Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 250gr | CutEdge LZR 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% | 52,924 psi | 87% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,708 psi | 90% | 2657 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 51,590 psi | 85% | 2710 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 53,447 psi | 88% | 2579 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,185 psi | 86% | 2661 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 53,432 psi | 88% | 2713 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,411 psi | 73% | 2556 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,218 psi | 64% | 2516 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,404 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,489 psi | 86% | 2664 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,272 psi | 87% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,880 psi | 85% | 2651 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,997 psi | 87% | 2707 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,940 psi | 89% | 2684 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,748 psi | 82% | 2687 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,128 psi | 89% | 2769 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 51,982 psi | 85% | 2694 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 55,100 psi | 90% | 2612 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,629 psi | 75% | 2625 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 52,997 psi | 87% | 2707 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 54,346 psi | 89% | 2612 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,066 psi | 81% | 2641 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 86% | 53,185 psi | 87% | 2661 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 52,852 psi | 87% | 2621 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 53,563 psi | 88% | 2657 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,533 psi | 86% | 2641 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,591 psi | 86% | 2592 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,646 psi | 80% | 2740 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 86% | 53,461 psi | 88% | 2697 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,753 psi | 60% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,417 psi | 86% | 2598 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,692 psi | 87% | 2589 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 51,706 psi | 85% | 2602 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,042 psi | 90% | 2648 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 98% | 54,795 psi | 90% | 2746 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 52,953 psi | 87% | 2582 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,331 psi | 89% | 2628 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,430 psi | 83% | 2589 fps | 100% |
| Norma 204 | <<locked>> | 88% | 53,069 psi | 87% | 2648 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 34,693 psi | 57% | 2441 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 52,634 psi | 86% | 2730 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 53,563 psi | 88% | 2644 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,503 psi | 85% | 2707 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 52,359 psi | 86% | 2651 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,272 psi | 87% | 2700 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 62% | 1677 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,721 psi | 87% | 2664 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,926 psi | 90% | 2684 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,272 psi | 87% | 2710 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,863 psi | 80% | 2736 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 51,909 psi | 85% | 2566 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,853 psi | 88% | 2635 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 94% | 54,665 psi | 90% | 2690 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 54,346 psi | 89% | 2612 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,953 psi | 87% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,331 psi | 89% | 2628 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,563 psi | 88% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,518 psi | 86% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,286 psi | 86% | 2543 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,215 psi | 89% | 2687 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 51,808 psi | 85% | 2559 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,634 psi | 85% | 2575 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 53,359 psi | 88% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 51,503 psi | 85% | 2612 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 53,040 psi | 87% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,953 psi | 85% | 2589 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,491 psi | 89% | 2644 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 54,592 psi | 90% | 2644 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,634 psi | 86% | 2661 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,736 psi | 87% | 2723 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,953 psi | 85% | 2700 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,013 psi | 90% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,388 psi | 88% | 2661 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,549 psi | 90% | 2808 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,358 psi | 84% | 2608 fps | 99% |
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% | 30,371 psi | 50% | 2211 fps | 96.2% |
| Accurate 4350 | <<locked>> | 80% | 41,423 psi | 68% | 2451 fps | 99.9% |
| Accurate MAGPRO | 82.3 gr | 90% | 44,614 psi | 73% | 2589 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,183 psi | 82% | 2533 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,420 psi | 61% | 2392 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 40,814 psi | 67% | 2490 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 38,885 psi | 64% | 2441 fps | 95% |
| ADI AR 2225 | <<locked>> | 94% | 32,271 psi | 53% | 2346 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,024 psi | 84% | 2549 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,263 psi | 66% | 2467 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,151 psi | 76% | 2572 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,809 psi | 57% | 2333 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,230 psi | 58% | 2382 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,530 psi | 48% | 2247 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 27,528 psi | 45% | 2205 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,749 psi | 52% | 2359 fps | 98.2% |
| Bofors RP15 | <<locked>> | 86% | 34,896 psi | 57% | 2375 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,619 psi | 85% | 2566 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 37,086 psi | 61% | 2454 fps | 95.1% |
| Bofors RP5 | <<locked>> | 84% | 35,230 psi | 58% | 2382 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 45,049 psi | 74% | 2464 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 37,347 psi | 61% | 2411 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 43,424 psi | 71% | 2500 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 46,354 psi | 76% | 2516 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 88% | 43,700 psi | 72% | 2497 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 42,830 psi | 70% | 2480 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,739 psi | 62% | 2359 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 34,925 psi | 57% | 2444 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 42,583 psi | 70% | 2520 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,456 psi | 45% | 1460 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,654 psi | 67% | 2402 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,470 psi | 76% | 2487 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 39,740 psi | 65% | 2408 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 42,656 psi | 70% | 2441 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 88% | 39,059 psi | 64% | 2464 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 43,976 psi | 72% | 2441 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 42,134 psi | 69% | 2428 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 27,876 psi | 46% | 2149 fps | 95% |
| Norma 204 | <<locked>> | 80% | 40,277 psi | 66% | 2428 fps | 96.6% |
| Norma 217 | <<locked>> | 98% | 32,474 psi | 53% | 2385 fps | 95.4% |
| Norma MRP | 71.8 gr | 80% | 31,879 psi | 52% | 2329 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 41,133 psi | 68% | 2448 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 38,580 psi | 63% | 2467 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,972 psi | 66% | 2441 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 34,084 psi | 56% | 2352 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 46% | 1493 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,037 psi | 81% | 2615 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,394 psi | 68% | 2474 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,885 psi | 65% | 2487 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 31,720 psi | 52% | 2359 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,588 psi | 80% | 2516 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 38,914 psi | 64% | 2375 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 82% | 36,376 psi | 60% | 2369 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,049 psi | 74% | 2464 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,976 psi | 72% | 2441 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,134 psi | 69% | 2428 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,067 psi | 82% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,400 psi | 81% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,931 psi | 70% | 2392 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,056 psi | 59% | 2365 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,747 psi | 80% | 2516 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,221 psi | 69% | 2415 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,840 psi | 62% | 2408 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,577 psi | 57% | 2303 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 46,572 psi | 76% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,496 psi | 70% | 2441 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,142 psi | 56% | 2290 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 41,829 psi | 69% | 2444 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 32,924 psi | 54% | 2313 fps | 99% |
| Vihtavuori N560 | 79 gr | 88% | 42,757 psi | 70% | 2552 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 92% | 39,320 psi | 65% | 2474 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,597 psi | 68% | 2411 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,598 psi | 72% | 2503 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,947 psi | 43% | 2241 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,158 psi | 59% | 2339 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 | 250gr | CutEdge LZR. Winchester StaBALL HD delivers the highest muzzle velocity at 2,808 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,808 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 57–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:9.5 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 | 250gr | CutEdge LZR 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.