Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 225gr | CutEdge ESP Raptor bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Ramshot Grand, Accurate MAGPRO and Alliant Reloder-26.
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% | 53,780 psi | 88% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 51,779 psi | 85% | 2769 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 52,475 psi | 86% | 2867 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 53,824 psi | 88% | 2740 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,011 psi | 87% | 2822 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 54,288 psi | 89% | 2877 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,266 psi | 74% | 2710 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,958 psi | 66% | 2661 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,810 psi | 90% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,011 psi | 87% | 2828 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,056 psi | 89% | 2841 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,460 psi | 86% | 2808 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,896 psi | 88% | 2871 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,839 psi | 90% | 2848 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,633 psi | 83% | 2848 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 50,995 psi | 84% | 2871 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,910 psi | 87% | 2854 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,470 psi | 76% | 2776 fps | 97.3% |
| Bofors RP5 | <<locked>> | 96% | 53,896 psi | 88% | 2871 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 54,984 psi | 90% | 2776 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,893 psi | 82% | 2799 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 53,925 psi | 89% | 2822 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 53,374 psi | 88% | 2782 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 54,418 psi | 89% | 2822 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,243 psi | 87% | 2802 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,287 psi | 87% | 2753 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,530 psi | 81% | 2900 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 54,201 psi | 89% | 2858 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 60% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,968 psi | 87% | 2759 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,098 psi | 87% | 2746 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 52,373 psi | 86% | 2762 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,243 psi | 86% | 2753 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 51,938 psi | 85% | 2851 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 53,417 psi | 88% | 2746 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,998 psi | 90% | 2789 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,300 psi | 84% | 2746 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 53,766 psi | 88% | 2808 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 53,650 psi | 88% | 2894 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,259 psi | 89% | 2808 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,446 psi | 86% | 2871 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 53,127 psi | 87% | 2812 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,462 psi | 89% | 2864 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,492 psi | 62% | 1798 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,447 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 51,953 psi | 85% | 2792 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,056 psi | 89% | 2874 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,792 psi | 82% | 2897 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 52,446 psi | 86% | 2726 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,389 psi | 89% | 2792 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 51,822 psi | 85% | 2799 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 54,984 psi | 90% | 2776 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,417 psi | 88% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,998 psi | 90% | 2789 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,983 psi | 89% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,953 psi | 87% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,866 psi | 87% | 2700 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,839 psi | 90% | 2844 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 52,286 psi | 86% | 2720 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,373 psi | 86% | 2730 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 54,186 psi | 89% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,344 psi | 86% | 2772 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 53,476 psi | 88% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,605 psi | 86% | 2753 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 51,808 psi | 85% | 2753 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 51,605 psi | 85% | 2753 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,447 psi | 88% | 2822 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,693 psi | 88% | 2887 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,895 psi | 87% | 2858 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 51,938 psi | 85% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,099 psi | 89% | 2825 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 51,561 psi | 85% | 2920 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,141 psi | 86% | 2766 fps | 98.7% |
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% | 30,777 psi | 51% | 2339 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 41,901 psi | 69% | 2602 fps | 99.7% |
| Accurate MAGPRO | 90.2 gr | 90% | 45,411 psi | 75% | 2743 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 50,575 psi | 83% | 2690 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,811 psi | 62% | 2533 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 44,208 psi | 73% | 2694 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 42,221 psi | 69% | 2644 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 34,983 psi | 57% | 2536 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,503 psi | 85% | 2713 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,669 psi | 67% | 2615 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,717 psi | 77% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,695 psi | 62% | 2526 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,247 psi | 63% | 2579 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,791 psi | 49% | 2375 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,747 psi | 49% | 2388 fps | 95.5% |
| Alliant Reloder-26 | 81.1 gr | 80% | 32,242 psi | 53% | 2493 fps | 97.5% |
| Bofors RP15 | <<locked>> | 88% | 37,884 psi | 62% | 2569 fps | 95.3% |
| Bofors RP30 | <<locked>> | 96% | 40,393 psi | 66% | 2654 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 38,247 psi | 63% | 2579 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,339 psi | 74% | 2612 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,509 psi | 67% | 2612 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 43,961 psi | 72% | 2651 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 46,659 psi | 77% | 2667 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,135 psi | 72% | 2641 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,427 psi | 76% | 2684 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,145 psi | 63% | 2503 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,811 psi | 62% | 2644 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,163 psi | 71% | 2667 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 45% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,944 psi | 67% | 2543 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,847 psi | 77% | 2641 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,089 psi | 66% | 2552 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,033 psi | 71% | 2585 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 42,250 psi | 69% | 2667 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 44,266 psi | 73% | 2589 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 42,496 psi | 70% | 2575 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 30,197 psi | 50% | 2326 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 40,727 psi | 67% | 2575 fps | 96% |
| Norma MRP | <<locked>> | 82% | 34,780 psi | 57% | 2526 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 41,539 psi | 68% | 2592 fps | 99.6% |
| Ramshot Grand | 87.8 gr | 90% | 41,989 psi | 69% | 2674 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,437 psi | 66% | 2585 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 34,693 psi | 57% | 2490 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 46% | 1608 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,647 psi | 82% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,901 psi | 69% | 2621 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,364 psi | 66% | 2635 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,606 psi | 57% | 2559 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,023 psi | 80% | 2674 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,959 psi | 69% | 2572 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 36,811 psi | 60% | 2510 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,339 psi | 74% | 2612 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,266 psi | 73% | 2589 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 42,496 psi | 70% | 2575 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,589 psi | 83% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,705 psi | 82% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,279 psi | 71% | 2536 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,131 psi | 64% | 2562 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 49,124 psi | 81% | 2671 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,759 psi | 75% | 2618 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 38,203 psi | 63% | 2549 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,867 psi | 57% | 2434 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,978 psi | 77% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,946 psi | 71% | 2592 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 36,999 psi | 61% | 2477 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 42,380 psi | 70% | 2595 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 33,243 psi | 55% | 2444 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 88% | 43,453 psi | 71% | 2700 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 42,888 psi | 70% | 2677 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,134 psi | 69% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,121 psi | 72% | 2654 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,281 psi | 43% | 2365 fps | 98.2% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,320 psi | 65% | 2533 fps | 95.8% |
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 73 powders for .338 Lapua Mag. loaded with the .338 | 225gr | CutEdge ESP Raptor. Winchester StaBALL HD delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,920 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:13.5 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. Ramshot Grand, Accurate MAGPRO, Alliant Reloder-26 rank at the top here: for .338 Lapua Mag. with the .338 | 225gr | CutEdge ESP Raptor 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.