Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 140gr | Speer Impact bullet and 66 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% | 55,521 psi | 89% | 2923 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,188 psi | 90% | 2943 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 54,186 psi | 87% | 3025 fps | 99% |
| ADI AR 2209 | <<locked>> | 86% | 53,272 psi | 85% | 2953 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 54,940 psi | 88% | 3022 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 98% | 53,258 psi | 85% | 2992 fps | 99.7% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,676 psi | 80% | 3025 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,547 psi | 83% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 53,795 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 52,924 psi | 85% | 2943 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,332 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 53,388 psi | 86% | 2930 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 53,243 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 53,795 psi | 86% | 3018 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 3084 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,057 psi | 90% | 2986 fps | 98% |
| Bofors RP15 | <<locked>> | 92% | 54,781 psi | 88% | 3009 fps | 99.9% |
| Bofors RP30 | <<locked>> | 96% | 52,982 psi | 85% | 3009 fps | 99.7% |
| Bofors RP5 | <<locked>> | 90% | 55,332 psi | 89% | 3018 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,781 psi | 88% | 3015 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,723 psi | 88% | 2959 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 53,650 psi | 86% | 2943 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 53,838 psi | 86% | 2867 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,637 psi | 89% | 3140 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,463 psi | 60% | 1867 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,130 psi | 90% | 2933 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 52,852 psi | 85% | 2881 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,376 psi | 89% | 2940 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 90% | 53,200 psi | 85% | 3002 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,007 psi | 75% | 2927 fps | 99% |
| Lovex S065 | <<locked>> | 82% | 56,318 psi | 90% | 2907 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,708 psi | 88% | 2907 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 53,432 psi | 86% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 82% | 53,374 psi | 86% | 2933 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 47,761 psi | 77% | 2956 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,361 psi | 89% | 3038 fps | 100% |
| Norma URP | <<locked>> | 82% | 54,491 psi | 87% | 2923 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 54,114 psi | 87% | 3025 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 53,301 psi | 85% | 2933 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 52,460 psi | 84% | 2953 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,508 psi | 62% | 1916 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,347 psi | 90% | 2966 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,824 psi | 88% | 2995 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 52,446 psi | 84% | 3071 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,782 psi | 89% | 3094 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 86% | 54,201 psi | 87% | 2923 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 88% | 56,376 psi | 90% | 2992 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,318 psi | 90% | 2907 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,708 psi | 88% | 2907 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,201 psi | 89% | 2858 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,956 psi | 90% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,622 psi | 89% | 2917 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 55,637 psi | 89% | 2930 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 53,127 psi | 85% | 2907 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,999 psi | 90% | 2913 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,260 psi | 90% | 2943 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 55,172 psi | 88% | 2959 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 82% | 55,187 psi | 88% | 2917 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,405 psi | 89% | 2956 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,955 psi | 88% | 3038 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 94% | 55,608 psi | 89% | 3028 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 96% | 52,678 psi | 84% | 3031 fps | 98.6% |
| Vihtavuori N570 | <<locked>> | 98% | 53,664 psi | 86% | 3091 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,463 psi | 89% | 2864 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,304 psi | 90% | 3071 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 52,808 psi | 85% | 2904 fps | 99.8% |
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% | 39,595 psi | 63% | 2648 fps | 99.6% |
| Accurate 4350 | <<locked>> | 80% | 52,417 psi | 84% | 2887 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 40,857 psi | 66% | 2769 fps | 96.1% |
| ADI AR 2209 | <<locked>> | 80% | 43,772 psi | 70% | 2782 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 80% | 38,972 psi | 62% | 2710 fps | 96.6% |
| ADI AR 2217 | <<locked>> | 86% | 35,549 psi | 57% | 2628 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 98% | 46,137 psi | 74% | 2949 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 82% | 28,340 psi | 45% | 2470 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,183 psi | 80% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,569 psi | 70% | 2769 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,537 psi | 63% | 2720 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,464 psi | 62% | 2671 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,214 psi | 53% | 2602 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,786 psi | 69% | 2831 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 46,630 psi | 75% | 2943 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 46,354 psi | 74% | 2805 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 36,985 psi | 59% | 2657 fps | 97.2% |
| Bofors RP30 | <<locked>> | 84% | 35,201 psi | 56% | 2644 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 39,537 psi | 63% | 2720 fps | 98% |
| Hodgdon H1000 | <<locked>> | 82% | 33,895 psi | 54% | 2585 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 80% | 41,626 psi | 67% | 2717 fps | 96.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,828 psi | 65% | 2697 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,398 psi | 76% | 2766 fps | 100% |
| Hodgdon Retumbo | 54.9 gr | 80% | 32,285 psi | 52% | 2625 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 45% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,516 psi | 79% | 2825 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 49,676 psi | 80% | 2831 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,105 psi | 69% | 2713 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 80% | 37,797 psi | 61% | 2694 fps | 96.3% |
| IMR 8133 Enduron | <<locked>> | 90% | 33,489 psi | 54% | 2625 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 53,055 psi | 85% | 2858 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,532 psi | 83% | 2858 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,272 psi | 55% | 2526 fps | 98.6% |
| Norma 204 | <<locked>> | 80% | 49,908 psi | 80% | 2874 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 29,530 psi | 47% | 2530 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 41,785 psi | 67% | 2792 fps | 99.4% |
| Norma URP | <<locked>> | 80% | 51,169 psi | 82% | 2871 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,405 psi | 60% | 2700 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 80% | 49,864 psi | 80% | 2877 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,605 psi | 54% | 2579 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 46% | 1713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,736 psi | 85% | 2913 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,908 psi | 82% | 2936 fps | 100% |
| ReloadSwiss RS 76 | 58.8 gr | 80% | 31,415 psi | 50% | 2598 fps | 97.1% |
| ReloadSwiss RS 80 | 65.2 gr | 88% | 38,174 psi | 61% | 2753 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 44,788 psi | 72% | 2753 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 80% | 43,105 psi | 69% | 2759 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,055 psi | 85% | 2858 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,532 psi | 83% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,909 psi | 83% | 2808 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,757 psi | 69% | 2753 fps | 98.7% |
| Somchem S361 | <<locked>> | 80% | 45,556 psi | 73% | 2743 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 48,718 psi | 78% | 2825 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,584 psi | 70% | 2736 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 52,388 psi | 84% | 2861 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,913 psi | 61% | 2612 fps | 98.1% |
| Vihtavuori N170 | <<locked>> | 94% | 51,619 psi | 83% | 2897 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 51,692 psi | 83% | 2864 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,873 psi | 69% | 2749 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,669 psi | 67% | 2785 fps | 97% |
| Vihtavuori N565 | <<locked>> | 82% | 36,869 psi | 59% | 2661 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 88% | 39,668 psi | 64% | 2772 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 94% | 46,383 psi | 74% | 2953 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,706 psi | 83% | 2812 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,447 psi | 57% | 2717 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,074 psi | 64% | 2667 fps | 98.1% |
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 72 powders for .264 Win. Mag. loaded with the .264 | 140gr | Speer Impact. Hodgdon Retumbo delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,140 fps. Accurate 8700 gives the best case fill at 100 %, and 72 of the 72 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 140.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2218, ADI AR 2225 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 | 140gr | Speer Impact they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 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.