Load Specifications
Load data in caliber .338 Lapua Mag. with .338 | 276gr | Peregrine VLR-5 bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand 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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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 3100 | <<locked>> | 94% | 53,838 psi | 88% | 2513 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 51,895 psi | 85% | 2493 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,649 psi | 86% | 2608 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 90% | 52,910 psi | 87% | 2549 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 54,099 psi | 89% | 2605 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,269 psi | 79% | 2516 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,815 psi | 70% | 2484 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,069 psi | 87% | 2546 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,243 psi | 87% | 2546 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,983 psi | 89% | 2552 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,446 psi | 86% | 2539 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,027 psi | 89% | 2602 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 51,735 psi | 85% | 2526 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,433 psi | 89% | 2628 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,503 psi | 85% | 2602 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,562 psi | 86% | 2523 fps | 96.8% |
| Bofors RP15 | <<locked>> | 96% | 52,982 psi | 87% | 2585 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,386 psi | 83% | 2582 fps | 99.3% |
| Bofors RP5 | <<locked>> | 94% | 54,027 psi | 89% | 2602 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 54,476 psi | 89% | 2493 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,359 psi | 88% | 2595 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 53,664 psi | 88% | 2543 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 52,953 psi | 87% | 2503 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 54,128 psi | 89% | 2549 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,069 psi | 87% | 2536 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,243 psi | 87% | 2474 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,272 psi | 87% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,940 psi | 89% | 2579 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,101 psi | 61% | 1562 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,794 psi | 87% | 2487 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,692 psi | 87% | 2470 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 52,431 psi | 86% | 2487 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,909 psi | 85% | 2487 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 52,054 psi | 85% | 2589 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,363 psi | 63% | 2395 fps | 96.7% |
| Lovex S065 | <<locked>> | 84% | 53,156 psi | 87% | 2467 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,694 psi | 90% | 2510 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,882 psi | 90% | 2526 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,476 psi | 88% | 2536 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 38,450 psi | 63% | 2421 fps | 98.8% |
| Norma MRP | <<locked>> | 92% | 53,679 psi | 88% | 2618 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,172 psi | 89% | 2526 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,388 psi | 86% | 2602 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 52,968 psi | 87% | 2536 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,462 psi | 89% | 2595 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,797 psi | 62% | 1598 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,880 psi | 85% | 2516 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,983 psi | 89% | 2592 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,824 psi | 88% | 2694 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,457 psi | 80% | 2592 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 90% | 54,128 psi | 89% | 2523 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 51,822 psi | 85% | 2530 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,476 psi | 89% | 2493 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,156 psi | 87% | 2467 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,694 psi | 90% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,228 psi | 86% | 2425 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,926 psi | 90% | 2575 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 51,909 psi | 85% | 2467 fps | 98.5% |
| Somchem S365 | <<locked>> | 88% | 54,462 psi | 89% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,156 psi | 86% | 2503 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,200 psi | 87% | 2415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,460 psi | 86% | 2474 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 51,779 psi | 85% | 2487 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 55,027 psi | 90% | 2526 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,853 psi | 88% | 2546 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,606 psi | 88% | 2618 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 98% | 53,142 psi | 87% | 2598 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,951 psi | 82% | 2598 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,576 psi | 85% | 2434 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,867 psi | 88% | 2546 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,518 psi | 86% | 2644 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,011 psi | 85% | 2503 fps | 99.6% |
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% | 33,315 psi | 55% | 2175 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 45,063 psi | 74% | 2395 fps | 100% |
| Accurate MAGPRO | 76.5 gr | 84% | 39,537 psi | 65% | 2382 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 37,826 psi | 62% | 2293 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 82% | 35,940 psi | 59% | 2283 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 92% | 36,999 psi | 61% | 2306 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 88% | 28,993 psi | 48% | 2165 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,072 psi | 63% | 2293 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,482 psi | 71% | 2402 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,314 psi | 83% | 2503 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,724 psi | 62% | 2290 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,504 psi | 55% | 2238 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,169 psi | 53% | 2205 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,036 psi | 46% | 2129 fps | 97.1% |
| Alliant Reloder-26 | 73.7 gr | 80% | 35,157 psi | 58% | 2329 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 46,456 psi | 76% | 2421 fps | 95.2% |
| Bofors RP15 | <<locked>> | 82% | 33,373 psi | 55% | 2234 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 33,315 psi | 55% | 2264 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 33,504 psi | 55% | 2238 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 48,095 psi | 79% | 2402 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 88% | 35,273 psi | 58% | 2274 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 46,963 psi | 77% | 2444 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 49,690 psi | 82% | 2457 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 38,479 psi | 63% | 2290 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 82% | 37,724 psi | 62% | 2277 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,973 psi | 67% | 2300 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 31,270 psi | 51% | 2251 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 46,514 psi | 76% | 2470 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 46% | 1391 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,627 psi | 72% | 2346 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,516 psi | 81% | 2421 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 43,047 psi | 71% | 2349 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 37,797 psi | 62% | 2244 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 84% | 36,999 psi | 61% | 2320 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,853 psi | 59% | 2343 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 46,847 psi | 77% | 2375 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,237 psi | 74% | 2369 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 28,645 psi | 47% | 2067 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 43,555 psi | 72% | 2382 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 29,312 psi | 48% | 2205 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 34,983 psi | 57% | 2297 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 44,498 psi | 73% | 2388 fps | 100% |
| Ramshot Grand | 74.5 gr | 84% | 36,521 psi | 60% | 2323 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 43,352 psi | 71% | 2388 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 29,994 psi | 49% | 2156 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,268 psi | 46% | 1424 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,121 psi | 74% | 2418 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,439 psi | 71% | 2434 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,066 psi | 49% | 2224 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 38,725 psi | 64% | 2415 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 39,218 psi | 64% | 2277 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,014 psi | 61% | 2277 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 48,095 psi | 79% | 2402 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,847 psi | 77% | 2375 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,237 psi | 74% | 2369 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,890 psi | 75% | 2333 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,695 psi | 60% | 2270 fps | 97.1% |
| Somchem S361 | <<locked>> | 80% | 39,668 psi | 65% | 2267 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,466 psi | 68% | 2346 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,536 psi | 62% | 2260 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 49,893 psi | 82% | 2372 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,861 psi | 75% | 2379 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,401 psi | 53% | 2149 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 45,136 psi | 74% | 2385 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,143 psi | 59% | 2270 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 37,855 psi | 62% | 2346 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 88% | 37,681 psi | 62% | 2336 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 40,321 psi | 66% | 2428 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,034 psi | 74% | 2346 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,152 psi | 77% | 2448 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,500 psi | 47% | 2224 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,200 psi | 56% | 2195 fps | 96.1% |
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 72 powders for .338 Lapua Mag. loaded with the .338 | 276gr | Peregrine VLR-5. Hodgdon Retumbo delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,697 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 276.0 gr projectile in 0.338" calls for a 1:10.0 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for .338 Lapua Mag. with the .338 | 276gr | Peregrine VLR-5 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.