Load Specifications
Load data in caliber 6.5-300 Weatherby Mag. with .264 | 136gr | Peregrine VRG-2 bullet and 50 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 55,376 psi | 85% | 2943 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 51,256 psi | 79% | 2969 fps | 96.9% |
| Accurate High Country | <<locked>> | 82% | 57,638 psi | 89% | 3104 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 84% | 58,769 psi | 90% | 3117 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 82% | 56,550 psi | 87% | 3031 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 55,303 psi | 85% | 3048 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 92% | 54,839 psi | 84% | 3031 fps | 99.9% |
| ADI AR 2218 | <<locked>> | 96% | 55,390 psi | 85% | 3153 fps | 98.6% |
| ADI AR 2225 | <<locked>> | 96% | 58,494 psi | 90% | 3114 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 55,970 psi | 86% | 3015 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 55,738 psi | 86% | 3038 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 57,943 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 55,129 psi | 85% | 3025 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 57,537 psi | 89% | 3130 fps | 98.6% |
| Alliant Reloder-50 | <<locked>> | 98% | 57,435 psi | 88% | 3117 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 55,564 psi | 86% | 3005 fps | 98.5% |
| Bofors RP15 | <<locked>> | 86% | 55,419 psi | 85% | 3031 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 58,682 psi | 90% | 3104 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 55,738 psi | 86% | 3038 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 56,202 psi | 86% | 3051 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 57,783 psi | 89% | 3038 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 84% | 56,652 psi | 87% | 3022 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 88% | 54,795 psi | 84% | 3114 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,884 psi | 58% | 1962 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 57,827 psi | 89% | 3015 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 57,972 psi | 89% | 3097 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 98% | 57,276 psi | 88% | 3097 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 57,377 psi | 88% | 2969 fps | 100% |
| Norma 217 | <<locked>> | 98% | 58,769 psi | 90% | 3117 fps | 100% |
| Norma MRP | <<locked>> | 82% | 56,014 psi | 86% | 3051 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 55,216 psi | 85% | 3051 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 88% | 57,856 psi | 89% | 3041 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,972 psi | 60% | 2011 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 55,434 psi | 85% | 3097 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 58,624 psi | 90% | 3130 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 82% | 56,768 psi | 87% | 3002 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 82% | 55,840 psi | 86% | 3009 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 53,113 psi | 82% | 2979 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 55,477 psi | 85% | 3005 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 57,986 psi | 89% | 2992 fps | 99.8% |
| Somchem S385 | <<locked>> | 82% | 55,999 psi | 86% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 56,376 psi | 87% | 2969 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 55,579 psi | 86% | 2992 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 55,709 psi | 86% | 2972 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 55,361 psi | 85% | 3058 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 88% | 56,637 psi | 87% | 3054 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 90% | 54,795 psi | 84% | 3064 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 92% | 56,478 psi | 87% | 3133 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 55,143 psi | 85% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 55,956 psi | 86% | 2979 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 48,138 psi | 74% | 2822 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 47,456 psi | 73% | 2894 fps | 95.8% |
| Accurate High Country | <<locked>> | 80% | 53,635 psi | 83% | 3031 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 80% | 50,763 psi | 78% | 2972 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 80% | 52,823 psi | 81% | 2969 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 48,080 psi | 74% | 2913 fps | 99.1% |
| ADI AR 2217 | <<locked>> | 80% | 35,694 psi | 55% | 2638 fps | 96.1% |
| ADI AR 2218 | <<locked>> | 90% | 44,164 psi | 68% | 2917 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 32,938 psi | 51% | 2598 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 80% | 52,373 psi | 81% | 2953 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,704 psi | 75% | 2913 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 47,471 psi | 73% | 2835 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,640 psi | 64% | 2782 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 45,701 psi | 70% | 2904 fps | 95.7% |
| Alliant Reloder-50 | <<locked>> | 92% | 45,745 psi | 70% | 2890 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,527 psi | 70% | 2818 fps | 96.2% |
| Bofors RP15 | <<locked>> | 80% | 45,266 psi | 70% | 2844 fps | 99.2% |
| Bofors RP30 | <<locked>> | 80% | 38,580 psi | 59% | 2710 fps | 97.1% |
| Bofors RP5 | <<locked>> | 80% | 48,704 psi | 75% | 2913 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 80% | 38,972 psi | 60% | 2720 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 80% | 50,285 psi | 77% | 2910 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 80% | 49,472 psi | 76% | 2894 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 40,698 psi | 63% | 2838 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,500 psi | 44% | 1759 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 50,836 psi | 78% | 2894 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 80% | 46,775 psi | 72% | 2894 fps | 98.9% |
| IMR 8133 Enduron | <<locked>> | 84% | 35,157 psi | 54% | 2638 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 41,408 psi | 64% | 2690 fps | 99.9% |
| Norma 217 | <<locked>> | 80% | 30,850 psi | 47% | 2533 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 52,127 psi | 80% | 2986 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 47,558 psi | 73% | 2913 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 80% | 42,699 psi | 66% | 2776 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,225 psi | 45% | 1798 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 40,234 psi | 62% | 2808 fps | 99.7% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 39,972 psi | 62% | 2762 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 53,127 psi | 82% | 2940 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 80% | 52,185 psi | 80% | 2946 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 49,429 psi | 76% | 2913 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,837 psi | 80% | 2946 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 54,230 psi | 83% | 2930 fps | 99.5% |
| Somchem S385 | <<locked>> | 80% | 52,446 psi | 81% | 2920 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 45,963 psi | 71% | 2792 fps | 99.7% |
| Vihtavuori N170 | <<locked>> | 86% | 48,370 psi | 74% | 2861 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 52,112 psi | 80% | 2913 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 51,532 psi | 79% | 2989 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 80% | 42,917 psi | 66% | 2792 fps | 97.7% |
| Vihtavuori N568 | <<locked>> | 82% | 41,017 psi | 63% | 2785 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 86% | 45,208 psi | 70% | 2910 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 47,398 psi | 73% | 2907 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,631 psi | 75% | 2851 fps | 99.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 57 powders for 6.5-300 Weatherby Mag. loaded with the .264 | 136gr | Peregrine VRG-2. ADI AR 2218 delivers the highest muzzle velocity at 3,153 fps; across all powders the maximum-charge window runs from 1,962 fps to 3,153 fps. Accurate 8700 gives the best case fill at 100 %, and 57 of the 57 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 136.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, Hodgdon US 869 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, Hodgdon US 869, Lovex D100, Ramshot LRT 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.