Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 155gr | Lapua Mega bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Alliant Reloder-33 and Hodgdon Retumbo.
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>> | 86% | 53,925 psi | 86% | 2769 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 52,736 psi | 85% | 2874 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 84% | 55,100 psi | 88% | 2851 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 53,345 psi | 86% | 2867 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 96% | 55,738 psi | 89% | 2904 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 55,985 psi | 90% | 3031 fps | 99.2% |
| ADI AR 2225 | <<locked>> | 98% | 54,549 psi | 87% | 2927 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,274 psi | 89% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 54,708 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 53,896 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 55,970 psi | 90% | 2825 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 55,956 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 52,446 psi | 84% | 2854 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 53,548 psi | 86% | 2943 fps | 98.6% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2930 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 53,925 psi | 86% | 2831 fps | 98.7% |
| Bofors RP15 | <<locked>> | 88% | 53,403 psi | 86% | 2854 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 55,869 psi | 90% | 2923 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 53,896 psi | 86% | 2864 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 53,476 psi | 86% | 2867 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 56,188 psi | 90% | 2858 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,114 psi | 88% | 2841 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,419 psi | 89% | 2753 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 55,114 psi | 88% | 2989 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,811 psi | 61% | 1791 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 53,243 psi | 85% | 2782 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 88% | 55,796 psi | 89% | 2913 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 92% | 55,143 psi | 88% | 2785 fps | 95.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 53,563 psi | 86% | 2907 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 55,753 psi | 89% | 2795 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 54,853 psi | 88% | 2930 fps | 100% |
| Norma MRP | <<locked>> | 84% | 53,896 psi | 86% | 2877 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 52,968 psi | 85% | 2874 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 55,317 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,899 psi | 62% | 1837 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 55,912 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 54,940 psi | 88% | 2946 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 84% | 55,680 psi | 89% | 2822 fps | 100% |
| Rottweil R 905 | <<locked>> | 84% | 54,636 psi | 88% | 2835 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 46,499 psi | 75% | 2743 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 54,259 psi | 87% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 53,200 psi | 85% | 2759 fps | 99.6% |
| Somchem S385 | <<locked>> | 84% | 54,694 psi | 88% | 2802 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 54,723 psi | 88% | 2792 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 53,722 psi | 86% | 2818 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 84% | 54,331 psi | 87% | 2802 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 53,359 psi | 86% | 2881 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 90% | 54,404 psi | 87% | 2881 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 94% | 55,709 psi | 89% | 2953 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 94% | 52,953 psi | 85% | 2949 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 55,912 psi | 90% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 54,549 psi | 87% | 2802 fps | 100% |
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% | 44,179 psi | 71% | 2612 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 45,788 psi | 73% | 2749 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 80% | 48,225 psi | 77% | 2740 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 43,410 psi | 70% | 2690 fps | 98.9% |
| ADI AR 2217 | <<locked>> | 80% | 32,430 psi | 52% | 2441 fps | 96% |
| ADI AR 2218 | <<locked>> | 92% | 41,989 psi | 67% | 2753 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 29,762 psi | 48% | 2415 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 48,515 psi | 78% | 2740 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,109 psi | 77% | 2733 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 44,179 psi | 71% | 2694 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,047 psi | 69% | 2625 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 37,260 psi | 60% | 2579 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 48,747 psi | 78% | 2795 fps | 100% |
| Alliant Reloder-33 | 66.6 gr | 88% | 39,871 psi | 64% | 2680 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 94% | 42,554 psi | 68% | 2733 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 41,800 psi | 67% | 2605 fps | 95.9% |
| Bofors RP15 | <<locked>> | 80% | 41,205 psi | 66% | 2635 fps | 99.2% |
| Bofors RP30 | <<locked>> | 80% | 34,780 psi | 56% | 2516 fps | 97.1% |
| Bofors RP5 | <<locked>> | 80% | 44,179 psi | 71% | 2694 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 35,302 psi | 57% | 2516 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 80% | 46,050 psi | 74% | 2687 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,179 psi | 72% | 2671 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,112 psi | 84% | 2707 fps | 100% |
| Hodgdon Retumbo | 56.1 gr | 80% | 36,405 psi | 58% | 2628 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,413 psi | 46% | 1601 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,891 psi | 75% | 2674 fps | 99% |
| IMR 7828 SSC | <<locked>> | 80% | 42,366 psi | 68% | 2677 fps | 98.7% |
| IMR 7977 Enduron | <<locked>> | 90% | 51,706 psi | 83% | 2726 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 84% | 31,241 psi | 50% | 2451 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 38,232 psi | 61% | 2500 fps | 99.9% |
| Norma 217 | <<locked>> | 80% | 27,543 psi | 44% | 2362 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 46,891 psi | 75% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 42,264 psi | 68% | 2687 fps | 99% |
| Ramshot Magnum | <<locked>> | 80% | 38,130 psi | 61% | 2569 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,254 psi | 47% | 1644 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 35,665 psi | 57% | 2605 fps | 99.6% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 35,143 psi | 56% | 2562 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 48,921 psi | 78% | 2713 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 80% | 47,805 psi | 77% | 2723 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 43,482 psi | 70% | 2684 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,485 psi | 76% | 2720 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 49,763 psi | 80% | 2703 fps | 99.3% |
| Somchem S385 | <<locked>> | 80% | 48,138 psi | 77% | 2697 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 42,119 psi | 68% | 2582 fps | 99.6% |
| Vihtavuori N170 | <<locked>> | 88% | 47,021 psi | 75% | 2703 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 80% | 47,630 psi | 76% | 2700 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 46,528 psi | 75% | 2759 fps | 99% |
| Vihtavuori N565 | <<locked>> | 80% | 38,769 psi | 62% | 2589 fps | 97.6% |
| Vihtavuori N568 | <<locked>> | 82% | 36,390 psi | 58% | 2579 fps | 95.5% |
| Vihtavuori N570 | 64.1 gr | 88% | 42,917 psi | 69% | 2756 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,350 psi | 66% | 2694 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,411 psi | 71% | 2635 fps | 99.6% |
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 52 powders for .264 Win. Mag. loaded with the .264 | 155gr | Lapua Mega. ADI AR 2218 delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,031 fps. ADI AR 2218 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, Alliant Reloder-50, Hodgdon TrailBoss 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. Vihtavuori N570, Alliant Reloder-33, Hodgdon Retumbo rank at the top here: for .264 Win. Mag. with the .264 | 155gr | Lapua Mega 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.