Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 230gr | CutEdge ESP Raptor bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ReloadSwiss RS 70.
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% | 53,969 psi | 89% | 2664 fps | 99.1% |
| Accurate 3100 | <<locked>> | 98% | 51,996 psi | 85% | 2710 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 53,026 psi | 87% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,201 psi | 89% | 2756 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,433 psi | 89% | 2851 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 53,432 psi | 88% | 2680 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 51,866 psi | 85% | 2749 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 52,895 psi | 87% | 2799 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,114 psi | 59% | 2520 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,317 psi | 89% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,331 psi | 89% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 51,793 psi | 85% | 2762 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,750 psi | 87% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,679 psi | 90% | 2792 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,040 psi | 85% | 2795 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,765 psi | 87% | 2776 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,672 psi | 75% | 2717 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,750 psi | 87% | 2861 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,024 psi | 84% | 2776 fps | 98.4% |
| Bofors RP3 | <<locked>> | 84% | 54,911 psi | 90% | 2717 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,040 psi | 85% | 2795 fps | 98.6% |
| Bofors RP7 | <<locked>> | 88% | 54,447 psi | 89% | 2710 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,324 psi | 74% | 2657 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 82% | 51,880 psi | 85% | 2684 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,779 psi | 87% | 2753 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 52,736 psi | 87% | 2720 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 96% | 53,011 psi | 87% | 2743 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,982 psi | 85% | 2726 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,924 psi | 85% | 2687 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,643 psi | 73% | 2753 fps | 97.9% |
| Hodgdon Superformance | <<locked>> | 88% | 52,794 psi | 87% | 2785 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 60% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,982 psi | 87% | 2664 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,286 psi | 86% | 2694 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,823 psi | 87% | 2687 fps | 99.4% |
| IMR 4831 | <<locked>> | 92% | 54,752 psi | 90% | 2749 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,810 psi | 90% | 2736 fps | 97.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,070 psi | 89% | 2831 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 52,997 psi | 87% | 2654 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,765 psi | 87% | 2680 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 53,983 psi | 89% | 2720 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,238 psi | 76% | 2621 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 53,635 psi | 88% | 2707 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,794 psi | 87% | 2740 fps | 98.4% |
| Norma MRP | <<locked>> | 96% | 51,663 psi | 85% | 2818 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 52,953 psi | 87% | 2740 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,549 psi | 90% | 2733 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,578 psi | 90% | 2848 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 51,895 psi | 85% | 2743 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,689 psi | 80% | 2723 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 61% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,880 psi | 85% | 2671 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,228 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,259 psi | 89% | 2779 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,649 psi | 86% | 2805 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,541 psi | 73% | 2743 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 82% | 54,824 psi | 90% | 2664 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 51,692 psi | 85% | 2664 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,519 psi | 88% | 2723 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 96% | 53,954 psi | 89% | 2779 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 88% | 54,447 psi | 89% | 2710 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,765 psi | 87% | 2680 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 52,997 psi | 87% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,983 psi | 89% | 2720 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,301 psi | 88% | 2723 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,634 psi | 86% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,214 psi | 86% | 2635 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,505 psi | 88% | 2772 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 51,750 psi | 85% | 2661 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,955 psi | 90% | 2713 fps | 97.2% |
| Somchem S365 | <<locked>> | 92% | 52,576 psi | 86% | 2743 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,447 psi | 89% | 2753 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 52,982 psi | 87% | 2638 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,648 psi | 85% | 2687 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,809 psi | 88% | 2730 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 82% | 53,867 psi | 88% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,041 psi | 89% | 2740 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 51,547 psi | 85% | 2749 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 51,938 psi | 85% | 2808 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,427 psi | 78% | 2720 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,679 psi | 90% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,997 psi | 87% | 2756 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,124 psi | 79% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,592 psi | 90% | 2749 fps | 98.8% |
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% | 50,488 psi | 83% | 2612 fps | 98.7% |
| Accurate 3100 | <<locked>> | 84% | 31,923 psi | 52% | 2333 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 49,690 psi | 82% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,087 psi | 63% | 2484 fps | 99% |
