Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 139gr | Norma FMJ Elektron 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, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 55,999 psi | 86% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,753 psi | 87% | 2956 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 57,841 psi | 89% | 3104 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 58,653 psi | 90% | 3107 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 88% | 57,551 psi | 89% | 3028 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 55,666 psi | 86% | 3041 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,812 psi | 89% | 3071 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,140 psi | 77% | 3045 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,141 psi | 80% | 3031 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 57,624 psi | 89% | 3022 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 57,624 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,870 psi | 89% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,956 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,043 psi | 86% | 3038 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 57,609 psi | 89% | 2995 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,537 psi | 89% | 3068 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 58,494 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,158 psi | 85% | 3104 fps | 97.9% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,565 psi | 87% | 3002 fps | 98.1% |
| Bofors RP15 | <<locked>> | 92% | 55,245 psi | 85% | 3025 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 57,174 psi | 88% | 3081 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 56,043 psi | 86% | 3038 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,117 psi | 89% | 2959 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,434 psi | 85% | 3035 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,175 psi | 89% | 3018 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,114 psi | 85% | 2972 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,841 psi | 89% | 3018 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,856 psi | 89% | 2930 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 56,376 psi | 87% | 3156 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,623 psi | 58% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,594 psi | 87% | 2949 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,000 psi | 88% | 2949 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,753 psi | 86% | 2953 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 92% | 57,827 psi | 89% | 3084 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,616 psi | 73% | 2943 fps | 99.1% |
| Lovex S065 | <<locked>> | 82% | 56,840 psi | 87% | 2920 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 58,595 psi | 90% | 2972 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,638 psi | 89% | 2959 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,754 psi | 89% | 3009 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 48,428 psi | 75% | 2972 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,130 psi | 86% | 3054 fps | 100% |
| Norma URP | <<locked>> | 84% | 58,465 psi | 90% | 2989 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 54,868 psi | 84% | 3045 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 84% | 57,580 psi | 89% | 3005 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 57,421 psi | 88% | 3035 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,450 psi | 59% | 1923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,840 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,347 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,305 psi | 88% | 3150 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 56,652 psi | 87% | 3114 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 88% | 58,320 psi | 90% | 2995 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 56,855 psi | 87% | 3009 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,117 psi | 89% | 2959 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,840 psi | 87% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 58,595 psi | 90% | 2972 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,666 psi | 86% | 2874 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,434 psi | 87% | 3005 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,970 psi | 86% | 2930 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 56,202 psi | 86% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,188 psi | 88% | 2976 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,507 psi | 87% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,927 psi | 88% | 2959 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,695 psi | 86% | 2976 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 82% | 55,666 psi | 86% | 2933 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,173 psi | 86% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,651 psi | 86% | 3058 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 55,999 psi | 86% | 3041 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 57,392 psi | 88% | 3114 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 58,305 psi | 90% | 3176 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,854 psi | 86% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,175 psi | 89% | 3018 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,174 psi | 88% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,942 psi | 88% | 2972 fps | 100% |
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% | 40,059 psi | 62% | 2661 fps | 99.6% |
| Accurate 4350 | <<locked>> | 80% | 53,011 psi | 82% | 2900 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 43,700 psi | 67% | 2848 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 80% | 41,336 psi | 64% | 2785 fps | 96.2% |
| ADI AR 2209 | <<locked>> | 80% | 44,048 psi | 68% | 2792 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 80% | 39,407 psi | 61% | 2726 fps | 96.7% |
| ADI AR 2217 | <<locked>> | 86% | 35,911 psi | 55% | 2641 fps | 95.9% |
| ADI AR 2218 | <<locked>> | 98% | 46,804 psi | 72% | 2972 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 82% | 28,674 psi | 44% | 2484 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,454 psi | 68% | 2792 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,454 psi | 68% | 2792 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,778 psi | 78% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,034 psi | 68% | 2785 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,001 psi | 62% | 2736 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,769 psi | 60% | 2684 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,460 psi | 51% | 2615 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,497 psi | 67% | 2848 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,034 psi | 68% | 2894 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 43,932 psi | 68% | 2762 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 37,246 psi | 57% | 2671 fps | 97.2% |
| Bofors RP30 | <<locked>> | 82% | 33,199 psi | 51% | 2598 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 40,001 psi | 62% | 2736 fps | 98.1% |
| Bofors RP7 | <<locked>> | 80% | 54,476 psi | 84% | 2900 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,272 psi | 53% | 2602 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 54,491 psi | 84% | 2959 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,076 psi | 65% | 2730 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,263 psi | 63% | 2717 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,703 psi | 73% | 2779 fps | 100% |
| Hodgdon Retumbo | 55.5 gr | 80% | 32,663 psi | 50% | 2641 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 43% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,763 psi | 77% | 2838 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 50,212 psi | 77% | 2844 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,308 psi | 67% | 2726 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 80% | 38,247 psi | 59% | 2710 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,026 psi | 52% | 2641 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 53,330 psi | 82% | 2867 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,779 psi | 80% | 2867 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,563 psi | 53% | 2539 fps | 98.7% |
| Norma 204 | <<locked>> | 80% | 50,343 psi | 77% | 2887 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 29,907 psi | 46% | 2546 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 42,264 psi | 65% | 2808 fps | 99.5% |
| Norma URP | <<locked>> | 80% | 51,488 psi | 79% | 2884 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,855 psi | 58% | 2713 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 80% | 50,357 psi | 77% | 2890 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,997 psi | 52% | 2595 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,950 psi | 45% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,214 psi | 82% | 2927 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,416 psi | 79% | 2949 fps | 100% |
| ReloadSwiss RS 76 | 59.4 gr | 80% | 31,734 psi | 49% | 2612 fps | 97.3% |
| ReloadSwiss RS 80 | 65.9 gr | 88% | 38,711 psi | 60% | 2769 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 45,020 psi | 69% | 2766 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 80% | 43,584 psi | 67% | 2776 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 80% | 54,476 psi | 84% | 2900 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,330 psi | 82% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,779 psi | 80% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,156 psi | 80% | 2822 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,250 psi | 67% | 2772 fps | 98.8% |
| Somchem S361 | <<locked>> | 80% | 45,919 psi | 71% | 2756 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 49,023 psi | 75% | 2838 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,034 psi | 68% | 2753 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 52,910 psi | 81% | 2874 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,348 psi | 59% | 2628 fps | 98.2% |
| Vihtavuori N170 | <<locked>> | 94% | 52,170 psi | 80% | 2917 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 52,199 psi | 80% | 2881 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,163 psi | 66% | 2759 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,134 psi | 65% | 2802 fps | 97.1% |
| Vihtavuori N565 | <<locked>> | 82% | 37,289 psi | 57% | 2674 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 88% | 40,059 psi | 62% | 2785 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 94% | 47,007 psi | 72% | 2972 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,112 psi | 80% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 54,491 psi | 84% | 2959 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,998 psi | 55% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,480 psi | 62% | 2680 fps | 98.2% |
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 | 139gr | Norma FMJ Elektron. Vihtavuori N570 delivers the highest muzzle velocity at 3,176 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,176 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 58–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for 6.5 Weatherby RPM with the .264 | 139gr | Norma FMJ Elektron 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.