Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 225gr | Peregrine VLR-4 bullet and 75 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 ADI AR 2213.
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% | 52,112 psi | 86% | 2756 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,998 psi | 89% | 2799 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,636 psi | 90% | 2900 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 52,707 psi | 87% | 2717 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,071 psi | 90% | 2851 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 52,779 psi | 87% | 2848 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,711 psi | 64% | 2628 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,650 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 51,648 psi | 85% | 2805 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,533 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,563 psi | 90% | 2838 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,286 psi | 86% | 2841 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,113 psi | 87% | 2822 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,994 psi | 80% | 2818 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,200 psi | 87% | 2907 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,766 psi | 90% | 2881 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 54,433 psi | 89% | 2756 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2743 fps | 96.7% |
| Bofors RP5 | <<locked>> | 96% | 52,286 psi | 86% | 2841 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 53,809 psi | 88% | 2749 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,399 psi | 79% | 2766 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 82% | 54,679 psi | 90% | 2776 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,533 psi | 86% | 2799 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 52,011 psi | 85% | 2756 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 52,852 psi | 87% | 2789 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,692 psi | 85% | 2772 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,793 psi | 85% | 2730 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,979 psi | 79% | 2867 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 52,562 psi | 86% | 2828 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 60% | 1745 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 51,706 psi | 85% | 2733 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,127 psi | 86% | 2726 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,578 psi | 90% | 2792 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,273 psi | 89% | 2779 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 54,128 psi | 89% | 2881 fps | 98.1% |
| Lovex S065 | <<locked>> | 86% | 52,243 psi | 86% | 2720 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,650 psi | 88% | 2766 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,617 psi | 81% | 2717 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,330 psi | 86% | 2782 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 51,982 psi | 85% | 2864 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 52,794 psi | 87% | 2782 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,592 psi | 90% | 2900 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 51,634 psi | 85% | 2785 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,576 psi | 86% | 2831 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,347 psi | 61% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,563 psi | 90% | 2762 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,822 psi | 85% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,954 psi | 89% | 2818 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,518 psi | 86% | 2848 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,211 psi | 79% | 2861 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,723 psi | 90% | 2753 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,142 psi | 87% | 2769 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 53,795 psi | 88% | 2825 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 53,809 psi | 88% | 2749 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,243 psi | 86% | 2720 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,650 psi | 88% | 2766 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,721 psi | 87% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,982 psi | 85% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,605 psi | 85% | 2674 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,345 psi | 88% | 2818 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,476 psi | 89% | 2746 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,650 psi | 90% | 2759 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 52,663 psi | 86% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,302 psi | 89% | 2799 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 52,417 psi | 86% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,766 psi | 90% | 2779 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,911 psi | 89% | 2779 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 53,751 psi | 88% | 2782 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,851 psi | 85% | 2795 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,069 psi | 85% | 2858 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,227 psi | 84% | 2828 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,259 psi | 89% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,707 psi | 87% | 2799 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,432 psi | 88% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,578 psi | 90% | 2795 fps | 98.9% |
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>> | 82% | 32,097 psi | 53% | 2372 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 40,741 psi | 67% | 2575 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 47,311 psi | 78% | 2776 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 49,632 psi | 81% | 2671 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,436 psi | 65% | 2566 fps | 95.6% |
| ADI AR 2213 | 83.7 gr | 90% | 42,975 psi | 71% | 2664 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 33,968 psi | 56% | 2507 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,343 psi | 83% | 2690 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,537 psi | 65% | 2589 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,368 psi | 74% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,262 psi | 64% | 2559 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,072 psi | 61% | 2549 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,921 psi | 47% | 2349 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,835 psi | 51% | 2418 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,140 psi | 51% | 2464 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 39,233 psi | 64% | 2598 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 50,821 psi | 83% | 2703 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,872 psi | 69% | 2684 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 37,072 psi | 61% | 2549 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,454 psi | 73% | 2589 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 42,163 psi | 69% | 2641 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 51,111 psi | 84% | 2720 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,772 psi | 70% | 2625 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,643 psi | 75% | 2644 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 46,137 psi | 76% | 2674 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,092 psi | 74% | 2654 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,057 psi | 61% | 2477 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,695 psi | 60% | 2612 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,916 psi | 69% | 2641 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 45% | 1562 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,987 psi | 66% | 2520 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,847 psi | 75% | 2618 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 39,015 psi | 64% | 2526 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,788 psi | 74% | 2615 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 43,947 psi | 72% | 2697 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 43,250 psi | 71% | 2566 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 41,466 psi | 68% | 2552 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 31,241 psi | 51% | 2352 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 39,653 psi | 65% | 2546 fps | 95.5% |
| Norma MRP | 78.7 gr | 82% | 33,663 psi | 55% | 2497 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 40,422 psi | 66% | 2569 fps | 99.4% |
| Ramshot Grand | <<locked>> | 90% | 40,741 psi | 67% | 2644 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,320 psi | 65% | 2562 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 36,129 psi | 59% | 2520 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,920 psi | 46% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,097 psi | 84% | 2707 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,225 psi | 79% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,683 psi | 67% | 2595 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,291 psi | 65% | 2608 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,998 psi | 59% | 2592 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 80% | 47,834 psi | 79% | 2651 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,642 psi | 72% | 2602 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 38,377 psi | 63% | 2539 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,454 psi | 73% | 2589 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,250 psi | 71% | 2566 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 41,466 psi | 68% | 2552 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,284 psi | 81% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,747 psi | 80% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,351 psi | 70% | 2516 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,029 psi | 62% | 2533 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 47,964 psi | 79% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,585 psi | 73% | 2592 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,028 psi | 61% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,390 psi | 60% | 2470 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,876 psi | 75% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,858 psi | 69% | 2569 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 35,897 psi | 59% | 2451 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 41,234 psi | 68% | 2569 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,300 psi | 53% | 2425 fps | 98.2% |
| Vihtavuori N560 | 86.4 gr | 90% | 45,136 psi | 74% | 2733 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 96% | 44,483 psi | 73% | 2707 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,944 psi | 67% | 2536 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,931 psi | 70% | 2628 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,454 psi | 42% | 2333 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,174 psi | 63% | 2507 fps | 95.2% |
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 82 powders for .338 Lapua Mag. loaded with the .338 | 225gr | Peregrine VLR-4. Winchester StaBALL HD delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,745 fps to 2,946 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 225.0 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-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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for .338 Lapua Mag. with the .338 | 225gr | Peregrine VLR-4 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, ReloadSwiss RS 80 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.