Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 140gr | Sierra GameKing bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Accurate MAGPRO and Vihtavuori N570.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 53,780 psi | 86% | 2845 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 53,505 psi | 86% | 3015 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 86% | 55,230 psi | 89% | 2931 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 88% | 53,359 psi | 86% | 2939 fps | 99.2% |
| ADI AR 2217 | <<locked>> | 98% | 55,376 psi | 89% | 2970 fps | 99.7% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 52,852 psi | 85% | 3004 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 54,476 psi | 87% | 2993 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 55,390 psi | 89% | 2986 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,506 psi | 89% | 2920 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,781 psi | 88% | 2918 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 53,838 psi | 86% | 2936 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,608 psi | 89% | 2905 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,448 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,144 psi | 90% | 2993 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,389 psi | 87% | 2994 fps | 96.9% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 54,201 psi | 87% | 2900 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 53,330 psi | 86% | 2992 fps | 99.9% |
| Bofors RP30 | <<locked>> | 96% | 55,274 psi | 89% | 2985 fps | 99.7% |
| Bofors RP5 | <<locked>> | 88% | 53,838 psi | 86% | 2999 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 53,403 psi | 86% | 3002 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 56,434 psi | 90% | 2969 fps | 100% |
| Hodgdon H4831 | <<locked>> | 92% | 56,173 psi | 90% | 2928 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,390 psi | 89% | 2916 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,724 psi | 89% | 2843 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 54,302 psi | 87% | 3120 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,638 psi | 62% | 1854 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 54,201 psi | 87% | 2910 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,420 psi | 90% | 2883 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 53,563 psi | 86% | 2917 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 88% | 55,390 psi | 89% | 2981 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 49,574 psi | 79% | 2904 fps | 99% |
| Lovex S070 | <<locked>> | 82% | 56,405 psi | 90% | 2883 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,550 psi | 89% | 2872 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,230 psi | 89% | 2910 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 50,183 psi | 80% | 2927 fps | 100% |
| Norma MRP | <<locked>> | 86% | 53,882 psi | 86% | 2953 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,318 psi | 90% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 55,288 psi | 89% | 2986 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 82% | 55,187 psi | 88% | 2908 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 52,591 psi | 84% | 2898 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 62% | 1899 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,998 psi | 88% | 3044 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 54,273 psi | 87% | 3002 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 86% | 55,999 psi | 90% | 2900 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 86% | 54,607 psi | 88% | 2911 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 82% | 56,405 psi | 90% | 2940 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 54,215 psi | 87% | 2969 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 53,737 psi | 86% | 2836 fps | 98.8% |
| Somchem S365 | <<locked>> | 82% | 53,867 psi | 86% | 2850 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 54,955 psi | 88% | 2882 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 55,332 psi | 89% | 2785 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 53,113 psi | 85% | 2842 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 86% | 53,896 psi | 86% | 2879 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,201 psi | 87% | 2968 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 92% | 53,969 psi | 87% | 2942 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 96% | 55,100 psi | 88% | 3008 fps | 98.6% |
| Vihtavuori N570 | <<locked>> | 96% | 52,866 psi | 85% | 3001 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 54,868 psi | 88% | 2989 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,782 psi | 89% | 2896 fps | 99.9% |
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 3100 | <<locked>> | 80% | 41,234 psi | 66% | 2624 fps | 99.6% |
| Accurate MAGPRO | 60.1 gr | 80% | 40,350 psi | 65% | 2753 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 45,208 psi | 72% | 2752 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 80% | 40,495 psi | 65% | 2687 fps | 96.5% |
| ADI AR 2217 | <<locked>> | 86% | 36,985 psi | 59% | 2605 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 98% | 48,124 psi | 77% | 2929 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 82% | 29,457 psi | 47% | 2441 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,585 psi | 73% | 2815 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,938 psi | 83% | 2866 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,165 psi | 72% | 2746 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,147 psi | 66% | 2694 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,001 psi | 64% | 2645 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,476 psi | 55% | 2572 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,788 psi | 72% | 2803 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 49,023 psi | 79% | 2921 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,776 psi | 77% | 2781 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 38,363 psi | 62% | 2697 fps | 97.8% |
| Bofors RP30 | <<locked>> | 84% | 36,738 psi | 59% | 2618 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 41,147 psi | 66% | 2759 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 82% | 33,185 psi | 53% | 2572 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 80% | 53,229 psi | 85% | 2917 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 38,087 psi | 61% | 2579 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,351 psi | 68% | 2675 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,791 psi | 78% | 2741 fps | 100% |
| Hodgdon Retumbo | 56.8 gr | 80% | 33,663 psi | 54% | 2671 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 45% | 1655 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,923 psi | 82% | 2858 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,673 psi | 75% | 2725 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,338 psi | 71% | 2746 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 80% | 41,727 psi | 67% | 2723 fps | 97% |
| IMR 8133 Enduron | <<locked>> | 92% | 37,695 psi | 60% | 2663 fps | 96% |
| Lovex S070 | <<locked>> | 80% | 52,968 psi | 85% | 2830 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,505 psi | 57% | 2499 fps | 98.5% |
| Norma 204 | <<locked>> | 80% | 51,547 psi | 83% | 2848 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 30,864 psi | 49% | 2503 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 43,468 psi | 70% | 2765 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 52,765 psi | 85% | 2846 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 43,990 psi | 71% | 2784 fps | 98% |
| Ramshot Hunter | <<locked>> | 80% | 51,547 psi | 83% | 2849 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 38,522 psi | 62% | 2635 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,950 psi | 46% | 1696 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 32,793 psi | 53% | 2571 fps | 97% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 40,118 psi | 64% | 2728 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 46,180 psi | 74% | 2727 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 80% | 44,802 psi | 72% | 2737 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 80% | 52,968 psi | 85% | 2887 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,454 psi | 71% | 2792 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 47,065 psi | 75% | 2718 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 50,430 psi | 81% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,136 psi | 72% | 2713 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 52,127 psi | 84% | 2738 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,290 psi | 61% | 2563 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 44,469 psi | 71% | 2721 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,234 psi | 66% | 2715 fps | 96.2% |
| Vihtavuori N565 | <<locked>> | 82% | 38,551 psi | 62% | 2637 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 88% | 41,495 psi | 67% | 2747 fps | 95.1% |
| Vihtavuori N570 | 70 gr | 94% | 49,139 psi | 79% | 2934 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,449 psi | 60% | 2691 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,310 psi | 73% | 2717 fps | 98.8% |
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 59 powders for .264 Win. Mag. loaded with the .264 | 140gr | Sierra GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,120 fps. ADI AR 2218 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Hodgdon TrailBoss 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, Accurate MAGPRO, Vihtavuori N570 rank at the top here: for .264 Win. Mag. with the .264 | 140gr | Sierra GameKing 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.