Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 250gr | Lehigh Defense Match Solid bullet and 75 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% | 54,911 psi | 90% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 53,055 psi | 87% | 2641 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,679 psi | 88% | 2749 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 54,911 psi | 90% | 2608 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,012 psi | 89% | 2694 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 51,779 psi | 85% | 2697 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,079 psi | 76% | 2595 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,872 psi | 67% | 2559 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,215 psi | 89% | 2694 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,532 psi | 85% | 2657 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,621 psi | 88% | 2687 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 51,547 psi | 85% | 2694 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,518 psi | 86% | 2671 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,735 psi | 85% | 2723 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,431 psi | 86% | 2749 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,085 psi | 89% | 2664 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 54,099 psi | 89% | 2730 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,630 psi | 78% | 2661 fps | 98.3% |
| Bofors RP5 | <<locked>> | 94% | 51,547 psi | 85% | 2694 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 52,533 psi | 86% | 2592 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,010 psi | 84% | 2680 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 54,940 psi | 90% | 2694 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 54,375 psi | 89% | 2654 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 51,779 psi | 85% | 2641 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,389 psi | 89% | 2680 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,404 psi | 89% | 2621 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,734 psi | 83% | 2785 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 51,430 psi | 84% | 2674 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,825 psi | 60% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,998 psi | 89% | 2631 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,157 psi | 89% | 2618 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 53,490 psi | 88% | 2631 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,098 psi | 87% | 2628 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 53,069 psi | 87% | 2730 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 54,476 psi | 89% | 2615 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,518 psi | 86% | 2608 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,446 psi | 86% | 2621 fps | 100% |
| Norma 204 | <<locked>> | 88% | 54,839 psi | 90% | 2684 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 36,143 psi | 59% | 2480 fps | 97.2% |
| Norma MRP | <<locked>> | 94% | 54,882 psi | 90% | 2769 fps | 100% |
| Norma URP | <<locked>> | 86% | 51,764 psi | 85% | 2625 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,592 psi | 88% | 2746 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 54,215 psi | 89% | 2684 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 51,561 psi | 85% | 2684 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 62% | 1686 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,839 psi | 90% | 2694 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,040 psi | 87% | 2664 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 51,300 psi | 84% | 2687 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,923 psi | 84% | 2779 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 45,759 psi | 75% | 2664 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 82% | 53,476 psi | 88% | 2592 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 52,025 psi | 85% | 2615 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 92% | 52,997 psi | 87% | 2674 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 52,533 psi | 86% | 2592 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,476 psi | 89% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,518 psi | 86% | 2608 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,809 psi | 88% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,708 psi | 88% | 2569 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,576 psi | 86% | 2667 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 53,330 psi | 88% | 2585 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,272 psi | 87% | 2608 fps | 98% |
| Somchem S365 | <<locked>> | 88% | 51,822 psi | 85% | 2628 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,461 psi | 88% | 2648 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 54,636 psi | 90% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,722 psi | 88% | 2621 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,852 psi | 87% | 2628 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 52,721 psi | 87% | 2625 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,636 psi | 90% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,853 psi | 90% | 2762 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,157 psi | 89% | 2740 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 47,166 psi | 77% | 2674 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,142 psi | 87% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 51,619 psi | 85% | 2641 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 53,069 psi | 87% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,374 psi | 88% | 2644 fps | 99.4% |
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% | 31,604 psi | 52% | 2244 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 42,946 psi | 71% | 2484 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 43,395 psi | 71% | 2572 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 51,474 psi | 85% | 2559 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,056 psi | 59% | 2369 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 86% | 39,407 psi | 65% | 2467 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 40,321 psi | 66% | 2484 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 31,386 psi | 52% | 2329 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,611 psi | 68% | 2497 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,892 psi | 79% | 2605 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,042 psi | 59% | 2365 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 82% | 34,113 psi | 56% | 2362 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,589 psi | 50% | 2277 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,471 psi | 47% | 2241 fps | 96% |
| Alliant Reloder-26 | 76.4 gr | 80% | 33,214 psi | 55% | 2398 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 50,749 psi | 83% | 2612 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 36,230 psi | 59% | 2408 fps | 95.7% |
| Bofors RP30 | <<locked>> | 94% | 38,740 psi | 64% | 2497 fps | 96% |
| Bofors RP5 | <<locked>> | 82% | 34,113 psi | 56% | 2362 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,253 psi | 76% | 2490 fps | 99% |
| Hodgdon H1000 | <<locked>> | 92% | 38,653 psi | 63% | 2451 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 44,991 psi | 74% | 2533 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 47,718 psi | 78% | 2549 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 42,134 psi | 69% | 2477 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,336 psi | 68% | 2457 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,044 psi | 64% | 2385 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 33,968 psi | 56% | 2428 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 44,164 psi | 73% | 2552 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 45% | 1470 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,771 psi | 69% | 2431 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,805 psi | 78% | 2520 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 41,176 psi | 68% | 2438 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,249 psi | 68% | 2425 fps | 95.4% |
| IMR 7828 SSC | 78.5 gr | 88% | 40,451 psi | 66% | 2503 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 45,150 psi | 74% | 2470 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,482 psi | 71% | 2461 fps | 99.1% |
| Lovex S071 | <<locked>> | 82% | 28,950 psi | 48% | 2178 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 41,568 psi | 68% | 2461 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 31,618 psi | 52% | 2365 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 33,170 psi | 54% | 2365 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 42,583 psi | 70% | 2477 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 37,231 psi | 61% | 2448 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,278 psi | 68% | 2470 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 33,011 psi | 54% | 2333 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,137 psi | 46% | 1509 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,894 psi | 84% | 2644 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,946 psi | 71% | 2507 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,452 psi | 68% | 2523 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,996 psi | 54% | 2402 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 42,467 psi | 70% | 2602 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,154 psi | 82% | 2546 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,132 psi | 66% | 2408 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 35,259 psi | 58% | 2349 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 46,253 psi | 76% | 2490 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,150 psi | 74% | 2470 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,482 psi | 71% | 2461 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,720 psi | 83% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,150 psi | 72% | 2421 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 34,940 psi | 57% | 2346 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 50,125 psi | 82% | 2543 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 40,785 psi | 67% | 2398 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,233 psi | 64% | 2434 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,795 psi | 59% | 2336 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 48,008 psi | 79% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,932 psi | 72% | 2470 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 33,083 psi | 54% | 2270 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,308 psi | 71% | 2477 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,200 psi | 56% | 2346 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 41,481 psi | 68% | 2533 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 92% | 41,031 psi | 67% | 2513 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 44,034 psi | 72% | 2615 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,931 psi | 70% | 2438 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,165 psi | 74% | 2536 fps | 99.3% |
| Winchester StaBALL HD | 73.3 gr | 80% | 26,919 psi | 44% | 2280 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 35,041 psi | 58% | 2320 fps | 95.3% |
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 80 powders for .338 Lapua Mag. loaded with the .338 | 250gr | Lehigh Defense Match Solid. Winchester StaBALL HD delivers the highest muzzle velocity at 2,789 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,789 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 250.0 gr projectile in 0.338" calls for a 1:11.0 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 | 250gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 Enduron 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.