Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 267gr | CutEdge MTAC bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 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>> | 94% | 52,910 psi | 87% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,563 psi | 90% | 2572 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,491 psi | 89% | 2684 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 51,648 psi | 85% | 2635 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 90% | 51,982 psi | 85% | 2579 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 53,243 psi | 87% | 2638 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,572 psi | 78% | 2543 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,163 psi | 69% | 2510 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,141 psi | 86% | 2575 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,199 psi | 86% | 2575 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,055 psi | 87% | 2589 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 51,532 psi | 85% | 2569 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,069 psi | 87% | 2631 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,128 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,330 psi | 88% | 2657 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,447 psi | 89% | 2687 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,866 psi | 85% | 2549 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 52,098 psi | 86% | 2615 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,284 psi | 81% | 2605 fps | 99% |
| Bofors RP5 | <<locked>> | 94% | 53,069 psi | 87% | 2631 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 53,780 psi | 88% | 2526 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,562 psi | 86% | 2625 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 52,808 psi | 87% | 2575 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 52,257 psi | 86% | 2536 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 53,301 psi | 88% | 2582 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,098 psi | 86% | 2562 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 52,402 psi | 86% | 2507 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,388 psi | 86% | 2726 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,055 psi | 87% | 2612 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 61% | 1588 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,040 psi | 85% | 2520 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,098 psi | 86% | 2503 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 54,998 psi | 90% | 2566 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,404 psi | 89% | 2562 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 96% | 54,708 psi | 90% | 2667 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 37,579 psi | 62% | 2415 fps | 96.1% |
| Lovex S065 | <<locked>> | 84% | 52,504 psi | 86% | 2500 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 53,940 psi | 89% | 2543 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,983 psi | 89% | 2559 fps | 100% |
| Norma 204 | <<locked>> | 86% | 52,576 psi | 86% | 2566 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 37,579 psi | 62% | 2438 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 52,692 psi | 87% | 2648 fps | 100% |
| Norma URP | <<locked>> | 86% | 53,345 psi | 88% | 2559 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 51,358 psi | 84% | 2631 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 52,098 psi | 86% | 2566 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,447 psi | 88% | 2625 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,681 psi | 62% | 1624 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,534 psi | 90% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 52,895 psi | 87% | 2621 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,736 psi | 87% | 2723 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,398 psi | 78% | 2615 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 54,824 psi | 90% | 2520 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 53,258 psi | 87% | 2552 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 54,534 psi | 90% | 2612 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 53,780 psi | 88% | 2526 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 52,504 psi | 86% | 2500 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 53,940 psi | 89% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,955 psi | 90% | 2503 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,099 psi | 89% | 2605 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 54,752 psi | 90% | 2516 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,621 psi | 90% | 2546 fps | 98.7% |
| Somchem S365 | <<locked>> | 88% | 53,490 psi | 88% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,781 psi | 90% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 52,373 psi | 86% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 51,503 psi | 85% | 2503 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,360 psi | 89% | 2566 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 54,172 psi | 89% | 2556 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 52,794 psi | 87% | 2579 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 52,663 psi | 86% | 2648 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 52,257 psi | 86% | 2628 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,805 psi | 80% | 2621 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,418 psi | 89% | 2513 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,011 psi | 87% | 2575 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 51,430 psi | 84% | 2677 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,926 psi | 90% | 2582 fps | 99.7% |
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 3100 | <<locked>> | 80% | 32,764 psi | 54% | 2201 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 44,382 psi | 73% | 2425 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 35,636 psi | 59% | 2346 fps | 95.1% |
| Accurate MAGPRO | 79.2 gr | 86% | 41,698 psi | 68% | 2464 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 37,159 psi | 61% | 2316 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 84% | 37,811 psi | 62% | 2359 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 92% | 36,318 psi | 60% | 2326 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 30,414 psi | 50% | 2238 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,536 psi | 62% | 2320 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,859 psi | 70% | 2434 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,443 psi | 81% | 2536 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,188 psi | 61% | 2316 fps | 96.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 32,822 psi | 54% | 2257 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,647 psi | 52% | 2228 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,499 psi | 45% | 2146 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,403 psi | 56% | 2352 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 48,776 psi | 80% | 2500 fps | 95.5% |
| Bofors RP15 | <<locked>> | 82% | 32,692 psi | 54% | 2254 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 34,853 psi | 57% | 2336 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 32,822 psi | 54% | 2257 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 47,384 psi | 78% | 2431 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 34,766 psi | 57% | 2293 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 46,253 psi | 76% | 2474 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 48,863 psi | 80% | 2487 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 40,451 psi | 66% | 2365 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 39,682 psi | 65% | 2352 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,234 psi | 66% | 2326 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 32,764 psi | 54% | 2326 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 45,629 psi | 75% | 2497 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 45% | 1417 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,917 psi | 70% | 2372 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,950 psi | 80% | 2454 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 42,264 psi | 69% | 2375 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 39,639 psi | 65% | 2316 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 84% | 36,390 psi | 60% | 2339 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,143 psi | 58% | 2362 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 46,296 psi | 76% | 2408 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 44,512 psi | 73% | 2398 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 28,065 psi | 46% | 2087 fps | 96% |
| Norma 204 | <<locked>> | 80% | 42,757 psi | 70% | 2405 fps | 98% |
| Norma 217 | <<locked>> | 94% | 30,748 psi | 50% | 2277 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 34,301 psi | 56% | 2320 fps | 97.4% |
| Norma URP | <<locked>> | 80% | 43,700 psi | 72% | 2415 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 35,853 psi | 59% | 2343 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 42,511 psi | 70% | 2415 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 31,720 psi | 52% | 2234 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 46% | 1453 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,338 psi | 73% | 2444 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,685 psi | 70% | 2464 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 29,559 psi | 49% | 2241 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 40,828 psi | 67% | 2493 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 51,372 psi | 84% | 2477 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 38,566 psi | 63% | 2300 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 80% | 36,448 psi | 60% | 2300 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 80% | 47,384 psi | 78% | 2431 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,296 psi | 76% | 2408 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 44,512 psi | 73% | 2398 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,179 psi | 74% | 2359 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,129 psi | 59% | 2297 fps | 96.6% |
| Somchem S355 | <<locked>> | 80% | 51,401 psi | 84% | 2474 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 39,073 psi | 64% | 2290 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 40,611 psi | 67% | 2375 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,825 psi | 60% | 2283 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,110 psi | 81% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,237 psi | 74% | 2411 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 31,879 psi | 52% | 2172 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 44,512 psi | 73% | 2415 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 35,389 psi | 58% | 2293 fps | 99.8% |
| Vihtavuori N560 | 75.9 gr | 84% | 39,842 psi | 65% | 2421 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 88% | 37,014 psi | 61% | 2359 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 96% | 42,366 psi | 70% | 2507 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,309 psi | 73% | 2379 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,441 psi | 76% | 2477 fps | 99.7% |
| Winchester StaBALL HD | 71.5 gr | 80% | 27,847 psi | 46% | 2241 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 33,649 psi | 55% | 2218 fps | 95.5% |
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 75 powders for .338 Lapua Mag. loaded with the .338 | 267gr | CutEdge MTAC. Hodgdon Retumbo delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,726 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 267.0 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. Winchester StaBALL HD, Vihtavuori N560, Accurate MAGPRO rank at the top here: for .338 Lapua Mag. with the .338 | 267gr | CutEdge MTAC 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.