
Load Specifications
Load data in caliber .28 Nosler with .284 | 160gr | Sierra SBT GameKing bullet and 68 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.
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>> | 90% | 56,420 psi | 87% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,884 psi | 88% | 2923 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,187 psi | 85% | 3005 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 88% | 57,943 psi | 89% | 2995 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 56,043 psi | 86% | 3005 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,218 psi | 90% | 3038 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,547 psi | 81% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,102 psi | 89% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,246 psi | 88% | 2979 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,405 psi | 87% | 2999 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,015 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,044 psi | 89% | 3035 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 58,813 psi | 90% | 3054 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,651 psi | 86% | 3061 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,768 psi | 87% | 2963 fps | 97.6% |
| Bofors RP15 | <<locked>> | 92% | 55,593 psi | 86% | 2986 fps | 99.8% |
| Bofors RP30 | <<locked>> | 98% | 57,638 psi | 89% | 3045 fps | 99.8% |
| Bofors RP5 | <<locked>> | 90% | 56,405 psi | 87% | 2999 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 58,189 psi | 90% | 2923 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,680 psi | 86% | 2999 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 58,378 psi | 90% | 2982 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,405 psi | 85% | 2936 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,146 psi | 89% | 2982 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,146 psi | 89% | 2900 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 56,826 psi | 87% | 3117 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,521 psi | 58% | 1867 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,710 psi | 87% | 2913 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,188 psi | 88% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,115 psi | 86% | 2920 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 92% | 58,030 psi | 89% | 3045 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,109 psi | 74% | 2904 fps | 98.6% |
| Lovex S065 | <<locked>> | 82% | 56,985 psi | 88% | 2890 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,361 psi | 85% | 2887 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,783 psi | 89% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,928 psi | 89% | 2972 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 48,747 psi | 75% | 2930 fps | 99.9% |
| Norma MRP | <<locked>> | 88% | 56,449 psi | 87% | 3018 fps | 100% |
| Norma URP | <<locked>> | 84% | 58,813 psi | 90% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,114 psi | 85% | 3005 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 57,783 psi | 89% | 2969 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 57,740 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,392 psi | 59% | 1909 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,043 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,579 psi | 86% | 2976 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,696 psi | 89% | 3110 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 57,116 psi | 88% | 3071 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 88% | 58,465 psi | 90% | 2963 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 88% | 57,058 psi | 88% | 2972 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 58,189 psi | 90% | 2923 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,985 psi | 88% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,361 psi | 85% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,956 psi | 86% | 2844 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,695 psi | 87% | 2969 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 56,333 psi | 87% | 2897 fps | 99% |
| Somchem S365 | <<locked>> | 84% | 56,391 psi | 87% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,421 psi | 88% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,623 psi | 87% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,203 psi | 88% | 2927 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 55,985 psi | 86% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,289 psi | 87% | 2940 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,014 psi | 86% | 3015 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 94% | 56,405 psi | 87% | 3005 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 98% | 57,624 psi | 89% | 3071 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 98% | 54,752 psi | 84% | 3064 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,057 psi | 86% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,610 psi | 90% | 2986 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,580 psi | 89% | 3054 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,464 psi | 88% | 2943 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 3100 | <<locked>> | 80% | 40,292 psi | 62% | 2625 fps | 99.3% |
| Accurate 4350 | <<locked>> | 80% | 53,287 psi | 82% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,510 psi | 64% | 2740 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 44,382 psi | 68% | 2756 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 80% | 39,624 psi | 61% | 2687 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 88% | 38,696 psi | 60% | 2664 fps | 96% |
| ADI AR 2225 | <<locked>> | 84% | 30,835 psi | 47% | 2503 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,937 psi | 78% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,266 psi | 68% | 2749 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,219 psi | 62% | 2694 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,030 psi | 60% | 2648 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,736 psi | 52% | 2572 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,671 psi | 67% | 2805 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 47,732 psi | 73% | 2917 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 46,992 psi | 72% | 2785 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 37,478 psi | 58% | 2631 fps | 96.5% |
| Bofors RP30 | <<locked>> | 84% | 35,853 psi | 55% | 2618 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 40,219 psi | 62% | 2694 fps | 97.5% |
| Bofors RP7 | <<locked>> | 80% | 54,665 psi | 84% | 2867 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 36,883 psi | 57% | 2621 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 54,563 psi | 84% | 2923 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,148 psi | 65% | 2690 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,466 psi | 64% | 2674 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,993 psi | 74% | 2749 fps | 100% |
| Hodgdon Retumbo | 65.7 gr | 80% | 32,924 psi | 51% | 2595 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 43% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,067 psi | 77% | 2805 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 50,357 psi | 77% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,598 psi | 67% | 2690 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 80% | 38,392 psi | 59% | 2667 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 92% | 36,622 psi | 56% | 2654 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 53,577 psi | 82% | 2838 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,025 psi | 80% | 2835 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,824 psi | 54% | 2503 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 50,560 psi | 78% | 2851 fps | 99.3% |
| Norma 217 | <<locked>> | 88% | 32,227 psi | 50% | 2562 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 42,641 psi | 66% | 2769 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 51,750 psi | 80% | 2851 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,174 psi | 59% | 2674 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 50,589 psi | 78% | 2858 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,127 psi | 53% | 2549 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,834 psi | 44% | 1706 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,316 psi | 82% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,808 psi | 80% | 2917 fps | 100% |
| ReloadSwiss RS 76 | 70.3 gr | 80% | 32,010 psi | 49% | 2566 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 42,076 psi | 65% | 2792 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 45,339 psi | 70% | 2733 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 80% | 43,787 psi | 67% | 2736 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 80% | 54,665 psi | 84% | 2867 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,577 psi | 82% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,025 psi | 80% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,504 psi | 81% | 2792 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,453 psi | 67% | 2730 fps | 98.3% |
| Somchem S361 | <<locked>> | 80% | 46,224 psi | 71% | 2723 fps | 97.3% |
| Somchem S365 | <<locked>> | 80% | 49,400 psi | 76% | 2805 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,251 psi | 68% | 2717 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 80% | 53,171 psi | 82% | 2844 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,566 psi | 59% | 2589 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 80% | 52,402 psi | 81% | 2848 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,424 psi | 67% | 2726 fps | 100% |
| Vihtavuori N560 | 68.2 gr | 80% | 42,467 psi | 65% | 2759 fps | 96.4% |
| Vihtavuori N565 | <<locked>> | 84% | 40,176 psi | 62% | 2694 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 90% | 43,424 psi | 67% | 2808 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 96% | 50,937 psi | 78% | 2992 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,460 psi | 81% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 54,810 psi | 84% | 2927 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,274 psi | 56% | 2690 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,654 psi | 63% | 2644 fps | 97.6% |
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 68 powders for .28 Nosler loaded with the .284 | 160gr | Sierra SBT GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,117 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,117 fps. ADI AR 2217 gives the best case fill at 100 %, and 68 of the 68 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 160.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for .28 Nosler with the .284 | 160gr | Sierra SBT GameKing 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.