Load Specifications
Load data in caliber .338 Win Mag. with .338 | 250gr | Lehigh Defense Match Solid bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2015 | <<locked>> | 86% | 56,275 psi | 90% | 2385 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,418 psi | 87% | 2415 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,056 psi | 87% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,808 psi | 85% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,983 psi | 87% | 2418 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 37,724 psi | 60% | 2277 fps | 95.9% |
| Accurate 4064 | <<locked>> | 92% | 54,070 psi | 87% | 2451 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2530 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 55,434 psi | 89% | 2487 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 56,289 psi | 90% | 2487 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,331 psi | 87% | 2441 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,013 psi | 88% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,347 psi | 90% | 2533 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,824 psi | 88% | 2595 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,130 psi | 90% | 2503 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,898 psi | 90% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,374 psi | 86% | 2480 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 2539 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,185 psi | 85% | 2572 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,709 psi | 59% | 2306 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,799 psi | 65% | 2444 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,071 psi | 88% | 2503 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 52,910 psi | 85% | 2474 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,272 psi | 85% | 2448 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,113 psi | 85% | 2385 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,330 psi | 86% | 2467 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,579 psi | 89% | 2559 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,274 psi | 89% | 2431 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,072 psi | 90% | 2454 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,099 psi | 87% | 2487 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 98% | 53,476 psi | 86% | 2536 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 96% | 54,331 psi | 87% | 2497 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 88% | 55,999 psi | 90% | 2497 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,312 psi | 77% | 2428 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,071 psi | 88% | 2526 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,215 psi | 87% | 2572 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,186 psi | 56% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,824 psi | 86% | 2454 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,927 psi | 90% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,695 psi | 89% | 2467 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,014 psi | 90% | 2457 fps | 98.5% |
| IMR 4198 | <<locked>> | 82% | 56,246 psi | 90% | 2346 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2474 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,434 psi | 89% | 2477 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2477 fps | 99.7% |
| IMR 4895 | <<locked>> | 90% | 54,723 psi | 88% | 2507 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,331 psi | 87% | 2441 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,215 psi | 87% | 2425 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,810 psi | 88% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,100 psi | 88% | 2421 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,477 psi | 89% | 2464 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,375 psi | 87% | 2470 fps | 99.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2503 fps | 98.7% |
| Norma 201 | <<locked>> | 88% | 53,882 psi | 86% | 2434 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,592 psi | 88% | 2434 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,927 psi | 90% | 2513 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 54,056 psi | 87% | 2516 fps | 96.7% |
| Norma URPᴾ | <<locked>> | 100% | 53,142 psi | 85% | 2523 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 52,779 psi | 85% | 2490 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2523 fps | 98.8% |
| Ramshot TAC | <<locked>> | 86% | 54,621 psi | 88% | 2464 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,172 psi | 87% | 2477 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,492 psi | 89% | 2448 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 57% | 1503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,983 psi | 87% | 2421 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,491 psi | 87% | 2470 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,592 psi | 86% | 2539 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,982 psi | 85% | 2569 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,301 psi | 85% | 2552 fps | 99.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,592 psi | 86% | 2582 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 54,679 psi | 88% | 2411 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,302 psi | 87% | 2431 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,347 psi | 90% | 2510 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,272 psi | 85% | 2448 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,375 psi | 87% | 2470 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,810 psi | 88% | 2464 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,477 psi | 89% | 2464 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2503 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,810 psi | 88% | 2523 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 52,750 psi | 85% | 2441 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,693 psi | 86% | 2464 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,927 psi | 90% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,811 psi | 89% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,056 psi | 88% | 2431 fps | 98.4% |
| Somchem S321 | <<locked>> | 84% | 55,550 psi | 89% | 2470 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,955 psi | 88% | 2379 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,202 psi | 90% | 2480 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 53,388 psi | 86% | 2467 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,355 psi | 76% | 2477 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,106 psi | 71% | 2372 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 84% | 55,709 psi | 89% | 2343 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,173 psi | 90% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,056 psi | 87% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,114 psi | 88% | 2418 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,810 psi | 88% | 2444 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2520 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 86% | 54,868 psi | 88% | 2441 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,214 psi | 85% | 2418 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,723 psi | 88% | 2526 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,711 psi | 64% | 2369 fps | 98.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,188 psi | 90% | 2503 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,737 psi | 88% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,476 psi | 86% | 2536 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,634 psi | 52% | 2303 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,592 psi | 86% | 2470 fps | 100% |
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 2015 | <<locked>> | 80% | 46,659 psi | 75% | 2270 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,836 psi | 82% | 2369 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,899 psi | 62% | 2205 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,919 psi | 74% | 2336 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,324 psi | 71% | 2277 fps | 95.5% |
