Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 123gr | Reichenberg HDB Universal bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 76, Hodgdon Retumbo and Winchester StaBALL HD.
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% | 55,361 psi | 85% | 3094 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,043 psi | 86% | 3120 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,783 psi | 89% | 3258 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 90% | 57,000 psi | 88% | 3189 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 55,042 psi | 85% | 3196 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 3150 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,427 psi | 73% | 3107 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,174 psi | 88% | 3182 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 58,407 psi | 90% | 3196 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,666 psi | 87% | 3176 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,288 psi | 85% | 3189 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,492 psi | 87% | 3156 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,159 psi | 86% | 3222 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,276 psi | 88% | 3255 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,275 psi | 87% | 3146 fps | 96.9% |
| Bofors RP15 | <<locked>> | 96% | 57,885 psi | 89% | 3232 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,985 psi | 86% | 3228 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 55,288 psi | 85% | 3189 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 58,102 psi | 89% | 3123 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,392 psi | 90% | 3241 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 57,740 psi | 89% | 3179 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,463 psi | 87% | 3136 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 58,566 psi | 90% | 3189 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,464 psi | 88% | 3169 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,261 psi | 88% | 3094 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 58,784 psi | 90% | 3366 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,450 psi | 90% | 3219 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,246 psi | 57% | 1991 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,217 psi | 86% | 3107 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,898 psi | 86% | 3087 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,594 psi | 87% | 3114 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,535 psi | 85% | 3107 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 56,637 psi | 87% | 3232 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,946 psi | 66% | 3002 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 56,724 psi | 87% | 3087 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,508 psi | 90% | 3140 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,478 psi | 87% | 3107 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,377 psi | 88% | 3166 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 43,337 psi | 67% | 3035 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 55,100 psi | 85% | 3209 fps | 100% |
| Norma URP | <<locked>> | 86% | 58,160 psi | 89% | 3159 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,638 psi | 89% | 3255 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 57,029 psi | 88% | 3166 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,304 psi | 87% | 3182 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,189 psi | 59% | 2041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,376 psi | 87% | 3146 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,769 psi | 90% | 3238 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,956 psi | 86% | 3301 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,129 psi | 85% | 3248 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 90% | 58,088 psi | 89% | 3156 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 56,217 psi | 86% | 3166 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 58,102 psi | 89% | 3123 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,724 psi | 87% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,508 psi | 90% | 3140 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,740 psi | 90% | 2969 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,869 psi | 86% | 3038 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,796 psi | 86% | 3159 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 55,970 psi | 86% | 3084 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 55,201 psi | 85% | 3104 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,536 psi | 87% | 3130 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,594 psi | 87% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,028 psi | 86% | 3094 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,420 psi | 87% | 3114 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,332 psi | 85% | 3097 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,769 psi | 90% | 3186 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 58,813 psi | 90% | 3271 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 96% | 55,027 psi | 85% | 3186 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,912 psi | 86% | 3251 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,622 psi | 86% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,740 psi | 89% | 3179 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,042 psi | 85% | 3245 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,492 psi | 87% | 3127 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% | 36,695 psi | 56% | 2733 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 48,892 psi | 75% | 3002 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 43,598 psi | 67% | 2982 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,625 psi | 63% | 2867 fps | 97% |
| ADI AR 2213 | <<locked>> | 82% | 39,030 psi | 60% | 2861 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 37,826 psi | 58% | 2825 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,981 psi | 49% | 2717 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,862 psi | 72% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,389 psi | 84% | 3133 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,698 psi | 63% | 2864 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,738 psi | 57% | 2805 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,288 psi | 54% | 2762 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,618 psi | 47% | 2667 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,073 psi | 60% | 2920 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,792 psi | 77% | 3025 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,448 psi | 56% | 2795 fps | 95.6% |
| Bofors RP30 | <<locked>> | 88% | 37,086 psi | 57% | 2841 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,738 psi | 57% | 2805 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 51,082 psi | 79% | 3005 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 38,653 psi | 59% | 2848 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 50,473 psi | 78% | 3058 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,968 psi | 81% | 3077 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 41,495 psi | 64% | 2864 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,915 psi | 63% | 2851 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,135 psi | 68% | 2881 fps | 100% |
| Hodgdon Retumbo | 59.2 gr | 84% | 34,258 psi | 53% | 2822 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 50,444 psi | 78% | 3087 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,934 psi | 43% | 1781 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,441 psi | 71% | 2930 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,475 psi | 81% | 3031 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,485 psi | 72% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,364 psi | 62% | 2805 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 84% | 40,219 psi | 62% | 2904 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,623 psi | 58% | 2874 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,980 psi | 77% | 2976 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,327 psi | 74% | 2969 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,676 psi | 49% | 2602 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 46,876 psi | 72% | 2979 fps | 98.3% |
| Norma 217 | <<locked>> | 92% | 32,996 psi | 51% | 2772 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,551 psi | 59% | 2881 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 47,732 psi | 73% | 2986 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 40,001 psi | 62% | 2910 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 46,789 psi | 72% | 2989 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 33,199 psi | 51% | 2710 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,660 psi | 44% | 1827 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,979 psi | 75% | 3025 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,224 psi | 73% | 3048 fps | 100% |
| ReloadSwiss RS 76 | 61.8 gr | 82% | 31,096 psi | 48% | 2720 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,613 psi | 67% | 3025 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 42,090 psi | 65% | 2851 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 80% | 40,147 psi | 62% | 2851 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 51,082 psi | 79% | 3005 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,980 psi | 77% | 2976 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,327 psi | 74% | 2969 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,303 psi | 85% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,066 psi | 75% | 2923 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,813 psi | 61% | 2844 fps | 96.9% |
| Somchem S361 | <<locked>> | 80% | 42,786 psi | 66% | 2835 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 44,991 psi | 69% | 2940 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,814 psi | 63% | 2835 fps | 98% |
| Vihtavuori N150 | <<locked>> | 80% | 53,055 psi | 82% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,153 psi | 76% | 2979 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,259 psi | 54% | 2694 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 48,704 psi | 75% | 2986 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,537 psi | 61% | 2844 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 41,321 psi | 64% | 2933 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 86% | 39,073 psi | 60% | 2861 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 45,020 psi | 69% | 3045 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,443 psi | 75% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,720 psi | 78% | 3061 fps | 99.8% |
| Winchester StaBALL HD | 57.9 gr | 80% | 31,763 psi | 49% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,231 psi | 57% | 2749 fps | 96% |
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 72 powders for 6.5 Weatherby RPM loaded with the .264 | 123gr | Reichenberg HDB Universal. Hodgdon Retumbo delivers the highest muzzle velocity at 3,366 fps; across all powders the maximum-charge window runs from 1,991 fps to 3,366 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:10.0 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. ReloadSwiss RS 76, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 6.5 Weatherby RPM with the .264 | 123gr | Reichenberg HDB Universal 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.