Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 220gr | Reichenberg HDB Universal bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Ramshot Grand.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 53,476 psi | 88% | 2808 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 55,013 psi | 90% | 2848 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 52,112 psi | 86% | 2894 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 82% | 53,548 psi | 88% | 2766 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,663 psi | 86% | 2848 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 53,983 psi | 89% | 2900 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,846 psi | 74% | 2726 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,682 psi | 65% | 2680 fps | 97.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 52,736 psi | 87% | 2841 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,476 psi | 89% | 2789 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,504 psi | 86% | 2854 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,548 psi | 88% | 2867 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,083 psi | 86% | 2831 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,606 psi | 88% | 2897 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,360 psi | 89% | 2874 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,299 psi | 83% | 2874 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,766 psi | 90% | 2959 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,402 psi | 86% | 2877 fps | 98.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,108 psi | 76% | 2795 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 53,606 psi | 88% | 2897 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 54,621 psi | 90% | 2799 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,545 psi | 81% | 2818 fps | 98% |
| Hodgdon H414 | <<locked>> | 86% | 53,592 psi | 88% | 2848 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 52,982 psi | 87% | 2808 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 94% | 53,969 psi | 89% | 2841 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,808 psi | 87% | 2825 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,808 psi | 87% | 2779 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,182 psi | 81% | 2923 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 53,737 psi | 88% | 2881 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 60% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,721 psi | 87% | 2785 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,939 psi | 87% | 2776 fps | 99.5% |
| IMR 4831 | <<locked>> | 88% | 52,069 psi | 85% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 51,967 psi | 85% | 2776 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 96% | 51,677 psi | 85% | 2874 fps | 97.7% |
| Lovex S065 | <<locked>> | 86% | 53,055 psi | 87% | 2769 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,563 psi | 90% | 2815 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,850 psi | 83% | 2769 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 53,417 psi | 88% | 2835 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 53,084 psi | 87% | 2917 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 53,795 psi | 88% | 2835 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,909 psi | 85% | 2890 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 88% | 52,765 psi | 87% | 2838 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,969 psi | 89% | 2887 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,391 psi | 61% | 1821 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,953 psi | 87% | 2854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 51,387 psi | 84% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,592 psi | 88% | 2897 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,516 psi | 81% | 2920 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 82% | 52,098 psi | 86% | 2753 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,056 psi | 89% | 2818 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 55,071 psi | 90% | 2877 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 54,621 psi | 90% | 2799 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,055 psi | 87% | 2769 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,563 psi | 90% | 2815 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,766 psi | 88% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,736 psi | 87% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,460 psi | 86% | 2723 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,607 psi | 90% | 2874 fps | 99.1% |
| Somchem S355 | <<locked>> | 82% | 51,982 psi | 85% | 2746 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,953 psi | 85% | 2753 fps | 96.9% |
| Somchem S365 | <<locked>> | 90% | 53,809 psi | 88% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 51,938 psi | 85% | 2795 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 84% | 53,301 psi | 88% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,156 psi | 86% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 51,532 psi | 85% | 2776 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 54,955 psi | 90% | 2831 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,069 psi | 87% | 2848 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,171 psi | 87% | 2910 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,634 psi | 86% | 2881 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 51,750 psi | 85% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,766 psi | 88% | 2851 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 51,053 psi | 84% | 2943 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,895 psi | 85% | 2789 fps | 98.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 30,530 psi | 50% | 2359 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 41,597 psi | 68% | 2625 fps | 99.6% |
| Accurate MAGPRO | 93.2 gr | 92% | 48,515 psi | 80% | 2828 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 50,357 psi | 83% | 2717 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,161 psi | 66% | 2612 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 90% | 43,903 psi | 72% | 2717 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 41,843 psi | 69% | 2664 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 34,795 psi | 57% | 2556 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,422 psi | 66% | 2612 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,227 psi | 84% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,234 psi | 66% | 2635 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,311 psi | 76% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,987 psi | 66% | 2605 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,855 psi | 62% | 2598 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,602 psi | 49% | 2395 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,486 psi | 48% | 2405 fps | 95% |
| Alliant Reloder-26 | 81.9 gr | 80% | 31,923 psi | 52% | 2510 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 40,147 psi | 66% | 2648 fps | 95.8% |
| Bofors RP30 | <<locked>> | 96% | 40,118 psi | 66% | 2677 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 37,855 psi | 62% | 2598 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,063 psi | 74% | 2635 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 40,161 psi | 66% | 2631 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 43,627 psi | 72% | 2674 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 46,369 psi | 76% | 2694 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 90% | 46,934 psi | 77% | 2723 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,108 psi | 76% | 2707 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,768 psi | 62% | 2523 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,507 psi | 62% | 2664 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 42,888 psi | 70% | 2690 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 45% | 1591 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,698 psi | 67% | 2566 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,601 psi | 77% | 2664 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 39,813 psi | 65% | 2575 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,687 psi | 75% | 2664 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 44,889 psi | 74% | 2749 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 44,048 psi | 72% | 2615 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 42,250 psi | 69% | 2598 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 32,024 psi | 53% | 2398 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 40,451 psi | 66% | 2595 fps | 95.7% |
| Norma MRP | <<locked>> | 82% | 34,432 psi | 57% | 2543 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 41,263 psi | 68% | 2618 fps | 99.5% |
| Ramshot Grand | 88.7 gr | 90% | 41,669 psi | 68% | 2694 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 40,103 psi | 66% | 2608 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 37,028 psi | 61% | 2572 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 46% | 1631 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,197 psi | 81% | 2802 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,698 psi | 68% | 2644 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,176 psi | 66% | 2657 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,374 psi | 56% | 2575 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,733 psi | 80% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,640 psi | 68% | 2592 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 39,160 psi | 64% | 2589 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 45,063 psi | 74% | 2635 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,048 psi | 72% | 2615 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 42,250 psi | 69% | 2598 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,212 psi | 82% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,516 psi | 81% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,047 psi | 71% | 2562 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,812 psi | 64% | 2582 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,878 psi | 80% | 2700 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,469 psi | 75% | 2638 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,913 psi | 62% | 2572 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,606 psi | 57% | 2457 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,731 psi | 77% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,641 psi | 70% | 2615 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,666 psi | 60% | 2497 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 42,076 psi | 69% | 2615 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 32,967 psi | 54% | 2467 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 46,267 psi | 76% | 2785 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 42,612 psi | 70% | 2700 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,756 psi | 69% | 2582 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,787 psi | 72% | 2677 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,049 psi | 43% | 2379 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,059 psi | 64% | 2556 fps | 95.5% |
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 74 powders for .338 Lapua Mag. loaded with the .338 | 220gr | Reichenberg HDB Universal. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,778 fps to 2,959 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.338" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Alliant Reloder-26, Accurate MAGPRO, Ramshot Grand rank at the top here: for .338 Lapua Mag. with the .338 | 220gr | Reichenberg HDB Universal 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.