Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 285gr | Hornady ELD Match bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Winchester StaBALL HD.
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>> | 90% | 51,938 psi | 85% | 2451 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,026 psi | 87% | 2467 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 54,157 psi | 89% | 2595 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 88% | 53,708 psi | 88% | 2526 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 51,576 psi | 85% | 2536 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,968 psi | 87% | 2559 fps | 99.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,558 psi | 78% | 2533 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,012 psi | 89% | 2526 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,201 psi | 89% | 2516 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,476 psi | 88% | 2523 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 51,909 psi | 85% | 2536 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,272 psi | 87% | 2503 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 52,663 psi | 86% | 2566 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 53,301 psi | 88% | 2582 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 49,385 psi | 81% | 2582 fps | 96.9% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,968 psi | 87% | 2507 fps | 97.5% |
| Bofors RP15 | <<locked>> | 94% | 54,621 psi | 90% | 2572 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 52,286 psi | 86% | 2572 fps | 99.7% |
| Bofors RP5 | <<locked>> | 90% | 51,909 psi | 85% | 2536 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 55,027 psi | 90% | 2467 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 54,694 psi | 90% | 2582 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 54,476 psi | 89% | 2520 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 54,955 psi | 90% | 2533 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,940 psi | 89% | 2516 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,360 psi | 89% | 2448 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 51,532 psi | 85% | 2635 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,723 psi | 90% | 2552 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,420 psi | 61% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,330 psi | 88% | 2461 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,432 psi | 88% | 2464 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 52,460 psi | 86% | 2467 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 53,388 psi | 88% | 2572 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,163 psi | 71% | 2454 fps | 98.5% |
| Lovex S065 | <<locked>> | 82% | 53,882 psi | 88% | 2441 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 52,040 psi | 85% | 2438 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,316 psi | 88% | 2470 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,027 psi | 89% | 2510 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 43,526 psi | 71% | 2477 fps | 99.8% |
| Norma MRP | <<locked>> | 88% | 51,721 psi | 85% | 2552 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,056 psi | 90% | 2500 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,867 psi | 88% | 2589 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 84% | 53,780 psi | 88% | 2510 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 52,141 psi | 86% | 2530 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,348 psi | 63% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,011 psi | 87% | 2490 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 51,314 psi | 84% | 2516 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 51,692 psi | 85% | 2628 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,650 psi | 90% | 2648 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 54,911 psi | 90% | 2503 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 88% | 53,069 psi | 87% | 2513 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 55,027 psi | 90% | 2467 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,882 psi | 88% | 2441 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 52,040 psi | 85% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 52,794 psi | 87% | 2402 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 52,663 psi | 86% | 2507 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 52,649 psi | 86% | 2451 fps | 99% |
| Somchem S365 | <<locked>> | 84% | 52,272 psi | 86% | 2457 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,417 psi | 88% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 53,113 psi | 87% | 2444 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 52,968 psi | 87% | 2474 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 55,042 psi | 90% | 2533 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 82% | 52,359 psi | 86% | 2451 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 52,083 psi | 86% | 2484 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,056 psi | 90% | 2602 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 51,430 psi | 84% | 2539 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 98% | 51,895 psi | 85% | 2595 fps | 98.6% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,721 psi | 87% | 2644 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 52,402 psi | 86% | 2408 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,679 psi | 90% | 2520 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 51,343 psi | 84% | 2582 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,142 psi | 87% | 2484 fps | 99.9% |
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% | 37,376 psi | 61% | 2221 fps | 99.5% |
