Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 265gr | Nosler AccuBond Long Range bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Hodgdon Retumbo and Winchester StaBALL HD.
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% | 52,417 psi | 86% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 53,795 psi | 88% | 2572 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 54,592 psi | 90% | 2687 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 54,447 psi | 89% | 2628 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 52,141 psi | 86% | 2631 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,879 psi | 82% | 2595 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,570 psi | 73% | 2566 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,563 psi | 90% | 2618 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,954 psi | 89% | 2618 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 52,286 psi | 86% | 2631 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 53,403 psi | 88% | 2602 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 52,794 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 53,490 psi | 88% | 2684 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,867 psi | 88% | 2598 fps | 96.9% |
| Bofors RP15 | <<locked>> | 96% | 54,824 psi | 90% | 2667 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,272 psi | 86% | 2661 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 52,286 psi | 86% | 2631 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 52,576 psi | 86% | 2523 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 51,474 psi | 85% | 2621 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 51,837 psi | 85% | 2572 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 54,404 psi | 89% | 2582 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 52,069 psi | 85% | 2575 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,636 psi | 90% | 2615 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,013 psi | 90% | 2549 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 51,634 psi | 85% | 2726 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 51,663 psi | 85% | 2602 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 61% | 1608 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,099 psi | 89% | 2559 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,969 psi | 89% | 2543 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 54,012 psi | 89% | 2562 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 53,330 psi | 88% | 2562 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 53,606 psi | 88% | 2664 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,190 psi | 66% | 2477 fps | 97% |
| Lovex S065 | <<locked>> | 84% | 54,607 psi | 90% | 2539 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,808 psi | 87% | 2539 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 53,592 psi | 88% | 2562 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,839 psi | 90% | 2608 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 40,335 psi | 66% | 2503 fps | 99% |
| Norma MRP | <<locked>> | 90% | 51,967 psi | 85% | 2648 fps | 100% |
| Norma URP | <<locked>> | 84% | 52,214 psi | 86% | 2556 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,360 psi | 89% | 2687 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 54,462 psi | 89% | 2608 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 52,475 psi | 86% | 2621 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 62% | 1647 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 53,577 psi | 88% | 2592 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 51,721 psi | 85% | 2615 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 51,967 psi | 85% | 2720 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,749 psi | 83% | 2680 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 88% | 52,170 psi | 86% | 2546 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 53,505 psi | 88% | 2605 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 52,576 psi | 86% | 2523 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,607 psi | 90% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,808 psi | 87% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,722 psi | 88% | 2500 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 53,084 psi | 87% | 2605 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 53,374 psi | 88% | 2543 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 52,605 psi | 86% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,027 psi | 89% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 54,708 psi | 90% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,012 psi | 89% | 2549 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 53,548 psi | 88% | 2566 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 53,142 psi | 87% | 2552 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 52,257 psi | 86% | 2579 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 51,866 psi | 85% | 2644 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 51,721 psi | 85% | 2628 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,953 psi | 85% | 2680 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 53,258 psi | 87% | 2510 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 52,025 psi | 85% | 2572 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,810 psi | 90% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 53,780 psi | 88% | 2579 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% | 35,128 psi | 58% | 2254 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 46,963 psi | 77% | 2474 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 41,234 psi | 68% | 2461 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 39,088 psi | 64% | 2365 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 82% | 37,347 psi | 61% | 2359 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 90% | 35,911 psi | 59% | 2326 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 88% | 30,313 psi | 50% | 2241 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,875 psi | 74% | 2477 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,131 psi | 64% | 2362 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,983 psi | 57% | 2313 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,634 psi | 55% | 2277 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,312 psi | 48% | 2201 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,796 psi | 60% | 2408 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 47,747 psi | 78% | 2497 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 32,561 psi | 53% | 2257 fps | 95% |
| Bofors RP30 | <<locked>> | 88% | 34,867 psi | 57% | 2343 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 34,983 psi | 57% | 2313 fps | 96.2% |
| Bofors RP7 | <<locked>> | 80% | 49,472 psi | 81% | 2474 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 34,360 psi | 56% | 2293 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 48,573 psi | 80% | 2520 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 51,039 psi | 84% | 2530 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 39,726 psi | 65% | 2362 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 82% | 39,146 psi | 64% | 2349 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,496 psi | 70% | 2372 fps | 100% |
| Hodgdon Retumbo | 75.3 gr | 84% | 32,634 psi | 54% | 2329 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 47,964 psi | 79% | 2546 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,862 psi | 46% | 1434 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,875 psi | 74% | 2418 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,691 psi | 83% | 2493 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 44,570 psi | 73% | 2425 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 38,943 psi | 64% | 2313 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 84% | 38,406 psi | 63% | 2395 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 96% | 35,302 psi | 58% | 2372 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 48,298 psi | 79% | 2448 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 46,688 psi | 77% | 2444 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 30,284 psi | 50% | 2146 fps | 97.1% |
| Norma 204 | <<locked>> | 80% | 44,860 psi | 74% | 2454 fps | 98.5% |
| Norma 217 | <<locked>> | 92% | 30,922 psi | 51% | 2287 fps | 95.8% |
| Norma MRP | 74.4 gr | 80% | 36,564 psi | 60% | 2375 fps | 98.1% |
| Norma URP | <<locked>> | 80% | 45,919 psi | 75% | 2461 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 35,404 psi | 58% | 2343 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 44,730 psi | 73% | 2461 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 31,517 psi | 52% | 2234 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,558 psi | 47% | 1470 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,818 psi | 77% | 2493 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,889 psi | 74% | 2510 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 29,457 psi | 48% | 2244 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 40,611 psi | 67% | 2497 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 40,480 psi | 66% | 2349 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 80% | 38,406 psi | 63% | 2349 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 49,472 psi | 81% | 2474 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,298 psi | 79% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 46,688 psi | 77% | 2444 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,239 psi | 78% | 2405 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,087 psi | 63% | 2346 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 41,002 psi | 67% | 2336 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 43,018 psi | 71% | 2421 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,088 psi | 64% | 2336 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 80% | 51,300 psi | 84% | 2444 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,384 psi | 78% | 2454 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,823 psi | 56% | 2221 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 80% | 46,615 psi | 77% | 2457 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,855 psi | 62% | 2346 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 39,450 psi | 65% | 2421 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 86% | 36,883 psi | 61% | 2359 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 42,105 psi | 69% | 2510 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,325 psi | 76% | 2418 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,573 psi | 80% | 2520 fps | 99.9% |
| Winchester StaBALL HD | 73.6 gr | 80% | 29,921 psi | 49% | 2306 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,578 psi | 58% | 2267 fps | 96.3% |
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 75 powders for .338 Lapua Mag. loaded with the .338 | 265gr | Nosler AccuBond Long Range. Hodgdon Retumbo delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,608 fps to 2,726 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 265.0 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 2218, ADI AR 2225 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, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for .338 Lapua Mag. with the .338 | 265gr | Nosler AccuBond Long Range they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-33, IMR 7977 Enduron 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.