Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 155gr | CutEdge DGSC bullet and 68 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N570 and ReloadSwiss RS 80.
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% | 58,392 psi | 90% | 2825 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 56,536 psi | 87% | 2936 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,551 psi | 89% | 2946 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 86% | 56,130 psi | 86% | 2861 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,349 psi | 90% | 2936 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 56,855 psi | 87% | 2917 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2972 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,100 psi | 85% | 2933 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,521 psi | 87% | 2864 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,521 psi | 87% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,594 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 55,912 psi | 86% | 2854 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 58,552 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,492 psi | 87% | 2828 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,637 psi | 87% | 2904 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,174 psi | 88% | 2923 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 58,494 psi | 90% | 3018 fps | 99.2% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 49,400 psi | 76% | 2867 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,259 psi | 85% | 2848 fps | 98.7% |
| Bofors RP15 | <<locked>> | 92% | 58,001 psi | 89% | 2920 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,231 psi | 87% | 2923 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 58,552 psi | 90% | 2927 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 58,523 psi | 90% | 2936 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,696 psi | 89% | 2874 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,565 psi | 87% | 2858 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,739 psi | 87% | 2766 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,767 psi | 86% | 2995 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,565 psi | 58% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,639 psi | 90% | 2835 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 55,521 psi | 85% | 2782 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,957 psi | 89% | 2848 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 90% | 56,594 psi | 87% | 2920 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 94% | 56,405 psi | 87% | 2795 fps | 95.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,473 psi | 78% | 2854 fps | 99.9% |
| Lovex S065 | <<locked>> | 82% | 58,523 psi | 90% | 2802 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,217 psi | 88% | 2808 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,101 psi | 86% | 2795 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,275 psi | 87% | 2844 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,242 psi | 79% | 2877 fps | 100% |
| Norma MRP | <<locked>> | 86% | 54,868 psi | 84% | 2890 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,261 psi | 88% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,001 psi | 89% | 2946 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,217 psi | 86% | 2838 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,159 psi | 86% | 2874 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,624 psi | 59% | 1821 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,117 psi | 89% | 2897 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,405 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,738 psi | 86% | 2959 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 86% | 56,768 psi | 87% | 2835 fps | 100% |
| Rottweil R 905 | <<locked>> | 86% | 55,434 psi | 85% | 2844 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,523 psi | 90% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,217 psi | 88% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,609 psi | 89% | 2762 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,042 psi | 85% | 2841 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,334 psi | 90% | 2831 fps | 99.9% |
| Somchem S365 | <<locked>> | 84% | 58,610 psi | 90% | 2822 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,724 psi | 86% | 2812 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 55,709 psi | 86% | 2802 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,334 psi | 90% | 2887 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 82% | 57,928 psi | 89% | 2818 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 58,581 psi | 90% | 2858 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,276 psi | 90% | 2953 fps | 100% |
| Vihtavuori N565 | <<locked>> | 94% | 58,755 psi | 90% | 2943 fps | 100% |
| Vihtavuori N568 | <<locked>> | 96% | 56,246 psi | 87% | 2956 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 98% | 57,595 psi | 89% | 3025 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,233 psi | 90% | 2762 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,478 psi | 87% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 55,622 psi | 86% | 2815 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% | 41,510 psi | 64% | 2562 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 45,905 psi | 71% | 2756 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 80% | 43,178 psi | 66% | 2694 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 80% | 45,977 psi | 71% | 2697 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 41,205 psi | 63% | 2644 fps | 98.3% |
| ADI AR 2217 | <<locked>> | 82% | 32,721 psi | 50% | 2448 fps | 95.9% |
| ADI AR 2218 | <<locked>> | 94% | 42,308 psi | 65% | 2756 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 27,775 psi | 43% | 2352 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,296 psi | 71% | 2697 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,296 psi | 71% | 2697 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,055 psi | 82% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,861 psi | 71% | 2690 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,829 psi | 64% | 2644 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,524 psi | 62% | 2582 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,954 psi | 54% | 2526 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,803 psi | 70% | 2749 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,105 psi | 66% | 2749 fps | 96.1% |
| Alliant Reloder-50 | <<locked>> | 96% | 42,235 psi | 65% | 2730 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 40,001 psi | 62% | 2559 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 38,856 psi | 60% | 2582 fps | 98.6% |
| Bofors RP30 | <<locked>> | 80% | 32,387 psi | 50% | 2457 fps | 96% |
| Bofors RP5 | <<locked>> | 80% | 41,829 psi | 64% | 2644 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 33,098 psi | 51% | 2461 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 80% | 43,685 psi | 67% | 2638 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,047 psi | 66% | 2625 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,603 psi | 76% | 2667 fps | 100% |
| Hodgdon Retumbo | 54.5 gr | 80% | 34,142 psi | 53% | 2569 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,282 psi | 44% | 1591 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,634 psi | 79% | 2730 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 51,895 psi | 80% | 2730 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,918 psi | 69% | 2631 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 80% | 39,827 psi | 61% | 2621 fps | 98.1% |
| IMR 7977 Enduron | <<locked>> | 92% | 52,968 psi | 81% | 2743 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 86% | 31,024 psi | 48% | 2444 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 55,085 psi | 85% | 2753 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,548 psi | 82% | 2756 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,781 psi | 55% | 2448 fps | 99.6% |
| Norma 204 | <<locked>> | 80% | 52,576 psi | 81% | 2789 fps | 100% |
| Norma 217 | <<locked>> | 82% | 27,079 psi | 42% | 2349 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 44,411 psi | 68% | 2717 fps | 100% |
| Norma URP | <<locked>> | 80% | 53,519 psi | 82% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,856 psi | 61% | 2635 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 80% | 52,576 psi | 81% | 2782 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,578 psi | 55% | 2513 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 44% | 1627 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,925 psi | 83% | 2841 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 33,112 psi | 51% | 2539 fps | 99% |
| ReloadSwiss RS 80 | 61.7 gr | 84% | 34,940 psi | 54% | 2556 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 46,775 psi | 72% | 2667 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 45,411 psi | 70% | 2677 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,085 psi | 85% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,548 psi | 82% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,896 psi | 83% | 2710 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,078 psi | 69% | 2674 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 47,558 psi | 73% | 2661 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 51,198 psi | 79% | 2723 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,730 psi | 70% | 2654 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 39,914 psi | 61% | 2536 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 90% | 47,413 psi | 73% | 2707 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 54,230 psi | 83% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,904 psi | 69% | 2654 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,208 psi | 68% | 2713 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 80% | 36,347 psi | 56% | 2533 fps | 96.7% |
| Vihtavuori N568 | <<locked>> | 84% | 36,477 psi | 56% | 2579 fps | 95.4% |
| Vihtavuori N570 | 63.6 gr | 90% | 42,960 psi | 66% | 2756 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,259 psi | 83% | 2713 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,435 psi | 59% | 2641 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,032 psi | 65% | 2589 fps | 99.2% |
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 68 powders for 6.5 Weatherby RPM loaded with the .264 | 155gr | CutEdge DGSC. Vihtavuori N570 delivers the highest muzzle velocity at 3,025 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,025 fps. ADI AR 2218 gives the best case fill at 100 %, and 68 of the 68 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 155.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, 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, Vihtavuori N570, ReloadSwiss RS 80 rank at the top here: for 6.5 Weatherby RPM with the .264 | 155gr | CutEdge DGSC 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.