Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 128gr | MRR Green Long Range bullet and 70 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 Accurate MAGPRO.
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>> | 92% | 55,274 psi | 89% | 3038 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 52,649 psi | 84% | 3012 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 53,824 psi | 86% | 3136 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 88% | 53,534 psi | 86% | 3077 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 92% | 54,955 psi | 88% | 3140 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,098 psi | 85% | 3104 fps | 99.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 3061 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 53,722 psi | 86% | 3071 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 84% | 53,766 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,113 psi | 85% | 3061 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,216 psi | 89% | 3136 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,171 psi | 85% | 3051 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,260 psi | 90% | 3169 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 53,200 psi | 85% | 3136 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,391 psi | 90% | 3097 fps | 97.2% |
| Bofors RP15 | <<locked>> | 94% | 54,418 psi | 87% | 3123 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,927 psi | 90% | 3176 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 55,216 psi | 89% | 3136 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 54,491 psi | 87% | 3012 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 54,607 psi | 88% | 3130 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 54,027 psi | 87% | 3068 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 54,665 psi | 88% | 3071 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,606 psi | 86% | 3054 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,882 psi | 86% | 2989 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,056 psi | 88% | 3255 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,549 psi | 87% | 3104 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,304 psi | 60% | 1949 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,347 psi | 90% | 3054 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,869 psi | 90% | 3035 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,113 psi | 85% | 3005 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,564 psi | 89% | 3054 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 92% | 53,040 psi | 85% | 3117 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,047 psi | 69% | 2959 fps | 97.4% |
| Lovex S065 | <<locked>> | 82% | 53,461 psi | 86% | 2982 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,984 psi | 88% | 3031 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,142 psi | 85% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,693 psi | 86% | 3054 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 43,453 psi | 70% | 2989 fps | 99.3% |
| Norma MRP | <<locked>> | 90% | 55,027 psi | 88% | 3156 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,578 psi | 88% | 3051 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,664 psi | 86% | 3136 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 84% | 53,447 psi | 86% | 3054 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,246 psi | 90% | 3130 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,072 psi | 61% | 1991 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,362 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,737 psi | 88% | 3123 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 56,043 psi | 90% | 3251 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 3199 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 88% | 54,389 psi | 87% | 3041 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 56,246 psi | 90% | 3114 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 54,491 psi | 87% | 3012 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,461 psi | 86% | 2982 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,984 psi | 88% | 3031 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,956 psi | 90% | 2986 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,825 psi | 90% | 3107 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 55,941 psi | 90% | 3031 fps | 98.7% |
| Somchem S365 | <<locked>> | 86% | 55,361 psi | 89% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 52,997 psi | 85% | 3022 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 84% | 56,434 psi | 90% | 3041 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,347 psi | 90% | 3061 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,535 psi | 89% | 3048 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,288 psi | 89% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,752 psi | 88% | 3153 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 96% | 55,187 psi | 88% | 3136 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 3202 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,823 psi | 85% | 3189 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,695 psi | 89% | 2992 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,259 psi | 87% | 3071 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,129 psi | 88% | 3192 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 52,953 psi | 85% | 3018 fps | 99.5% |
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% | 36,883 psi | 59% | 2694 fps | 98.6% |
| Accurate 4350 | <<locked>> | 80% | 49,139 psi | 79% | 2956 fps | 100% |
| Accurate MAGPRO | 61.2 gr | 84% | 43,685 psi | 70% | 2940 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 40,814 psi | 65% | 2825 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 82% | 39,073 psi | 63% | 2815 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 90% | 37,884 psi | 61% | 2782 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 86% | 29,965 psi | 48% | 2612 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,278 psi | 66% | 2828 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,021 psi | 75% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,901 psi | 66% | 2822 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,767 psi | 59% | 2762 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,433 psi | 57% | 2720 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,748 psi | 49% | 2631 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,233 psi | 63% | 2874 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,763 psi | 80% | 2976 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 34,200 psi | 55% | 2694 fps | 95% |
| Bofors RP30 | <<locked>> | 88% | 37,101 psi | 59% | 2799 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 36,767 psi | 59% | 2762 fps | 96.2% |
| Bofors RP7 | <<locked>> | 80% | 51,242 psi | 82% | 2956 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 36,100 psi | 58% | 2740 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 50,531 psi | 81% | 3009 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 82% | 41,785 psi | 67% | 2825 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,959 psi | 66% | 2805 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,251 psi | 71% | 2831 fps | 100% |
| Hodgdon Retumbo | 57.9 gr | 84% | 34,374 psi | 55% | 2785 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 50,720 psi | 81% | 3041 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 45% | 1742 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,601 psi | 75% | 2884 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,663 psi | 84% | 2982 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 46,702 psi | 75% | 2897 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,524 psi | 65% | 2759 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 82% | 37,623 psi | 60% | 2792 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,565 psi | 60% | 2828 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 50,111 psi | 80% | 2923 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,515 psi | 78% | 2920 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 31,749 psi | 51% | 2562 fps | 97% |
| Norma 204 | <<locked>> | 80% | 46,934 psi | 75% | 2930 fps | 98.6% |
| Norma 217 | <<locked>> | 90% | 30,850 psi | 49% | 2667 fps | 95% |
| Norma MRP | <<locked>> | 80% | 38,653 psi | 62% | 2835 fps | 98.2% |
| Norma URP | <<locked>> | 80% | 47,906 psi | 77% | 2936 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,231 psi | 60% | 2795 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 46,833 psi | 75% | 2940 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 33,359 psi | 53% | 2671 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 46% | 1781 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,081 psi | 79% | 2976 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,355 psi | 76% | 2999 fps | 100% |
| ReloadSwiss RS 76 | 60.5 gr | 82% | 31,256 psi | 50% | 2684 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,596 psi | 65% | 2913 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 42,018 psi | 67% | 2802 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 80% | 40,306 psi | 65% | 2808 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 51,242 psi | 82% | 2956 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,111 psi | 80% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,515 psi | 78% | 2920 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,052 psi | 79% | 2871 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,972 psi | 64% | 2802 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 42,917 psi | 69% | 2792 fps | 96.1% |
| Somchem S365 | <<locked>> | 80% | 45,179 psi | 72% | 2890 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,828 psi | 65% | 2789 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 80% | 49,371 psi | 79% | 2930 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,433 psi | 57% | 2654 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 48,733 psi | 78% | 2933 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,682 psi | 64% | 2802 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 41,495 psi | 67% | 2887 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 86% | 39,102 psi | 63% | 2818 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 94% | 45,136 psi | 72% | 2999 fps | 96% |
| Vihtavuori N570 | <<locked>> | 98% | 49,240 psi | 79% | 3120 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,617 psi | 78% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,763 psi | 81% | 3012 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,879 psi | 51% | 2753 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,449 psi | 60% | 2710 fps | 96.4% |
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 70 powders for .264 Win. Mag. loaded with the .264 | 128gr | MRR Green Long Range. Hodgdon Retumbo delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,255 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 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 128.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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, Accurate MAGPRO rank at the top here: for .264 Win. Mag. with the .264 | 128gr | MRR Green Long Range 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.