Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 142gr | SUS-TAC HPT bullet and 76 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 Accurate MAGPRO.
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% | 57,450 psi | 88% | 2920 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 58,523 psi | 90% | 2943 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 55,332 psi | 85% | 3025 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 56,434 psi | 87% | 3035 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 55,506 psi | 85% | 2959 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 57,261 psi | 88% | 3028 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,317 psi | 85% | 2995 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,588 psi | 76% | 2956 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,680 psi | 86% | 2956 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,680 psi | 86% | 2956 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,883 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 58,624 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,493 psi | 88% | 3022 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,245 psi | 85% | 2927 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 58,682 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,956 psi | 86% | 3022 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 3022 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 58,102 psi | 89% | 2986 fps | 98.3% |
| Bofors RP15 | <<locked>> | 94% | 56,652 psi | 87% | 3009 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 58,508 psi | 90% | 3068 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 57,493 psi | 88% | 3022 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 56,362 psi | 87% | 2890 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,869 psi | 87% | 3018 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 56,188 psi | 86% | 2949 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 58,523 psi | 90% | 2959 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,942 psi | 88% | 2966 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,796 psi | 86% | 2946 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 56,057 psi | 86% | 2867 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,522 psi | 88% | 3140 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,666 psi | 87% | 2986 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,434 psi | 58% | 1837 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 58,233 psi | 90% | 2933 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,537 psi | 89% | 2907 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 58,552 psi | 90% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,464 psi | 88% | 2940 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 55,332 psi | 85% | 3009 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,368 psi | 70% | 2871 fps | 98.7% |
| Lovex S065 | <<locked>> | 84% | 58,566 psi | 90% | 2907 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,927 psi | 88% | 2910 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 55,187 psi | 85% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,767 psi | 86% | 2940 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 45,759 psi | 70% | 2897 fps | 99.9% |
| Norma MRP | <<locked>> | 90% | 57,566 psi | 89% | 3041 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,666 psi | 87% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,159 psi | 86% | 3028 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 55,564 psi | 85% | 2936 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,708 psi | 84% | 2959 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 59% | 1880 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 58,523 psi | 90% | 2969 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 57,087 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 58,740 psi | 90% | 3140 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 58,001 psi | 89% | 3100 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 88% | 56,391 psi | 87% | 2927 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 90% | 58,479 psi | 90% | 2995 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 56,362 psi | 87% | 2890 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 58,566 psi | 90% | 2907 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,927 psi | 88% | 2910 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,638 psi | 89% | 2861 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 58,044 psi | 89% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 57,943 psi | 89% | 2920 fps | 99.5% |
| Somchem S365 | <<locked>> | 86% | 57,711 psi | 89% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,998 psi | 85% | 2907 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 58,668 psi | 90% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 58,320 psi | 90% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 58,653 psi | 90% | 2946 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 57,392 psi | 88% | 2966 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 84% | 57,479 psi | 88% | 2923 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,551 psi | 89% | 2959 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,174 psi | 88% | 3045 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 96% | 57,479 psi | 88% | 3028 fps | 99.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 58,523 psi | 90% | 3097 fps | 99.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 55,245 psi | 85% | 3091 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,783 psi | 89% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,188 psi | 86% | 2949 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 58,262 psi | 90% | 3074 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 58,740 psi | 90% | 2959 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% | 38,595 psi | 59% | 2598 fps | 99.5% |
| Accurate 4350 | <<locked>> | 80% | 51,227 psi | 79% | 2838 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 42,047 psi | 65% | 2779 fps | 97.7% |
