Load Specifications
Load data in caliber .28 Nosler with .284 | 123gr | RWS Kegelspitz bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, IMR 7828 SSC and Norma MRP.
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>> | 94% | 54,998 psi | 85% | 3222 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 56,072 psi | 86% | 3271 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,696 psi | 89% | 3383 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 56,739 psi | 87% | 3235 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,014 psi | 88% | 3323 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 96% | 58,769 psi | 90% | 3389 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,269 psi | 76% | 3192 fps | 96.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,005 psi | 68% | 3140 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,392 psi | 90% | 3264 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,797 psi | 87% | 3333 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 58,291 psi | 90% | 3350 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,463 psi | 87% | 3307 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 58,668 psi | 90% | 3379 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,912 psi | 86% | 3294 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,593 psi | 86% | 3353 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,768 psi | 87% | 3389 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 57,566 psi | 89% | 3363 fps | 98.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,459 psi | 79% | 3271 fps | 97.2% |
| Bofors RP5 | <<locked>> | 96% | 58,668 psi | 90% | 3379 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 58,291 psi | 90% | 3274 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,534 psi | 84% | 3304 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 57,783 psi | 89% | 3327 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 56,710 psi | 87% | 3281 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 58,639 psi | 90% | 3320 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,464 psi | 88% | 3301 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,188 psi | 88% | 3248 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,404 psi | 84% | 3419 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 84% | 54,621 psi | 84% | 3294 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 57% | 2116 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,449 psi | 87% | 3251 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,144 psi | 86% | 3238 fps | 99.4% |
| IMR 4831 | <<locked>> | 88% | 56,391 psi | 87% | 3261 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,811 psi | 86% | 3241 fps | 97% |
| IMR 7828 SSC | <<locked>> | 96% | 56,536 psi | 87% | 3360 fps | 97.7% |
| Lovex S065 | <<locked>> | 86% | 56,869 psi | 87% | 3238 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 58,726 psi | 90% | 3291 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,072 psi | 86% | 3241 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 57,798 psi | 89% | 3314 fps | 98.6% |
| Norma MRP | <<locked>> | 94% | 58,813 psi | 90% | 3406 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 58,160 psi | 89% | 3314 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,464 psi | 88% | 3386 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 88% | 57,217 psi | 88% | 3314 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 56,043 psi | 86% | 3310 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,782 psi | 58% | 2165 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,725 psi | 89% | 3340 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,217 psi | 86% | 3294 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 58,668 psi | 90% | 3389 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,463 psi | 85% | 3415 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 55,985 psi | 86% | 3219 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,160 psi | 89% | 3291 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 92% | 55,985 psi | 86% | 3294 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 58,291 psi | 90% | 3274 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,869 psi | 87% | 3238 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 58,726 psi | 90% | 3291 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,711 psi | 89% | 3284 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,840 psi | 86% | 3091 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,304 psi | 87% | 3186 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,550 psi | 85% | 3291 fps | 98.5% |
| Somchem S355 | <<locked>> | 82% | 55,782 psi | 86% | 3219 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,246 psi | 87% | 3215 fps | 96.9% |
| Somchem S365 | <<locked>> | 90% | 58,798 psi | 90% | 3314 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,666 psi | 87% | 3268 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 84% | 56,971 psi | 88% | 3186 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,275 psi | 87% | 3245 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,144 psi | 86% | 3245 fps | 99% |
| Vihtavuori N550 | <<locked>> | 86% | 55,550 psi | 85% | 3248 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,392 psi | 90% | 3330 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 58,494 psi | 90% | 3399 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,610 psi | 90% | 3373 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,043 psi | 86% | 3199 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,001 psi | 89% | 3330 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,262 psi | 90% | 3445 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,579 psi | 87% | 3261 fps | 98.6% |
