Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 127gr | RWS Kegelspitz bullet and 74 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% | 57,740 psi | 89% | 3087 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 58,523 psi | 90% | 3114 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 55,637 psi | 86% | 3192 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 90% | 56,478 psi | 87% | 3196 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 88% | 55,579 psi | 86% | 3123 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 57,406 psi | 88% | 3196 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,477 psi | 85% | 3156 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 50,053 psi | 77% | 3117 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,666 psi | 86% | 3117 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,637 psi | 86% | 3114 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 55,042 psi | 85% | 3110 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,638 psi | 89% | 3186 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,535 psi | 85% | 3097 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 55,216 psi | 85% | 3166 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,869 psi | 86% | 3186 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 52,576 psi | 81% | 3176 fps | 96.5% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 58,436 psi | 90% | 3150 fps | 97.8% |
| Bofors RP15 | <<locked>> | 94% | 56,797 psi | 87% | 3173 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 55,042 psi | 85% | 3169 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 57,638 psi | 89% | 3186 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 56,318 psi | 87% | 3058 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 57,043 psi | 88% | 3182 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 56,159 psi | 86% | 3114 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 58,421 psi | 90% | 3127 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 57,000 psi | 88% | 3127 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,927 psi | 86% | 3110 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,883 psi | 86% | 3031 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,798 psi | 89% | 3307 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,797 psi | 87% | 3153 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,420 psi | 58% | 1972 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 58,305 psi | 90% | 3100 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,696 psi | 89% | 3077 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 58,668 psi | 90% | 3100 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,522 psi | 88% | 3100 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 55,550 psi | 85% | 3173 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,411 psi | 70% | 3015 fps | 98.1% |
| Lovex S065 | <<locked>> | 84% | 58,566 psi | 90% | 3074 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,826 psi | 87% | 3074 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 55,361 psi | 85% | 3051 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,651 psi | 86% | 3100 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 45,977 psi | 71% | 3045 fps | 99.6% |
| Norma MRP | <<locked>> | 90% | 57,885 psi | 89% | 3209 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,536 psi | 87% | 3091 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,565 psi | 87% | 3196 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 55,477 psi | 85% | 3100 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,868 psi | 84% | 3120 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,377 psi | 59% | 2018 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 58,813 psi | 90% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 57,159 psi | 88% | 3169 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 54,665 psi | 84% | 3235 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 58,305 psi | 90% | 3261 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 88% | 56,550 psi | 87% | 3094 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 90% | 58,566 psi | 90% | 3163 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 56,318 psi | 87% | 3058 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 58,566 psi | 90% | 3074 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,826 psi | 87% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,609 psi | 89% | 3028 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 58,146 psi | 89% | 3156 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 57,972 psi | 89% | 3081 fps | 99.1% |
| Somchem S365 | <<locked>> | 86% | 57,740 psi | 89% | 3097 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 55,172 psi | 85% | 3068 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 58,552 psi | 90% | 3009 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 58,320 psi | 90% | 3084 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 58,668 psi | 90% | 3107 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 57,508 psi | 88% | 3087 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,508 psi | 88% | 3123 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,464 psi | 88% | 3209 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 96% | 57,740 psi | 89% | 3192 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 98% | 54,882 psi | 84% | 3196 fps | 98.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 55,811 psi | 86% | 3251 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,769 psi | 89% | 3031 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,434 psi | 87% | 3120 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 58,479 psi | 90% | 3241 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,984 psi | 85% | 3064 fps | 99.7% |
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% | 38,609 psi | 59% | 2740 fps | 99% |
