Load Specifications
Load data in caliber 6.5 Weatherby RPM with .263 | 150gr | Rhino Solid Shank bullet and 65 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 80 and Vihtavuori N570.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 55,274 psi | 85% | 2825 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 56,782 psi | 87% | 2982 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,682 psi | 89% | 2992 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 86% | 56,579 psi | 87% | 2910 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,653 psi | 90% | 2982 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 57,058 psi | 88% | 2959 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,113 psi | 82% | 3012 fps | 98.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,317 psi | 85% | 2979 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,695 psi | 87% | 2907 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,695 psi | 87% | 2907 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,840 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,101 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 55,172 psi | 85% | 2920 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,014 psi | 88% | 2877 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,000 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,667 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,650 psi | 84% | 2999 fps | 98.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 49,879 psi | 77% | 2910 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,448 psi | 85% | 2887 fps | 98.6% |
| Bofors RP15 | <<locked>> | 92% | 58,146 psi | 89% | 2966 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,681 psi | 87% | 2972 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 55,172 psi | 85% | 2920 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 58,711 psi | 90% | 2982 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,769 psi | 89% | 2917 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,666 psi | 87% | 2900 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,811 psi | 87% | 2808 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,014 psi | 86% | 3045 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,623 psi | 58% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,172 psi | 85% | 2825 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 55,970 psi | 86% | 2828 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,073 psi | 89% | 2890 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 90% | 56,942 psi | 88% | 2966 fps | 100% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,894 psi | 78% | 2904 fps | 99.8% |
| Lovex S070 | <<locked>> | 82% | 57,406 psi | 88% | 2851 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,913 psi | 88% | 2848 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,478 psi | 87% | 2887 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,677 psi | 80% | 2923 fps | 100% |
| Norma MRP | <<locked>> | 86% | 55,071 psi | 85% | 2933 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,363 psi | 88% | 2867 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,334 psi | 90% | 2992 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,478 psi | 87% | 2884 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,507 psi | 87% | 2917 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,711 psi | 60% | 1854 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,218 psi | 90% | 2943 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,594 psi | 87% | 3031 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,028 psi | 86% | 3002 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 86% | 57,217 psi | 88% | 2877 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 86% | 55,738 psi | 86% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,406 psi | 88% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,001 psi | 89% | 2808 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,347 psi | 85% | 2884 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,465 psi | 90% | 2871 fps | 99.8% |
| Somchem S365 | <<locked>> | 82% | 55,056 psi | 85% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,101 psi | 86% | 2858 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 55,941 psi | 86% | 2844 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,740 psi | 90% | 2930 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 82% | 58,291 psi | 90% | 2867 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 55,245 psi | 85% | 2854 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,668 psi | 90% | 2999 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 92% | 55,434 psi | 85% | 2933 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 96% | 56,579 psi | 87% | 3002 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 98% | 57,812 psi | 89% | 3068 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,363 psi | 90% | 2805 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,695 psi | 87% | 2969 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 55,825 psi | 86% | 2854 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% | 42,337 psi | 65% | 2612 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 46,340 psi | 71% | 2802 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 80% | 43,627 psi | 67% | 2740 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 46,340 psi | 71% | 2740 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 41,582 psi | 64% | 2684 fps | 98.2% |
| ADI AR 2217 | <<locked>> | 82% | 33,069 psi | 51% | 2487 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 94% | 42,699 psi | 66% | 2795 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 28,413 psi | 44% | 2402 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,688 psi | 72% | 2740 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,688 psi | 72% | 2740 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,330 psi | 82% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,253 psi | 71% | 2733 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,279 psi | 65% | 2694 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,060 psi | 63% | 2628 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,491 psi | 55% | 2575 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,224 psi | 71% | 2795 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,569 psi | 67% | 2795 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 96% | 43,105 psi | 66% | 2782 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,033 psi | 66% | 2657 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 39,363 psi | 61% | 2628 fps | 98.5% |
| Bofors RP30 | <<locked>> | 80% | 33,025 psi | 51% | 2507 fps | 96% |
| Bofors RP5 | <<locked>> | 80% | 42,279 psi | 65% | 2694 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 80% | 33,605 psi | 52% | 2503 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 80% | 44,063 psi | 68% | 2680 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,410 psi | 67% | 2667 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,082 psi | 77% | 2713 fps | 100% |
| Hodgdon Retumbo | 55 gr | 80% | 34,679 psi | 53% | 2615 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,253 psi | 43% | 1617 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,967 psi | 80% | 2776 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,388 psi | 81% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,266 psi | 70% | 2674 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 80% | 40,234 psi | 62% | 2667 fps | 97.9% |
| IMR 8133 Enduron | <<locked>> | 86% | 31,647 psi | 49% | 2493 fps | 95.1% |
| Lovex S070 | <<locked>> | 80% | 54,056 psi | 83% | 2802 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,492 psi | 56% | 2493 fps | 99.5% |
| Norma 204 | <<locked>> | 80% | 52,852 psi | 81% | 2831 fps | 100% |
| Norma 217 | <<locked>> | 82% | 27,833 psi | 43% | 2402 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 44,875 psi | 69% | 2762 fps | 100% |
| Norma URP | <<locked>> | 80% | 53,954 psi | 83% | 2818 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,263 psi | 62% | 2680 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 80% | 52,924 psi | 81% | 2828 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,100 psi | 56% | 2559 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,095 psi | 45% | 1657 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,389 psi | 84% | 2890 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 33,663 psi | 52% | 2589 fps | 98.9% |
| ReloadSwiss RS 80 | 62.3 gr | 84% | 35,636 psi | 55% | 2608 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 47,152 psi | 73% | 2713 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 45,890 psi | 71% | 2726 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 54,056 psi | 83% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,360 psi | 84% | 2756 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,556 psi | 70% | 2720 fps | 99.6% |
| Somchem S361 | <<locked>> | 80% | 48,138 psi | 74% | 2707 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 51,706 psi | 80% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,282 psi | 71% | 2700 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 40,393 psi | 62% | 2582 fps | 99.2% |
| Vihtavuori N170 | <<locked>> | 90% | 47,993 psi | 74% | 2753 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 54,636 psi | 84% | 2815 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,556 psi | 70% | 2700 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,614 psi | 69% | 2759 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 80% | 37,014 psi | 57% | 2579 fps | 96.6% |
| Vihtavuori N568 | <<locked>> | 84% | 36,956 psi | 57% | 2625 fps | 95.2% |
| Vihtavuori N570 | 64.2 gr | 90% | 43,453 psi | 67% | 2805 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,476 psi | 84% | 2756 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,972 psi | 60% | 2690 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,453 psi | 65% | 2631 fps | 99.1% |
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 65 powders for 6.5 Weatherby RPM loaded with the .263 | 150gr | Rhino Solid Shank. Vihtavuori N570 delivers the highest muzzle velocity at 3,068 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,068 fps. ADI AR 2218 gives the best case fill at 100 %, and 65 of the 65 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 150.0 gr projectile in 0.263" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, 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. Hodgdon Retumbo, ReloadSwiss RS 80, Vihtavuori N570 rank at the top here: for 6.5 Weatherby RPM with the .263 | 150gr | Rhino Solid Shank 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.