Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 220gr | Peregrine VRG-3 bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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% | 54,360 psi | 89% | 2825 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 52,185 psi | 86% | 2808 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,113 psi | 87% | 2910 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 54,331 psi | 89% | 2782 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,534 psi | 88% | 2864 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 54,810 psi | 90% | 2920 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,614 psi | 75% | 2746 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,408 psi | 66% | 2700 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,592 psi | 88% | 2871 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,578 psi | 90% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,939 psi | 87% | 2851 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,447 psi | 89% | 2913 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 51,909 psi | 85% | 2838 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,256 psi | 84% | 2890 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,764 psi | 85% | 2917 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,432 psi | 88% | 2897 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,079 psi | 77% | 2815 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 54,447 psi | 89% | 2913 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 51,924 psi | 85% | 2759 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,386 psi | 83% | 2841 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 54,360 psi | 89% | 2864 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 53,737 psi | 88% | 2825 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 54,969 psi | 90% | 2861 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,824 psi | 88% | 2844 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,780 psi | 88% | 2795 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,096 psi | 82% | 2943 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 54,810 psi | 90% | 2900 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 60% | 1785 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,403 psi | 88% | 2799 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,505 psi | 88% | 2789 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 52,852 psi | 87% | 2805 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,692 psi | 87% | 2792 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 96% | 52,504 psi | 86% | 2894 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 53,809 psi | 88% | 2785 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 51,895 psi | 85% | 2776 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,692 psi | 85% | 2785 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,302 psi | 89% | 2851 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 54,186 psi | 89% | 2936 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,752 psi | 90% | 2851 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,924 psi | 87% | 2910 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 53,664 psi | 88% | 2854 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 51,097 psi | 84% | 2844 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,492 psi | 62% | 1827 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,085 psi | 89% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,359 psi | 86% | 2831 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,563 psi | 90% | 2917 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,502 psi | 83% | 2940 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 52,794 psi | 87% | 2766 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,868 psi | 90% | 2835 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 52,359 psi | 86% | 2838 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 84% | 51,924 psi | 85% | 2759 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,809 psi | 88% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 51,895 psi | 85% | 2776 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,578 psi | 90% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,388 psi | 88% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,127 psi | 87% | 2736 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 51,924 psi | 85% | 2835 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 52,808 psi | 87% | 2762 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,837 psi | 87% | 2769 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 54,665 psi | 90% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,794 psi | 87% | 2812 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 53,911 psi | 89% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,924 psi | 87% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,330 psi | 86% | 2792 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 52,257 psi | 86% | 2795 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,041 psi | 89% | 2864 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,201 psi | 89% | 2930 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,606 psi | 88% | 2900 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,576 psi | 86% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,534 psi | 90% | 2867 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,359 psi | 86% | 2963 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,852 psi | 87% | 2808 fps | 98.8% |
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% | 31,067 psi | 51% | 2375 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 42,293 psi | 69% | 2638 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 45,963 psi | 75% | 2782 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 50,995 psi | 84% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,072 psi | 63% | 2569 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 44,657 psi | 73% | 2736 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 98% | 42,656 psi | 70% | 2684 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 33,185 psi | 54% | 2516 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,886 psi | 67% | 2651 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,152 psi | 77% | 2772 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,072 psi | 63% | 2566 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,537 psi | 63% | 2615 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,124 psi | 49% | 2411 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,023 psi | 49% | 2425 fps | 95.5% |
| Alliant Reloder-26 | 83.1 gr | 80% | 32,547 psi | 53% | 2530 fps | 97.5% |
| Bofors RP15 | <<locked>> | 88% | 38,305 psi | 63% | 2608 fps | 95.3% |
| Bofors RP30 | <<locked>> | 96% | 40,886 psi | 67% | 2694 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 38,537 psi | 63% | 2615 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 45,658 psi | 75% | 2651 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,959 psi | 67% | 2654 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 44,411 psi | 73% | 2694 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 47,123 psi | 77% | 2710 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,657 psi | 73% | 2684 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,920 psi | 77% | 2726 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,421 psi | 63% | 2539 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,189 psi | 63% | 2684 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,729 psi | 72% | 2710 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 45% | 1598 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,278 psi | 68% | 2582 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,181 psi | 77% | 2680 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,422 psi | 66% | 2589 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,453 psi | 71% | 2625 fps | 95% |
| IMR 7828 SSC | 87.4 gr | 90% | 42,728 psi | 70% | 2710 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 44,628 psi | 73% | 2628 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 42,830 psi | 70% | 2615 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 30,501 psi | 50% | 2359 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 41,118 psi | 68% | 2612 fps | 96% |
| Norma MRP | <<locked>> | 82% | 35,070 psi | 58% | 2562 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 41,901 psi | 69% | 2631 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,409 psi | 70% | 2713 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,828 psi | 67% | 2625 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 35,041 psi | 58% | 2526 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,050 psi | 46% | 1634 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,111 psi | 82% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,293 psi | 69% | 2657 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,857 psi | 67% | 2674 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,954 psi | 57% | 2595 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,414 psi | 81% | 2713 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,337 psi | 70% | 2612 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 37,246 psi | 61% | 2546 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,658 psi | 75% | 2651 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,628 psi | 73% | 2628 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 42,830 psi | 70% | 2615 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,024 psi | 84% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,024 psi | 82% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,598 psi | 72% | 2575 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,494 psi | 65% | 2602 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 49,545 psi | 81% | 2710 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,180 psi | 76% | 2657 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,609 psi | 63% | 2589 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,259 psi | 58% | 2474 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 47,340 psi | 78% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,294 psi | 71% | 2631 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,304 psi | 61% | 2513 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 42,656 psi | 70% | 2628 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 33,591 psi | 55% | 2484 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 88% | 43,918 psi | 72% | 2743 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 43,410 psi | 71% | 2717 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,409 psi | 70% | 2595 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,411 psi | 73% | 2694 fps | 98.5% |
| Winchester StaBALL HD | 79.9 gr | 80% | 26,571 psi | 44% | 2398 fps | 98.2% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,697 psi | 65% | 2572 fps | 95.8% |
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 78 powders for .338 Lapua Mag. loaded with the .338 | 220gr | Peregrine VRG-3. Winchester StaBALL HD delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,785 fps to 2,963 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.338" calls for a 1:14.5 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, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for .338 Lapua Mag. with the .338 | 220gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Vihtavuori N170, Vihtavuori N568 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.