Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 85gr | Hammer Hunter bullet and 90 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 760 and Alliant Reloder-16.
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 2495 | <<locked>> | 82% | 56,159 psi | 86% | 3494 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,464 psi | 88% | 3556 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,753 psi | 87% | 3596 fps | 99.3% |
| Accurate 4064 | <<locked>> | 84% | 56,579 psi | 87% | 3556 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,407 psi | 90% | 3675 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 56,652 psi | 87% | 3593 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,521 psi | 85% | 3642 fps | 97.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,319 psi | 88% | 3701 fps | 96.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,275 psi | 87% | 3734 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,580 psi | 89% | 3619 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,841 psi | 89% | 3648 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,158 psi | 85% | 3678 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,579 psi | 87% | 3701 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,013 psi | 85% | 3629 fps | 97.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,449 psi | 87% | 3694 fps | 97.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,156 psi | 82% | 3615 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,180 psi | 71% | 3510 fps | 98.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 58,059 psi | 89% | 3786 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,561 psi | 79% | 3593 fps | 96.3% |
| Bofors RP3 | <<locked>> | 84% | 54,911 psi | 84% | 3573 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,449 psi | 87% | 3694 fps | 97.6% |
| Bofors RP7 | <<locked>> | 90% | 57,914 psi | 89% | 3609 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 55,361 psi | 85% | 3589 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 56,724 psi | 87% | 3665 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 88% | 56,028 psi | 86% | 3615 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,434 psi | 85% | 3583 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,652 psi | 87% | 3638 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 57,653 psi | 89% | 3704 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,172 psi | 56% | 2356 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,869 psi | 87% | 3599 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,014 psi | 86% | 3573 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,813 psi | 90% | 3612 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 55,550 psi | 85% | 3579 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,941 psi | 86% | 3579 fps | 98.4% |
| IMR 4831 | <<locked>> | 94% | 58,682 psi | 90% | 3658 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,477 psi | 85% | 3615 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,711 psi | 90% | 3625 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 57,319 psi | 88% | 3560 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,202 psi | 86% | 3566 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,202 psi | 86% | 3576 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 57,899 psi | 89% | 3625 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,963 psi | 72% | 3409 fps | 97.7% |
| Norma 201 | <<locked>> | 82% | 57,406 psi | 88% | 3583 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,117 psi | 89% | 3579 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,145 psi | 88% | 3629 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,826 psi | 87% | 3642 fps | 97.2% |
| Norma MRP | <<locked>> | 98% | 56,376 psi | 87% | 3730 fps | 98.7% |
| Norma URP | <<locked>> | 92% | 56,826 psi | 87% | 3655 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 58,450 psi | 90% | 3658 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,463 psi | 85% | 3681 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 92% | 55,796 psi | 86% | 3642 fps | 99.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,806 psi | 77% | 3527 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 57% | 2408 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,172 psi | 85% | 3563 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,941 psi | 86% | 3701 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,552 psi | 90% | 3691 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,072 psi | 88% | 3727 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,847 psi | 71% | 3533 fps | 96.8% |
| Rottweil R 902 | <<locked>> | 84% | 58,233 psi | 90% | 3586 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,245 psi | 85% | 3573 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,145 psi | 88% | 3609 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 98% | 58,015 psi | 89% | 3681 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 57,914 psi | 89% | 3609 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,202 psi | 86% | 3576 fps | 99.3% |
| Shooters World Precision | <<locked>> | 84% | 56,202 psi | 86% | 3566 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,899 psi | 89% | 3625 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,956 psi | 88% | 3638 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,580 psi | 89% | 3612 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,059 psi | 89% | 3507 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,709 psi | 86% | 3445 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,101 psi | 86% | 3517 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,508 psi | 88% | 3675 fps | 97.7% |
| Somchem S335 | <<locked>> | 82% | 57,783 psi | 89% | 3494 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,610 psi | 90% | 3629 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 56,463 psi | 87% | 3655 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,100 psi | 85% | 3583 fps | 98% |
| Vihtavuori N133 | <<locked>> | 82% | 58,581 psi | 90% | 3484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,668 psi | 90% | 3540 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,405 psi | 85% | 3494 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,507 psi | 87% | 3537 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,998 psi | 85% | 3576 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,433 psi | 84% | 3547 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 84% | 57,334 psi | 88% | 3543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,276 psi | 90% | 3648 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 55,724 psi | 86% | 3655 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,085 psi | 85% | 3533 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,724 psi | 87% | 3665 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,037 psi | 75% | 3684 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,001 psi | 89% | 3622 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,376 psi | 85% | 3573 fps | 97.1% |
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 2495 | <<locked>> | 80% | 52,605 psi | 81% | 3438 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,285 psi | 77% | 3422 fps | 96.7% |
