Load Specifications
Load data in caliber .28 Nosler with .284 | 170gr | Sierra RN Prohunter bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N570 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% | 55,376 psi | 85% | 2812 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 58,030 psi | 89% | 2972 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 86% | 56,753 psi | 87% | 2897 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,798 psi | 90% | 2969 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 98% | 57,276 psi | 88% | 2946 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,447 psi | 82% | 2986 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,651 psi | 86% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,898 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,144 psi | 86% | 2884 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 55,477 psi | 85% | 2907 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,145 psi | 88% | 2867 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,334 psi | 88% | 2940 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,899 psi | 89% | 2956 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,839 psi | 84% | 2969 fps | 97.7% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,256 psi | 77% | 2884 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,535 psi | 85% | 2871 fps | 97.9% |
| Bofors RP15 | <<locked>> | 92% | 58,291 psi | 90% | 2949 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,942 psi | 88% | 2953 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 55,477 psi | 85% | 2907 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 54,810 psi | 84% | 2907 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 57,914 psi | 89% | 2900 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,971 psi | 88% | 2887 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,159 psi | 88% | 2805 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,304 psi | 87% | 3025 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,419 psi | 85% | 2815 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,014 psi | 86% | 2818 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,349 psi | 90% | 2881 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 90% | 57,058 psi | 88% | 2949 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,097 psi | 79% | 2881 fps | 99.5% |
| Lovex S070 | <<locked>> | 82% | 57,754 psi | 89% | 2848 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,971 psi | 88% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,695 psi | 87% | 2877 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,967 psi | 80% | 2904 fps | 100% |
| Norma MRP | <<locked>> | 86% | 55,434 psi | 85% | 2920 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,754 psi | 89% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,537 psi | 90% | 2976 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,637 psi | 87% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,695 psi | 87% | 2904 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,740 psi | 60% | 1860 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,363 psi | 90% | 2930 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,000 psi | 88% | 3015 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,434 psi | 87% | 2982 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 86% | 57,363 psi | 88% | 2867 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 55,985 psi | 86% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,754 psi | 89% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,044 psi | 89% | 2799 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,593 psi | 86% | 2874 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,639 psi | 90% | 2861 fps | 99.6% |
| Somchem S365 | <<locked>> | 82% | 55,347 psi | 85% | 2812 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,304 psi | 87% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,130 psi | 86% | 2831 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,100 psi | 85% | 2851 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 82% | 58,305 psi | 90% | 2854 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 55,593 psi | 86% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 54,926 psi | 85% | 2923 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 92% | 55,680 psi | 86% | 2913 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 96% | 57,116 psi | 88% | 2982 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 98% | 58,117 psi | 89% | 3045 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,668 psi | 90% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,985 psi | 88% | 2956 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,072 psi | 86% | 2844 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% | 42,337 psi | 65% | 2592 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 80% | 43,932 psi | 68% | 2720 fps | 96.8% |
| ADI AR 2209 | <<locked>> | 80% | 46,456 psi | 71% | 2723 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 80% | 41,756 psi | 64% | 2664 fps | 97.4% |
| ADI AR 2217 | <<locked>> | 84% | 35,621 psi | 55% | 2523 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 96% | 46,166 psi | 71% | 2838 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 28,456 psi | 44% | 2365 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,272 psi | 82% | 2825 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,267 psi | 71% | 2713 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,482 psi | 65% | 2671 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,133 psi | 63% | 2612 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,607 psi | 55% | 2549 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,296 psi | 71% | 2776 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 47,268 psi | 73% | 2835 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,731 psi | 72% | 2818 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 45,876 psi | 71% | 2697 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 39,421 psi | 61% | 2605 fps | 97.8% |
| Bofors RP30 | <<locked>> | 82% | 35,520 psi | 55% | 2536 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 42,482 psi | 65% | 2671 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 80% | 33,794 psi | 52% | 2477 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 80% | 44,295 psi | 68% | 2664 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,584 psi | 67% | 2651 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,183 psi | 77% | 2707 fps | 100% |
| Hodgdon Retumbo | 65.7 gr | 80% | 34,751 psi | 53% | 2585 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,282 psi | 44% | 1621 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,083 psi | 80% | 2762 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,576 psi | 81% | 2766 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,368 psi | 70% | 2657 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 80% | 40,379 psi | 62% | 2644 fps | 97% |
| IMR 8133 Enduron | <<locked>> | 90% | 36,390 psi | 56% | 2582 fps | 96% |
| Lovex S070 | <<locked>> | 80% | 54,070 psi | 83% | 2789 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,637 psi | 56% | 2474 fps | 99.1% |
| Norma 204 | <<locked>> | 80% | 52,968 psi | 81% | 2815 fps | 99.8% |
| Norma 217 | <<locked>> | 84% | 29,965 psi | 46% | 2428 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 44,962 psi | 69% | 2740 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 53,983 psi | 83% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,364 psi | 62% | 2654 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 80% | 53,040 psi | 82% | 2815 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,318 psi | 56% | 2536 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,979 psi | 45% | 1660 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,447 psi | 84% | 2874 fps | 100% |
| ReloadSwiss RS 76 | 70.3 gr | 80% | 33,866 psi | 52% | 2556 fps | 98% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 38,638 psi | 59% | 2644 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 47,253 psi | 73% | 2697 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 80% | 45,876 psi | 71% | 2703 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 54,070 psi | 83% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,520 psi | 84% | 2746 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,527 psi | 70% | 2700 fps | 99.2% |
| Somchem S361 | <<locked>> | 80% | 48,138 psi | 74% | 2687 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 51,837 psi | 80% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,470 psi | 71% | 2684 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 80% | 40,408 psi | 62% | 2559 fps | 98.6% |
| Vihtavuori N170 | <<locked>> | 92% | 51,503 psi | 79% | 2789 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 54,795 psi | 84% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,832 psi | 71% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,672 psi | 69% | 2733 fps | 97.6% |
| Vihtavuori N565 | <<locked>> | 80% | 37,057 psi | 57% | 2549 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 86% | 39,958 psi | 61% | 2661 fps | 95.1% |
| Vihtavuori N570 | 78.4 gr | 92% | 46,905 psi | 72% | 2841 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,708 psi | 84% | 2749 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,117 psi | 60% | 2667 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,598 psi | 66% | 2612 fps | 98.6% |
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 62 powders for .28 Nosler loaded with the .284 | 170gr | Sierra RN Prohunter. Vihtavuori N570 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,045 fps. ADI AR 2218 gives the best case fill at 100 %, and 62 of the 62 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 170.0 gr projectile in 0.284" calls for a 1:12.5 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. Hodgdon Retumbo, Vihtavuori N570, ReloadSwiss RS 76 rank at the top here: for .28 Nosler with the .284 | 170gr | Sierra RN Prohunter 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.