Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 139gr | Norma VULKAN bullet and 69 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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 57,319 psi | 88% | 2959 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,682 psi | 89% | 2976 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 55,172 psi | 85% | 3061 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 88% | 55,854 psi | 86% | 3064 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 88% | 58,610 psi | 90% | 3048 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,695 psi | 87% | 3061 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 55,027 psi | 85% | 3031 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,474 psi | 79% | 3074 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,534 psi | 82% | 3054 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 54,998 psi | 85% | 2986 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 54,998 psi | 85% | 2986 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,085 psi | 85% | 2976 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 58,247 psi | 90% | 3038 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 57,072 psi | 88% | 3058 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,245 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,071 psi | 85% | 3035 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 55,738 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,507 psi | 87% | 3130 fps | 98.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,522 psi | 88% | 3022 fps | 98.4% |
| Bofors RP15 | <<locked>> | 92% | 56,492 psi | 87% | 3045 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,682 psi | 90% | 3107 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 57,072 psi | 88% | 3058 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,608 psi | 87% | 3058 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 56,101 psi | 86% | 2992 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,769 psi | 90% | 3035 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,303 psi | 85% | 2897 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,783 psi | 89% | 3179 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,623 psi | 58% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,334 psi | 88% | 2963 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,117 psi | 89% | 2966 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,652 psi | 87% | 2972 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 90% | 54,998 psi | 85% | 3041 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 49,037 psi | 75% | 2969 fps | 99.3% |
| Lovex S065 | <<locked>> | 82% | 57,667 psi | 89% | 2940 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 56,028 psi | 86% | 2940 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,668 psi | 90% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,798 psi | 90% | 3028 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,661 psi | 76% | 2995 fps | 100% |
| Norma MRP | <<locked>> | 88% | 57,159 psi | 88% | 3074 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,927 psi | 86% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 56,289 psi | 87% | 3068 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 58,653 psi | 90% | 3022 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,653 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,435 psi | 59% | 1929 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,986 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,478 psi | 87% | 3028 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,607 psi | 84% | 3110 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,146 psi | 89% | 3136 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 55,666 psi | 86% | 2959 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 57,928 psi | 89% | 3028 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,667 psi | 89% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,028 psi | 86% | 2940 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,695 psi | 87% | 2894 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,508 psi | 88% | 3025 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 57,043 psi | 88% | 2953 fps | 99.5% |
| Somchem S365 | <<locked>> | 84% | 57,145 psi | 88% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 58,175 psi | 89% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,363 psi | 88% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 58,146 psi | 89% | 2979 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,942 psi | 88% | 2999 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 82% | 56,710 psi | 87% | 2953 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,087 psi | 88% | 2989 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,681 psi | 87% | 3077 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 57,464 psi | 88% | 3068 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 98% | 58,552 psi | 90% | 3136 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 98% | 55,811 psi | 86% | 3136 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,826 psi | 87% | 2894 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,726 psi | 90% | 3110 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,146 psi | 89% | 2992 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% | 40,857 psi | 63% | 2680 fps | 99.8% |
| Accurate 4350 | <<locked>> | 80% | 53,969 psi | 83% | 2920 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 44,744 psi | 69% | 2867 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 80% | 42,293 psi | 65% | 2808 fps | 96.6% |
| ADI AR 2209 | <<locked>> | 80% | 44,875 psi | 69% | 2812 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 40,147 psi | 62% | 2749 fps | 97.1% |
| ADI AR 2217 | <<locked>> | 84% | 34,330 psi | 53% | 2602 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 47,877 psi | 74% | 2999 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 27,383 psi | 42% | 2444 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,237 psi | 70% | 2812 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,237 psi | 70% | 2812 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,750 psi | 80% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,817 psi | 69% | 2805 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,785 psi | 63% | 2756 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,624 psi | 61% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,185 psi | 53% | 2631 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,425 psi | 68% | 2867 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 45,266 psi | 70% | 2923 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,599 psi | 69% | 2782 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 38,029 psi | 59% | 2690 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 33,953 psi | 52% | 2621 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 40,785 psi | 63% | 2756 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 80% | 32,590 psi | 50% | 2559 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 80% | 42,801 psi | 66% | 2749 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,003 psi | 65% | 2733 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,617 psi | 75% | 2795 fps | 100% |
| Hodgdon Retumbo | 56.5 gr | 80% | 33,388 psi | 51% | 2664 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 43% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,546 psi | 78% | 2854 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 51,097 psi | 79% | 2861 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,019 psi | 68% | 2743 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 39,015 psi | 60% | 2733 fps | 96.8% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,896 psi | 54% | 2664 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 54,186 psi | 83% | 2887 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,620 psi | 81% | 2884 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,360 psi | 54% | 2559 fps | 98.9% |
| Norma 204 | <<locked>> | 80% | 51,416 psi | 79% | 2910 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 28,543 psi | 44% | 2503 fps | 95% |
| Norma MRP | <<locked>> | 80% | 43,308 psi | 67% | 2831 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 52,373 psi | 81% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,827 psi | 60% | 2740 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 80% | 51,416 psi | 79% | 2910 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,722 psi | 53% | 2615 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 44% | 1726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 54,085 psi | 83% | 2943 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,591 psi | 81% | 2969 fps | 100% |
| ReloadSwiss RS 76 | 60.5 gr | 80% | 32,518 psi | 50% | 2638 fps | 97.7% |
| ReloadSwiss RS 80 | 65.6 gr | 86% | 36,927 psi | 57% | 2726 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 45,818 psi | 70% | 2785 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 44,425 psi | 68% | 2795 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,186 psi | 83% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,620 psi | 81% | 2884 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,910 psi | 81% | 2838 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,077 psi | 68% | 2792 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 46,760 psi | 72% | 2776 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 49,995 psi | 77% | 2854 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,802 psi | 69% | 2769 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 53,780 psi | 83% | 2890 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,088 psi | 60% | 2644 fps | 98.4% |
| Vihtavuori N170 | <<locked>> | 92% | 49,879 psi | 77% | 2877 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 53,040 psi | 82% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,092 psi | 68% | 2779 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,120 psi | 66% | 2825 fps | 97.4% |
| Vihtavuori N565 | <<locked>> | 80% | 35,737 psi | 55% | 2638 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 88% | 41,133 psi | 63% | 2812 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 92% | 44,976 psi | 69% | 2930 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,098 psi | 82% | 2841 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,231 psi | 57% | 2756 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,220 psi | 63% | 2700 fps | 98.4% |
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 69 powders for 6.5 Weatherby RPM loaded with the .264 | 139gr | Norma VULKAN. Hodgdon Retumbo delivers the highest muzzle velocity at 3,179 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,179 fps. ADI AR 2218 gives the best case fill at 100 %, and 69 of the 69 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 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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 VULKAN 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.