Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 140gr | Speer TBBC 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 Winchester StaBALL HD.
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% | 55,347 psi | 85% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,130 psi | 86% | 2936 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 58,059 psi | 89% | 3084 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 56,826 psi | 87% | 3005 fps | 100% |
| ADI AR 2213 | <<locked>> | 92% | 58,711 psi | 90% | 3077 fps | 99.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,029 psi | 88% | 3048 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,385 psi | 76% | 3012 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,416 psi | 79% | 3012 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,305 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,565 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,390 psi | 85% | 3015 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,884 psi | 88% | 2972 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 56,608 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,522 psi | 88% | 3068 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 3077 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,941 psi | 86% | 2979 fps | 98% |
| Bofors RP15 | <<locked>> | 94% | 58,117 psi | 89% | 3058 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,318 psi | 87% | 3058 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 55,390 psi | 85% | 3015 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,595 psi | 89% | 2936 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 58,668 psi | 90% | 3071 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,363 psi | 88% | 2992 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 58,334 psi | 90% | 3012 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,203 psi | 88% | 2995 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,334 psi | 88% | 2910 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,521 psi | 85% | 3130 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 58,204 psi | 90% | 3031 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 58% | 1867 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,840 psi | 86% | 2923 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 58,755 psi | 90% | 2953 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,478 psi | 87% | 2930 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 58,813 psi | 90% | 2989 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 92% | 56,884 psi | 88% | 3058 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,862 psi | 72% | 2920 fps | 99% |
| Lovex S065 | <<locked>> | 82% | 56,318 psi | 87% | 2900 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 58,102 psi | 89% | 2953 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,724 psi | 87% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,087 psi | 88% | 2986 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,616 psi | 73% | 2949 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,434 psi | 85% | 3035 fps | 100% |
| Norma URP | <<locked>> | 84% | 57,914 psi | 89% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 58,030 psi | 89% | 3081 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 56,898 psi | 88% | 2982 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,579 psi | 87% | 3012 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,377 psi | 59% | 1906 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,086 psi | 86% | 2959 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 58,769 psi | 90% | 3048 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,231 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,724 psi | 86% | 3087 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 57,667 psi | 89% | 2972 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 56,130 psi | 86% | 2986 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,595 psi | 89% | 2936 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,318 psi | 87% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 58,102 psi | 89% | 2953 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,172 psi | 85% | 2854 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,753 psi | 86% | 2982 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,477 psi | 85% | 2907 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 55,361 psi | 85% | 2920 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,521 psi | 87% | 2953 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,999 psi | 86% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,347 psi | 87% | 2940 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,071 psi | 85% | 2953 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 82% | 55,187 psi | 85% | 2913 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,419 psi | 85% | 2949 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,027 psi | 85% | 3035 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 94% | 55,448 psi | 85% | 3022 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 56,391 psi | 87% | 3087 fps | 99.1% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,566 psi | 89% | 3153 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,230 psi | 85% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,667 psi | 89% | 2995 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,072 psi | 86% | 3064 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,333 psi | 87% | 2953 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% | 39,552 psi | 61% | 2641 fps | 99.6% |
| Accurate 4350 | <<locked>> | 80% | 52,388 psi | 81% | 2881 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 40,640 psi | 63% | 2759 fps | 96% |
| ADI AR 2209 | <<locked>> | 80% | 43,526 psi | 67% | 2769 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 80% | 38,957 psi | 60% | 2707 fps | 96.6% |
| ADI AR 2217 | <<locked>> | 86% | 35,563 psi | 55% | 2621 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 98% | 46,050 psi | 71% | 2940 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 82% | 28,326 psi | 44% | 2467 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,125 psi | 77% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,540 psi | 67% | 2762 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,494 psi | 61% | 2717 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,218 psi | 59% | 2661 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,011 psi | 51% | 2592 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,786 psi | 66% | 2825 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 46,572 psi | 72% | 2936 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 46,427 psi | 71% | 2802 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 36,753 psi | 57% | 2651 fps | 97.1% |
| Bofors RP30 | <<locked>> | 84% | 34,998 psi | 54% | 2638 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 39,494 psi | 61% | 2717 fps | 98% |
| Bofors RP7 | <<locked>> | 80% | 53,911 psi | 83% | 2877 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 33,707 psi | 52% | 2575 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 53,708 psi | 83% | 2936 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,611 psi | 64% | 2710 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,814 psi | 63% | 2694 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,355 psi | 73% | 2762 fps | 100% |
| Hodgdon Retumbo | 54.6 gr | 80% | 32,256 psi | 50% | 2618 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 54,099 psi | 83% | 2969 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,137 psi | 43% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,240 psi | 76% | 2815 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 55,317 psi | 85% | 2900 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 49,647 psi | 76% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,859 psi | 66% | 2703 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 80% | 37,768 psi | 58% | 2687 fps | 96.3% |
| IMR 8133 Enduron | <<locked>> | 90% | 33,518 psi | 52% | 2618 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 52,779 psi | 81% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,227 psi | 79% | 2848 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,229 psi | 53% | 2520 fps | 98.6% |
| Norma 204 | <<locked>> | 80% | 49,893 psi | 77% | 2867 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 29,370 psi | 45% | 2523 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 41,742 psi | 64% | 2789 fps | 99.4% |
| Norma URP | <<locked>> | 80% | 50,894 psi | 78% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,405 psi | 58% | 2694 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 80% | 49,864 psi | 77% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,460 psi | 51% | 2572 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,921 psi | 44% | 1709 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,431 psi | 81% | 2904 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,923 psi | 78% | 2933 fps | 100% |
| ReloadSwiss RS 76 | 58.5 gr | 80% | 31,401 psi | 48% | 2592 fps | 97.1% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 38,043 psi | 59% | 2746 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 44,773 psi | 69% | 2749 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 80% | 43,047 psi | 66% | 2753 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 80% | 53,911 psi | 83% | 2877 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,779 psi | 81% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,227 psi | 79% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,648 psi | 79% | 2799 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,743 psi | 66% | 2749 fps | 98.7% |
| Somchem S361 | <<locked>> | 80% | 45,542 psi | 70% | 2736 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 48,399 psi | 74% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,526 psi | 67% | 2730 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 52,359 psi | 81% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,898 psi | 58% | 2605 fps | 98.1% |
| Vihtavuori N170 | <<locked>> | 94% | 51,503 psi | 79% | 2890 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 51,692 psi | 80% | 2861 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,801 psi | 66% | 2743 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,640 psi | 64% | 2779 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 82% | 36,854 psi | 57% | 2654 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 88% | 39,537 psi | 61% | 2762 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 94% | 46,253 psi | 71% | 2946 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,750 psi | 80% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,940 psi | 83% | 2940 fps | 100% |
| Winchester StaBALL HD | 56.1 gr | 80% | 35,433 psi | 55% | 2713 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,059 psi | 62% | 2661 fps | 98.1% |
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 78 powders for 6.5 Weatherby RPM loaded with the .264 | 140gr | Speer TBBC. Vihtavuori N570 delivers the highest muzzle velocity at 3,153 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,153 fps. Accurate 8700 gives the best case fill at 100 %, and 78 of the 78 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 140.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2217, ADI AR 2218 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, Winchester StaBALL HD rank at the top here: for 6.5 Weatherby RPM with the .264 | 140gr | Speer TBBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, Alliant Reloder-50, IMR 7977 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.