Load Specifications
Load data in caliber 6.5 Weatherby RPM with .263 | 120gr | Rhino Solid Shank bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Hodgdon Retumbo and Winchester StaBALL HD.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 55,187 psi | 85% | 3123 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,101 psi | 86% | 3159 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,884 psi | 88% | 3291 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 92% | 57,740 psi | 89% | 3287 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 90% | 56,855 psi | 87% | 3219 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 92% | 54,824 psi | 84% | 3225 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,881 psi | 81% | 3182 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,529 psi | 73% | 3143 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,217 psi | 88% | 3219 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,217 psi | 88% | 3219 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,913 psi | 88% | 3215 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 58,102 psi | 89% | 3228 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,536 psi | 87% | 3209 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,085 psi | 85% | 3222 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,579 psi | 87% | 3189 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,101 psi | 86% | 3255 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,276 psi | 88% | 3287 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,434 psi | 87% | 3179 fps | 96.8% |
| Bofors RP15 | <<locked>> | 96% | 57,914 psi | 89% | 3268 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,854 psi | 86% | 3258 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 55,085 psi | 85% | 3222 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 57,928 psi | 89% | 3156 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,537 psi | 90% | 3278 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 57,725 psi | 89% | 3219 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,275 psi | 87% | 3166 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 58,349 psi | 90% | 3219 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,276 psi | 88% | 3202 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,246 psi | 88% | 3130 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,042 psi | 85% | 3340 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,552 psi | 90% | 3255 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,246 psi | 57% | 2021 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,188 psi | 86% | 3143 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,767 psi | 86% | 3123 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,318 psi | 87% | 3146 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,419 psi | 85% | 3140 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 94% | 56,652 psi | 87% | 3264 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,091 psi | 66% | 3035 fps | 96.9% |
| Lovex S065 | <<locked>> | 84% | 56,565 psi | 87% | 3123 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,494 psi | 90% | 3179 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,507 psi | 87% | 3143 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,276 psi | 88% | 3202 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 43,221 psi | 66% | 3061 fps | 98.9% |
| Norma MRP | <<locked>> | 90% | 55,100 psi | 85% | 3245 fps | 100% |
| Norma URP | <<locked>> | 86% | 58,146 psi | 89% | 3196 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,870 psi | 89% | 3294 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 56,956 psi | 88% | 3199 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,072 psi | 86% | 3212 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,189 psi | 59% | 2070 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,289 psi | 87% | 3182 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,581 psi | 90% | 3271 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,927 psi | 86% | 3333 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,027 psi | 85% | 3278 fps | 98.4% |
| Rottweil R 904 | <<locked>> | 90% | 57,972 psi | 89% | 3189 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 56,086 psi | 86% | 3199 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 57,928 psi | 89% | 3156 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,565 psi | 87% | 3123 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,494 psi | 90% | 3179 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,711 psi | 90% | 3005 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,637 psi | 86% | 3071 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,651 psi | 86% | 3192 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 55,767 psi | 86% | 3117 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 55,158 psi | 85% | 3140 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,623 psi | 87% | 3166 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,492 psi | 87% | 3058 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,057 psi | 86% | 3127 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,188 psi | 86% | 3143 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 55,347 psi | 85% | 3133 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,624 psi | 90% | 3222 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 58,784 psi | 90% | 3307 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 54,955 psi | 85% | 3219 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,912 psi | 86% | 3284 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,753 psi | 86% | 3081 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,725 psi | 89% | 3219 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,911 psi | 84% | 3278 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,492 psi | 87% | 3159 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 36,796 psi | 57% | 2766 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 49,037 psi | 75% | 3038 fps | 100% |
| Accurate High Country | 59.4 gr | 80% | 39,827 psi | 61% | 2940 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 84% | 43,526 psi | 67% | 3012 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 40,756 psi | 63% | 2904 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 41,756 psi | 64% | 2959 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 40,364 psi | 62% | 2917 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 31,908 psi | 49% | 2740 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,176 psi | 63% | 2904 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,176 psi | 63% | 2904 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,818 psi | 72% | 3045 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,128 psi | 83% | 3166 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,799 psi | 63% | 2897 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,622 psi | 56% | 2831 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,244 psi | 54% | 2792 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,676 psi | 47% | 2697 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,015 psi | 60% | 2949 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,806 psi | 77% | 3054 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 36,361 psi | 56% | 2825 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 39,653 psi | 61% | 2936 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 36,622 psi | 56% | 2831 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 51,024 psi | 78% | 3038 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 38,580 psi | 59% | 2877 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 50,328 psi | 77% | 3091 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,823 psi | 81% | 3107 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 41,553 psi | 64% | 2897 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,758 psi | 67% | 2946 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,106 psi | 68% | 2913 fps | 100% |
| Hodgdon Retumbo | 60.1 gr | 84% | 34,098 psi | 52% | 2844 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 50,604 psi | 78% | 3123 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 43% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,543 psi | 72% | 2966 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,402 psi | 81% | 3068 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,398 psi | 71% | 2979 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,480 psi | 62% | 2838 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 40,190 psi | 62% | 2933 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 98% | 40,234 psi | 62% | 2969 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 49,908 psi | 77% | 3009 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,283 psi | 74% | 2999 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 31,647 psi | 49% | 2631 fps | 96.4% |
| Norma 204 | <<locked>> | 80% | 46,688 psi | 72% | 3009 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 32,866 psi | 51% | 2795 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 38,392 psi | 59% | 2907 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 47,645 psi | 73% | 3022 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,958 psi | 61% | 2940 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 46,615 psi | 72% | 3018 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 33,185 psi | 51% | 2736 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,616 psi | 44% | 1854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,994 psi | 75% | 3061 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,195 psi | 73% | 3081 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 33,446 psi | 51% | 2822 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,671 psi | 67% | 3058 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 42,018 psi | 65% | 2881 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,059 psi | 62% | 2881 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,024 psi | 78% | 3038 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,908 psi | 77% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,283 psi | 74% | 2999 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,332 psi | 85% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,965 psi | 75% | 2956 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,726 psi | 61% | 2877 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 42,786 psi | 66% | 2867 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 45,092 psi | 69% | 2976 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,712 psi | 63% | 2864 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 52,997 psi | 82% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,269 psi | 76% | 3015 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,346 psi | 54% | 2726 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 48,573 psi | 75% | 3018 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,450 psi | 61% | 2874 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 82% | 41,278 psi | 64% | 2963 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 88% | 41,872 psi | 64% | 2959 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 44,947 psi | 69% | 3071 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,443 psi | 75% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,589 psi | 78% | 3094 fps | 99.7% |
| Winchester StaBALL HD | 58.8 gr | 80% | 31,633 psi | 49% | 2818 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,289 psi | 57% | 2782 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 6.5 Weatherby RPM loaded with the .263 | 120gr | Rhino Solid Shank. Hodgdon Retumbo delivers the highest muzzle velocity at 3,340 fps; across all powders the maximum-charge window runs from 2,021 fps to 3,340 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 120.0 gr projectile in 0.263" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Accurate High Country, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 6.5 Weatherby RPM with the .263 | 120gr | Rhino Solid Shank 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.