Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 200gr | CutEdge MTH bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, ReloadSwiss RS 70 and Alliant Reloder-26.
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% | 53,548 psi | 88% | 2858 fps | 98.5% |
| Accurate 3100 | <<locked>> | 98% | 51,967 psi | 85% | 2900 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 52,663 psi | 86% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,751 psi | 88% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,375 psi | 89% | 3041 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 53,098 psi | 87% | 2881 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 51,532 psi | 85% | 2940 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 98% | 52,866 psi | 87% | 2989 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,940 psi | 89% | 2904 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,070 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,984 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,330 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,534 psi | 90% | 2986 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 51,967 psi | 85% | 2986 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,489 psi | 86% | 2972 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,571 psi | 75% | 2897 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,605 psi | 86% | 3054 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,821 psi | 83% | 2963 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 54,563 psi | 90% | 2913 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 51,967 psi | 85% | 2986 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 54,114 psi | 89% | 2904 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 55,071 psi | 90% | 2936 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,562 psi | 86% | 2946 fps | 99% |
| Hodgdon H4350 | <<locked>> | 86% | 52,243 psi | 86% | 2907 fps | 98% |
| Hodgdon H4831 | <<locked>> | 96% | 53,011 psi | 87% | 2933 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,663 psi | 85% | 2884 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,556 psi | 73% | 2930 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 88% | 52,750 psi | 87% | 2982 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 60% | 1854 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,518 psi | 86% | 2861 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,955 psi | 90% | 2897 fps | 99.2% |
| IMR 4350 | <<locked>> | 90% | 52,011 psi | 85% | 2884 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,504 psi | 86% | 2877 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 54,520 psi | 90% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,563 psi | 90% | 2927 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,998 psi | 89% | 3022 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 52,736 psi | 87% | 2858 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,460 psi | 86% | 2874 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 53,795 psi | 88% | 2917 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,963 psi | 75% | 2799 fps | 98.7% |
| Norma 203B | <<locked>> | 82% | 53,388 psi | 88% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,533 psi | 86% | 2930 fps | 97.6% |
| Norma MRP | <<locked>> | 96% | 51,387 psi | 84% | 3005 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 52,765 psi | 87% | 2940 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,201 psi | 89% | 2933 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,375 psi | 89% | 3038 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 90% | 51,634 psi | 85% | 2936 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,617 psi | 80% | 2904 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,970 psi | 61% | 1896 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,100 psi | 90% | 2920 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 51,735 psi | 85% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,925 psi | 89% | 2976 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,518 psi | 86% | 3002 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,541 psi | 73% | 2920 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 82% | 54,476 psi | 89% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,795 psi | 90% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,301 psi | 88% | 2913 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 53,708 psi | 88% | 2969 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 54,114 psi | 89% | 2904 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,460 psi | 86% | 2874 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 52,736 psi | 87% | 2858 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,795 psi | 88% | 2917 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,055 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,475 psi | 86% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,967 psi | 85% | 2825 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,258 psi | 87% | 2963 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 54,737 psi | 90% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,984 psi | 90% | 2904 fps | 96.4% |
| Somchem S365 | <<locked>> | 92% | 52,098 psi | 86% | 2940 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,331 psi | 89% | 2943 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 55,013 psi | 90% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 52,678 psi | 86% | 2835 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,781 psi | 90% | 2933 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,838 psi | 88% | 2920 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 53,548 psi | 88% | 2838 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,983 psi | 89% | 2936 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,940 psi | 90% | 2999 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 51,721 psi | 85% | 2995 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,592 psi | 90% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,736 psi | 87% | 2953 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,993 psi | 79% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,607 psi | 90% | 2940 fps | 98.1% |
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% | 50,183 psi | 82% | 2802 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 34,055 psi | 56% | 2546 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,443 psi | 81% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,768 psi | 62% | 2654 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 50,517 psi | 83% | 2972 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 46,905 psi | 77% | 2776 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 42,177 psi | 69% | 2756 fps | 95% |
| ADI AR 2213 | <<locked>> | 96% | 49,385 psi | 81% | 2927 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,427 psi | 78% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,618 psi | 83% | 2867 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,869 psi | 61% | 2667 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,105 psi | 69% | 2799 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,756 psi | 69% | 2746 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,264 psi | 69% | 2799 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,876 psi | 44% | 2408 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,721 psi | 54% | 2592 fps | 95.2% |
| Alliant Reloder-26 | 83.2 gr | 82% | 30,922 psi | 51% | 2579 fps | 95.3% |
| Bofors RP15 | <<locked>> | 94% | 41,539 psi | 68% | 2782 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 47,645 psi | 78% | 2805 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,264 psi | 69% | 2799 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,829 psi | 69% | 2677 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,037 psi | 79% | 2818 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,001 psi | 66% | 2707 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 42,888 psi | 70% | 2730 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 94% | 49,284 psi | 81% | 2871 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,345 psi | 56% | 2559 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,669 psi | 68% | 2861 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 38,986 psi | 64% | 2713 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 44% | 1657 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,313 psi | 81% | 2808 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,532 psi | 85% | 2838 fps | 98.8% |
| IMR 4350 | <<locked>> | 82% | 40,161 psi | 66% | 2657 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,395 psi | 71% | 2710 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 36,347 psi | 60% | 2605 fps | 97.9% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,140 psi | 84% | 2867 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 96% | 47,021 psi | 77% | 2894 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 49,371 psi | 81% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,799 psi | 67% | 2657 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 38,986 psi | 64% | 2635 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 35,244 psi | 58% | 2575 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 49,995 psi | 82% | 2854 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,685 psi | 70% | 2746 fps | 95.1% |
| Norma MRP | 86.7 gr | 88% | 38,653 psi | 63% | 2749 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 37,710 psi | 62% | 2654 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,575 psi | 83% | 2877 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,934 psi | 77% | 2900 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 36,637 psi | 60% | 2635 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 41,742 psi | 69% | 2772 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 45% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,095 psi | 79% | 2802 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,817 psi | 74% | 2854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,724 psi | 62% | 2671 fps | 97.9% |
| ReloadSwiss RS 70 | 80.4 gr | 80% | 36,593 psi | 60% | 2677 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,566 psi | 63% | 2776 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 51,198 psi | 84% | 2815 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,875 psi | 74% | 2753 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,659 psi | 77% | 2795 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 40,843 psi | 67% | 2730 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 41,829 psi | 69% | 2677 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,799 psi | 67% | 2657 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 49,371 psi | 81% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,986 psi | 64% | 2635 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,296 psi | 76% | 2808 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,180 psi | 76% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,943 psi | 66% | 2598 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,395 psi | 71% | 2782 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 45,179 psi | 74% | 2753 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,372 psi | 84% | 2844 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 34,142 psi | 56% | 2605 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,711 psi | 64% | 2654 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 51,590 psi | 85% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,163 psi | 71% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,117 psi | 64% | 2654 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 40,915 psi | 67% | 2690 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,038 psi | 82% | 2785 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,508 psi | 63% | 2651 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,588 psi | 49% | 2480 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 94% | 48,327 psi | 79% | 2933 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,276 psi | 63% | 2618 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,001 psi | 66% | 2707 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,251 psi | 41% | 2428 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,019 psi | 72% | 2759 fps | 95.7% |
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 82 powders for .338 Lapua Mag. loaded with the .338 | 200gr | CutEdge MTH. Alliant Reloder-26 delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,054 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 82 of the 82 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 1:12.5 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, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .338 Lapua Mag. with the .338 | 200gr | CutEdge MTH 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.