| Accurate MAGPRO | <<locked>> | 94% | 47,181 psi | 77% | 2730 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 47,195 psi | 77% | 2582 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,755 psi | 65% | 2526 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 94% | 46,296 psi | 76% | 2684 fps | 96% |
| ADI AR 2225 | <<locked>> | 98% | 33,895 psi | 56% | 2461 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,718 psi | 78% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,966 psi | 84% | 2671 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,188 psi | 61% | 2497 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,482 psi | 70% | 2615 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,494 psi | 65% | 2520 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,624 psi | 65% | 2566 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,050 psi | 44% | 2260 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,893 psi | 51% | 2382 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,008 psi | 48% | 2365 fps | 95.7% |
| Bofors RP15 | <<locked>> | 92% | 39,088 psi | 64% | 2552 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 48,095 psi | 79% | 2615 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,624 psi | 65% | 2566 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 42,235 psi | 69% | 2500 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 42,206 psi | 69% | 2595 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 48,428 psi | 80% | 2631 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 40,277 psi | 66% | 2533 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 80% | 43,294 psi | 71% | 2552 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 46,369 psi | 76% | 2635 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,295 psi | 74% | 2612 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,766 psi | 57% | 2392 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,189 psi | 64% | 2628 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 39,276 psi | 64% | 2546 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 45% | 1516 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,632 psi | 81% | 2615 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,942 psi | 62% | 2431 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,685 psi | 72% | 2530 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 36,724 psi | 60% | 2441 fps | 98.8% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,295 psi | 74% | 2579 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 44,005 psi | 72% | 2651 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 49,879 psi | 82% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,002 psi | 67% | 2480 fps | 98.6% |
| Lovex S070 | <<locked>> | 80% | 39,305 psi | 65% | 2464 fps | 97.3% |
| Lovex S071 | <<locked>> | 88% | 31,125 psi | 51% | 2313 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 50,314 psi | 83% | 2657 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,987 psi | 66% | 2510 fps | 95.4% |
| Norma MRP | 75 gr | 84% | 33,765 psi | 55% | 2461 fps | 95% |
| Norma URP | <<locked>> | 80% | 38,043 psi | 62% | 2480 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 80% | 50,923 psi | 84% | 2684 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,859 psi | 72% | 2661 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 36,956 psi | 61% | 2470 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 92% | 36,056 psi | 59% | 2477 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 45% | 1552 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,515 psi | 80% | 2618 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,223 psi | 74% | 2664 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,029 psi | 62% | 2503 fps | 98.8% |
| ReloadSwiss RS 70 | 72.9 gr | 80% | 36,927 psi | 61% | 2513 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,926 psi | 59% | 2546 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 51,605 psi | 85% | 2618 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,237 psi | 74% | 2566 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,990 psi | 72% | 2562 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 38,450 psi | 63% | 2503 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 42,235 psi | 69% | 2500 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,002 psi | 67% | 2480 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 49,879 psi | 82% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,305 psi | 65% | 2464 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,644 psi | 77% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,514 psi | 76% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,205 psi | 66% | 2428 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,087 psi | 63% | 2497 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 45,411 psi | 75% | 2562 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,109 psi | 79% | 2605 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 34,563 psi | 57% | 2441 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 36,434 psi | 60% | 2431 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 43,497 psi | 71% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,436 psi | 65% | 2477 fps | 99.1% |
| Vihtavuori N165 | <<locked>> | 88% | 35,998 psi | 59% | 2415 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 50,401 psi | 83% | 2592 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,827 psi | 64% | 2480 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,979 psi | 49% | 2333 fps | 97.3% |
| Vihtavuori N560 | 82.1 gr | 92% | 45,136 psi | 74% | 2687 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 98% | 44,164 psi | 73% | 2661 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,522 psi | 63% | 2451 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,408 psi | 66% | 2536 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,830 psi | 39% | 2234 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,421 psi | 63% | 2470 fps | 95.1% |
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 90 powders for .338 Lapua Mag. loaded with the .338 | 230gr | CutEdge ESP Raptor. Alliant Reloder-26 delivers the highest muzzle velocity at 2,861 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,861 fps. ADI AR 2217 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 230.0 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-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. Norma MRP, Vihtavuori N560, ReloadSwiss RS 70 rank at the top here: for .338 Lapua Mag. with the .338 | 230gr | CutEdge ESP Raptor 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.