Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 250gr | Rhino Solid Shank bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.
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>> | 92% | 53,693 psi | 88% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,911 psi | 90% | 2674 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 52,185 psi | 86% | 2736 fps | 98% |
| ADI AR 2209 | <<locked>> | 88% | 52,156 psi | 86% | 2680 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 92% | 53,461 psi | 88% | 2740 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,314 psi | 84% | 2700 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,948 psi | 75% | 2667 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,344 psi | 86% | 2674 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,330 psi | 86% | 2674 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 51,750 psi | 85% | 2671 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 92% | 53,621 psi | 88% | 2733 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,926 psi | 90% | 2707 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,157 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 51,242 psi | 84% | 2733 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,984 psi | 90% | 2700 fps | 96.9% |
| Bofors RP15 | <<locked>> | 94% | 52,852 psi | 87% | 2723 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,012 psi | 89% | 2769 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 53,621 psi | 88% | 2733 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 53,621 psi | 88% | 2625 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 52,910 psi | 87% | 2726 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 52,779 psi | 87% | 2671 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,287 psi | 87% | 2677 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,330 psi | 86% | 2661 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 52,533 psi | 86% | 2605 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,258 psi | 87% | 2838 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,011 psi | 87% | 2707 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 61% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 51,880 psi | 85% | 2615 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,940 psi | 90% | 2644 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 51,866 psi | 85% | 2618 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,418 psi | 89% | 2664 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 55,042 psi | 90% | 2772 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,452 psi | 68% | 2575 fps | 97% |
| Lovex S065 | <<locked>> | 82% | 52,344 psi | 86% | 2595 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,809 psi | 88% | 2641 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,998 psi | 90% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,446 psi | 86% | 2661 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 41,611 psi | 68% | 2598 fps | 99% |
| Norma MRP | <<locked>> | 90% | 53,461 psi | 88% | 2753 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,316 psi | 88% | 2657 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 51,967 psi | 85% | 2733 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 52,170 psi | 86% | 2664 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,143 psi | 89% | 2730 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,087 psi | 63% | 1719 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,839 psi | 90% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,084 psi | 87% | 2720 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,766 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,489 psi | 86% | 2785 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 88% | 53,200 psi | 87% | 2651 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 54,810 psi | 90% | 2713 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 53,621 psi | 88% | 2625 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,344 psi | 86% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,809 psi | 88% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,752 psi | 90% | 2602 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,389 psi | 89% | 2707 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 54,592 psi | 90% | 2644 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 53,969 psi | 89% | 2661 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 51,721 psi | 85% | 2635 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 84% | 54,984 psi | 90% | 2648 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,737 psi | 90% | 2667 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,331 psi | 89% | 2654 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 53,722 psi | 88% | 2684 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,272 psi | 87% | 2749 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 53,156 psi | 87% | 2733 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,621 psi | 88% | 2789 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,375 psi | 89% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 52,968 psi | 87% | 2674 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 52,881 psi | 87% | 2785 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,969 psi | 90% | 2680 fps | 99.7% |
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% | 35,940 psi | 59% | 2343 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 47,964 psi | 79% | 2572 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 42,395 psi | 70% | 2559 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 39,943 psi | 66% | 2461 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 82% | 38,189 psi | 63% | 2451 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 90% | 36,840 psi | 60% | 2421 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 88% | 31,140 psi | 51% | 2329 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,321 psi | 66% | 2461 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,890 psi | 75% | 2575 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,943 psi | 66% | 2457 fps | 97.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,781 psi | 59% | 2405 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,505 psi | 57% | 2369 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,023 psi | 49% | 2290 fps | 97.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,942 psi | 62% | 2503 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 48,660 psi | 80% | 2595 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 35,737 psi | 59% | 2402 fps | 95.9% |
| Bofors RP30 | <<locked>> | 88% | 35,853 psi | 59% | 2434 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 35,781 psi | 59% | 2405 fps | 96.1% |
| Bofors RP7 | <<locked>> | 80% | 50,314 psi | 83% | 2572 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,143 psi | 58% | 2382 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 49,516 psi | 81% | 2621 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 82% | 40,727 psi | 67% | 2457 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,016 psi | 66% | 2444 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,308 psi | 71% | 2467 fps | 100% |
| Hodgdon Retumbo | 80.5 gr | 84% | 33,460 psi | 55% | 2421 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 49,284 psi | 81% | 2648 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,963 psi | 46% | 1499 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,716 psi | 75% | 2513 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,634 psi | 85% | 2595 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,513 psi | 75% | 2520 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,726 psi | 65% | 2405 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 84% | 39,349 psi | 65% | 2490 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,390 psi | 60% | 2467 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,153 psi | 81% | 2546 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,630 psi | 78% | 2543 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,067 psi | 51% | 2231 fps | 97% |
| Norma 204 | <<locked>> | 80% | 45,876 psi | 75% | 2552 fps | 98.5% |
| Norma 217 | <<locked>> | 92% | 31,879 psi | 52% | 2379 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 37,478 psi | 62% | 2467 fps | 98% |
| Norma URP | <<locked>> | 80% | 46,934 psi | 77% | 2559 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,274 psi | 60% | 2434 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 45,745 psi | 75% | 2559 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 32,314 psi | 53% | 2323 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,616 psi | 47% | 1535 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,022 psi | 79% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,079 psi | 76% | 2612 fps | 100% |
| ReloadSwiss RS 76 | 84.1 gr | 82% | 30,327 psi | 50% | 2336 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 41,858 psi | 69% | 2595 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 41,205 psi | 68% | 2441 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 80% | 39,334 psi | 65% | 2441 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 80% | 50,314 psi | 83% | 2572 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,153 psi | 81% | 2546 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,630 psi | 78% | 2543 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,211 psi | 79% | 2503 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,001 psi | 64% | 2438 fps | 97.2% |
| Somchem S361 | <<locked>> | 80% | 41,959 psi | 69% | 2431 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 44,092 psi | 72% | 2516 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,856 psi | 65% | 2425 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 80% | 48,356 psi | 79% | 2552 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,606 psi | 57% | 2310 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 80% | 47,718 psi | 78% | 2559 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,725 psi | 64% | 2438 fps | 99.9% |
| Vihtavuori N560 | 81.5 gr | 82% | 40,350 psi | 66% | 2516 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 86% | 37,884 psi | 62% | 2451 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 43,337 psi | 71% | 2608 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,384 psi | 78% | 2513 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,690 psi | 82% | 2625 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,748 psi | 50% | 2395 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,376 psi | 60% | 2356 fps | 96.2% |
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 69 powders for .338 Lapua Mag. loaded with the .338 | 250gr | Rhino Solid Shank. Hodgdon Retumbo delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,838 fps. ADI AR 2217 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for .338 Lapua Mag. with the .338 | 250gr | Rhino Solid Shank 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.