Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 115gr | Barnes TAC-TX BT bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Accurate High Country.
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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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>> | 96% | 57,203 psi | 88% | 3212 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 58,624 psi | 90% | 3255 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 55,071 psi | 85% | 3317 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 94% | 56,115 psi | 86% | 3317 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 56,028 psi | 86% | 3159 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,898 psi | 86% | 3258 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 57,493 psi | 88% | 3323 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,993 psi | 74% | 3133 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,598 psi | 66% | 3084 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,970 psi | 86% | 3251 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,159 psi | 88% | 3182 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,840 psi | 86% | 3261 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,927 psi | 88% | 3274 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,230 psi | 85% | 3241 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,276 psi | 88% | 3314 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 58,392 psi | 90% | 3281 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,143 psi | 83% | 3287 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,085 psi | 85% | 3317 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 56,115 psi | 86% | 3294 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 58,146 psi | 89% | 3199 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,821 psi | 77% | 3209 fps | 98.1% |
| Bofors RP5 | <<locked>> | 96% | 57,276 psi | 88% | 3314 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 57,276 psi | 88% | 3199 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,026 psi | 82% | 3235 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 58,537 psi | 90% | 3228 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 56,521 psi | 87% | 3255 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 55,564 psi | 85% | 3209 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 57,305 psi | 88% | 3255 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,188 psi | 86% | 3235 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,941 psi | 86% | 3173 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,852 psi | 81% | 3356 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 86% | 57,392 psi | 88% | 3297 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 57% | 2041 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,332 psi | 85% | 3182 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,288 psi | 85% | 3166 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 58,755 psi | 90% | 3241 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 58,189 psi | 90% | 3235 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 55,230 psi | 85% | 3297 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 55,753 psi | 86% | 3166 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,421 psi | 88% | 3215 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,404 psi | 84% | 3169 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,391 psi | 87% | 3238 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 38,014 psi | 58% | 2992 fps | 96.9% |
| Norma MRP | <<locked>> | 94% | 57,188 psi | 88% | 3340 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,884 psi | 88% | 3238 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,985 psi | 86% | 3317 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 55,753 psi | 86% | 3238 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,244 psi | 83% | 3241 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 58% | 2090 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 58,131 psi | 89% | 3209 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,550 psi | 87% | 3261 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,766 psi | 84% | 3219 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,276 psi | 88% | 3314 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,824 psi | 83% | 3356 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,573 psi | 75% | 3215 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 84% | 58,581 psi | 90% | 3199 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,985 psi | 88% | 3222 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 58,479 psi | 90% | 3291 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 57,276 psi | 88% | 3199 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,753 psi | 86% | 3166 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,421 psi | 88% | 3215 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,637 psi | 87% | 3209 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 58,537 psi | 90% | 3061 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,056 psi | 85% | 3110 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 58,015 psi | 89% | 3287 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 57,972 psi | 89% | 3189 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,071 psi | 85% | 3153 fps | 97.8% |
| Somchem S365 | <<locked>> | 90% | 57,363 psi | 88% | 3238 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,158 psi | 85% | 3196 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 55,927 psi | 86% | 3107 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,158 psi | 85% | 3173 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 58,784 psi | 90% | 3238 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 58,030 psi | 89% | 3235 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,608 psi | 87% | 3255 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,058 psi | 88% | 3333 fps | 98.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,681 psi | 87% | 3304 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,690 psi | 76% | 3225 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,810 psi | 84% | 3127 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,811 psi | 87% | 3258 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,420 psi | 87% | 3373 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,347 psi | 85% | 3196 fps | 99.2% |
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% | 32,489 psi | 50% | 2707 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 44,048 psi | 68% | 3005 fps | 99.8% |
