Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 200gr | Barnes Solid bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Alliant Reloder-16.
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 2700 | <<locked>> | 82% | 54,839 psi | 90% | 2874 fps | 98.7% |
| Accurate 3100 | <<locked>> | 98% | 53,534 psi | 88% | 2920 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 54,331 psi | 89% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 51,822 psi | 85% | 2913 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 54,288 psi | 89% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,634 psi | 86% | 2953 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 98% | 53,983 psi | 89% | 3002 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 52,837 psi | 87% | 2949 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 51,677 psi | 85% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,489 psi | 86% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,548 psi | 88% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,156 psi | 86% | 2940 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,229 psi | 87% | 3002 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,795 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,789 psi | 77% | 2917 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,114 psi | 89% | 3071 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,257 psi | 86% | 2982 fps | 97.8% |
| Bofors RP3 | <<locked>> | 82% | 52,402 psi | 86% | 2877 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 53,229 psi | 87% | 3002 fps | 98.1% |
| Bofors RP7 | <<locked>> | 86% | 51,996 psi | 85% | 2864 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 52,765 psi | 87% | 2894 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 53,737 psi | 88% | 2963 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 86% | 53,258 psi | 87% | 2920 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 54,128 psi | 89% | 2949 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,968 psi | 87% | 2930 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,910 psi | 87% | 2897 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,759 psi | 75% | 2949 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 88% | 54,012 psi | 89% | 2999 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 60% | 1854 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,577 psi | 88% | 2874 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,040 psi | 87% | 2897 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,490 psi | 88% | 2890 fps | 99% |
| IMR 4831 | <<locked>> | 90% | 52,286 psi | 86% | 2907 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,127 psi | 86% | 2881 fps | 96% |
| IMR 7828 SSC | <<locked>> | 98% | 51,547 psi | 85% | 2976 fps | 96.4% |
| Lovex S062 | <<locked>> | 82% | 53,925 psi | 89% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,664 psi | 88% | 2887 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 55,056 psi | 90% | 2930 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,674 psi | 78% | 2822 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 54,563 psi | 90% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,650 psi | 88% | 2946 fps | 97.8% |
| Norma MRP | <<locked>> | 96% | 52,736 psi | 87% | 3025 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 53,954 psi | 89% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,866 psi | 85% | 2989 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 90% | 52,808 psi | 87% | 2949 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,951 psi | 82% | 2927 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,202 psi | 61% | 1896 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,576 psi | 86% | 2874 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,113 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,561 psi | 85% | 2933 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,679 psi | 88% | 3018 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,977 psi | 75% | 2946 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 84% | 52,605 psi | 86% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,346 psi | 89% | 2927 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 54,911 psi | 90% | 2986 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 86% | 51,996 psi | 85% | 2864 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,664 psi | 88% | 2887 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 53,925 psi | 89% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,056 psi | 90% | 2930 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,186 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,461 psi | 88% | 2766 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,185 psi | 87% | 2838 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,447 psi | 89% | 2979 fps | 98.3% |
| Somchem S355 | <<locked>> | 84% | 52,707 psi | 87% | 2874 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,504 psi | 86% | 2858 fps | 95.8% |
| Somchem S365 | <<locked>> | 92% | 53,635 psi | 88% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,127 psi | 86% | 2907 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 86% | 53,838 psi | 88% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,547 psi | 86% | 2894 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,056 psi | 90% | 2936 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 54,665 psi | 90% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 51,808 psi | 85% | 2897 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 52,765 psi | 87% | 2959 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,939 psi | 87% | 3012 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 51,996 psi | 85% | 2858 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,911 psi | 89% | 2966 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,632 psi | 81% | 3058 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,069 psi | 85% | 2897 fps | 97.7% |
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 2700 | <<locked>> | 80% | 51,271 psi | 84% | 2815 fps | 98.2% |
| Accurate 3100 | <<locked>> | 86% | 35,534 psi | 58% | 2575 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 51,097 psi | 84% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,204 psi | 64% | 2680 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 47,892 psi | 79% | 2785 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,192 psi | 71% | 2772 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 94% | 47,210 psi | 78% | 2877 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 43,482 psi | 71% | 2776 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,602 psi | 80% | 2812 fps | 100% |
| Alliant Reloder-16 | 73.5 gr | 80% | 37,898 psi | 62% | 2687 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,294 psi | 71% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,004 psi | 71% | 2769 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,497 psi | 71% | 2822 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,978 psi | 46% | 2438 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,852 psi | 56% | 2615 fps | 95.8% |
| Alliant Reloder-26 | 83.2 gr | 82% | 32,184 psi | 53% | 2612 fps | 95.9% |
| Bofors RP15 | <<locked>> | 94% | 42,888 psi | 70% | 2805 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 49,052 psi | 81% | 2825 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,497 psi | 71% | 2822 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 42,946 psi | 71% | 2694 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 49,269 psi | 81% | 2835 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 41,118 psi | 68% | 2726 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 43,888 psi | 72% | 2746 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 50,618 psi | 83% | 2887 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,516 psi | 81% | 2871 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,476 psi | 58% | 2575 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,118 psi | 66% | 2818 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 40,089 psi | 66% | 2733 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 45% | 1657 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,343 psi | 83% | 2822 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,595 psi | 63% | 2618 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,367 psi | 73% | 2723 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 37,565 psi | 62% | 2628 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,110 psi | 81% | 2825 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 96% | 48,167 psi | 79% | 2910 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 50,749 psi | 83% | 2818 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,959 psi | 69% | 2674 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 40,205 psi | 66% | 2654 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 34,389 psi | 56% | 2549 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 51,140 psi | 84% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,758 psi | 72% | 2762 fps | 95.4% |
| Norma MRP | 84.7 gr | 86% | 37,188 psi | 61% | 2710 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 38,899 psi | 64% | 2674 fps | 98.4% |
| Ramshot Grand | <<locked>> | 96% | 48,298 psi | 79% | 2923 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,782 psi | 62% | 2657 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 94% | 39,972 psi | 66% | 2730 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 46% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,197 psi | 81% | 2818 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,963 psi | 75% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,972 psi | 64% | 2694 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,681 psi | 62% | 2700 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,144 psi | 61% | 2733 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 46,209 psi | 76% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,718 psi | 78% | 2812 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 42,047 psi | 69% | 2749 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 42,946 psi | 71% | 2694 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,959 psi | 69% | 2674 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 50,749 psi | 83% | 2818 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,205 psi | 66% | 2654 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,427 psi | 78% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,152 psi | 77% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,104 psi | 67% | 2618 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,669 psi | 68% | 2743 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 46,427 psi | 76% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,139 psi | 81% | 2802 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 35,375 psi | 58% | 2628 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 39,958 psi | 66% | 2674 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 44,338 psi | 73% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,234 psi | 66% | 2671 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 90% | 39,378 psi | 65% | 2651 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 51,155 psi | 84% | 2795 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,668 psi | 65% | 2671 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 30,922 psi | 51% | 2513 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 94% | 49,530 psi | 81% | 2949 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,334 psi | 65% | 2638 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 41,278 psi | 68% | 2730 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,411 psi | 43% | 2467 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,177 psi | 69% | 2713 fps | 95.1% |
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 78 powders for .338 Lapua Mag. loaded with the .338 | 200gr | Barnes Solid. Alliant Reloder-26 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,071 fps. Alliant Reloder-23 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 60–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.338" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for .338 Lapua Mag. with the .338 | 200gr | Barnes Solid 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.