Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 139gr | Norma Semi Soft Point bullet and 72 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 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>> | 90% | 56,449 psi | 87% | 2943 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,971 psi | 88% | 2963 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 58,320 psi | 90% | 3110 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 55,288 psi | 85% | 3054 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 88% | 58,001 psi | 89% | 3035 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,130 psi | 86% | 3051 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,233 psi | 90% | 3081 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,691 psi | 78% | 3054 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,576 psi | 81% | 3041 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 58,059 psi | 89% | 3031 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,146 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,406 psi | 88% | 3022 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,507 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,102 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,015 psi | 89% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 54,795 psi | 84% | 3038 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,506 psi | 85% | 3110 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,652 psi | 87% | 3005 fps | 98.2% |
| Bofors RP15 | <<locked>> | 92% | 55,695 psi | 86% | 3031 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 57,609 psi | 89% | 3091 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 56,507 psi | 87% | 3045 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,349 psi | 90% | 2963 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,854 psi | 86% | 3041 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,363 psi | 90% | 3022 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,564 psi | 85% | 2982 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,247 psi | 90% | 3025 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,349 psi | 90% | 2936 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 56,855 psi | 87% | 3163 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,565 psi | 58% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,768 psi | 87% | 2953 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,188 psi | 88% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,144 psi | 86% | 2963 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 58,291 psi | 90% | 3094 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,037 psi | 74% | 2953 fps | 99.2% |
| Lovex S065 | <<locked>> | 82% | 57,029 psi | 88% | 2927 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,434 psi | 85% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,798 psi | 89% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,972 psi | 89% | 3012 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 48,863 psi | 75% | 2979 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,565 psi | 87% | 3064 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,245 psi | 85% | 2943 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,361 psi | 85% | 3054 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 57,798 psi | 89% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 57,856 psi | 89% | 3041 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,392 psi | 59% | 1923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,348 psi | 88% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,550 psi | 85% | 3015 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,783 psi | 89% | 3156 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 57,087 psi | 88% | 3120 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 88% | 58,508 psi | 90% | 2999 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 57,043 psi | 88% | 3015 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,349 psi | 90% | 2963 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,029 psi | 88% | 2927 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,434 psi | 85% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,144 psi | 86% | 2881 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,652 psi | 87% | 3009 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,376 psi | 87% | 2936 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 56,449 psi | 87% | 2946 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,609 psi | 89% | 2986 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,710 psi | 87% | 2933 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,377 psi | 88% | 2969 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,347 psi | 87% | 2986 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 82% | 56,115 psi | 86% | 2940 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,405 psi | 87% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,101 psi | 86% | 3064 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 56,434 psi | 87% | 3048 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 98% | 57,812 psi | 89% | 3123 fps | 99.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 58,697 psi | 90% | 3182 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,275 psi | 87% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,639 psi | 90% | 3025 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,725 psi | 89% | 3097 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,334 psi | 88% | 2979 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% | 40,277 psi | 62% | 2667 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 53,243 psi | 82% | 2907 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 44,150 psi | 68% | 2854 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 80% | 41,495 psi | 64% | 2789 fps | 96.3% |
| ADI AR 2209 | <<locked>> | 80% | 44,251 psi | 68% | 2799 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 80% | 39,610 psi | 61% | 2733 fps | 96.9% |
| ADI AR 2217 | <<locked>> | 84% | 33,852 psi | 52% | 2589 fps | 95% |
| ADI AR 2218 | <<locked>> | 98% | 47,094 psi | 72% | 2976 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 82% | 28,834 psi | 44% | 2493 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,657 psi | 69% | 2799 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,024 psi | 78% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,237 psi | 68% | 2792 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,234 psi | 62% | 2743 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,015 psi | 60% | 2687 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,663 psi | 52% | 2618 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,743 psi | 67% | 2854 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,411 psi | 68% | 2904 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,222 psi | 68% | 2769 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 37,449 psi | 58% | 2677 fps | 97.4% |
| Bofors RP30 | <<locked>> | 82% | 33,402 psi | 51% | 2605 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 40,234 psi | 62% | 2743 fps | 98.2% |
| Bofors RP7 | <<locked>> | 80% | 54,679 psi | 84% | 2907 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,403 psi | 53% | 2608 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 54,708 psi | 84% | 2966 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,279 psi | 65% | 2736 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,452 psi | 64% | 2720 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,964 psi | 74% | 2785 fps | 100% |
| Hodgdon Retumbo | 55.8 gr | 80% | 32,866 psi | 51% | 2648 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 43% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,980 psi | 77% | 2841 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 50,444 psi | 78% | 2851 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,497 psi | 67% | 2730 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 80% | 38,435 psi | 59% | 2717 fps | 96.6% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,229 psi | 53% | 2648 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 53,548 psi | 82% | 2874 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,011 psi | 80% | 2871 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,780 psi | 54% | 2543 fps | 98.8% |
| Norma 204 | <<locked>> | 80% | 50,792 psi | 78% | 2897 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 30,081 psi | 46% | 2552 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 42,699 psi | 66% | 2818 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 51,692 psi | 80% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,261 psi | 59% | 2726 fps | 97% |
| Ramshot Hunter | <<locked>> | 80% | 50,807 psi | 78% | 2900 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,185 psi | 53% | 2598 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,935 psi | 45% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,447 psi | 82% | 2933 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,909 psi | 80% | 2959 fps | 100% |
| ReloadSwiss RS 76 | 59.8 gr | 80% | 32,053 psi | 49% | 2625 fps | 97.5% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 39,088 psi | 60% | 2779 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 45,455 psi | 70% | 2776 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 80% | 43,816 psi | 67% | 2782 fps | 99% |
| Rottweil R 907 | <<locked>> | 80% | 54,679 psi | 84% | 2907 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,548 psi | 82% | 2874 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,011 psi | 80% | 2871 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,562 psi | 81% | 2828 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,482 psi | 67% | 2776 fps | 98.9% |
| Somchem S361 | <<locked>> | 80% | 46,282 psi | 71% | 2762 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 49,298 psi | 76% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,237 psi | 68% | 2756 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 53,142 psi | 82% | 2881 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,537 psi | 59% | 2631 fps | 98.3% |
| Vihtavuori N170 | <<locked>> | 94% | 52,518 psi | 81% | 2923 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 52,649 psi | 81% | 2890 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,627 psi | 67% | 2769 fps | 100% |
| Vihtavuori N560 | 58 gr | 80% | 42,511 psi | 65% | 2812 fps | 97.2% |
| Vihtavuori N565 | <<locked>> | 80% | 35,201 psi | 54% | 2625 fps | 95% |
| Vihtavuori N568 | <<locked>> | 88% | 40,437 psi | 62% | 2795 fps | 95.6% |
| Vihtavuori N570 | <<locked>> | 94% | 47,398 psi | 73% | 2979 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,562 psi | 81% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 54,969 psi | 85% | 2969 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,492 psi | 56% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,683 psi | 63% | 2687 fps | 98.3% |
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 72 powders for 6.5 Weatherby RPM loaded with the .264 | 139gr | Norma Semi Soft Point. Vihtavuori N570 delivers the highest muzzle velocity at 3,182 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,182 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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, Vihtavuori N560 rank at the top here: for 6.5 Weatherby RPM with the .264 | 139gr | Norma Semi Soft Point 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.