Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 245gr | 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 Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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% | 52,794 psi | 87% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,549 psi | 90% | 2684 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 51,372 psi | 84% | 2733 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 53,301 psi | 88% | 2605 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,156 psi | 86% | 2687 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 53,301 psi | 88% | 2740 fps | 98.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,454 psi | 73% | 2582 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,204 psi | 64% | 2539 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,201 psi | 89% | 2625 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,156 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,098 psi | 87% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,677 psi | 85% | 2677 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,823 psi | 87% | 2733 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,809 psi | 88% | 2710 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,530 psi | 81% | 2713 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,867 psi | 88% | 2795 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 51,851 psi | 85% | 2720 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 55,042 psi | 90% | 2638 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,382 psi | 75% | 2644 fps | 97.5% |
| Bofors RP5 | <<locked>> | 96% | 52,823 psi | 87% | 2733 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 54,317 psi | 89% | 2638 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2664 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 86% | 53,229 psi | 87% | 2690 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 52,562 psi | 86% | 2648 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 53,432 psi | 88% | 2684 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,446 psi | 86% | 2667 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,417 psi | 86% | 2618 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,602 psi | 80% | 2766 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 53,142 psi | 87% | 2720 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 60% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,272 psi | 86% | 2625 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,663 psi | 86% | 2615 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 51,576 psi | 85% | 2628 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,795 psi | 90% | 2671 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,592 psi | 90% | 2772 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 52,881 psi | 87% | 2612 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,201 psi | 89% | 2654 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,357 psi | 83% | 2615 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 52,837 psi | 87% | 2674 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 34,577 psi | 57% | 2461 fps | 96.2% |
| Norma MRP | <<locked>> | 94% | 52,431 psi | 86% | 2756 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 53,388 psi | 88% | 2671 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,256 psi | 84% | 2730 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 52,156 psi | 86% | 2674 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,171 psi | 87% | 2726 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 62% | 1696 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,605 psi | 86% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,665 psi | 90% | 2707 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,997 psi | 87% | 2736 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,675 psi | 80% | 2759 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 51,692 psi | 85% | 2592 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,621 psi | 88% | 2661 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 94% | 54,389 psi | 89% | 2713 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 54,317 psi | 89% | 2638 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,881 psi | 87% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,201 psi | 89% | 2654 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,272 psi | 87% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,431 psi | 86% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,185 psi | 86% | 2569 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,940 psi | 89% | 2710 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 51,837 psi | 85% | 2589 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,532 psi | 85% | 2598 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 53,388 psi | 88% | 2674 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,027 psi | 90% | 2690 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 52,997 psi | 87% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,851 psi | 85% | 2615 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,563 psi | 90% | 2671 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 54,404 psi | 89% | 2671 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,576 psi | 86% | 2687 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,562 psi | 86% | 2749 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,895 psi | 85% | 2726 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,940 psi | 90% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,229 psi | 87% | 2690 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,157 psi | 89% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,027 psi | 90% | 2687 fps | 99.3% |
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% | 30,385 psi | 50% | 2234 fps | 96% |
| Accurate 4350 | <<locked>> | 80% | 41,408 psi | 68% | 2477 fps | 99.8% |
| Accurate MAGPRO | 83.4 gr | 90% | 44,512 psi | 73% | 2612 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 50,067 psi | 82% | 2559 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,275 psi | 61% | 2411 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 40,669 psi | 67% | 2510 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 98% | 41,437 psi | 68% | 2520 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 94% | 32,198 psi | 53% | 2365 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,908 psi | 84% | 2579 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,001 psi | 66% | 2487 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,064 psi | 76% | 2598 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,188 psi | 61% | 2411 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,027 psi | 57% | 2402 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,312 psi | 48% | 2264 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,312 psi | 48% | 2280 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,676 psi | 52% | 2382 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 37,217 psi | 61% | 2448 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,416 psi | 84% | 2592 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,552 psi | 65% | 2533 fps | 95.9% |
| Bofors RP5 | <<locked>> | 84% | 35,027 psi | 57% | 2402 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,947 psi | 74% | 2487 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 94% | 39,856 psi | 65% | 2493 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,410 psi | 71% | 2526 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 46,180 psi | 76% | 2543 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 43,526 psi | 71% | 2520 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,699 psi | 70% | 2503 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,652 psi | 62% | 2382 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 34,795 psi | 57% | 2464 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 42,424 psi | 70% | 2543 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 45% | 1480 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,524 psi | 67% | 2425 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,354 psi | 76% | 2513 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 39,610 psi | 65% | 2431 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,554 psi | 70% | 2467 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 90% | 41,582 psi | 68% | 2543 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 43,700 psi | 72% | 2464 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 42,003 psi | 69% | 2451 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 29,762 psi | 49% | 2218 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 40,118 psi | 66% | 2451 fps | 96.4% |
| Norma 217 | <<locked>> | 98% | 32,372 psi | 53% | 2402 fps | 95.1% |
| Norma MRP | 72.8 gr | 80% | 31,821 psi | 52% | 2349 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 41,002 psi | 67% | 2470 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 38,392 psi | 63% | 2490 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,798 psi | 65% | 2464 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 34,026 psi | 56% | 2375 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,050 psi | 46% | 1516 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,979 psi | 80% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,307 psi | 68% | 2497 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,813 psi | 65% | 2513 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,982 psi | 56% | 2444 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,443 psi | 80% | 2543 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,365 psi | 68% | 2451 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 82% | 36,405 psi | 60% | 2395 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,947 psi | 74% | 2487 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,700 psi | 72% | 2464 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 42,003 psi | 69% | 2451 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,835 psi | 82% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,327 psi | 81% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,786 psi | 70% | 2415 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,071 psi | 59% | 2388 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,486 psi | 80% | 2539 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,076 psi | 69% | 2438 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 37,695 psi | 62% | 2431 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,418 psi | 56% | 2323 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 46,441 psi | 76% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,511 psi | 70% | 2467 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 34,098 psi | 56% | 2310 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 41,800 psi | 69% | 2470 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 32,793 psi | 54% | 2333 fps | 98.9% |
| Vihtavuori N560 | 80.1 gr | 88% | 42,714 psi | 70% | 2575 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 42,105 psi | 69% | 2556 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,524 psi | 68% | 2434 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,584 psi | 72% | 2530 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,831 psi | 42% | 2260 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,042 psi | 59% | 2359 fps | 95.2% |
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 | 245gr | Lehigh Defense Match Solid. Winchester StaBALL HD delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,835 fps. ADI AR 2217 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 57–90 %, leaving at least 10 % headroom. The 245.0 gr projectile in 0.338" calls for a 1:10.0 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for .338 Lapua Mag. with the .338 | 245gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 7977 Enduron, IMR 8133 Enduron, Vihtavuori N170 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.