Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 142gr | Sierra MatchKing bullet and 62 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 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>> | 90% | 56,318 psi | 90% | 2917 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 54,984 psi | 88% | 3022 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 86% | 54,012 psi | 87% | 2949 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 55,738 psi | 89% | 3018 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 53,998 psi | 87% | 2989 fps | 99.8% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,415 psi | 81% | 3025 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,359 psi | 84% | 3012 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 54,230 psi | 87% | 2946 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 54,259 psi | 87% | 2933 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 53,635 psi | 86% | 2936 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,130 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 54,143 psi | 87% | 2920 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 53,838 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 54,375 psi | 87% | 3009 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 3081 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 53,127 psi | 85% | 2920 fps | 97.6% |
| Bofors RP15 | <<locked>> | 92% | 55,317 psi | 89% | 2999 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 53,824 psi | 86% | 3005 fps | 99.8% |
| Bofors RP5 | <<locked>> | 90% | 56,130 psi | 90% | 3012 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,579 psi | 89% | 3012 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,158 psi | 88% | 2949 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 54,085 psi | 87% | 2933 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 54,578 psi | 88% | 2858 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 52,721 psi | 85% | 3074 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,449 psi | 60% | 1857 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 53,214 psi | 85% | 2871 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 53,548 psi | 86% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,985 psi | 90% | 2933 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 90% | 53,998 psi | 87% | 2999 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,805 psi | 77% | 2923 fps | 99.2% |
| Lovex S070 | <<locked>> | 82% | 55,347 psi | 89% | 2900 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 54,157 psi | 87% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 82% | 54,056 psi | 87% | 2927 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 2953 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,173 psi | 90% | 3031 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,172 psi | 88% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 54,969 psi | 88% | 3022 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 53,969 psi | 87% | 2923 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 53,330 psi | 86% | 2949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,493 psi | 62% | 1903 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,347 psi | 89% | 2986 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 53,316 psi | 85% | 3064 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 52,533 psi | 84% | 3022 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 86% | 54,868 psi | 88% | 2917 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 86% | 53,417 psi | 86% | 2930 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 82% | 55,347 psi | 89% | 2900 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,796 psi | 89% | 2851 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 53,026 psi | 85% | 2927 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 56,304 psi | 90% | 2910 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 56,144 psi | 90% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 53,853 psi | 86% | 2900 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 53,621 psi | 86% | 2884 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,927 psi | 90% | 2956 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 82% | 55,854 psi | 90% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,173 psi | 90% | 2946 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,767 psi | 89% | 3031 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 56,159 psi | 90% | 3018 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 53,548 psi | 86% | 3028 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 98% | 54,331 psi | 87% | 3084 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,130 psi | 90% | 2854 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 53,229 psi | 85% | 3009 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 53,490 psi | 86% | 2897 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% | 40,190 psi | 64% | 2644 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 80% | 41,495 psi | 67% | 2766 fps | 96.5% |
| ADI AR 2209 | <<locked>> | 80% | 44,179 psi | 71% | 2772 fps | 99% |
| ADI AR 2213 | <<locked>> | 80% | 39,537 psi | 63% | 2707 fps | 97% |
| ADI AR 2217 | <<locked>> | 84% | 33,663 psi | 54% | 2562 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 98% | 46,818 psi | 75% | 2949 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 82% | 28,761 psi | 46% | 2470 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,570 psi | 71% | 2772 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,894 psi | 82% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,164 psi | 71% | 2766 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,132 psi | 64% | 2717 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,870 psi | 62% | 2661 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,562 psi | 54% | 2595 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,526 psi | 70% | 2825 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,019 psi | 71% | 2874 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,135 psi | 71% | 2746 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 37,362 psi | 60% | 2651 fps | 97.5% |
| Bofors RP30 | <<locked>> | 82% | 33,344 psi | 53% | 2582 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 40,132 psi | 64% | 2717 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 80% | 32,082 psi | 51% | 2523 fps | 95.1% |
| Hodgdon H4831 | <<locked>> | 80% | 42,206 psi | 68% | 2713 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,394 psi | 66% | 2697 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,819 psi | 77% | 2756 fps | 100% |
| Hodgdon Retumbo | 55 gr | 80% | 32,793 psi | 53% | 2625 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 45% | 1660 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,879 psi | 80% | 2815 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 50,343 psi | 81% | 2822 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,410 psi | 70% | 2703 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 38,377 psi | 62% | 2690 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,055 psi | 55% | 2621 fps | 95.5% |
| Lovex S070 | <<locked>> | 80% | 51,895 psi | 83% | 2844 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,621 psi | 56% | 2520 fps | 98.9% |
| Norma 204 | <<locked>> | 80% | 50,531 psi | 81% | 2867 fps | 99.7% |
| Norma 217 | <<locked>> | 86% | 29,907 psi | 48% | 2530 fps | 96% |
| Norma MRP | <<locked>> | 80% | 42,438 psi | 68% | 2789 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 51,605 psi | 83% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,014 psi | 61% | 2697 fps | 97% |
| Ramshot Hunter | <<locked>> | 80% | 50,560 psi | 81% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,185 psi | 55% | 2579 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 46% | 1699 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,663 psi | 83% | 2930 fps | 100% |
| ReloadSwiss RS 76 | 58.9 gr | 80% | 31,937 psi | 51% | 2598 fps | 97.6% |
| ReloadSwiss RS 80 | 65.3 gr | 88% | 38,870 psi | 62% | 2753 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 45,165 psi | 72% | 2746 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 80% | 43,700 psi | 70% | 2753 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 51,895 psi | 83% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,286 psi | 84% | 2799 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,366 psi | 70% | 2749 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 46,093 psi | 74% | 2736 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 49,168 psi | 79% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,179 psi | 71% | 2733 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 80% | 38,464 psi | 62% | 2605 fps | 98.3% |
| Vihtavuori N170 | <<locked>> | 94% | 52,344 psi | 84% | 2894 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 52,344 psi | 84% | 2858 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,294 psi | 69% | 2740 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,293 psi | 68% | 2782 fps | 97.3% |
| Vihtavuori N565 | <<locked>> | 80% | 34,983 psi | 56% | 2598 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 88% | 40,161 psi | 64% | 2769 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 94% | 47,195 psi | 76% | 2953 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,359 psi | 84% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,187 psi | 58% | 2717 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,640 psi | 65% | 2661 fps | 98.4% |
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 62 powders for .264 Win. Mag. loaded with the .264 | 142gr | Sierra MatchKing. Vihtavuori N570 delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,084 fps. ADI AR 2218 gives the best case fill at 100 %, and 62 of the 62 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 142.0 gr projectile in 0.264" calls for a 1:8.5 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, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .264 Win. Mag. with the .264 | 142gr | 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.