Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 144gr | Sierra MatchKing 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, Vihtavuori N570 and ReloadSwiss RS 80.
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% | 53,388 psi | 86% | 2858 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,840 psi | 90% | 3022 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 86% | 54,795 psi | 88% | 2943 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 52,779 psi | 85% | 2953 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 98% | 54,897 psi | 88% | 2986 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,184 psi | 82% | 3028 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,243 psi | 85% | 3009 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 54,955 psi | 88% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,071 psi | 88% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,360 psi | 87% | 2930 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 53,258 psi | 85% | 2949 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,013 psi | 88% | 2913 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 54,752 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 55,347 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 3081 fps | 98.4% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 53,737 psi | 86% | 2917 fps | 97.9% |
| Bofors RP15 | <<locked>> | 92% | 56,159 psi | 90% | 2995 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 54,708 psi | 88% | 3002 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 53,258 psi | 85% | 2949 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 52,591 psi | 84% | 2949 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 55,941 psi | 90% | 2946 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 54,868 psi | 88% | 2927 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,347 psi | 89% | 2848 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 53,650 psi | 86% | 3068 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 60% | 1847 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 53,925 psi | 86% | 2864 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 54,288 psi | 87% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 53,200 psi | 85% | 2867 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 90% | 54,882 psi | 88% | 2995 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,689 psi | 78% | 2923 fps | 99.4% |
| Lovex S070 | <<locked>> | 82% | 56,101 psi | 90% | 2890 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 54,984 psi | 88% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 82% | 54,781 psi | 88% | 2920 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 49,588 psi | 80% | 2949 fps | 100% |
| Norma MRP | <<locked>> | 86% | 53,330 psi | 86% | 2969 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,956 psi | 90% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,956 psi | 90% | 3018 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 54,737 psi | 88% | 2917 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 54,230 psi | 87% | 2943 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,609 psi | 62% | 1893 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,231 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,302 psi | 87% | 3061 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 53,780 psi | 86% | 3025 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 86% | 55,564 psi | 89% | 2910 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 54,186 psi | 87% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,101 psi | 90% | 2890 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 53,795 psi | 86% | 2920 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 53,287 psi | 85% | 2848 fps | 99.2% |
| Somchem S365 | <<locked>> | 82% | 53,519 psi | 86% | 2861 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 54,578 psi | 88% | 2894 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 54,389 psi | 87% | 2877 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 53,069 psi | 85% | 2894 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 86% | 53,664 psi | 86% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 52,953 psi | 85% | 2969 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 92% | 53,374 psi | 86% | 2959 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 96% | 54,476 psi | 87% | 3025 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 98% | 55,593 psi | 89% | 3091 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 90% | 54,346 psi | 87% | 3002 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,273 psi | 87% | 2890 fps | 100% |
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% | 40,886 psi | 66% | 2638 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 80% | 42,235 psi | 68% | 2766 fps | 96.9% |
| ADI AR 2209 | <<locked>> | 80% | 44,875 psi | 72% | 2769 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 80% | 40,161 psi | 64% | 2707 fps | 97.4% |
| ADI AR 2217 | <<locked>> | 84% | 34,214 psi | 55% | 2566 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 96% | 44,382 psi | 71% | 2884 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 80% | 27,383 psi | 44% | 2411 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,237 psi | 73% | 2766 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,677 psi | 83% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,817 psi | 72% | 2762 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,843 psi | 65% | 2717 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,581 psi | 63% | 2657 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,171 psi | 55% | 2595 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,353 psi | 71% | 2822 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 45,049 psi | 72% | 2877 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,657 psi | 72% | 2743 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 37,985 psi | 61% | 2651 fps | 97.8% |
| Bofors RP30 | <<locked>> | 82% | 33,997 psi | 55% | 2585 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 40,843 psi | 65% | 2717 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 80% | 32,445 psi | 52% | 2520 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 80% | 42,656 psi | 68% | 2707 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,032 psi | 67% | 2694 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,559 psi | 78% | 2749 fps | 100% |
| Hodgdon Retumbo | 55.2 gr | 80% | 33,388 psi | 54% | 2628 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,224 psi | 45% | 1650 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,546 psi | 81% | 2808 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,821 psi | 81% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,005 psi | 71% | 2703 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 80% | 38,827 psi | 62% | 2687 fps | 97% |
| IMR 8133 Enduron | <<locked>> | 88% | 32,547 psi | 52% | 2569 fps | 95% |
| Lovex S070 | <<locked>> | 80% | 52,591 psi | 84% | 2838 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,244 psi | 57% | 2516 fps | 99.1% |
| Norma 204 | <<locked>> | 80% | 51,256 psi | 82% | 2861 fps | 99.8% |
| Norma 217 | <<locked>> | 84% | 28,587 psi | 46% | 2474 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 43,192 psi | 69% | 2789 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 52,373 psi | 84% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,725 psi | 62% | 2700 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 80% | 51,285 psi | 82% | 2864 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,650 psi | 56% | 2575 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,022 psi | 47% | 1693 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,504 psi | 84% | 2923 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 32,489 psi | 52% | 2602 fps | 98% |
| ReloadSwiss RS 80 | 64 gr | 86% | 36,724 psi | 59% | 2684 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 45,803 psi | 73% | 2740 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 80% | 44,411 psi | 71% | 2753 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 52,591 psi | 84% | 2838 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,063 psi | 71% | 2746 fps | 99.2% |
| Somchem S361 | <<locked>> | 80% | 46,717 psi | 75% | 2733 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 49,980 psi | 80% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,846 psi | 72% | 2730 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 80% | 39,073 psi | 63% | 2605 fps | 98.6% |
| Vihtavuori N170 | <<locked>> | 92% | 49,719 psi | 80% | 2835 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 44,005 psi | 71% | 2733 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,004 psi | 69% | 2779 fps | 97.7% |
| Vihtavuori N565 | <<locked>> | 80% | 35,621 psi | 57% | 2598 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 86% | 38,159 psi | 61% | 2703 fps | 95.1% |
| Vihtavuori N570 | 65.9 gr | 92% | 44,802 psi | 72% | 2887 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,101 psi | 59% | 2713 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,089 psi | 66% | 2654 fps | 98.6% |
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 | 144gr | Sierra MatchKing. Vihtavuori N570 delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,091 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 60–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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, Vihtavuori N570, ReloadSwiss RS 80 rank at the top here: for .264 Win. Mag. with the .264 | 144gr | Sierra MatchKing 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.