Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 120gr | Sako Powerhead Blade bullet and 77 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 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 58,508 psi | 90% | 3173 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,869 psi | 86% | 3153 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,479 psi | 88% | 3284 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 82% | 56,898 psi | 88% | 3114 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,942 psi | 88% | 3219 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 58,740 psi | 90% | 3287 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,110 psi | 76% | 3104 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,671 psi | 67% | 3058 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,175 psi | 89% | 3133 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,116 psi | 88% | 3219 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 58,276 psi | 90% | 3228 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,565 psi | 87% | 3205 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 58,581 psi | 90% | 3278 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,985 psi | 86% | 3186 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,230 psi | 85% | 3248 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,594 psi | 87% | 3281 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,565 psi | 87% | 3173 fps | 96.5% |
| Bofors RP15 | <<locked>> | 98% | 57,392 psi | 88% | 3258 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,184 psi | 79% | 3179 fps | 98.6% |
| Bofors RP5 | <<locked>> | 96% | 58,581 psi | 90% | 3278 fps | 99.8% |
| Bofors RP7 | <<locked>> | 86% | 58,305 psi | 90% | 3159 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 3205 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 86% | 57,798 psi | 89% | 3215 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,623 psi | 87% | 3169 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 58,450 psi | 90% | 3215 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,305 psi | 88% | 3199 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,203 psi | 88% | 3130 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,259 psi | 83% | 3323 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 58,610 psi | 90% | 3255 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 57% | 2001 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,434 psi | 87% | 3143 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,217 psi | 86% | 3123 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,159 psi | 86% | 3143 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,651 psi | 86% | 3136 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 56,507 psi | 87% | 3261 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 56,768 psi | 87% | 3123 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 58,581 psi | 90% | 3176 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,579 psi | 86% | 3130 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,638 psi | 89% | 3205 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 39,117 psi | 60% | 2969 fps | 97.7% |
| Norma MRP | <<locked>> | 94% | 58,595 psi | 90% | 3301 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,131 psi | 89% | 3196 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,464 psi | 88% | 3284 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 88% | 57,072 psi | 88% | 3202 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,825 psi | 86% | 3209 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 58% | 2044 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,957 psi | 89% | 3215 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,101 psi | 86% | 3179 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 58,508 psi | 90% | 3271 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,172 psi | 85% | 3320 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,879 psi | 77% | 3186 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 82% | 55,738 psi | 86% | 3097 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,204 psi | 90% | 3186 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 55,912 psi | 86% | 3192 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 58,305 psi | 90% | 3159 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,768 psi | 87% | 3123 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 58,581 psi | 90% | 3176 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,754 psi | 89% | 3163 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,811 psi | 86% | 2963 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,101 psi | 86% | 3071 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,477 psi | 85% | 3186 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 55,492 psi | 85% | 3091 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,072 psi | 86% | 3114 fps | 98.3% |
| Somchem S365 | <<locked>> | 90% | 58,784 psi | 90% | 3196 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,202 psi | 86% | 3156 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 56,942 psi | 88% | 3061 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,275 psi | 87% | 3130 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,072 psi | 86% | 3140 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 55,259 psi | 85% | 3130 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,073 psi | 89% | 3212 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 58,334 psi | 90% | 3297 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,175 psi | 89% | 3271 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,155 psi | 79% | 3199 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,840 psi | 86% | 3081 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,044 psi | 89% | 3219 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,972 psi | 89% | 3330 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,550 psi | 87% | 3156 fps | 99.5% |
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% | 33,460 psi | 51% | 2684 fps | 96.9% |
| Accurate 4350 | <<locked>> | 80% | 45,237 psi | 70% | 2972 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,122 psi | 71% | 3071 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 53,490 psi | 82% | 3061 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,840 psi | 58% | 2831 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 86% | 41,437 psi | 64% | 2949 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 39,856 psi | 61% | 2900 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 92% | 33,344 psi | 51% | 2785 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,665 psi | 84% | 3084 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,410 psi | 67% | 2979 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,357 psi | 77% | 3107 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,855 psi | 58% | 2828 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,955 psi | 55% | 2818 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,242 psi | 50% | 2720 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,921 psi | 46% | 2674 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,433 psi | 55% | 2864 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,185 psi | 82% | 3114 fps | 95.7% |
| Bofors RP15 | <<locked>> | 86% | 38,305 psi | 59% | 2877 fps | 95.8% |
| Bofors RP30 | <<locked>> | 92% | 38,696 psi | 60% | 2913 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 35,955 psi | 55% | 2818 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,153 psi | 74% | 2979 fps | 99% |
| Hodgdon H1000 | <<locked>> | 90% | 38,145 psi | 59% | 2861 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 47,094 psi | 72% | 3028 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 49,792 psi | 77% | 3048 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 44,382 psi | 68% | 2959 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,511 psi | 67% | 2936 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,944 psi | 63% | 2854 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,969 psi | 55% | 2900 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 46,818 psi | 72% | 3051 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 42% | 1791 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,656 psi | 67% | 2907 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,516 psi | 76% | 3009 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,018 psi | 66% | 2913 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,105 psi | 66% | 2894 fps | 95.5% |
| IMR 7828 SSC | 60.3 gr | 88% | 42,685 psi | 66% | 2989 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 46,949 psi | 72% | 2953 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,281 psi | 70% | 2940 fps | 99.1% |
| Lovex S071 | <<locked>> | 82% | 30,589 psi | 47% | 2605 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,729 psi | 67% | 2943 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 33,982 psi | 52% | 2831 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 35,041 psi | 54% | 2825 fps | 96.3% |
| Norma URP | <<locked>> | 80% | 44,527 psi | 69% | 2959 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 39,450 psi | 61% | 2927 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 43,526 psi | 67% | 2956 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 35,070 psi | 54% | 2789 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 43% | 1831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,635 psi | 83% | 3156 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,339 psi | 70% | 2992 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,584 psi | 67% | 3009 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,619 psi | 50% | 2795 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,035 psi | 71% | 3110 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 52,315 psi | 80% | 3041 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,785 psi | 64% | 2874 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 37,115 psi | 57% | 2808 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,153 psi | 74% | 2979 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,949 psi | 72% | 2953 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,281 psi | 70% | 2940 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,012 psi | 83% | 3107 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,417 psi | 81% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,934 psi | 71% | 2894 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,796 psi | 57% | 2805 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 52,127 psi | 80% | 3038 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,728 psi | 66% | 2864 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 41,481 psi | 64% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,623 psi | 58% | 2792 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 80% | 49,951 psi | 77% | 2956 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,021 psi | 71% | 2956 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,737 psi | 53% | 2710 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,397 psi | 70% | 2959 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,114 psi | 56% | 2802 fps | 99.3% |
| Vihtavuori N560 | 61.2 gr | 86% | 43,918 psi | 68% | 3022 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 40,988 psi | 63% | 2940 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 47,340 psi | 73% | 3123 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,136 psi | 69% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,326 psi | 73% | 3031 fps | 99.3% |
| Winchester StaBALL HD | 56.4 gr | 80% | 28,601 psi | 44% | 2726 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,840 psi | 57% | 2769 fps | 95.4% |
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 77 powders for 6.5 Weatherby RPM loaded with the .264 | 120gr | Sako Powerhead Blade. Winchester StaBALL HD delivers the highest muzzle velocity at 3,330 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,330 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 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 0.264" calls for a 1:8.5 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, Vihtavuori N560 rank at the top here: for 6.5 Weatherby RPM with the .264 | 120gr | Sako Powerhead Blade 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.