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% | 33,997 psi | 52% | 2772 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 45,585 psi | 70% | 3074 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 53,722 psi | 83% | 3307 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 53,447 psi | 82% | 3179 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 43,482 psi | 67% | 3051 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 90% | 47,688 psi | 73% | 3173 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 98% | 46,006 psi | 71% | 3120 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 38,566 psi | 59% | 2992 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,752 psi | 84% | 3205 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,511 psi | 67% | 3081 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,444 psi | 78% | 3219 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 43,453 psi | 67% | 3045 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 41,698 psi | 64% | 3038 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,532 psi | 50% | 2802 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 34,664 psi | 53% | 2884 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,723 psi | 55% | 2943 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 44,222 psi | 68% | 3094 fps | 95.8% |
| Bofors RP30 | <<locked>> | 96% | 44,788 psi | 69% | 3130 fps | 95.3% |
| Bofors RP5 | <<locked>> | 86% | 41,698 psi | 64% | 3038 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,211 psi | 74% | 3084 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 94% | 44,077 psi | 68% | 3081 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 47,282 psi | 73% | 3130 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 49,676 psi | 76% | 3146 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 51,024 psi | 78% | 3182 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 50,009 psi | 77% | 3159 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,133 psi | 63% | 2956 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 41,336 psi | 64% | 3117 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 46,949 psi | 72% | 3146 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 43% | 1896 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,685 psi | 67% | 2999 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,617 psi | 76% | 3114 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 43,250 psi | 67% | 3012 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 49,139 psi | 76% | 3114 fps | 95.4% |
| IMR 7828 SSC | 78.8 gr | 92% | 49,255 psi | 76% | 3219 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 47,166 psi | 73% | 3058 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 45,411 psi | 70% | 3038 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 35,563 psi | 55% | 2815 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,743 psi | 67% | 3035 fps | 95.5% |
| Norma MRP | 72.9 gr | 82% | 38,043 psi | 59% | 2976 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 44,570 psi | 69% | 3061 fps | 99.4% |
| Ramshot Grand | <<locked>> | 90% | 46,006 psi | 71% | 3156 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 43,569 psi | 67% | 3048 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 41,278 psi | 64% | 3015 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 43% | 1939 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,635 psi | 83% | 3278 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,469 psi | 70% | 3091 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,729 psi | 67% | 3104 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 38,232 psi | 59% | 3018 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 52,417 psi | 81% | 3163 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 47,935 psi | 74% | 3097 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 42,844 psi | 66% | 3031 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,211 psi | 74% | 3084 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,166 psi | 73% | 3058 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 45,411 psi | 70% | 3038 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,911 psi | 83% | 3219 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,489 psi | 81% | 3038 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,122 psi | 71% | 2995 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 42,482 psi | 65% | 3022 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 52,257 psi | 80% | 3156 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 49,211 psi | 76% | 3084 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 41,597 psi | 64% | 3012 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 40,654 psi | 63% | 2946 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,009 psi | 77% | 3071 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,108 psi | 71% | 3061 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 40,205 psi | 62% | 2923 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,571 psi | 70% | 3058 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 36,579 psi | 56% | 2894 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 90% | 50,749 psi | 78% | 3251 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 47,485 psi | 73% | 3159 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,382 psi | 70% | 3015 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,282 psi | 73% | 3130 fps | 98.2% |
| Winchester StaBALL HD | 70.4 gr | 80% | 28,979 psi | 45% | 2789 fps | 97.8% |
| Winchester Supreme 780 | <<locked>> | 86% | 42,830 psi | 66% | 2992 fps | 95.5% |
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 73 powders for .28 Nosler loaded with the .284 | 123gr | RWS Kegelspitz. Winchester StaBALL HD delivers the highest muzzle velocity at 3,445 fps; across all powders the maximum-charge window runs from 2,116 fps to 3,445 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 123.0 gr projectile in 0.284" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, IMR 7828 SSC, Norma MRP rank at the top here: for .28 Nosler with the .284 | 123gr | RWS Kegelspitz 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.