Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:280 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:1:14.0
Load data in caliber .338 Win Mag. with .338 | 280gr | Rhino Solid Shank bullet and 110 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-16.
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 2495 | <<locked>> | 84% | 53,983 psi | 87% | 2270 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,651 psi | 89% | 2336 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2326 fps | 99.4% |
| Accurate 4064 | <<locked>> | 86% | 54,375 psi | 87% | 2316 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,389 psi | 87% | 2415 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 53,766 psi | 86% | 2343 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,781 psi | 88% | 2346 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,550 psi | 89% | 2451 fps | 98.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 49,632 psi | 80% | 2395 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,912 psi | 90% | 2336 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,447 psi | 86% | 2454 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,419 psi | 89% | 2369 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,666 psi | 89% | 2385 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,100 psi | 88% | 2457 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 52,663 psi | 84% | 2438 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 2441 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,935 psi | 77% | 2395 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,266 psi | 73% | 2343 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,784 psi | 64% | 2280 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,111 psi | 82% | 2503 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,359 psi | 86% | 2362 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,077 psi | 71% | 2333 fps | 96.8% |
| Bofors RP3 | <<locked>> | 88% | 56,014 psi | 90% | 2382 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,935 psi | 77% | 2395 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 55,680 psi | 89% | 2372 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,753 psi | 89% | 2369 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,055 psi | 85% | 2356 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 53,142 psi | 85% | 2415 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 90% | 53,490 psi | 86% | 2379 fps | 98.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2398 fps | 96.6% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,025 psi | 83% | 2382 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 54,331 psi | 87% | 2349 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,332 psi | 89% | 2392 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,099 psi | 87% | 2382 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,953 psi | 85% | 2448 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 58% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,288 psi | 89% | 2349 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,042 psi | 88% | 2326 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,462 psi | 87% | 2333 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,679 psi | 86% | 2320 fps | 99.4% |
| IMR 4350 | <<locked>> | 96% | 56,115 psi | 90% | 2398 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,041 psi | 87% | 2352 fps | 99.4% |
| IMR 4831 | <<locked>> | 96% | 54,607 psi | 88% | 2402 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 53,621 psi | 86% | 2365 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,172 psi | 88% | 2392 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 47,152 psi | 76% | 2369 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 55,912 psi | 90% | 2336 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,780 psi | 86% | 2320 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,420 psi | 90% | 2320 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,476 psi | 87% | 2326 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,838 psi | 86% | 2349 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 54,781 psi | 88% | 2382 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,045 psi | 64% | 2205 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 55,854 psi | 90% | 2333 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,316 psi | 85% | 2293 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,955 psi | 88% | 2375 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,084 psi | 85% | 2398 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 50,662 psi | 81% | 2464 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 53,229 psi | 85% | 2402 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,463 psi | 89% | 2398 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2375 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 55,419 psi | 89% | 2451 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 41,742 psi | 67% | 2277 fps | 96.8% |
| Ramshot TAC | <<locked>> | 82% | 56,101 psi | 90% | 2369 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,898 psi | 90% | 2375 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 59% | 1453 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,055 psi | 85% | 2343 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,055 psi | 85% | 2402 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,057 psi | 90% | 2474 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,809 psi | 86% | 2434 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,707 psi | 85% | 2457 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 38,363 psi | 62% | 2287 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 53,345 psi | 86% | 2297 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,173 psi | 90% | 2379 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 53,708 psi | 86% | 2379 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,447 psi | 86% | 2428 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,680 psi | 89% | 2372 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,838 psi | 86% | 2349 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,780 psi | 86% | 2320 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,476 psi | 87% | 2326 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,781 psi | 88% | 2382 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 53,911 psi | 86% | 2385 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,853 psi | 88% | 2352 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,637 psi | 89% | 2365 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,838 psi | 86% | 2234 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,230 psi | 87% | 2238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,534 psi | 86% | 2306 fps | 99.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,953 psi | 85% | 2421 fps | 98.6% |
| Somchem S335 | <<locked>> | 82% | 53,359 psi | 86% | 2234 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,317 psi | 87% | 2336 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,043 psi | 90% | 2372 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 55,361 psi | 89% | 2375 fps | 96.9% |
| Somchem S365 | <<locked>> | 98% | 55,390 psi | 89% | 2441 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2408 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 54,331 psi | 87% | 2218 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,505 psi | 86% | 2257 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,650 psi | 86% | 2274 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,056 psi | 87% | 2313 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,579 psi | 89% | 2395 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,717 psi | 75% | 2293 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,434 psi | 90% | 2336 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,187 psi | 88% | 2313 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,505 psi | 87% | 2402 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,705 psi | 81% | 2408 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2454 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,143 psi | 88% | 2372 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,417 psi | 86% | 2418 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,596 psi | 65% | 2388 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,738 psi | 89% | 2372 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2356 fps | 98% |