| Accurate 3100 | <<locked>> | 98% | 35,201 psi | 56% | 2228 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,811 psi | 59% | 2201 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,560 psi | 49% | 2139 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,917 psi | 69% | 2303 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 36,564 psi | 59% | 2178 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,063 psi | 72% | 2310 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,107 psi | 72% | 2293 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,794 psi | 85% | 2487 fps | 100% |
| Alliant Power Pro 2000-MR | 51.7 gr | 80% | 38,928 psi | 62% | 2336 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,911 psi | 58% | 2195 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,692 psi | 84% | 2349 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,653 psi | 62% | 2247 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,647 psi | 51% | 2159 fps | 95.7% |
| Alliant Reloder-17 | 50.9 gr | 80% | 30,893 psi | 50% | 2169 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,035 psi | 43% | 2073 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,054 psi | 53% | 2277 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,061 psi | 67% | 2310 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 35,201 psi | 56% | 2195 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 41,597 psi | 67% | 2267 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,978 psi | 75% | 2300 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,656 psi | 70% | 2333 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,327 psi | 77% | 2457 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 80% | 51,822 psi | 83% | 2388 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,388 psi | 84% | 2411 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,361 psi | 58% | 2201 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 38,392 psi | 62% | 2290 fps | 95% |
| Hodgdon H4350 | <<locked>> | 90% | 45,049 psi | 72% | 2359 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,308 psi | 69% | 2313 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,050 psi | 43% | 2021 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,320 psi | 63% | 2293 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 92% | 43,555 psi | 70% | 2405 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,107 psi | 42% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,800 psi | 67% | 2277 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 42,989 psi | 69% | 2306 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,363 psi | 62% | 2205 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,901 psi | 66% | 2224 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 53,026 psi | 85% | 2310 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 41,640 psi | 67% | 2290 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 40,770 psi | 65% | 2251 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 29,965 psi | 48% | 2110 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,581 psi | 63% | 2277 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 45,063 psi | 72% | 2310 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 50,589 psi | 81% | 2379 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,756 psi | 67% | 2283 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,236 psi | 69% | 2251 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 38,101 psi | 61% | 2208 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 35,273 psi | 57% | 2156 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 37,898 psi | 61% | 2228 fps | 95% |
| Norma 201 | <<locked>> | 80% | 42,047 psi | 67% | 2264 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 42,264 psi | 68% | 2267 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,000 psi | 61% | 2241 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 47,224 psi | 76% | 2418 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 31,444 psi | 50% | 2149 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,550 psi | 60% | 2254 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 37,536 psi | 60% | 2280 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 44,875 psi | 72% | 2320 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,266 psi | 71% | 2336 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,675 psi | 78% | 2356 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,556 psi | 43% | 1342 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,691 psi | 81% | 2379 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 36,912 psi | 59% | 2188 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,524 psi | 65% | 2339 fps | 98.8% |
| ReloadSwiss RS 60 | 50.9 gr | 80% | 32,967 psi | 53% | 2228 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,735 psi | 52% | 2205 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,491 psi | 57% | 2264 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 45,788 psi | 73% | 2293 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,958 psi | 64% | 2221 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 33,228 psi | 53% | 2149 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 41,597 psi | 67% | 2267 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,273 psi | 57% | 2156 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,756 psi | 67% | 2283 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,101 psi | 61% | 2208 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 37,898 psi | 61% | 2228 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,345 psi | 55% | 2195 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,873 psi | 69% | 2293 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,481 psi | 67% | 2280 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,613 psi | 70% | 2218 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,129 psi | 58% | 2106 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 39,450 psi | 63% | 2201 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 48,559 psi | 78% | 2379 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,134 psi | 69% | 2221 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,830 psi | 69% | 2293 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 34,258 psi | 55% | 2156 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 24,511 psi | 39% | 2005 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 41,292 psi | 66% | 2326 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,356 psi | 79% | 2267 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,976 psi | 71% | 2211 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,436 psi | 63% | 2205 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,089 psi | 64% | 2215 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,489 psi | 52% | 2100 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 30,763 psi | 49% | 2103 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 45,005 psi | 72% | 2306 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,522 psi | 62% | 2208 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,155 psi | 52% | 2149 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 28,674 psi | 46% | 2136 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,819 psi | 46% | 2037 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 44,657 psi | 72% | 2349 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 38,392 psi | 62% | 2290 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 26,977 psi | 43% | 2136 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,698 psi | 65% | 2283 fps | 99.5% |
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 122 powders for .338 Win Mag. loaded with the .338 | 250gr | Lehigh Defense Match Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,595 fps. Accurate 3100 gives the best case fill at 100 %, and 122 of the 122 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .338 Win Mag. with the .338 | 250gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.