Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:250 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Win Mag. load data
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:15.0
Load data in caliber .338 Win Mag. with .338 | 250gr | Rhino Solid Shank bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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>> | 82% | 55,506 psi | 89% | 2405 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,824 psi | 88% | 2438 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,999 psi | 90% | 2493 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,113 psi | 85% | 2448 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,034 psi | 72% | 2425 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 54,868 psi | 88% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,563 psi | 87% | 2572 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 54,752 psi | 88% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,593 psi | 89% | 2513 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,518 psi | 84% | 2556 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,476 psi | 86% | 2461 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,781 psi | 88% | 2431 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,389 psi | 87% | 2625 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,927 psi | 90% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,011 psi | 85% | 2510 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,724 psi | 89% | 2625 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,301 psi | 85% | 2605 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,517 psi | 83% | 2549 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,150 psi | 72% | 2490 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,554 psi | 68% | 2448 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,478 psi | 60% | 2365 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,790 psi | 77% | 2605 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,433 psi | 87% | 2530 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 53,142 psi | 85% | 2503 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,150 psi | 72% | 2490 fps | 96% |
| Bofors RP7 | <<locked>> | 94% | 56,333 psi | 90% | 2530 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,114 psi | 88% | 2444 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,953 psi | 85% | 2490 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,722 psi | 86% | 2516 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 53,534 psi | 86% | 2572 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 54,128 psi | 87% | 2536 fps | 98% |
| Hodgdon H4895 | <<locked>> | 84% | 55,317 psi | 89% | 2520 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,492 psi | 89% | 2552 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,911 psi | 88% | 2552 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,679 psi | 86% | 2605 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 58% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,289 psi | 90% | 2520 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,651 psi | 89% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,129 psi | 88% | 2497 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,882 psi | 88% | 2484 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 53,447 psi | 86% | 2513 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,781 psi | 88% | 2513 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 54,955 psi | 88% | 2566 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,346 psi | 87% | 2533 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,476 psi | 86% | 2461 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,665 psi | 88% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,911 psi | 86% | 2441 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,274 psi | 89% | 2493 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,375 psi | 87% | 2507 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 55,317 psi | 89% | 2543 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,536 psi | 60% | 2297 fps | 96.6% |
| Norma 201 | <<locked>> | 84% | 53,359 psi | 86% | 2461 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,172 psi | 87% | 2461 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,767 psi | 89% | 2543 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,737 psi | 86% | 2556 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 47,587 psi | 76% | 2566 fps | 98% |
| Norma URP | <<locked>> | 96% | 53,476 psi | 86% | 2559 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 56,260 psi | 90% | 2569 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,724 psi | 89% | 2608 fps | 99.6% |
| Ramshot TAC | <<locked>> | 82% | 53,476 psi | 86% | 2487 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,359 psi | 86% | 2500 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,622 psi | 59% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,896 psi | 86% | 2503 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,505 psi | 86% | 2569 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,040 psi | 85% | 2602 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,186 psi | 87% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,301 psi | 85% | 2621 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 54,549 psi | 87% | 2438 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,969 psi | 87% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,968 psi | 85% | 2497 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,491 psi | 87% | 2533 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,430 psi | 81% | 2533 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,333 psi | 90% | 2530 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,375 psi | 87% | 2507 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,665 psi | 88% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,274 psi | 89% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,317 psi | 89% | 2543 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,737 psi | 88% | 2556 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,840 psi | 90% | 2516 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,011 psi | 85% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,752 psi | 88% | 2398 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,071 psi | 88% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,375 psi | 87% | 2464 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,951 psi | 80% | 2526 fps | 97.1% |
| Somchem S335 | <<locked>> | 84% | 54,114 psi | 87% | 2398 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,492 psi | 89% | 2507 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,388 psi | 86% | 2497 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 56,275 psi | 90% | 2530 fps | 95.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2605 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,053 psi | 82% | 2513 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 84% | 55,071 psi | 88% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,114 psi | 87% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,578 psi | 88% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,679 psi | 88% | 2477 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,912 psi | 90% | 2556 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,077 psi | 71% | 2392 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 53,896 psi | 86% | 2461 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,956 psi | 90% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,868 psi | 88% | 2562 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,340 psi | 76% | 2516 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,767 psi | 89% | 2533 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,085 psi | 87% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,809 psi | 86% | 2575 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,189 psi | 61% | 2477 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,376 psi | 90% | 2539 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,848 psi | 77% | 2454 fps | 96.3% |
