Load Specifications
Load data in caliber 6.5-300 Weatherby Mag. with .264 | 130gr | Norma VLD Diamond bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Alliant Reloder-33.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 57,914 psi | 89% | 3035 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 56,869 psi | 88% | 3140 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 84% | 58,726 psi | 90% | 3123 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 57,421 psi | 88% | 3140 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 94% | 56,753 psi | 87% | 3120 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 98% | 57,464 psi | 88% | 3245 fps | 98.5% |
| ADI AR 2225 | <<locked>> | 96% | 56,260 psi | 87% | 3143 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 58,291 psi | 90% | 3110 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,914 psi | 89% | 3130 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 56,275 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 56,927 psi | 88% | 3114 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 57,130 psi | 88% | 3123 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 55,405 psi | 85% | 3150 fps | 97.8% |
| Alliant Reloder-50 | <<locked>> | 98% | 55,288 psi | 85% | 3136 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 57,580 psi | 89% | 3094 fps | 98.4% |
| Bofors RP15 | <<locked>> | 88% | 57,348 psi | 88% | 3120 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,797 psi | 87% | 3130 fps | 99.9% |
| Bofors RP5 | <<locked>> | 86% | 57,914 psi | 89% | 3130 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 58,175 psi | 90% | 3140 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 56,173 psi | 86% | 3068 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 55,085 psi | 85% | 3048 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,391 psi | 87% | 3202 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,985 psi | 58% | 2001 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 56,362 psi | 87% | 3045 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 86% | 56,115 psi | 86% | 3123 fps | 99.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 55,143 psi | 85% | 3120 fps | 99.8% |
| Lovex S071 | <<locked>> | 90% | 56,101 psi | 86% | 3009 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,695 psi | 87% | 3143 fps | 100% |
| Norma MRP | <<locked>> | 84% | 58,160 psi | 90% | 3146 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 57,609 psi | 89% | 3150 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 55,912 psi | 86% | 3068 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,914 psi | 60% | 2044 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 57,464 psi | 88% | 3189 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 56,449 psi | 87% | 3153 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 82% | 55,201 psi | 85% | 3028 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 84% | 58,044 psi | 89% | 3100 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,667 psi | 89% | 3097 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,623 psi | 87% | 3022 fps | 99.5% |
| Somchem S385 | <<locked>> | 84% | 58,276 psi | 90% | 3068 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 58,407 psi | 90% | 3058 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 57,812 psi | 89% | 3081 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 84% | 57,986 psi | 89% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 57,450 psi | 88% | 3150 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 88% | 54,969 psi | 85% | 3081 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 92% | 56,956 psi | 88% | 3159 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 94% | 58,421 psi | 90% | 3225 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 86% | 57,174 psi | 88% | 3127 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 58,276 psi | 90% | 3068 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% | 47,239 psi | 73% | 2858 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 49,313 psi | 76% | 2999 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 80% | 51,445 psi | 79% | 2999 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 46,528 psi | 72% | 2936 fps | 98.4% |
| ADI AR 2217 | <<locked>> | 80% | 34,838 psi | 54% | 2661 fps | 95.1% |
| ADI AR 2218 | 82.2 gr | 92% | 45,890 psi | 71% | 3005 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 32,169 psi | 50% | 2628 fps | 97.1% |
| Alliant Reloder-19 | <<locked>> | 80% | 51,111 psi | 79% | 2986 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 47,282 psi | 73% | 2940 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 46,224 psi | 71% | 2871 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 40,393 psi | 62% | 2812 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 53,055 psi | 82% | 3058 fps | 100% |
| Alliant Reloder-33 | 81.9 gr | 90% | 47,543 psi | 73% | 2995 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 94% | 47,674 psi | 73% | 2986 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,469 psi | 68% | 2841 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 44,135 psi | 68% | 2874 fps | 98.7% |
| Bofors RP30 | <<locked>> | 80% | 37,652 psi | 58% | 2740 fps | 96.3% |
| Bofors RP5 | <<locked>> | 80% | 47,282 psi | 73% | 2940 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 37,927 psi | 58% | 2746 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 80% | 49,052 psi | 75% | 2936 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 48,080 psi | 74% | 2917 fps | 98.2% |
| Hodgdon Retumbo | 67.5 gr | 80% | 39,450 psi | 61% | 2864 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,471 psi | 44% | 1788 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,690 psi | 76% | 2923 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 45,426 psi | 70% | 2920 fps | 98.2% |
| IMR 8133 Enduron | <<locked>> | 86% | 36,680 psi | 56% | 2730 fps | 95.7% |
| Lovex S071 | <<locked>> | 80% | 40,828 psi | 63% | 2730 fps | 99.6% |
| Norma 217 | <<locked>> | 82% | 32,227 psi | 50% | 2628 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 50,560 psi | 78% | 3015 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 46,108 psi | 71% | 2943 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 80% | 41,408 psi | 64% | 2802 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,356 psi | 45% | 1834 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,885 psi | 60% | 2835 fps | 99.2% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 41,698 psi | 64% | 2858 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 51,851 psi | 80% | 2969 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 50,879 psi | 78% | 2979 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,531 psi | 78% | 2972 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 52,939 psi | 81% | 2956 fps | 99.1% |
| Somchem S385 | <<locked>> | 80% | 51,126 psi | 79% | 2949 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,904 psi | 69% | 2822 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 88% | 50,517 psi | 78% | 2949 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 50,923 psi | 78% | 2953 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 50,009 psi | 77% | 3015 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 80% | 41,843 psi | 64% | 2818 fps | 97% |
| Vihtavuori N568 | <<locked>> | 84% | 42,699 psi | 66% | 2877 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 88% | 46,963 psi | 72% | 3002 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 45,556 psi | 70% | 2940 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 47,500 psi | 73% | 2884 fps | 99.4% |
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 48 powders for 6.5-300 Weatherby Mag. loaded with the .264 | 130gr | Norma VLD Diamond. ADI AR 2218 delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,245 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 48 of the 48 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. Hodgdon TrailBoss, ReloadSwiss RS 14 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, ADI AR 2218, Alliant Reloder-33 rank at the top here: for 6.5-300 Weatherby Mag. with the .264 | 130gr | Norma VLD Diamond 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.