| Accurate 4350 | <<locked>> | 80% | 51,213 psi | 79% | 3002 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 41,872 psi | 64% | 2920 fps | 96.8% |
| Accurate MAGPRO | 62.1 gr | 82% | 42,627 psi | 66% | 2923 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 42,366 psi | 65% | 2871 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 80% | 38,014 psi | 58% | 2802 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 88% | 37,014 psi | 57% | 2772 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 86% | 31,430 psi | 48% | 2667 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,004 psi | 66% | 2877 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,907 psi | 75% | 3005 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,612 psi | 66% | 2871 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,479 psi | 59% | 2812 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,130 psi | 57% | 2762 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,053 psi | 49% | 2677 fps | 98.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,350 psi | 64% | 2927 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 48,849 psi | 75% | 3100 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 48,486 psi | 75% | 2966 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 35,708 psi | 55% | 2740 fps | 95.8% |
| Bofors RP30 | <<locked>> | 86% | 36,390 psi | 56% | 2789 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 38,479 psi | 59% | 2812 fps | 96.9% |
| Bofors RP7 | <<locked>> | 80% | 52,866 psi | 81% | 2999 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 35,215 psi | 54% | 2726 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 52,460 psi | 81% | 3054 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 54,853 psi | 84% | 3068 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 80% | 40,422 psi | 62% | 2805 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,827 psi | 61% | 2792 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,021 psi | 71% | 2874 fps | 100% |
| Hodgdon Retumbo | 58.7 gr | 82% | 33,562 psi | 52% | 2769 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 52,707 psi | 81% | 3084 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,050 psi | 43% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,153 psi | 74% | 2927 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,230 psi | 83% | 3022 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,385 psi | 74% | 2940 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,872 psi | 64% | 2805 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 39,233 psi | 60% | 2841 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 94% | 37,159 psi | 57% | 2825 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 51,750 psi | 80% | 2969 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,111 psi | 77% | 2959 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 33,257 psi | 51% | 2612 fps | 97.6% |
| Norma 204 | <<locked>> | 80% | 48,675 psi | 75% | 2976 fps | 99% |
| Norma 217 | <<locked>> | 90% | 32,547 psi | 50% | 2726 fps | 96% |
| Norma MRP | <<locked>> | 80% | 40,451 psi | 62% | 2884 fps | 98.7% |
| Norma URP | <<locked>> | 80% | 49,676 psi | 76% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,260 psi | 56% | 2779 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 48,646 psi | 75% | 2982 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,474 psi | 50% | 2654 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,790 psi | 44% | 1808 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,242 psi | 79% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,545 psi | 76% | 3045 fps | 100% |
| ReloadSwiss RS 76 | 61.3 gr | 80% | 30,458 psi | 47% | 2667 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 42,830 psi | 66% | 2972 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 43,540 psi | 67% | 2848 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 80% | 41,930 psi | 65% | 2854 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 80% | 52,866 psi | 81% | 2999 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,750 psi | 80% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,111 psi | 77% | 2959 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,763 psi | 78% | 2917 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,582 psi | 64% | 2848 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 44,527 psi | 69% | 2838 fps | 96.7% |
| Somchem S365 | <<locked>> | 80% | 47,079 psi | 72% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,540 psi | 65% | 2835 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 80% | 54,940 psi | 85% | 2956 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 51,314 psi | 79% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,014 psi | 57% | 2700 fps | 97% |
| Vihtavuori N550 | <<locked>> | 80% | 50,560 psi | 78% | 2979 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,437 psi | 64% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,408 psi | 62% | 2874 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 84% | 38,276 psi | 59% | 2805 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 92% | 44,179 psi | 68% | 2986 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 98% | 51,866 psi | 80% | 3179 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,473 psi | 78% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,678 psi | 81% | 3054 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,968 psi | 52% | 2802 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,030 psi | 60% | 2756 fps | 97% |
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 74 powders for 6.5 Weatherby RPM loaded with the .264 | 127gr | RWS Kegelspitz. Hodgdon Retumbo delivers the highest muzzle velocity at 3,307 fps; across all powders the maximum-charge window runs from 1,972 fps to 3,307 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 127.0 gr projectile in 0.264" calls for a 1:11.5 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 | 127gr | RWS Kegelspitz 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.