| Accurate 3100 | <<locked>> | 90% | 39,842 psi | 61% | 3245 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 49,821 psi | 77% | 3438 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,203 psi | 59% | 3241 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 80% | 46,920 psi | 72% | 3399 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 92% | 48,501 psi | 75% | 3494 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 98% | 53,635 psi | 83% | 3629 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,417 psi | 81% | 3658 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,427 psi | 73% | 3428 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,763 psi | 78% | 3514 fps | 99.7% |
| Alliant Reloder-16 | 56.7 gr | 80% | 36,883 psi | 57% | 3251 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,235 psi | 65% | 3412 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 92% | 48,167 psi | 74% | 3484 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 49,197 psi | 76% | 3547 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 30,951 psi | 48% | 3068 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 94% | 37,913 psi | 58% | 3291 fps | 95.7% |
| Alliant Reloder-26 | 67.3 gr | 86% | 36,492 psi | 56% | 3294 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 48,240 psi | 74% | 3524 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 47,979 psi | 74% | 3442 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 49,197 psi | 76% | 3547 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 44,802 psi | 69% | 3340 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 48,240 psi | 74% | 3448 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 43,062 psi | 66% | 3369 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 45,963 psi | 71% | 3402 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,519 psi | 53% | 3127 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,910 psi | 81% | 3573 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 42,409 psi | 65% | 3376 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,977 psi | 42% | 2116 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,417 psi | 82% | 3537 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,313 psi | 76% | 3448 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,517 psi | 79% | 3471 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 45,876 psi | 71% | 3376 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,482 psi | 67% | 3314 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 36,622 psi | 56% | 3186 fps | 96.4% |
| IMR 4895 | <<locked>> | 80% | 52,112 psi | 80% | 3550 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,926 psi | 85% | 3553 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 53,896 psi | 83% | 3501 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,559 psi | 76% | 3445 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,973 psi | 63% | 3248 fps | 96.4% |
| Lovex S070 | <<locked>> | 82% | 41,916 psi | 64% | 3287 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 38,334 psi | 59% | 3205 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 53,896 psi | 83% | 3524 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,578 psi | 84% | 3520 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,140 psi | 77% | 3497 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 49,400 psi | 76% | 3491 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 42,090 psi | 65% | 3412 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 37,768 psi | 58% | 3235 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 50,850 psi | 78% | 3517 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 51,430 psi | 79% | 3599 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 82% | 39,581 psi | 61% | 3284 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 98% | 45,992 psi | 71% | 3442 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,485 psi | 42% | 2165 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,312 psi | 74% | 3422 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,875 psi | 69% | 3488 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,101 psi | 59% | 3258 fps | 96.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,999 psi | 57% | 3258 fps | 95.6% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 42,540 psi | 65% | 3445 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,387 psi | 79% | 3465 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,020 psi | 69% | 3373 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 94% | 53,621 psi | 82% | 3540 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 47,297 psi | 73% | 3468 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 82% | 44,802 psi | 69% | 3340 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,973 psi | 63% | 3248 fps | 96.4% |
| Shooters World Precision | <<locked>> | 80% | 49,559 psi | 76% | 3445 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 41,916 psi | 64% | 3287 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,456 psi | 71% | 3435 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,896 psi | 83% | 3547 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,476 psi | 84% | 3448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,108 psi | 71% | 3278 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 43,076 psi | 66% | 3248 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 46,876 psi | 72% | 3458 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 54,404 psi | 84% | 3442 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,295 psi | 70% | 3373 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 34,229 psi | 53% | 3179 fps | 98.6% |
| Somchem S385 | <<locked>> | 90% | 45,034 psi | 69% | 3376 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 54,998 psi | 85% | 3428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,532 psi | 79% | 3425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,793 psi | 80% | 3432 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,250 psi | 67% | 3284 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 39,305 psi | 60% | 3241 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 94% | 44,469 psi | 68% | 3340 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 50,241 psi | 77% | 3419 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,769 psi | 60% | 3235 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 82% | 32,227 psi | 50% | 3100 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,667 psi | 59% | 3199 fps | 99% |
| Winchester 760 | 61.3 gr | 82% | 43,062 psi | 66% | 3369 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 29,631 psi | 46% | 3107 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,983 psi | 83% | 3550 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 47,863 psi | 74% | 3422 fps | 95.2% |
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 102 powders for 6.5 Weatherby RPM loaded with the .264 | 85gr | Hammer Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,786 fps; across all powders the maximum-charge window runs from 2,356 fps to 3,786 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2225 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 760, Alliant Reloder-16 rank at the top here: for 6.5 Weatherby RPM with the .264 | 85gr | Hammer Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.