Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 123gr | Warner Tool Co. Flat Line bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Hodgdon Retumbo 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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 56,405 psi | 90% | 3107 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 53,969 psi | 87% | 3087 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 55,100 psi | 88% | 3212 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 90% | 54,708 psi | 88% | 3146 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 56,159 psi | 90% | 3209 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,633 psi | 81% | 3104 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,252 psi | 73% | 3061 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,781 psi | 88% | 3146 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,753 psi | 89% | 3156 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 54,201 psi | 87% | 3133 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,260 psi | 90% | 3205 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,056 psi | 87% | 3120 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 53,359 psi | 86% | 3182 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 54,201 psi | 87% | 3209 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,375 psi | 87% | 3104 fps | 96.2% |
| Bofors RP15 | <<locked>> | 96% | 55,405 psi | 89% | 3192 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,011 psi | 85% | 3179 fps | 99% |
| Bofors RP5 | <<locked>> | 94% | 56,260 psi | 90% | 3205 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 56,014 psi | 90% | 3084 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,927 psi | 90% | 3199 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 55,622 psi | 89% | 3143 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 54,389 psi | 87% | 3094 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 56,188 psi | 90% | 3146 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,100 psi | 88% | 3130 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,013 psi | 88% | 3061 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,956 psi | 90% | 3320 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 56,173 psi | 90% | 3182 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 59% | 1975 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,288 psi | 87% | 3071 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,157 psi | 87% | 3054 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 54,433 psi | 87% | 3081 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 53,563 psi | 86% | 3068 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 94% | 54,085 psi | 87% | 3186 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,611 psi | 65% | 2949 fps | 96.1% |
| Lovex S065 | <<locked>> | 84% | 54,665 psi | 88% | 3051 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,127 psi | 85% | 3051 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 54,172 psi | 87% | 3074 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,129 psi | 88% | 3130 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 40,872 psi | 66% | 2982 fps | 98.4% |
| Norma MRP | <<locked>> | 92% | 56,289 psi | 90% | 3232 fps | 100% |
| Norma URP | <<locked>> | 86% | 55,941 psi | 90% | 3127 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,984 psi | 88% | 3212 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 54,752 psi | 88% | 3130 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,243 psi | 85% | 3136 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 61% | 2024 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 53,925 psi | 86% | 3110 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,028 psi | 90% | 3199 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 52,866 psi | 85% | 3248 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 3196 fps | 97.8% |
| Rottweil R 904 | <<locked>> | 90% | 55,912 psi | 90% | 3114 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 53,896 psi | 86% | 3123 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 56,014 psi | 90% | 3084 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,665 psi | 88% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,127 psi | 85% | 3051 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,896 psi | 86% | 3002 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 53,476 psi | 86% | 3117 fps | 99.4% |
| Somchem S361 | <<locked>> | 88% | 53,896 psi | 86% | 3045 fps | 98.1% |
| Somchem S365 | <<locked>> | 86% | 52,837 psi | 85% | 3071 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,346 psi | 87% | 3094 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 54,708 psi | 88% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,128 psi | 87% | 3061 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 53,809 psi | 86% | 3071 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 84% | 53,330 psi | 86% | 3064 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,217 psi | 90% | 3150 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 56,057 psi | 90% | 3225 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 56,159 psi | 90% | 3205 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,750 psi | 85% | 3196 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 53,534 psi | 86% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,622 psi | 89% | 3143 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,680 psi | 89% | 3261 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,157 psi | 87% | 3087 fps | 99.4% |
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% | 35,201 psi | 56% | 2700 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 47,079 psi | 75% | 2972 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 44,541 psi | 71% | 3005 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 39,160 psi | 63% | 2835 fps | 96.3% |
| ADI AR 2213 | <<locked>> | 84% | 40,030 psi | 64% | 2884 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 92% | 38,624 psi | 62% | 2841 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 32,605 psi | 52% | 2736 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,005 psi | 72% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,982 psi | 83% | 3097 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,218 psi | 63% | 2828 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,070 psi | 56% | 2762 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,736 psi | 54% | 2726 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,370 psi | 47% | 2628 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,985 psi | 59% | 2874 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,155 psi | 82% | 3045 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 37,347 psi | 60% | 2822 fps | 95.7% |
| Bofors RP30 | <<locked>> | 90% | 37,536 psi | 60% | 2858 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 35,070 psi | 56% | 2762 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 49,545 psi | 79% | 2972 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 88% | 36,970 psi | 59% | 2802 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 48,631 psi | 78% | 3022 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 51,140 psi | 82% | 3038 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 42,801 psi | 69% | 2894 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,945 psi | 67% | 2874 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,409 psi | 68% | 2851 fps | 100% |
| Hodgdon Retumbo | 58.5 gr | 86% | 34,838 psi | 56% | 2838 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 48,443 psi | 78% | 3051 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,905 psi | 45% | 1772 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,962 psi | 72% | 2900 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,720 psi | 81% | 2999 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 44,614 psi | 72% | 2910 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,539 psi | 67% | 2828 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 86% | 41,249 psi | 66% | 2923 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,043 psi | 61% | 2887 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 48,385 psi | 78% | 2943 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,789 psi | 75% | 2936 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 30,197 psi | 48% | 2562 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 44,947 psi | 72% | 2936 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 33,373 psi | 54% | 2785 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 36,637 psi | 59% | 2835 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 46,021 psi | 74% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,247 psi | 61% | 2864 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 44,802 psi | 72% | 2949 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 34,011 psi | 55% | 2730 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 46% | 1811 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,036 psi | 75% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,136 psi | 72% | 3009 fps | 100% |
| ReloadSwiss RS 76 | 61.2 gr | 84% | 31,807 psi | 51% | 2743 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 44,440 psi | 71% | 3045 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 40,451 psi | 65% | 2812 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 38,595 psi | 62% | 2815 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 49,545 psi | 79% | 2972 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,385 psi | 78% | 2943 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,789 psi | 75% | 2936 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,384 psi | 76% | 2890 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,276 psi | 61% | 2808 fps | 96.3% |
| Somchem S361 | <<locked>> | 82% | 43,976 psi | 71% | 2858 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 43,105 psi | 69% | 2907 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,146 psi | 63% | 2795 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 51,416 psi | 82% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,485 psi | 76% | 2949 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,924 psi | 54% | 2657 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 46,717 psi | 75% | 2949 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,811 psi | 61% | 2808 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 42,482 psi | 68% | 2959 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 88% | 39,798 psi | 64% | 2881 fps | 95% |
| Vihtavuori N568 | <<locked>> | 96% | 45,774 psi | 73% | 3061 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,615 psi | 75% | 2904 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,631 psi | 78% | 3022 fps | 99.5% |
| Winchester StaBALL HD | 55.9 gr | 80% | 29,965 psi | 48% | 2743 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,679 psi | 57% | 2710 fps | 95.2% |
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 71 powders for .264 Win. Mag. loaded with the .264 | 123gr | Warner Tool Co. Flat Line. Hodgdon Retumbo delivers the highest muzzle velocity at 3,320 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,320 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:7.5 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. Winchester StaBALL HD, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .264 Win. Mag. with the .264 | 123gr | Warner Tool Co. Flat Line 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.