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 2495 | <<locked>> | 80% | 47,601 psi | 76% | 2195 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,934 psi | 74% | 2201 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 30,110 psi | 48% | 2011 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,078 psi | 72% | 2201 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,736 psi | 54% | 2093 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 80% | 50,488 psi | 81% | 2300 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,960 psi | 69% | 2182 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 40,408 psi | 65% | 2218 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 98% | 46,456 psi | 74% | 2343 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,547 psi | 84% | 2293 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,688 psi | 75% | 2356 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,207 psi | 69% | 2201 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,050 psi | 74% | 2257 fps | 100% |
| Alliant Reloder-16 | 50.1 gr | 80% | 33,576 psi | 54% | 2103 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,623 psi | 60% | 2208 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 39,885 psi | 64% | 2211 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 39,566 psi | 63% | 2251 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,424 psi | 39% | 1906 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,082 psi | 50% | 2090 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 82% | 27,441 psi | 44% | 2041 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,125 psi | 80% | 2320 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,030 psi | 63% | 2241 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 43,163 psi | 69% | 2211 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 39,566 psi | 63% | 2251 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 38,464 psi | 62% | 2106 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,112 psi | 84% | 2323 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,801 psi | 70% | 2221 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 35,897 psi | 58% | 2133 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 38,986 psi | 63% | 2149 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 46,572 psi | 75% | 2303 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 48,718 psi | 78% | 2336 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,010 psi | 82% | 2306 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,096 psi | 50% | 2018 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,369 psi | 76% | 2297 fps | 100% |
| Hodgdon Superformance | 57 gr | 80% | 34,722 psi | 56% | 2136 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,977 psi | 43% | 1263 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,965 psi | 79% | 2267 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,517 psi | 83% | 2283 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,179 psi | 72% | 2208 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,630 psi | 76% | 2234 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 36,361 psi | 58% | 2093 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,798 psi | 64% | 2133 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 32,735 psi | 52% | 2057 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 47,224 psi | 76% | 2280 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 45,716 psi | 73% | 2254 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 44,193 psi | 71% | 2320 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 52,547 psi | 84% | 2293 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,444 psi | 81% | 2277 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,053 psi | 80% | 2241 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,498 psi | 73% | 2208 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,347 psi | 60% | 2093 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 35,636 psi | 57% | 2077 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 31,198 psi | 50% | 2037 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,487 psi | 79% | 2251 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,038 psi | 80% | 2251 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,455 psi | 73% | 2247 fps | 100% |
| Norma 204 | <<locked>> | 86% | 40,741 psi | 65% | 2208 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 34,069 psi | 55% | 2169 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 33,968 psi | 54% | 2093 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 45,426 psi | 73% | 2267 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 43,859 psi | 70% | 2326 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 32,837 psi | 53% | 2080 fps | 96% |
| Ramshot Magnum | <<locked>> | 98% | 38,783 psi | 62% | 2224 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 52,547 psi | 84% | 2323 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,547 psi | 84% | 2336 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,572 psi | 44% | 1296 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,830 psi | 70% | 2208 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,400 psi | 79% | 2352 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,001 psi | 64% | 2251 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,402 psi | 54% | 2110 fps | 97.8% |
| ReloadSwiss RS 70 | 54.8 gr | 80% | 32,938 psi | 53% | 2113 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 35,824 psi | 57% | 2231 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 47,210 psi | 76% | 2215 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,727 psi | 65% | 2169 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 44,498 psi | 71% | 2241 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 38,595 psi | 62% | 2195 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 38,464 psi | 62% | 2106 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,347 psi | 60% | 2093 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,444 psi | 81% | 2277 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,498 psi | 73% | 2208 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,636 psi | 57% | 2077 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,611 psi | 67% | 2211 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,242 psi | 82% | 2306 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,936 psi | 78% | 2277 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,705 psi | 81% | 2195 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,656 psi | 68% | 2093 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,622 psi | 59% | 2047 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 38,247 psi | 61% | 2188 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 50,183 psi | 80% | 2195 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,039 psi | 82% | 2297 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,191 psi | 66% | 2169 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 48,646 psi | 78% | 2283 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 30,530 psi | 49% | 2057 fps | 99.7% |
| Somchem S385 | <<locked>> | 88% | 36,825 psi | 59% | 2139 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 51,213 psi | 82% | 2182 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,355 psi | 76% | 2185 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,500 psi | 76% | 2198 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,305 psi | 63% | 2113 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,201 psi | 56% | 2090 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 36,245 psi | 58% | 2119 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 52,953 psi | 85% | 2293 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,788 psi | 73% | 2198 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,795 psi | 56% | 2096 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 26,382 psi | 42% | 1965 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 96% | 44,947 psi | 72% | 2352 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,635 psi | 56% | 2070 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 35,897 psi | 58% | 2133 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 22,960 psi | 37% | 1929 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,660 psi | 78% | 2283 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 38,740 psi | 62% | 2169 fps | 95% |
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 118 powders for .338 Win Mag. loaded with the .338 | 280gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,503 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,503 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 280.0 gr projectile in 0.338" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-16 rank at the top here: for .338 Win Mag. with the .338 | 280gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.