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% | 52,417 psi | 84% | 2369 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,121 psi | 72% | 2313 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,417 psi | 84% | 2451 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,772 psi | 70% | 2303 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 34,287 psi | 55% | 2231 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 42,699 psi | 68% | 2316 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,705 psi | 51% | 2182 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 80% | 48,298 psi | 77% | 2421 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,046 psi | 66% | 2290 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 43,381 psi | 70% | 2405 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,357 psi | 81% | 2421 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,329 psi | 82% | 2392 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,266 psi | 71% | 2467 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,002 psi | 66% | 2313 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,947 psi | 70% | 2372 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,879 psi | 51% | 2195 fps | 96.6% |
| Alliant Reloder-17 | 56.3 gr | 80% | 35,462 psi | 57% | 2303 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,757 psi | 69% | 2402 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,453 psi | 68% | 2441 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,063 psi | 42% | 2070 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,243 psi | 53% | 2264 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,604 psi | 51% | 2274 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,674 psi | 76% | 2431 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 40,915 psi | 66% | 2320 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 42,453 psi | 68% | 2441 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 38,957 psi | 62% | 2251 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,953 psi | 83% | 2402 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,588 psi | 80% | 2444 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,582 psi | 67% | 2326 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 36,201 psi | 58% | 2274 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 42,090 psi | 67% | 2343 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,805 psi | 78% | 2428 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,283 psi | 47% | 2103 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,991 psi | 72% | 2411 fps | 100% |
| Hodgdon Superformance | 64 gr | 86% | 40,582 psi | 65% | 2388 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 43% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,688 psi | 75% | 2385 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,979 psi | 79% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,134 psi | 69% | 2320 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,484 psi | 73% | 2343 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 39,175 psi | 63% | 2277 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,942 psi | 61% | 2231 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 30,719 psi | 49% | 2146 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 45,034 psi | 72% | 2395 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 50,357 psi | 81% | 2421 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,819 psi | 77% | 2398 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,819 psi | 77% | 2356 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,134 psi | 69% | 2320 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,520 psi | 57% | 2188 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 35,868 psi | 58% | 2215 fps | 95.1% |
| Lovex S071 | <<locked>> | 96% | 32,938 psi | 53% | 2201 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,268 psi | 76% | 2372 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,688 psi | 76% | 2372 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,308 psi | 69% | 2359 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 44,164 psi | 71% | 2405 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 38,957 psi | 62% | 2405 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 31,966 psi | 51% | 2182 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 43,018 psi | 69% | 2375 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 35,389 psi | 57% | 2267 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 50,227 psi | 81% | 2441 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,053 psi | 80% | 2454 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 44% | 1385 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,640 psi | 67% | 2310 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,615 psi | 75% | 2467 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,695 psi | 60% | 2356 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,401 psi | 50% | 2198 fps | 95.9% |
| ReloadSwiss RS 70 | 58.6 gr | 82% | 33,344 psi | 53% | 2251 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 51,387 psi | 82% | 2398 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,136 psi | 72% | 2333 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,479 psi | 62% | 2274 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 47,935 psi | 77% | 2438 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 94% | 41,423 psi | 66% | 2382 fps | 95% |
| Rottweil R 907 | <<locked>> | 82% | 38,957 psi | 62% | 2251 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,520 psi | 57% | 2188 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,819 psi | 77% | 2398 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,134 psi | 69% | 2320 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,868 psi | 58% | 2215 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,334 psi | 63% | 2316 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,762 psi | 78% | 2418 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,630 psi | 75% | 2395 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,501 psi | 78% | 2320 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,640 psi | 65% | 2205 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,927 psi | 59% | 2182 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,758 psi | 70% | 2428 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,037 psi | 77% | 2320 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,530 psi | 78% | 2411 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,131 psi | 63% | 2274 fps | 99.6% |
| Somchem S361 | <<locked>> | 98% | 52,750 psi | 85% | 2480 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 28,689 psi | 46% | 2146 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 39,479 psi | 63% | 2323 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 48,950 psi | 78% | 2306 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,962 psi | 72% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,208 psi | 72% | 2316 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,231 psi | 60% | 2215 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,315 psi | 53% | 2182 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 41,423 psi | 66% | 2346 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 50,618 psi | 81% | 2418 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,656 psi | 70% | 2313 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,880 psi | 53% | 2185 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 28,152 psi | 45% | 2139 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,880 psi | 53% | 2162 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 50,633 psi | 81% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,201 psi | 58% | 2274 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,078 psi | 42% | 2142 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,325 psi | 74% | 2402 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,875 psi | 72% | 2405 fps | 95.5% |
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 106 powders for .338 Win Mag. loaded with the .338 | 250gr | Rhino Solid Shank. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,625 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, 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. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .338 Win 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.