Load Specifications
Load data in caliber .264 Win. Mag. with .263 | 140gr | Prvi Partizan PSP bullet and 57 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 76.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 53,374 psi | 86% | 2894 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,883 psi | 90% | 3061 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 86% | 54,824 psi | 88% | 2982 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 52,968 psi | 85% | 2995 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 98% | 55,042 psi | 88% | 3025 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,256 psi | 82% | 3064 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,287 psi | 85% | 3048 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,056 psi | 88% | 2969 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,404 psi | 87% | 2972 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 88% | 53,447 psi | 86% | 2992 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,201 psi | 89% | 2956 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,042 psi | 88% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 55,695 psi | 89% | 3048 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 52,489 psi | 84% | 3054 fps | 97.5% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 53,925 psi | 86% | 2956 fps | 97.8% |
| Bofors RP15 | <<locked>> | 92% | 56,275 psi | 90% | 3035 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 54,911 psi | 88% | 3045 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 53,447 psi | 86% | 2992 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 94% | 52,808 psi | 85% | 2989 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 56,072 psi | 90% | 2986 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,042 psi | 88% | 2969 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,259 psi | 89% | 2890 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 53,925 psi | 86% | 3114 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 60% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 53,853 psi | 86% | 2904 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 54,491 psi | 87% | 2907 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 53,214 psi | 85% | 2910 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 90% | 55,013 psi | 88% | 3035 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,820 psi | 78% | 2963 fps | 99.3% |
| Lovex S070 | <<locked>> | 82% | 56,014 psi | 90% | 2933 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,187 psi | 88% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 82% | 54,882 psi | 88% | 2959 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 49,705 psi | 80% | 2989 fps | 100% |
| Norma MRP | <<locked>> | 86% | 53,490 psi | 86% | 3009 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,912 psi | 90% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,999 psi | 90% | 3058 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 54,795 psi | 88% | 2956 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 54,404 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,537 psi | 62% | 1926 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,621 psi | 88% | 3104 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 53,969 psi | 87% | 3064 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 86% | 55,666 psi | 89% | 2953 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 86% | 54,244 psi | 87% | 2966 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,014 psi | 90% | 2933 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 53,853 psi | 86% | 2959 fps | 99.9% |
| Somchem S361 | <<locked>> | 84% | 53,417 psi | 86% | 2887 fps | 99.1% |
| Somchem S365 | <<locked>> | 82% | 53,447 psi | 86% | 2900 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 54,578 psi | 88% | 2933 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 54,244 psi | 87% | 2917 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 53,156 psi | 85% | 2930 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 86% | 53,737 psi | 86% | 2933 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 53,084 psi | 85% | 3012 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 92% | 53,606 psi | 86% | 2999 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 96% | 54,505 psi | 87% | 3064 fps | 99% |
| Vihtavuori N570 | <<locked>> | 98% | 55,550 psi | 89% | 3127 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 54,447 psi | 87% | 3045 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,172 psi | 87% | 2927 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% | 40,843 psi | 65% | 2674 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 80% | 42,264 psi | 68% | 2802 fps | 96.6% |
| ADI AR 2209 | <<locked>> | 80% | 44,860 psi | 72% | 2805 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 40,132 psi | 64% | 2743 fps | 97.1% |
| ADI AR 2217 | <<locked>> | 84% | 34,287 psi | 55% | 2595 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 47,659 psi | 76% | 2989 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 27,369 psi | 44% | 2438 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,721 psi | 83% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,802 psi | 72% | 2799 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,770 psi | 65% | 2749 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,610 psi | 64% | 2697 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,156 psi | 55% | 2628 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,367 psi | 71% | 2861 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 45,049 psi | 72% | 2910 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,614 psi | 72% | 2776 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 38,014 psi | 61% | 2684 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 33,939 psi | 54% | 2615 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 40,770 psi | 65% | 2749 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 80% | 32,576 psi | 52% | 2552 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 80% | 42,786 psi | 69% | 2743 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,989 psi | 67% | 2726 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,588 psi | 78% | 2789 fps | 100% |
| Hodgdon Retumbo | 56.4 gr | 80% | 33,344 psi | 53% | 2661 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,181 psi | 45% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,531 psi | 81% | 2848 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 51,082 psi | 82% | 2854 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,005 psi | 71% | 2736 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 39,001 psi | 63% | 2726 fps | 96.9% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,867 psi | 56% | 2661 fps | 95.7% |
| Lovex S070 | <<locked>> | 80% | 52,605 psi | 84% | 2877 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,331 psi | 57% | 2552 fps | 99% |
| Norma 204 | <<locked>> | 80% | 51,358 psi | 82% | 2904 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 28,529 psi | 46% | 2500 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 43,294 psi | 69% | 2825 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 52,344 psi | 84% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,812 psi | 62% | 2736 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 80% | 51,401 psi | 82% | 2904 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,708 psi | 56% | 2608 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,979 psi | 46% | 1722 fps | 100% |
| ReloadSwiss RS 76 | 60.4 gr | 80% | 32,503 psi | 52% | 2631 fps | 97.8% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 36,956 psi | 59% | 2723 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 45,788 psi | 73% | 2779 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 44,396 psi | 71% | 2789 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 52,605 psi | 84% | 2877 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,063 psi | 71% | 2785 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 46,760 psi | 75% | 2769 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 49,966 psi | 80% | 2848 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,788 psi | 72% | 2762 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 80% | 39,073 psi | 63% | 2638 fps | 98.5% |
| Vihtavuori N170 | <<locked>> | 92% | 49,864 psi | 80% | 2871 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 44,063 psi | 71% | 2772 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,105 psi | 69% | 2818 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 35,723 psi | 57% | 2631 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 88% | 41,147 psi | 66% | 2808 fps | 95.9% |
| Vihtavuori N570 | 67.4 gr | 92% | 44,976 psi | 72% | 2923 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,173 psi | 60% | 2749 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,205 psi | 66% | 2694 fps | 98.5% |
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 64 powders for .264 Win. Mag. loaded with the .263 | 140gr | Prvi Partizan PSP. Vihtavuori N570 delivers the highest muzzle velocity at 3,127 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,127 fps. Accurate 8700 gives the best case fill at 100 %, and 64 of the 64 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 0.263" calls for a 1:10.5 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, Vihtavuori N570, ReloadSwiss RS 76 rank at the top here: for .264 Win. Mag. with the .263 | 140gr | Prvi Partizan PSP 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.