Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 128gr | TWENTY-NINE ERTP bullet and 73 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 Vihtavuori N560.
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>> | 92% | 54,433 psi | 87% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,463 psi | 89% | 3054 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 55,956 psi | 90% | 3186 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 90% | 53,069 psi | 85% | 3120 fps | 98% |
| ADI AR 2209 | <<locked>> | 88% | 52,721 psi | 85% | 3058 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 92% | 54,157 psi | 87% | 3123 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,185 psi | 84% | 3084 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,760 psi | 75% | 3045 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,924 psi | 85% | 3054 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,924 psi | 85% | 3054 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,765 psi | 85% | 3058 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,927 psi | 90% | 3110 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,404 psi | 87% | 3123 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,782 psi | 89% | 3091 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,172 psi | 88% | 3153 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 52,257 psi | 84% | 3120 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,608 psi | 89% | 3081 fps | 96.9% |
| Bofors RP15 | <<locked>> | 94% | 53,621 psi | 86% | 3107 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 3159 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 54,404 psi | 87% | 3123 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 53,867 psi | 86% | 2995 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 53,635 psi | 86% | 3110 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 53,374 psi | 86% | 3051 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,927 psi | 90% | 3068 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 53,882 psi | 86% | 3058 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,823 psi | 85% | 3038 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,243 psi | 85% | 2979 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,230 psi | 87% | 3238 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,751 psi | 86% | 3091 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,246 psi | 60% | 1942 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,811 psi | 89% | 3041 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,288 psi | 89% | 3022 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,869 psi | 90% | 3048 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,085 psi | 88% | 3041 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 56,057 psi | 90% | 3169 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,322 psi | 68% | 2940 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 56,130 psi | 90% | 3022 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,404 psi | 87% | 3018 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,811 psi | 89% | 3045 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,156 psi | 85% | 3041 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 42,511 psi | 68% | 2969 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 54,186 psi | 87% | 3140 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,896 psi | 86% | 3038 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,837 psi | 85% | 3120 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 52,895 psi | 85% | 3045 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,201 psi | 89% | 3114 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,014 psi | 61% | 1985 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,506 psi | 89% | 3077 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,809 psi | 86% | 3107 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,795 psi | 88% | 3228 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,041 psi | 87% | 3182 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 88% | 53,867 psi | 86% | 3028 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 55,390 psi | 89% | 3097 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 53,867 psi | 86% | 2995 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,130 psi | 90% | 3022 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,404 psi | 87% | 3018 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,405 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,969 psi | 88% | 3091 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 55,230 psi | 89% | 3018 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 54,679 psi | 88% | 3041 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,825 psi | 90% | 3064 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,260 psi | 90% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,535 psi | 89% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,608 psi | 89% | 3045 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,911 psi | 88% | 3035 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,389 psi | 87% | 3064 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,954 psi | 87% | 3136 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 54,157 psi | 87% | 3120 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 3186 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,172 psi | 88% | 2982 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,650 psi | 86% | 3058 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,085 psi | 87% | 3176 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,956 psi | 90% | 3064 fps | 99.7% |
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% | 36,303 psi | 58% | 2677 fps | 98.4% |
| Accurate 4350 | <<locked>> | 80% | 48,428 psi | 78% | 2940 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 39,479 psi | 63% | 2854 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 84% | 42,917 psi | 69% | 2920 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,248 psi | 65% | 2812 fps | 97.1% |
| ADI AR 2213 | <<locked>> | 82% | 38,580 psi | 62% | 2802 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 90% | 37,260 psi | 60% | 2762 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,633 psi | 51% | 2664 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,698 psi | 65% | 2812 fps | 97.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,698 psi | 65% | 2812 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,311 psi | 74% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,321 psi | 65% | 2805 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,201 psi | 58% | 2746 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,838 psi | 56% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,269 psi | 49% | 2612 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,595 psi | 62% | 2861 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,240 psi | 79% | 2959 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,143 psi | 58% | 2743 fps | 95.8% |
| Bofors RP30 | <<locked>> | 88% | 36,405 psi | 58% | 2782 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,201 psi | 58% | 2746 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 50,647 psi | 81% | 2943 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 86% | 35,708 psi | 57% | 2726 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 49,922 psi | 80% | 2992 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,359 psi | 84% | 3009 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 41,046 psi | 66% | 2805 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,451 psi | 65% | 2792 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,816 psi | 70% | 2822 fps | 100% |
| Hodgdon Retumbo | 57.1 gr | 84% | 33,721 psi | 54% | 2759 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 49,893 psi | 80% | 3025 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,833 psi | 45% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,021 psi | 74% | 2871 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,054 psi | 83% | 2966 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 46,050 psi | 74% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,001 psi | 64% | 2746 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 84% | 39,813 psi | 64% | 2844 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,927 psi | 59% | 2812 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,487 psi | 79% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,892 psi | 77% | 2904 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,328 psi | 50% | 2552 fps | 96.8% |
| Norma 204 | <<locked>> | 80% | 46,340 psi | 74% | 2917 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 32,445 psi | 52% | 2717 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 38,072 psi | 61% | 2822 fps | 98% |
| Norma URP | <<locked>> | 80% | 47,253 psi | 76% | 2923 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,709 psi | 59% | 2782 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 46,253 psi | 74% | 2927 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 32,721 psi | 52% | 2654 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 46% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,428 psi | 78% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,746 psi | 75% | 2986 fps | 100% |
| ReloadSwiss RS 76 | 59.7 gr | 82% | 30,719 psi | 49% | 2664 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 42,931 psi | 69% | 2966 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 41,684 psi | 67% | 2792 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 39,697 psi | 64% | 2792 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 50,647 psi | 81% | 2943 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,487 psi | 79% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,892 psi | 77% | 2904 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,457 psi | 78% | 2858 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,407 psi | 63% | 2785 fps | 97.1% |
| Somchem S361 | <<locked>> | 80% | 42,467 psi | 68% | 2779 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 44,469 psi | 71% | 2877 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,263 psi | 65% | 2776 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 52,591 psi | 84% | 2907 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,733 psi | 78% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,925 psi | 56% | 2638 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 48,138 psi | 77% | 2923 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,218 psi | 63% | 2789 fps | 99.9% |
| Vihtavuori N560 | 57.9 gr | 82% | 40,901 psi | 66% | 2874 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 38,595 psi | 62% | 2805 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 44,237 psi | 71% | 2979 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,863 psi | 77% | 2871 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,140 psi | 80% | 2999 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,212 psi | 50% | 2736 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,927 psi | 59% | 2697 fps | 96.1% |
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 73 powders for .264 Win. Mag. loaded with the .264 | 128gr | TWENTY-NINE ERTP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,238 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 0.265" calls for a 1:8.0 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, Vihtavuori N560 rank at the top here: for .264 Win. Mag. with the .264 | 128gr | TWENTY-NINE ERTP 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.