Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 123gr | Apex Outdoors Afterburner bullet and 77 powders. The key underlying parameters are shown in the table above.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 94% | 56,217 psi | 86% | 3091 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,261 psi | 88% | 3123 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 57,421 psi | 88% | 3251 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 94% | 58,175 psi | 89% | 3248 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 57,624 psi | 89% | 3071 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,682 psi | 89% | 3179 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 55,390 psi | 85% | 3182 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,951 psi | 77% | 3074 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,585 psi | 69% | 3031 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,696 psi | 89% | 3176 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,158 psi | 85% | 3136 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,392 psi | 88% | 3169 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,535 psi | 85% | 3182 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,811 psi | 87% | 3150 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 3212 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,580 psi | 89% | 3251 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,246 psi | 88% | 3136 fps | 96.6% |
| Bofors RP15 | <<locked>> | 98% | 58,407 psi | 90% | 3225 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,315 psi | 80% | 3156 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 55,535 psi | 85% | 3182 fps | 99.5% |
| Bofors RP7 | <<locked>> | 84% | 55,767 psi | 86% | 3064 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,897 psi | 84% | 3166 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 86% | 58,726 psi | 90% | 3179 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,508 psi | 88% | 3130 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 55,448 psi | 85% | 3117 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,986 psi | 89% | 3159 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 58,088 psi | 89% | 3091 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,882 psi | 84% | 3287 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,332 psi | 85% | 3156 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 57% | 1962 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,217 psi | 88% | 3104 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,130 psi | 88% | 3091 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 57,566 psi | 89% | 3114 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,376 psi | 87% | 3100 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 57,000 psi | 88% | 3222 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 57,885 psi | 89% | 3087 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,072 psi | 86% | 3084 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,072 psi | 88% | 3100 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,378 psi | 90% | 3166 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 40,466 psi | 62% | 2963 fps | 98.2% |
| Norma MRP | <<locked>> | 92% | 55,593 psi | 86% | 3209 fps | 100% |
| Norma URP | <<locked>> | 86% | 55,448 psi | 85% | 3104 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,204 psi | 90% | 3248 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 57,885 psi | 89% | 3163 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,376 psi | 87% | 3173 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,029 psi | 59% | 2008 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,581 psi | 90% | 3176 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,159 psi | 88% | 3146 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,288 psi | 85% | 3176 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,043 psi | 86% | 3291 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,749 psi | 78% | 3159 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 57,232 psi | 88% | 3064 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,245 psi | 85% | 3087 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 92% | 56,884 psi | 88% | 3159 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 55,767 psi | 86% | 3064 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,885 psi | 89% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,072 psi | 86% | 3084 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,697 psi | 90% | 3127 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,753 psi | 87% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,029 psi | 88% | 3035 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,434 psi | 87% | 3153 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 56,710 psi | 87% | 3058 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,000 psi | 88% | 3077 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 55,898 psi | 86% | 3104 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,435 psi | 88% | 3127 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,943 psi | 89% | 3025 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,130 psi | 88% | 3091 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,014 psi | 88% | 3104 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 56,333 psi | 87% | 3097 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,738 psi | 86% | 3130 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,332 psi | 85% | 3199 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 98% | 55,274 psi | 85% | 3176 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,953 psi | 80% | 3169 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,637 psi | 87% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,143 psi | 85% | 3123 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,505 psi | 84% | 3238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,464 psi | 88% | 3123 fps | 99.6% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 35,317 psi | 54% | 2687 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 46,891 psi | 72% | 2953 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 40,538 psi | 62% | 2917 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 86% | 44,208 psi | 68% | 2986 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 54,433 psi | 84% | 3025 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,899 psi | 60% | 2812 fps | 96.1% |
| ADI AR 2213 | <<locked>> | 86% | 42,424 psi | 65% | 2927 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 94% | 41,002 psi | 63% | 2881 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 90% | 32,619 psi | 50% | 2720 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,483 psi | 68% | 2953 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,590 psi | 79% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,001 psi | 60% | 2808 fps | 96.2% |
| Alliant Reloder-22 | <<locked>> | 82% | 37,376 psi | 58% | 2812 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,765 psi | 52% | 2717 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,457 psi | 45% | 2615 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,796 psi | 57% | 2861 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,824 psi | 83% | 3074 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 37,101 psi | 57% | 2802 fps | 95.5% |
| Bofors RP30 | <<locked>> | 92% | 40,045 psi | 62% | 2907 fps | 95.9% |
| Bofors RP5 | <<locked>> | 82% | 37,376 psi | 58% | 2812 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 49,211 psi | 76% | 2949 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 90% | 39,233 psi | 60% | 2844 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 48,327 psi | 74% | 3002 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 50,720 psi | 78% | 3015 fps | 99% |
| Hodgdon H4831 | <<locked>> | 84% | 42,496 psi | 65% | 2871 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,454 psi | 68% | 2913 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,235 psi | 65% | 2831 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 34,780 psi | 54% | 2822 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 47,877 psi | 74% | 3025 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,978 psi | 43% | 1755 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,614 psi | 69% | 2877 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,546 psi | 78% | 2976 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 44,599 psi | 69% | 2894 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,350 psi | 64% | 2808 fps | 95% |
| IMR 7828 SSC | <<locked>> | 86% | 40,973 psi | 63% | 2904 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 48,356 psi | 74% | 2927 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,557 psi | 72% | 2913 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 30,487 psi | 47% | 2556 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 44,715 psi | 69% | 2917 fps | 97.6% |
| Norma 217 | <<locked>> | 94% | 33,257 psi | 51% | 2772 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 36,564 psi | 56% | 2822 fps | 97% |
| Norma URP | <<locked>> | 80% | 45,716 psi | 70% | 2936 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 40,741 psi | 63% | 2910 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 44,570 psi | 69% | 2930 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 84% | 34,055 psi | 52% | 2720 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 44% | 1798 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,766 psi | 84% | 3123 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,688 psi | 72% | 2972 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,701 psi | 69% | 2989 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 34,069 psi | 52% | 2799 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 43,918 psi | 68% | 3022 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 53,693 psi | 83% | 3012 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 40,393 psi | 62% | 2795 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 38,392 psi | 59% | 2795 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 80% | 49,211 psi | 76% | 2949 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,356 psi | 74% | 2927 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,557 psi | 72% | 2913 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,911 psi | 84% | 3071 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,272 psi | 82% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,239 psi | 73% | 2867 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,058 psi | 59% | 2792 fps | 96% |
| Somchem S355 | <<locked>> | 80% | 53,505 psi | 82% | 3009 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,830 psi | 67% | 2838 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 42,801 psi | 66% | 2890 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,131 psi | 60% | 2782 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 80% | 51,068 psi | 79% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,166 psi | 73% | 2930 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,837 psi | 52% | 2644 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 46,514 psi | 72% | 2930 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,913 psi | 58% | 2799 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 42,047 psi | 65% | 2936 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 90% | 42,235 psi | 65% | 2927 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 96% | 45,092 psi | 69% | 3031 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,238 psi | 71% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,327 psi | 74% | 3002 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,095 psi | 46% | 2736 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,607 psi | 55% | 2694 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 82 powders for 6.5 Weatherby RPM loaded with the .264 | 123gr | Apex Outdoors Afterburner. ReloadSwiss RS 76 delivers the highest muzzle velocity at 3,291 fps; across all powders the maximum-charge window runs from 1,962 fps to 3,291 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 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 1:6.5 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. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.