| Accurate 4350 | <<locked>> | 80% | 49,748 psi | 82% | 2425 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 38,116 psi | 63% | 2320 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 41,307 psi | 68% | 2329 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 36,825 psi | 60% | 2270 fps | 96.2% |
| ADI AR 2217 | <<locked>> | 86% | 33,489 psi | 55% | 2201 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 84% | 28,369 psi | 47% | 2119 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,684 psi | 68% | 2329 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,543 psi | 78% | 2425 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,379 psi | 68% | 2326 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,144 psi | 61% | 2280 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,940 psi | 59% | 2241 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,140 psi | 51% | 2178 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,711 psi | 65% | 2375 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 45,948 psi | 75% | 2520 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 44,092 psi | 72% | 2356 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 34,664 psi | 57% | 2228 fps | 96.8% |
| Bofors RP30 | <<locked>> | 84% | 32,663 psi | 54% | 2215 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 37,144 psi | 61% | 2280 fps | 97.8% |
| Bofors RP7 | <<locked>> | 80% | 51,808 psi | 85% | 2425 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 31,792 psi | 52% | 2162 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 51,053 psi | 84% | 2470 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,320 psi | 65% | 2277 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,595 psi | 63% | 2260 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,759 psi | 73% | 2320 fps | 100% |
| Hodgdon Retumbo | 71.3 gr | 80% | 30,356 psi | 50% | 2198 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 51,024 psi | 84% | 2503 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 46% | 1385 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,123 psi | 77% | 2369 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 47,050 psi | 77% | 2375 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,959 psi | 67% | 2274 fps | 97% |
| IMR 7828 SSC | <<locked>> | 80% | 35,621 psi | 58% | 2257 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 92% | 33,156 psi | 54% | 2247 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 50,589 psi | 83% | 2395 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,023 psi | 80% | 2395 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,242 psi | 53% | 2116 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 47,369 psi | 78% | 2411 fps | 99.4% |
| Norma 217 | <<locked>> | 88% | 29,196 psi | 48% | 2169 fps | 96% |
| Norma MRP | <<locked>> | 80% | 38,972 psi | 64% | 2343 fps | 99.2% |
| Norma URP | <<locked>> | 80% | 48,486 psi | 80% | 2411 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,085 psi | 58% | 2260 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 47,297 psi | 78% | 2415 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,328 psi | 51% | 2159 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,790 psi | 47% | 1421 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,676 psi | 82% | 2448 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,776 psi | 78% | 2467 fps | 100% |
| ReloadSwiss RS 76 | 76.4 gr | 80% | 29,341 psi | 48% | 2175 fps | 96.5% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 37,695 psi | 62% | 2359 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 42,598 psi | 70% | 2310 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 80% | 40,741 psi | 67% | 2313 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 80% | 51,808 psi | 85% | 2425 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,589 psi | 83% | 2395 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,023 psi | 80% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,443 psi | 81% | 2352 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,408 psi | 66% | 2310 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 43,192 psi | 71% | 2300 fps | 97.4% |
| Somchem S365 | <<locked>> | 80% | 45,803 psi | 75% | 2372 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,220 psi | 68% | 2297 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 80% | 49,937 psi | 82% | 2402 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,926 psi | 59% | 2192 fps | 97.8% |
| Vihtavuori N170 | <<locked>> | 96% | 51,590 psi | 85% | 2484 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 49,139 psi | 81% | 2408 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,321 psi | 66% | 2306 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,015 psi | 64% | 2333 fps | 96.6% |
| Vihtavuori N565 | <<locked>> | 82% | 34,418 psi | 56% | 2231 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 90% | 39,146 psi | 64% | 2372 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 96% | 45,847 psi | 75% | 2530 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,950 psi | 80% | 2365 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,242 psi | 84% | 2474 fps | 100% |
| Winchester StaBALL HD | 73.3 gr | 80% | 32,445 psi | 53% | 2280 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,753 psi | 62% | 2234 fps | 97.8% |
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 71 powders for .338 Lapua Mag. loaded with the .338 | 285gr | Hornady ELD Match. ReloadSwiss RS 80 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,648 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 285.0 gr projectile in 0.338" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for .338 Lapua Mag. with the .338 | 285gr | Hornady ELD Match 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.