Load Specifications
Load data in caliber 6.5-300 Weatherby Mag. with .264 | 130gr | CutEdge MTH bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ADI AR 2218.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 55,956 psi | 86% | 3009 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 58,320 psi | 90% | 3176 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 84% | 55,390 psi | 85% | 3114 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 84% | 57,450 psi | 88% | 3104 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,115 psi | 86% | 3117 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 55,376 psi | 85% | 3100 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 55,796 psi | 86% | 3215 fps | 98.1% |
| ADI AR 2225 | <<locked>> | 98% | 58,595 psi | 90% | 3179 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,638 psi | 89% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 57,043 psi | 88% | 3094 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 56,507 psi | 87% | 3110 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 58,465 psi | 90% | 3071 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,463 psi | 85% | 3091 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,216 psi | 85% | 3097 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,769 psi | 89% | 3192 fps | 98.2% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,580 psi | 89% | 3179 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,550 psi | 87% | 3077 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 55,912 psi | 86% | 3100 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,216 psi | 85% | 3107 fps | 99.8% |
| Bofors RP5 | <<locked>> | 86% | 56,507 psi | 87% | 3110 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,768 psi | 87% | 3120 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 54,940 psi | 85% | 3048 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 86% | 57,653 psi | 89% | 3094 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 57,638 psi | 89% | 3005 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 54,853 psi | 84% | 3179 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,811 psi | 58% | 1998 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,245 psi | 85% | 3028 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 88% | 58,566 psi | 90% | 3163 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,188 psi | 88% | 3156 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 58,030 psi | 89% | 3041 fps | 100% |
| Norma 217 | <<locked>> | 98% | 54,708 psi | 84% | 3117 fps | 100% |
| Norma MRP | <<locked>> | 84% | 56,652 psi | 87% | 3123 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,869 psi | 86% | 3123 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 90% | 58,711 psi | 90% | 3114 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,711 psi | 60% | 2041 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,593 psi | 86% | 3166 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,737 psi | 84% | 3127 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 84% | 57,798 psi | 89% | 3074 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 56,666 psi | 87% | 3081 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 56,289 psi | 87% | 3077 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,419 psi | 85% | 3002 fps | 99.4% |
| Somchem S385 | <<locked>> | 84% | 56,855 psi | 88% | 3048 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,072 psi | 88% | 3038 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,347 psi | 87% | 3061 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 56,362 psi | 87% | 3045 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,057 psi | 86% | 3130 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 90% | 57,130 psi | 88% | 3120 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 55,187 psi | 85% | 3130 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 94% | 56,797 psi | 87% | 3199 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,361 psi | 85% | 3104 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 56,956 psi | 88% | 3048 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 45,585 psi | 70% | 2828 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 50,575 psi | 78% | 3035 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 80% | 47,848 psi | 74% | 2972 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 80% | 50,198 psi | 77% | 2979 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 45,455 psi | 70% | 2917 fps | 98.2% |
| ADI AR 2217 | <<locked>> | 82% | 36,143 psi | 56% | 2700 fps | 95.7% |
| ADI AR 2218 | 83.8 gr | 94% | 48,037 psi | 74% | 3058 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 30,850 psi | 47% | 2589 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,328 psi | 77% | 2976 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,864 psi | 77% | 2966 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 46,122 psi | 71% | 2920 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,788 psi | 69% | 2851 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,986 psi | 60% | 2785 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 51,169 psi | 79% | 3028 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,963 psi | 71% | 2963 fps | 95.2% |
| Alliant Reloder-50 | <<locked>> | 96% | 49,414 psi | 76% | 3022 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,354 psi | 71% | 2887 fps | 95.9% |
| Bofors RP15 | <<locked>> | 80% | 42,757 psi | 66% | 2844 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 36,158 psi | 56% | 2707 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 46,122 psi | 71% | 2920 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 80% | 36,651 psi | 56% | 2717 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 80% | 47,834 psi | 74% | 2917 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,050 psi | 72% | 2900 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,795 psi | 83% | 2949 fps | 100% |
| Hodgdon Retumbo | 67.3 gr | 80% | 38,014 psi | 59% | 2828 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,427 psi | 44% | 1788 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 48,573 psi | 75% | 2904 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 80% | 44,092 psi | 68% | 2894 fps | 97.9% |
| IMR 8133 Enduron | <<locked>> | 88% | 37,710 psi | 58% | 2759 fps | 96.1% |
| Lovex S071 | <<locked>> | 80% | 39,204 psi | 60% | 2697 fps | 99.4% |
| Norma 217 | <<locked>> | 82% | 30,777 psi | 47% | 2585 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 49,081 psi | 76% | 2992 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 44,643 psi | 69% | 2913 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 80% | 39,943 psi | 61% | 2772 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,124 psi | 45% | 1831 fps | 100% |
| ReloadSwiss RS 76 | 72 gr | 80% | 37,405 psi | 58% | 2799 fps | 98.8% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 40,059 psi | 62% | 2822 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 50,691 psi | 78% | 2949 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 49,530 psi | 76% | 2956 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,197 psi | 76% | 2949 fps | 99.6% |
| Somchem S361 | <<locked>> | 80% | 51,735 psi | 80% | 2940 fps | 98.9% |
| Somchem S385 | <<locked>> | 80% | 49,922 psi | 77% | 2930 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 43,598 psi | 67% | 2799 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 52,707 psi | 81% | 2995 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 49,298 psi | 76% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 48,631 psi | 75% | 2989 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 80% | 40,292 psi | 62% | 2789 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 41,191 psi | 63% | 2844 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 90% | 49,037 psi | 75% | 3048 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 43,859 psi | 68% | 2910 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,209 psi | 71% | 2858 fps | 99.2% |
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 51 powders for 6.5-300 Weatherby Mag. loaded with the .264 | 130gr | CutEdge MTH. ADI AR 2218 delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,998 fps to 3,215 fps. Alliant Reloder-50 gives the best case fill at 100 %, and 51 of the 51 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 130.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-50, Hodgdon TrailBoss, IMR 8133 Enduron 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. Hodgdon Retumbo, ReloadSwiss RS 76, ADI AR 2218 rank at the top here: for 6.5-300 Weatherby Mag. with the .264 | 130gr | CutEdge MTH 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.