Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 120gr | Barnes TAC-TX BT 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, Vihtavuori N560 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 55,013 psi | 85% | 3120 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,231 psi | 87% | 3159 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,044 psi | 89% | 3294 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 57,232 psi | 88% | 3120 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,537 psi | 89% | 3228 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 55,216 psi | 85% | 3228 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,545 psi | 76% | 3114 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,063 psi | 68% | 3068 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,523 psi | 90% | 3140 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,464 psi | 88% | 3225 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,723 psi | 84% | 3179 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,840 psi | 87% | 3212 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,216 psi | 85% | 3222 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,289 psi | 87% | 3189 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,043 psi | 86% | 3258 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,217 psi | 88% | 3291 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,188 psi | 88% | 3189 fps | 96.7% |
| Bofors RP15 | <<locked>> | 98% | 57,914 psi | 89% | 3268 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,692 psi | 80% | 3189 fps | 98.7% |
| Bofors RP5 | <<locked>> | 94% | 55,216 psi | 85% | 3222 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 58,624 psi | 90% | 3166 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,781 psi | 84% | 3215 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 86% | 58,088 psi | 89% | 3222 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,203 psi | 88% | 3179 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 55,027 psi | 85% | 3159 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,827 psi | 89% | 3205 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,551 psi | 89% | 3136 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,766 psi | 84% | 3333 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,955 psi | 85% | 3199 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 57% | 2005 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,971 psi | 88% | 3153 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,507 psi | 87% | 3130 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,739 psi | 87% | 3153 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,173 psi | 86% | 3146 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 57,043 psi | 88% | 3271 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 57,072 psi | 88% | 3127 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,390 psi | 85% | 3123 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,159 psi | 86% | 3140 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,218 psi | 90% | 3215 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 39,566 psi | 61% | 2982 fps | 97.9% |
| Norma MRP | <<locked>> | 92% | 55,143 psi | 85% | 3245 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,465 psi | 90% | 3199 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,030 psi | 89% | 3294 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 57,609 psi | 89% | 3209 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,318 psi | 87% | 3219 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,724 psi | 58% | 2051 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,363 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,405 psi | 87% | 3186 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,114 psi | 85% | 3222 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,912 psi | 86% | 3333 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,633 psi | 78% | 3202 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 56,115 psi | 86% | 3104 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,465 psi | 90% | 3189 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 56,217 psi | 86% | 3199 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 58,624 psi | 90% | 3166 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,072 psi | 88% | 3127 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,390 psi | 85% | 3123 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,073 psi | 89% | 3169 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,173 psi | 86% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,333 psi | 87% | 3077 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,782 psi | 86% | 3192 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 55,840 psi | 86% | 3097 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,536 psi | 87% | 3123 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 55,405 psi | 85% | 3150 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,753 psi | 87% | 3166 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,290 psi | 88% | 3068 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,608 psi | 87% | 3136 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,579 psi | 87% | 3150 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 55,796 psi | 86% | 3140 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,392 psi | 90% | 3219 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,998 psi | 85% | 3241 fps | 98.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,682 psi | 90% | 3281 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,648 psi | 79% | 3209 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,333 psi | 87% | 3087 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,363 psi | 90% | 3225 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,610 psi | 90% | 3337 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,029 psi | 88% | 3166 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% | 33,750 psi | 52% | 2694 fps | 97% |
| Accurate 4350 | <<locked>> | 80% | 45,629 psi | 70% | 2979 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,615 psi | 72% | 3081 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 53,838 psi | 83% | 3068 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,159 psi | 59% | 2841 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 86% | 41,684 psi | 64% | 2956 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 94% | 40,248 psi | 62% | 2913 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 92% | 33,692 psi | 52% | 2799 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 55,027 psi | 85% | 3087 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,772 psi | 67% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,981 psi | 78% | 3117 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,189 psi | 59% | 2838 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,419 psi | 56% | 2831 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,547 psi | 50% | 2730 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,282 psi | 44% | 2618 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,723 psi | 55% | 2874 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,577 psi | 82% | 3123 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 36,143 psi | 56% | 2822 fps | 95% |
| Bofors RP30 | <<locked>> | 92% | 38,957 psi | 60% | 2920 fps | 95.5% |
| Bofors RP5 | <<locked>> | 82% | 36,419 psi | 56% | 2831 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 48,472 psi | 75% | 2989 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 38,537 psi | 59% | 2874 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,442 psi | 73% | 3035 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 50,096 psi | 77% | 3054 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 44,672 psi | 69% | 2966 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,772 psi | 67% | 2946 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,307 psi | 64% | 2861 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,187 psi | 56% | 2907 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 47,340 psi | 73% | 3061 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 42% | 1791 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,947 psi | 68% | 2913 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,821 psi | 77% | 3015 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,352 psi | 67% | 2920 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,337 psi | 67% | 2900 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 86% | 40,205 psi | 62% | 2930 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 47,268 psi | 73% | 2959 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,614 psi | 70% | 2946 fps | 99.2% |
| Lovex S071 | <<locked>> | 82% | 30,893 psi | 48% | 2615 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 44,034 psi | 68% | 2953 fps | 97.4% |
| Norma 217 | <<locked>> | 96% | 34,418 psi | 53% | 2844 fps | 95.9% |
| Norma MRP | 57.4 gr | 80% | 35,534 psi | 55% | 2838 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 44,875 psi | 69% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,914 psi | 61% | 2940 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 43,816 psi | 67% | 2963 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 35,505 psi | 55% | 2802 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,239 psi | 43% | 1837 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,360 psi | 84% | 3166 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,687 psi | 70% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,121 psi | 68% | 3022 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,996 psi | 51% | 2808 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 43,192 psi | 66% | 3048 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,692 psi | 81% | 3048 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,450 psi | 61% | 2822 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 37,420 psi | 58% | 2818 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,472 psi | 75% | 2989 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,268 psi | 73% | 2959 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,614 psi | 70% | 2946 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,346 psi | 84% | 3110 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,779 psi | 81% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,267 psi | 71% | 2900 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,115 psi | 57% | 2815 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 52,489 psi | 81% | 3045 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,946 psi | 66% | 2867 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 41,843 psi | 64% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,927 psi | 58% | 2799 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,285 psi | 77% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,354 psi | 71% | 2963 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,186 psi | 54% | 2723 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 45,701 psi | 70% | 2966 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,463 psi | 56% | 2808 fps | 99.4% |
| Vihtavuori N560 | 60.2 gr | 84% | 41,176 psi | 63% | 2963 fps | 95% |
| Vihtavuori N565 | <<locked>> | 90% | 41,249 psi | 63% | 2946 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 96% | 44,498 psi | 68% | 3064 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,658 psi | 70% | 2920 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,659 psi | 73% | 3038 fps | 99.4% |
| Winchester StaBALL HD | 56.8 gr | 80% | 28,863 psi | 44% | 2736 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,115 psi | 57% | 2779 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 77 powders for 6.5 Weatherby RPM loaded with the .264 | 120gr | Barnes TAC-TX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,337 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,337 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 1:9.0 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, Vihtavuori N560, Norma MRP rank at the top here: for 6.5 Weatherby RPM with the .264 | 120gr | Barnes TAC-TX BT 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.