Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 225gr | CutEdge LZR bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Norma MRP.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 55,071 psi | 90% | 2723 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 53,751 psi | 88% | 2772 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,259 psi | 89% | 2700 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 51,996 psi | 85% | 2762 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 52,388 psi | 86% | 2854 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 54,607 psi | 90% | 2736 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,069 psi | 87% | 2808 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 54,418 psi | 89% | 2864 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,144 psi | 61% | 2579 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,011 psi | 85% | 2707 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,214 psi | 87% | 2822 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,157 psi | 89% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,605 psi | 86% | 2799 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,650 psi | 88% | 2858 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,389 psi | 89% | 2835 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,079 psi | 77% | 2779 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,679 psi | 90% | 2923 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,649 psi | 86% | 2838 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 52,620 psi | 86% | 2723 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 53,650 psi | 88% | 2858 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 52,243 psi | 86% | 2713 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,543 psi | 76% | 2720 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 52,968 psi | 87% | 2740 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,215 psi | 89% | 2815 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 53,824 psi | 88% | 2776 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 54,636 psi | 90% | 2808 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,388 psi | 88% | 2789 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,476 psi | 88% | 2746 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,977 psi | 75% | 2818 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 88% | 54,563 psi | 90% | 2851 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 60% | 1732 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,070 psi | 89% | 2720 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,403 psi | 88% | 2749 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,954 psi | 89% | 2743 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 52,533 psi | 86% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,489 psi | 86% | 2740 fps | 97% |
| IMR 7828 SSC | <<locked>> | 98% | 51,866 psi | 85% | 2831 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 54,099 psi | 89% | 2710 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,056 psi | 89% | 2740 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 51,909 psi | 85% | 2730 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,616 psi | 78% | 2677 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 54,853 psi | 90% | 2766 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,230 psi | 89% | 2802 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 53,316 psi | 88% | 2881 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 54,476 psi | 89% | 2802 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,330 psi | 86% | 2851 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 53,359 psi | 88% | 2805 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,299 psi | 83% | 2789 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 61% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,011 psi | 87% | 2730 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,737 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,938 psi | 85% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,259 psi | 89% | 2867 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,079 psi | 76% | 2815 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 84% | 52,866 psi | 87% | 2720 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,694 psi | 90% | 2782 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 51,909 psi | 85% | 2785 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 52,243 psi | 86% | 2713 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,056 psi | 89% | 2740 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 54,099 psi | 89% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 51,909 psi | 85% | 2730 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,462 psi | 89% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,693 psi | 88% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,403 psi | 88% | 2690 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,911 psi | 90% | 2835 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 52,881 psi | 87% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,852 psi | 87% | 2723 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 54,128 psi | 89% | 2802 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,359 psi | 86% | 2759 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,012 psi | 89% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,953 psi | 87% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,909 psi | 85% | 2740 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 54,911 psi | 90% | 2690 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 52,083 psi | 86% | 2749 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,113 psi | 87% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,534 psi | 88% | 2871 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2782 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,373 psi | 86% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,404 psi | 89% | 2818 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,299 psi | 83% | 2904 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,344 psi | 86% | 2756 fps | 98.5% |
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 2700 | <<locked>> | 80% | 51,445 psi | 84% | 2667 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 30,690 psi | 50% | 2333 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 50,952 psi | 84% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,131 psi | 64% | 2539 fps | 99.2% |
| Accurate MAGPRO | 89 gr | 94% | 48,704 psi | 80% | 2792 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 48,095 psi | 79% | 2638 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,741 psi | 67% | 2582 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,353 psi | 73% | 2680 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 34,780 psi | 57% | 2520 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,863 psi | 80% | 2661 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,203 psi | 63% | 2552 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,598 psi | 72% | 2671 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,480 psi | 66% | 2579 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,116 psi | 63% | 2569 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,847 psi | 46% | 2313 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,733 psi | 49% | 2379 fps | 95% |
| Alliant Reloder-26 | 76.6 gr | 80% | 29,878 psi | 49% | 2421 fps | 96.1% |
| Bofors RP15 | <<locked>> | 92% | 40,248 psi | 66% | 2612 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 49,168 psi | 81% | 2671 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 38,116 psi | 63% | 2569 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 43,047 psi | 71% | 2552 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 96% | 40,538 psi | 67% | 2598 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 49,559 psi | 81% | 2687 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,321 psi | 68% | 2589 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,222 psi | 73% | 2608 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 47,456 psi | 78% | 2690 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,557 psi | 76% | 2674 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,679 psi | 59% | 2444 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,753 psi | 62% | 2631 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 40,335 psi | 66% | 2602 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 45% | 1545 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,604 psi | 83% | 2667 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,667 psi | 63% | 2484 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,628 psi | 73% | 2585 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 37,710 psi | 62% | 2493 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,311 psi | 76% | 2635 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 45,397 psi | 75% | 2717 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 50,850 psi | 83% | 2664 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,003 psi | 69% | 2533 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 40,248 psi | 66% | 2516 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 32,068 psi | 53% | 2365 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 51,387 psi | 84% | 2713 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,060 psi | 67% | 2569 fps | 95.7% |
| Norma MRP | 78.1 gr | 84% | 34,766 psi | 57% | 2516 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 39,073 psi | 64% | 2536 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 42,090 psi | 69% | 2661 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 37,942 psi | 62% | 2526 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 37,318 psi | 61% | 2539 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,804 psi | 46% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,516 psi | 81% | 2674 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,369 psi | 76% | 2720 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,088 psi | 64% | 2556 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,913 psi | 62% | 2572 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,563 psi | 57% | 2543 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 46,325 psi | 76% | 2621 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,235 psi | 69% | 2566 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 39,523 psi | 65% | 2559 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 43,047 psi | 71% | 2552 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,003 psi | 69% | 2533 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 50,850 psi | 83% | 2664 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,248 psi | 66% | 2516 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,761 psi | 78% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,485 psi | 78% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,060 psi | 67% | 2480 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,175 psi | 64% | 2552 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 46,528 psi | 76% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,137 psi | 76% | 2608 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,447 psi | 58% | 2490 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,998 psi | 57% | 2431 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 44,527 psi | 73% | 2549 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,408 psi | 66% | 2533 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,043 psi | 61% | 2470 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 51,488 psi | 85% | 2644 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,856 psi | 65% | 2536 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,850 psi | 51% | 2382 fps | 97.6% |
| Vihtavuori N560 | <<locked>> | 92% | 46,557 psi | 76% | 2753 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 98% | 45,600 psi | 75% | 2723 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,624 psi | 65% | 2503 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,481 psi | 68% | 2592 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,497 psi | 40% | 2287 fps | 96.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,392 psi | 65% | 2523 fps | 95.4% |
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 87 powders for .338 Lapua Mag. loaded with the .338 | 225gr | CutEdge LZR. Alliant Reloder-26 delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,923 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Accurate MAGPRO, Norma MRP rank at the top here: for .338 Lapua Mag. with the .338 | 225gr | CutEdge LZR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.