Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 122gr | THAC EDH bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Hodgdon Retumbo.
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% | 55,405 psi | 85% | 3087 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,275 psi | 87% | 3120 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,232 psi | 88% | 3241 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 90% | 56,347 psi | 87% | 3173 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 57,928 psi | 89% | 3238 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 3130 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,123 psi | 72% | 3097 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,594 psi | 87% | 3166 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,391 psi | 87% | 3169 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,566 psi | 89% | 3182 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,941 psi | 86% | 3159 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,247 psi | 90% | 3238 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,811 psi | 86% | 3146 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,114 psi | 85% | 3209 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,289 psi | 87% | 3238 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,651 psi | 86% | 3123 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 57,145 psi | 88% | 3219 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,027 psi | 85% | 3209 fps | 99.2% |
| Bofors RP5 | <<locked>> | 94% | 58,247 psi | 90% | 3238 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 57,682 psi | 89% | 3110 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,580 psi | 89% | 3222 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 57,130 psi | 88% | 3166 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,883 psi | 86% | 3117 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 57,696 psi | 89% | 3169 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,579 psi | 87% | 3150 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,797 psi | 87% | 3084 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,783 psi | 89% | 3350 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 57,754 psi | 89% | 3205 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 58% | 1982 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,840 psi | 86% | 3094 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,550 psi | 85% | 3074 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 56,159 psi | 86% | 3104 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 58,494 psi | 90% | 3146 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 94% | 55,956 psi | 86% | 3215 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,888 psi | 66% | 2999 fps | 96.7% |
| Lovex S065 | <<locked>> | 84% | 56,449 psi | 87% | 3077 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,320 psi | 90% | 3130 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,492 psi | 87% | 3104 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,855 psi | 87% | 3153 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 43,062 psi | 66% | 3028 fps | 98.8% |
| Norma MRP | <<locked>> | 92% | 58,117 psi | 89% | 3258 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,783 psi | 89% | 3150 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,782 psi | 87% | 3238 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 56,550 psi | 87% | 3156 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,201 psi | 85% | 3166 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,305 psi | 59% | 2028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,028 psi | 86% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 57,841 psi | 89% | 3222 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,882 psi | 84% | 3284 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,954 psi | 83% | 3228 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 90% | 57,537 psi | 89% | 3136 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 55,492 psi | 85% | 3150 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 57,682 psi | 89% | 3110 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,449 psi | 87% | 3077 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,320 psi | 90% | 3130 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,465 psi | 90% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,651 psi | 86% | 3025 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,056 psi | 85% | 3143 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 55,448 psi | 85% | 3068 fps | 98.2% |
| Somchem S365 | <<locked>> | 88% | 58,421 psi | 90% | 3150 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,405 psi | 87% | 3123 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,478 psi | 87% | 3015 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,898 psi | 86% | 3084 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,738 psi | 86% | 3097 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 84% | 55,201 psi | 85% | 3091 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,320 psi | 90% | 3176 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,754 psi | 89% | 3251 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 58,320 psi | 90% | 3238 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,810 psi | 84% | 3228 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,230 psi | 85% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,377 psi | 88% | 3169 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,798 psi | 89% | 3291 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,057 psi | 86% | 3114 fps | 99.5% |
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% | 37,550 psi | 58% | 2746 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 49,371 psi | 76% | 3005 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 43,410 psi | 67% | 2976 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 40,756 psi | 63% | 2864 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 84% | 41,698 psi | 64% | 2920 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 92% | 40,437 psi | 62% | 2881 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 88% | 32,445 psi | 50% | 2723 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,234 psi | 63% | 2867 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,601 psi | 72% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,795 psi | 83% | 3123 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,901 psi | 63% | 2864 fps | 96.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,941 psi | 57% | 2805 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,607 psi | 55% | 2769 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,183 psi | 48% | 2677 fps | 97% |
| Alliant Reloder-26 | 57.8 gr | 80% | 39,189 psi | 60% | 2923 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,402 psi | 81% | 3064 fps | 95.5% |
| Bofors RP15 | <<locked>> | 82% | 36,695 psi | 56% | 2799 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 39,668 psi | 61% | 2904 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 36,941 psi | 57% | 2805 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 51,184 psi | 79% | 2999 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 38,580 psi | 59% | 2838 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 50,357 psi | 77% | 3051 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,663 psi | 81% | 3061 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 44,498 psi | 68% | 2923 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,627 psi | 67% | 2907 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,179 psi | 68% | 2877 fps | 100% |
| Hodgdon Retumbo | 56.8 gr | 84% | 34,577 psi | 53% | 2825 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 50,024 psi | 77% | 3074 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 43% | 1772 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,456 psi | 71% | 2923 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,083 psi | 80% | 3015 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 46,528 psi | 72% | 2940 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 43,047 psi | 66% | 2858 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 84% | 40,190 psi | 62% | 2894 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 98% | 40,277 psi | 62% | 2940 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 50,154 psi | 77% | 2969 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,617 psi | 75% | 2966 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,706 psi | 50% | 2625 fps | 96.8% |
| Norma 204 | <<locked>> | 80% | 46,572 psi | 72% | 2966 fps | 98% |
| Norma 217 | <<locked>> | 92% | 33,373 psi | 51% | 2779 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 38,580 psi | 59% | 2881 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 47,805 psi | 74% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,900 psi | 61% | 2900 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 46,543 psi | 72% | 2979 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 33,678 psi | 52% | 2717 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,834 psi | 44% | 1818 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,095 psi | 76% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,920 psi | 72% | 3038 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 33,837 psi | 52% | 2799 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,468 psi | 67% | 3022 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 42,003 psi | 65% | 2841 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 80% | 40,393 psi | 62% | 2851 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,184 psi | 79% | 2999 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,154 psi | 77% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,617 psi | 75% | 2966 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,274 psi | 85% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,168 psi | 76% | 2913 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,059 psi | 62% | 2844 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 42,931 psi | 66% | 2831 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 45,121 psi | 69% | 2940 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,147 psi | 63% | 2835 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 53,156 psi | 82% | 2966 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,240 psi | 76% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,708 psi | 55% | 2697 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 48,776 psi | 75% | 2982 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,045 psi | 62% | 2851 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 41,278 psi | 64% | 2927 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 88% | 42,032 psi | 65% | 2927 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 94% | 44,672 psi | 69% | 3035 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,269 psi | 74% | 2927 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,357 psi | 77% | 3051 fps | 99.7% |
| Winchester StaBALL HD | 55.5 gr | 80% | 31,981 psi | 49% | 2805 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,478 psi | 58% | 2749 fps | 95.8% |
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 73 powders for 6.5 Weatherby RPM loaded with the .264 | 122gr | THAC EDH. Hodgdon Retumbo delivers the highest muzzle velocity at 3,350 fps; across all powders the maximum-charge window runs from 1,982 fps to 3,350 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 122.0 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, Bofors RP30 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. Alliant Reloder-26, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for 6.5 Weatherby RPM with the .264 | 122gr | THAC EDH 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.