861 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,725 psi | 89% | 2772 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,348 psi | 88% | 3002 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,739 psi | 58% | 1788 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 56,144 psi | 86% | 2789 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,797 psi | 87% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,448 psi | 85% | 2799 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 90% | 57,928 psi | 89% | 2923 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 52,098 psi | 80% | 2861 fps | 99.7% |
| Lovex S070 | <<locked>> | 82% | 58,305 psi | 90% | 2815 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,798 psi | 89% | 2805 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,319 psi | 88% | 2848 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 53,069 psi | 82% | 2884 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,275 psi | 87% | 2894 fps | 100% |
| Norma URP | <<locked>> | 82% | 58,363 psi | 90% | 2828 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,317 psi | 85% | 2890 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 57,305 psi | 88% | 2841 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,740 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,667 psi | 59% | 1831 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 58,305 psi | 90% | 2995 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,435 psi | 88% | 2959 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 58,001 psi | 89% | 2838 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 86% | 56,695 psi | 87% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 58,305 psi | 90% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,769 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,289 psi | 87% | 2844 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 55,666 psi | 86% | 2779 fps | 99.4% |
| Somchem S365 | <<locked>> | 82% | 56,217 psi | 86% | 2782 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 57,014 psi | 88% | 2818 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,884 psi | 88% | 2805 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,956 psi | 86% | 2828 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 86% | 56,304 psi | 87% | 2815 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,724 psi | 86% | 2894 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 92% | 56,623 psi | 87% | 2890 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 57,957 psi | 89% | 2959 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 96% | 55,201 psi | 85% | 2959 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 58,117 psi | 89% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,811 psi | 87% | 2818 fps | 100% |
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 3100 | <<locked>> | 80% | 43,018 psi | 66% | 2572 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 80% | 44,585 psi | 69% | 2697 fps | 97.3% |
| ADI AR 2209 | <<locked>> | 80% | 47,137 psi | 73% | 2700 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 42,264 psi | 65% | 2641 fps | 97.8% |
| ADI AR 2217 | <<locked>> | 82% | 33,750 psi | 52% | 2444 fps | 95.2% |
| ADI AR 2218 | <<locked>> | 96% | 47,050 psi | 72% | 2825 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 28,979 psi | 45% | 2356 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 54,056 psi | 83% | 2799 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,963 psi | 72% | 2690 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,018 psi | 66% | 2648 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,829 psi | 64% | 2589 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,230 psi | 56% | 2530 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,268 psi | 73% | 2753 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 44,773 psi | 69% | 2753 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 47,659 psi | 73% | 2802 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,584 psi | 67% | 2615 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 40,074 psi | 62% | 2585 fps | 98.2% |
| Bofors RP30 | <<locked>> | 80% | 33,692 psi | 52% | 2461 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 43,018 psi | 66% | 2648 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 34,214 psi | 53% | 2461 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 80% | 44,817 psi | 69% | 2641 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,077 psi | 68% | 2625 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,894 psi | 78% | 2677 fps | 100% |
| Hodgdon Retumbo | 65.2 gr | 80% | 35,375 psi | 54% | 2569 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,282 psi | 44% | 1594 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,765 psi | 81% | 2736 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 53,301 psi | 82% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,977 psi | 71% | 2635 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 80% | 41,089 psi | 63% | 2625 fps | 97.5% |
| IMR 8133 Enduron | <<locked>> | 88% | 34,592 psi | 53% | 2503 fps | 95.5% |
| Lovex S070 | <<locked>> | 80% | 54,795 psi | 84% | 2762 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 37,202 psi | 57% | 2454 fps | 99.3% |
| Norma 204 | <<locked>> | 80% | 53,534 psi | 82% | 2789 fps | 99.9% |
| Norma 217 | <<locked>> | 84% | 30,472 psi | 47% | 2415 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 45,600 psi | 70% | 2717 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 54,723 psi | 84% | 2776 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 41,147 psi | 63% | 2638 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 80% | 53,606 psi | 82% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,912 psi | 57% | 2516 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,167 psi | 45% | 1637 fps | 100% |
| ReloadSwiss RS 76 | 69.7 gr | 80% | 34,418 psi | 53% | 2539 fps | 98.5% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 39,436 psi | 61% | 2628 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 47,892 psi | 74% | 2671 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 46,586 psi | 72% | 2680 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 54,795 psi | 84% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 55,172 psi | 85% | 2717 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,238 psi | 71% | 2677 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 48,689 psi | 75% | 2664 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 52,649 psi | 81% | 2733 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,978 psi | 72% | 2657 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 41,060 psi | 63% | 2539 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 92% | 52,315 psi | 80% | 2769 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 46,340 psi | 71% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,310 psi | 70% | 2710 fps | 98% |
| Vihtavuori N565 | <<locked>> | 80% | 37,739 psi | 58% | 2533 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 40,683 psi | 63% | 2644 fps | 95.7% |
| Vihtavuori N570 | 77.8 gr | 92% | 47,819 psi | 74% | 2825 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,856 psi | 61% | 2644 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,308 psi | 67% | 2592 fps | 98.9% |
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 59 powders for .28 Nosler loaded with the .284 | 175gr | Speer Grand Slam. Hodgdon Retumbo delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,002 fps. ADI AR 2218 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .28 Nosler with the .284 | 175gr | Speer Grand Slam they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.