| Accurate High Country | 60.4 gr | 84% | 41,147 psi | 63% | 3028 fps | 95.2% |
| Accurate MAGPRO | 64.5 gr | 88% | 45,063 psi | 69% | 3100 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 52,460 psi | 81% | 3104 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,595 psi | 61% | 2927 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 43,410 psi | 67% | 3045 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 41,872 psi | 64% | 2999 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 94% | 34,722 psi | 53% | 2874 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,929 psi | 61% | 2930 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,490 psi | 82% | 3123 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,525 psi | 65% | 3018 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,211 psi | 76% | 3150 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,552 psi | 61% | 2920 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,637 psi | 58% | 2913 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,357 psi | 48% | 2746 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,254 psi | 45% | 2697 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,403 psi | 53% | 2890 fps | 98.2% |
| Bofors RP15 | <<locked>> | 86% | 37,347 psi | 57% | 2904 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 54,317 psi | 84% | 3140 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 40,350 psi | 62% | 3005 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 37,637 psi | 58% | 2913 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 47,137 psi | 73% | 3018 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 39,871 psi | 61% | 2953 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 54,476 psi | 84% | 3163 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 46,137 psi | 71% | 3064 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 48,646 psi | 75% | 3081 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 88% | 46,499 psi | 72% | 3054 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,600 psi | 70% | 3035 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,914 psi | 61% | 2887 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,521 psi | 58% | 2995 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 45,643 psi | 70% | 3084 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,557 psi | 42% | 1831 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,656 psi | 66% | 2936 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,733 psi | 75% | 3048 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 42,163 psi | 65% | 2949 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,165 psi | 69% | 2992 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 41,611 psi | 64% | 3015 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 45,963 psi | 71% | 2989 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 44,251 psi | 68% | 2972 fps | 98.7% |
| Lovex S071 | <<locked>> | 84% | 31,981 psi | 49% | 2694 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 42,627 psi | 66% | 2972 fps | 96.6% |
| Norma 217 | <<locked>> | 98% | 35,375 psi | 54% | 2917 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 34,156 psi | 53% | 2851 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 43,424 psi | 67% | 2992 fps | 99.8% |
| Ramshot Grand | 62.8 gr | 88% | 41,524 psi | 64% | 3028 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 42,366 psi | 65% | 2986 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 36,869 psi | 57% | 2884 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 43% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,447 psi | 84% | 3150 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,344 psi | 81% | 3199 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,295 psi | 68% | 3028 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,554 psi | 65% | 3045 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,330 psi | 53% | 2890 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 44,889 psi | 69% | 3136 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 51,111 psi | 79% | 3084 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,973 psi | 63% | 2907 fps | 95% |
| Rottweil R 905 | <<locked>> | 82% | 38,812 psi | 60% | 2904 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 47,137 psi | 73% | 3018 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,963 psi | 71% | 2989 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 44,251 psi | 68% | 2972 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,736 psi | 81% | 3146 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,430 psi | 79% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,179 psi | 70% | 2933 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,464 psi | 59% | 2897 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 51,024 psi | 78% | 3081 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,875 psi | 69% | 2959 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 40,321 psi | 62% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,637 psi | 56% | 2818 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 80% | 48,863 psi | 75% | 2995 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,904 psi | 69% | 2989 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,448 psi | 56% | 2802 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 44,266 psi | 68% | 2989 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,259 psi | 54% | 2831 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 86% | 42,975 psi | 66% | 3054 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 92% | 42,699 psi | 66% | 3031 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 98% | 46,253 psi | 71% | 3153 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,179 psi | 68% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,137 psi | 71% | 3064 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,731 psi | 43% | 2740 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,667 psi | 59% | 2864 fps | 95.6% |
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 81 powders for 6.5 Weatherby RPM loaded with the .264 | 115gr | Barnes TAC-TX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,373 fps; across all powders the maximum-charge window runs from 2,041 fps to 3,373 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 115.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Accurate MAGPRO, Ramshot Grand, Accurate High Country rank at the top here: for 6.5 Weatherby RPM with the .264 | 115gr | Barnes TAC-TX BT 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.