| Accurate MAGPRO | 55.8 gr | 80% | 39,610 psi | 61% | 2713 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 42,554 psi | 65% | 2730 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 37,898 psi | 58% | 2657 fps | 96.2% |
| ADI AR 2217 | <<locked>> | 86% | 34,563 psi | 53% | 2575 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 82% | 27,572 psi | 42% | 2421 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,975 psi | 66% | 2730 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,975 psi | 66% | 2730 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,907 psi | 75% | 2841 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,583 psi | 66% | 2723 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,377 psi | 59% | 2671 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,159 psi | 57% | 2621 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,184 psi | 50% | 2549 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,336 psi | 64% | 2779 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 44,933 psi | 69% | 2884 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 45,426 psi | 70% | 2759 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 35,810 psi | 55% | 2608 fps | 96.8% |
| Bofors RP30 | <<locked>> | 84% | 33,939 psi | 52% | 2592 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 38,377 psi | 59% | 2671 fps | 97.7% |
| Bofors RP7 | <<locked>> | 80% | 52,910 psi | 81% | 2835 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 32,851 psi | 51% | 2533 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 52,446 psi | 81% | 2890 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 54,708 psi | 84% | 2900 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 40,553 psi | 62% | 2667 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,726 psi | 61% | 2648 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,195 psi | 71% | 2720 fps | 100% |
| Hodgdon Retumbo | 52.8 gr | 80% | 31,459 psi | 48% | 2575 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 52,837 psi | 81% | 2927 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 43% | 1644 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,312 psi | 74% | 2772 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,085 psi | 83% | 2854 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,327 psi | 74% | 2779 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,003 psi | 65% | 2664 fps | 97% |
| IMR 7828 SSC | <<locked>> | 80% | 36,709 psi | 56% | 2641 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 92% | 34,534 psi | 53% | 2628 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 51,750 psi | 80% | 2805 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,227 psi | 77% | 2802 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,214 psi | 51% | 2477 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 48,733 psi | 75% | 2822 fps | 99.4% |
| Norma 217 | <<locked>> | 86% | 28,500 psi | 44% | 2477 fps | 95% |
| Norma MRP | <<locked>> | 80% | 40,582 psi | 62% | 2746 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 49,806 psi | 77% | 2822 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,332 psi | 56% | 2648 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 80% | 48,704 psi | 75% | 2828 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,503 psi | 50% | 2530 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,732 psi | 44% | 1680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,213 psi | 79% | 2861 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,458 psi | 76% | 2884 fps | 100% |
| ReloadSwiss RS 76 | 56.5 gr | 80% | 30,458 psi | 47% | 2546 fps | 96.6% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 39,479 psi | 61% | 2762 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 43,598 psi | 67% | 2700 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 80% | 42,061 psi | 65% | 2710 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 80% | 52,910 psi | 81% | 2835 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,750 psi | 80% | 2805 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,227 psi | 77% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,734 psi | 78% | 2759 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,713 psi | 64% | 2707 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 44,440 psi | 68% | 2690 fps | 97.4% |
| Somchem S365 | <<locked>> | 80% | 47,253 psi | 73% | 2776 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,409 psi | 65% | 2687 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 55,042 psi | 85% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 51,314 psi | 79% | 2815 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,028 psi | 57% | 2566 fps | 97.8% |
| Vihtavuori N170 | <<locked>> | 96% | 53,548 psi | 82% | 2904 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 50,502 psi | 78% | 2818 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,481 psi | 64% | 2697 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,538 psi | 62% | 2733 fps | 96.6% |
| Vihtavuori N565 | <<locked>> | 82% | 35,665 psi | 55% | 2608 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 90% | 40,930 psi | 63% | 2776 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 96% | 47,964 psi | 74% | 2959 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,488 psi | 78% | 2766 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,692 psi | 81% | 2894 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 34,055 psi | 52% | 2667 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,001 psi | 60% | 2618 fps | 97.8% |
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 76 powders for 6.5 Weatherby RPM loaded with the .264 | 142gr | SUS-TAC HPT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,140 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 142.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, 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, Accurate MAGPRO rank at the top here: for 6.5 Weatherby RPM with the .264 | 142gr | SUS-TAC HPT 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.