Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 159gr | RWS TMR bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Alliant Reloder-33 and ADI AR 2218.
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>> | 86% | 55,680 psi | 86% | 2756 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 46,021 psi | 71% | 2726 fps | 96.8% |
| Accurate MAGPRO | <<locked>> | 86% | 58,465 psi | 90% | 2930 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 56,550 psi | 87% | 2838 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 55,158 psi | 85% | 2861 fps | 100% |
| ADI AR 2217 | <<locked>> | 96% | 58,030 psi | 89% | 2900 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 58,247 psi | 90% | 3038 fps | 99.6% |
| ADI AR 2225 | <<locked>> | 98% | 56,956 psi | 88% | 2923 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 56,927 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 56,333 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,666 psi | 86% | 2854 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 57,551 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 57,957 psi | 89% | 2884 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 58,508 psi | 90% | 2900 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 55,869 psi | 86% | 2946 fps | 99.1% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,477 psi | 85% | 2936 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 55,434 psi | 85% | 2825 fps | 99.1% |
| Bofors RP15 | <<locked>> | 90% | 58,813 psi | 90% | 2900 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 57,827 psi | 89% | 2913 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 55,666 psi | 86% | 2854 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 55,390 psi | 85% | 2861 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 57,856 psi | 89% | 2848 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,811 psi | 87% | 2831 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,101 psi | 88% | 2736 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 57,334 psi | 88% | 2979 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,000 psi | 58% | 1775 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 58,595 psi | 90% | 2802 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,972 psi | 89% | 2822 fps | 100% |
| IMR 7828 SSC | <<locked>> | 88% | 57,435 psi | 88% | 2900 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 92% | 56,637 psi | 87% | 2779 fps | 96.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 55,883 psi | 86% | 2907 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 57,508 psi | 88% | 2782 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 57,072 psi | 88% | 2923 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,738 psi | 86% | 2867 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,984 psi | 85% | 2867 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 57,305 psi | 88% | 2854 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,899 psi | 60% | 1814 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 58,233 psi | 90% | 2969 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 57,348 psi | 88% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 57,000 psi | 88% | 2808 fps | 100% |
| Rottweil R 905 | <<locked>> | 84% | 56,101 psi | 86% | 2822 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 48,211 psi | 74% | 2740 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,724 psi | 86% | 2818 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 58,363 psi | 90% | 2802 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 56,347 psi | 87% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 56,405 psi | 87% | 2782 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 55,361 psi | 85% | 2815 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 84% | 55,869 psi | 86% | 2785 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 55,158 psi | 85% | 2874 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 90% | 56,246 psi | 87% | 2871 fps | 100% |
| Vihtavuori N568 | <<locked>> | 94% | 57,754 psi | 89% | 2946 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 94% | 55,274 psi | 85% | 2953 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 58,320 psi | 90% | 2904 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,970 psi | 86% | 2789 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% | 45,687 psi | 70% | 2605 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 42,946 psi | 66% | 2667 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 80% | 47,398 psi | 73% | 2746 fps | 99% |
| ADI AR 2209 | <<locked>> | 80% | 49,777 psi | 77% | 2733 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 44,976 psi | 69% | 2687 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 80% | 33,446 psi | 51% | 2438 fps | 96.8% |
| ADI AR 2218 | 67.3 gr | 90% | 40,509 psi | 62% | 2690 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 30,908 psi | 48% | 2421 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,067 psi | 77% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,603 psi | 76% | 2726 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,730 psi | 70% | 2687 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,425 psi | 68% | 2615 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,754 psi | 60% | 2575 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,633 psi | 78% | 2789 fps | 100% |
| Alliant Reloder-33 | 65.5 gr | 86% | 38,638 psi | 59% | 2618 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 92% | 41,263 psi | 63% | 2674 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,917 psi | 66% | 2598 fps | 96.7% |
| Bofors RP15 | <<locked>> | 80% | 42,438 psi | 65% | 2625 fps | 99.5% |
| Bofors RP30 | <<locked>> | 80% | 36,172 psi | 56% | 2520 fps | 97.9% |
| Bofors RP5 | <<locked>> | 80% | 45,730 psi | 70% | 2687 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 36,419 psi | 56% | 2513 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 80% | 47,282 psi | 73% | 2677 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,630 psi | 72% | 2664 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,490 psi | 82% | 2690 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 37,855 psi | 58% | 2631 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,456 psi | 44% | 1585 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 55,288 psi | 85% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,269 psi | 74% | 2664 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 80% | 43,729 psi | 67% | 2671 fps | 99.2% |
| IMR 7977 Enduron | <<locked>> | 88% | 49,835 psi | 77% | 2667 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 82% | 30,400 psi | 47% | 2395 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 39,407 psi | 61% | 2490 fps | 100% |
| Norma 217 | <<locked>> | 80% | 28,645 psi | 44% | 2362 fps | 97% |
| Norma MRP | <<locked>> | 80% | 48,588 psi | 75% | 2756 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 44,019 psi | 68% | 2687 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 39,668 psi | 61% | 2566 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,298 psi | 45% | 1624 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,985 psi | 57% | 2602 fps | 99.9% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 33,910 psi | 52% | 2500 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 50,357 psi | 77% | 2703 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 80% | 49,168 psi | 76% | 2713 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 42,192 psi | 65% | 2625 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,820 psi | 75% | 2710 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 51,184 psi | 79% | 2694 fps | 99.6% |
| Somchem S385 | <<locked>> | 80% | 49,632 psi | 76% | 2687 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 43,511 psi | 67% | 2575 fps | 99.8% |
| Vihtavuori N170 | <<locked>> | 86% | 45,339 psi | 70% | 2641 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 80% | 49,284 psi | 76% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,153 psi | 74% | 2756 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 80% | 40,263 psi | 62% | 2589 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 80% | 35,230 psi | 54% | 2516 fps | 95.4% |
| Vihtavuori N570 | 63 gr | 86% | 41,495 psi | 64% | 2694 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,366 psi | 67% | 2687 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,643 psi | 70% | 2625 fps | 99.8% |
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 54 powders for 6.5 Weatherby RPM loaded with the .264 | 159gr | RWS TMR. ADI AR 2218 delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,038 fps. Accurate 8700 gives the best case fill at 100 %, and 54 of the 54 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 159.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2218, Alliant Reloder-50 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. Vihtavuori N570, Alliant Reloder-33, ADI AR 2218 rank at the top here: for 6.5 Weatherby RPM with the .264 | 159gr | RWS TMR 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.