Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 120gr | Swift A-Frame bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD and ReloadSwiss RS 76.
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% | 54,940 psi | 85% | 3120 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,072 psi | 86% | 3156 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,754 psi | 89% | 3287 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 90% | 56,869 psi | 87% | 3219 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 58,682 psi | 90% | 3287 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,910 psi | 81% | 3179 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,355 psi | 73% | 3136 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,971 psi | 88% | 3215 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,913 psi | 88% | 3215 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 58,117 psi | 89% | 3228 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,304 psi | 87% | 3205 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,784 psi | 90% | 3281 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,318 psi | 87% | 3189 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,811 psi | 86% | 3255 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,956 psi | 88% | 3284 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,231 psi | 87% | 3176 fps | 96.7% |
| Bofors RP15 | <<locked>> | 96% | 57,682 psi | 89% | 3261 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,608 psi | 86% | 3255 fps | 99.3% |
| Bofors RP5 | <<locked>> | 94% | 58,784 psi | 90% | 3281 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 57,899 psi | 89% | 3156 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,291 psi | 90% | 3274 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 57,464 psi | 88% | 3212 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,260 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% | 57,232 psi | 88% | 3130 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 58,639 psi | 90% | 3399 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,247 psi | 90% | 3251 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 57% | 2018 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,941 psi | 86% | 3136 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,521 psi | 85% | 3117 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 56,333 psi | 87% | 3143 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,434 psi | 85% | 3140 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 94% | 56,681 psi | 87% | 3264 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,859 psi | 66% | 3031 fps | 96.8% |
| Lovex S065 | <<locked>> | 84% | 56,536 psi | 87% | 3120 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,247 psi | 90% | 3173 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,231 psi | 87% | 3140 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,319 psi | 88% | 3202 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 43,018 psi | 66% | 3058 fps | 98.9% |
| Norma MRP | <<locked>> | 90% | 54,853 psi | 84% | 3238 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,899 psi | 89% | 3192 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,609 psi | 89% | 3287 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 56,927 psi | 88% | 3202 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,115 psi | 86% | 3212 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,101 psi | 59% | 2067 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,057 psi | 86% | 3179 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,595 psi | 90% | 3271 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,666 psi | 86% | 3330 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,781 psi | 84% | 3274 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 90% | 57,711 psi | 89% | 3182 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 55,796 psi | 86% | 3192 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 57,899 psi | 89% | 3156 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,536 psi | 87% | 3120 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,247 psi | 90% | 3173 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,726 psi | 90% | 3005 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,622 psi | 86% | 3068 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,376 psi | 85% | 3189 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 55,782 psi | 86% | 3114 fps | 98.4% |
| Somchem S365 | <<locked>> | 86% | 54,897 psi | 84% | 3136 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,362 psi | 87% | 3163 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,463 psi | 87% | 3054 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,072 psi | 86% | 3127 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,188 psi | 86% | 3143 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 55,317 psi | 85% | 3133 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,595 psi | 90% | 3219 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 58,523 psi | 90% | 3304 fps | 99% |
| Vihtavuori N565 | <<locked>> | 98% | 58,697 psi | 90% | 3281 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,680 psi | 86% | 3281 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,521 psi | 85% | 3077 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,754 psi | 89% | 3215 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,621 psi | 84% | 3274 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,275 psi | 87% | 3156 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% | 36,579 psi | 56% | 2759 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 48,762 psi | 75% | 3035 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 43,279 psi | 67% | 3009 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 40,524 psi | 62% | 2897 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 41,539 psi | 64% | 2953 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 92% | 40,176 psi | 62% | 2913 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 88% | 31,763 psi | 49% | 2736 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,959 psi | 63% | 2900 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,514 psi | 72% | 3038 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,128 psi | 83% | 3166 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,582 psi | 62% | 2890 fps | 96.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,419 psi | 56% | 2825 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,215 psi | 54% | 2792 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,501 psi | 47% | 2690 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,972 psi | 60% | 2946 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,617 psi | 76% | 3051 fps | 95% |
| Bofors RP15 | <<locked>> | 82% | 36,332 psi | 56% | 2822 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 39,407 psi | 61% | 2930 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 36,419 psi | 56% | 2825 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 51,024 psi | 78% | 3038 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 38,392 psi | 59% | 2871 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 50,299 psi | 77% | 3087 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,591 psi | 81% | 3104 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 41,524 psi | 64% | 2894 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,555 psi | 67% | 2940 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,034 psi | 68% | 2913 fps | 100% |
| Hodgdon Retumbo | 60 gr | 84% | 34,098 psi | 52% | 2844 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 50,357 psi | 77% | 3120 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 43% | 1804 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,325 psi | 71% | 2963 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,170 psi | 80% | 3061 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,151 psi | 71% | 2972 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,902 psi | 66% | 2894 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 40,001 psi | 62% | 2927 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 40,016 psi | 62% | 2963 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 49,879 psi | 77% | 3009 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,240 psi | 74% | 2999 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 31,473 psi | 48% | 2625 fps | 96.3% |
| Norma 204 | <<locked>> | 80% | 46,702 psi | 72% | 3009 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 32,706 psi | 50% | 2792 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 38,363 psi | 59% | 2907 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 47,630 psi | 73% | 3018 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,740 psi | 61% | 2933 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 46,615 psi | 72% | 3018 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 33,170 psi | 51% | 2736 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,514 psi | 44% | 1850 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,747 psi | 75% | 3054 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,963 psi | 72% | 3077 fps | 100% |
| ReloadSwiss RS 76 | 64.2 gr | 84% | 33,272 psi | 51% | 2815 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,439 psi | 67% | 3051 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 41,800 psi | 64% | 2877 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 40,030 psi | 62% | 2877 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 80% | 51,024 psi | 78% | 3038 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,879 psi | 77% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,240 psi | 74% | 2999 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,071 psi | 85% | 2953 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,747 psi | 75% | 2949 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,697 psi | 61% | 2874 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 42,598 psi | 66% | 2861 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 44,831 psi | 69% | 2969 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,495 psi | 62% | 2858 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 52,953 psi | 81% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,023 psi | 75% | 3012 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,157 psi | 54% | 2720 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 48,544 psi | 75% | 3015 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,407 psi | 61% | 2874 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 82% | 41,292 psi | 64% | 2959 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 88% | 41,684 psi | 64% | 2953 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 94% | 44,730 psi | 69% | 3064 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,211 psi | 74% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,546 psi | 78% | 3094 fps | 99.7% |
| Winchester StaBALL HD | 58.7 gr | 80% | 31,575 psi | 49% | 2818 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,072 psi | 57% | 2776 fps | 95.7% |
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 6.5 Weatherby RPM loaded with the .264 | 120gr | Swift A-Frame. Hodgdon Retumbo delivers the highest muzzle velocity at 3,399 fps; across all powders the maximum-charge window runs from 2,018 fps to 3,399 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 120.0 gr projectile in 0.264" 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. Hodgdon Retumbo, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 6.5 Weatherby RPM with the .264 | 120gr | Swift A-Frame 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.