Load Specifications
Load data in caliber .28 Nosler with .284 | 145gr | Speer Boat-Tail bullet and 70 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>> | 92% | 56,884 psi | 88% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,856 psi | 89% | 3077 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,709 psi | 86% | 3140 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 58,479 psi | 90% | 3133 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 56,478 psi | 87% | 3143 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,752 psi | 84% | 3104 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,168 psi | 76% | 3061 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 58,581 psi | 90% | 3130 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,957 psi | 89% | 3120 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,739 psi | 87% | 3133 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 58,392 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 58,204 psi | 90% | 3176 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,100 psi | 85% | 3140 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,653 psi | 89% | 3097 fps | 96.8% |
| Bofors RP15 | <<locked>> | 94% | 55,927 psi | 86% | 3120 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,899 psi | 89% | 3179 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 56,739 psi | 87% | 3133 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 55,593 psi | 86% | 3012 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 56,318 psi | 87% | 3133 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 55,506 psi | 85% | 3071 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 57,653 psi | 89% | 3081 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 56,086 psi | 86% | 3074 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,187 psi | 85% | 3058 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,245 psi | 85% | 2995 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,797 psi | 87% | 3255 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,057 psi | 86% | 3107 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,304 psi | 57% | 1959 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,551 psi | 89% | 3058 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,072 psi | 88% | 3038 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,827 psi | 89% | 3061 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,811 psi | 87% | 3054 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 58,552 psi | 90% | 3182 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,556 psi | 69% | 2953 fps | 96.9% |
| Lovex S065 | <<locked>> | 84% | 57,827 psi | 89% | 3038 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,260 psi | 87% | 3035 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 58,305 psi | 90% | 3064 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,998 psi | 85% | 3054 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 45,107 psi | 69% | 2982 fps | 99% |
| Norma MRP | <<locked>> | 90% | 56,869 psi | 87% | 3159 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,941 psi | 86% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,593 psi | 86% | 3143 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 58,479 psi | 90% | 3114 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 58,349 psi | 90% | 3136 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,290 psi | 59% | 2005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,885 psi | 89% | 3097 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,289 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 58,015 psi | 89% | 3251 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 57,305 psi | 88% | 3202 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 88% | 55,651 psi | 86% | 3041 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 90% | 57,783 psi | 89% | 3117 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 55,593 psi | 86% | 3012 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,827 psi | 89% | 3038 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,260 psi | 87% | 3035 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,043 psi | 88% | 2989 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,348 psi | 88% | 3110 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 57,435 psi | 88% | 3035 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 56,826 psi | 87% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 58,276 psi | 90% | 3084 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 57,870 psi | 89% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,696 psi | 89% | 3045 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,943 psi | 89% | 3064 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 56,869 psi | 87% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,768 psi | 87% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,507 psi | 87% | 3156 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 56,826 psi | 87% | 3136 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,841 psi | 89% | 3199 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,217 psi | 88% | 2995 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,506 psi | 85% | 3071 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 57,290 psi | 88% | 3192 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 58,276 psi | 90% | 3081 fps | 99.7% |
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% | 37,869 psi | 58% | 2687 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 50,343 psi | 77% | 2953 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 45,005 psi | 69% | 2933 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 41,916 psi | 64% | 2825 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 42,902 psi | 66% | 2874 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 41,655 psi | 64% | 2844 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 88% | 32,996 psi | 51% | 2667 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,167 psi | 74% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,872 psi | 64% | 2815 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,724 psi | 58% | 2753 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,564 psi | 56% | 2717 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,647 psi | 49% | 2621 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,596 psi | 62% | 2867 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,894 psi | 78% | 2972 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 37,579 psi | 58% | 2746 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 41,031 psi | 63% | 2851 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 37,724 psi | 58% | 2753 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 52,272 psi | 80% | 2956 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 39,755 psi | 61% | 2802 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 51,924 psi | 80% | 3009 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 54,012 psi | 83% | 3022 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 42,801 psi | 66% | 2818 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 44,947 psi | 69% | 2864 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,455 psi | 70% | 2835 fps | 100% |
| Hodgdon Retumbo | 70.2 gr | 84% | 35,244 psi | 54% | 2766 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 52,127 psi | 80% | 3038 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,963 psi | 43% | 1752 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,718 psi | 73% | 2887 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,505 psi | 82% | 2979 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 47,703 psi | 73% | 2894 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,481 psi | 64% | 2759 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 41,495 psi | 64% | 2854 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 98% | 41,655 psi | 64% | 2887 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 51,198 psi | 79% | 2930 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,574 psi | 76% | 2917 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,648 psi | 50% | 2556 fps | 96.4% |
| Norma 204 | <<locked>> | 80% | 48,066 psi | 74% | 2927 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 34,113 psi | 52% | 2720 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 39,813 psi | 61% | 2825 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 49,081 psi | 76% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 41,350 psi | 64% | 2864 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 47,993 psi | 74% | 2936 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 34,432 psi | 53% | 2664 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,732 psi | 44% | 1795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,415 psi | 78% | 2976 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,747 psi | 75% | 2999 fps | 100% |
| ReloadSwiss RS 76 | 75.2 gr | 84% | 34,577 psi | 53% | 2746 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 45,426 psi | 70% | 2979 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 43,091 psi | 66% | 2802 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 41,307 psi | 64% | 2802 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 52,272 psi | 80% | 2956 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,198 psi | 79% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,574 psi | 76% | 2917 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,183 psi | 77% | 2874 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,973 psi | 63% | 2795 fps | 96.8% |
| Somchem S361 | <<locked>> | 80% | 43,947 psi | 68% | 2789 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 46,485 psi | 72% | 2894 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,785 psi | 64% | 2782 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 54,360 psi | 84% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,473 psi | 78% | 2930 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,347 psi | 56% | 2648 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 49,908 psi | 77% | 2936 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,828 psi | 63% | 2795 fps | 99.9% |
| Vihtavuori N560 | 71.2 gr | 82% | 42,815 psi | 66% | 2887 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 43,308 psi | 67% | 2877 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 46,688 psi | 72% | 2995 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,806 psi | 77% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,924 psi | 80% | 3009 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,214 psi | 51% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,276 psi | 59% | 2700 fps | 95.8% |
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 75 powders for .28 Nosler loaded with the .284 | 145gr | Speer Boat-Tail. Hodgdon Retumbo delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,255 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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 | 145gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, IMR 7977 Enduron, Vihtavuori N170 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.