Load Specifications
Load data in caliber .338 Federal with .338 | 250gr | Woodleigh RN SN bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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 1680 | <<locked>> | 82% | 54,462 psi | 90% | 2149 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,795 psi | 89% | 2208 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 51,750 psi | 86% | 2244 fps | 98.2% |
| Accurate 2230 | <<locked>> | 84% | 51,793 psi | 86% | 2251 fps | 98.5% |
| Accurate 2460 | <<locked>> | 90% | 52,373 psi | 87% | 2231 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,518 psi | 87% | 2251 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,156 psi | 88% | 2277 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,704 psi | 81% | 2244 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 52,214 psi | 87% | 2136 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 52,678 psi | 88% | 2152 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 52,518 psi | 87% | 2274 fps | 99% |
| ADI AR 2207 | <<locked>> | 84% | 52,997 psi | 88% | 2149 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,328 psi | 84% | 2228 fps | 98.1% |
| ADI AR 2219 | <<locked>> | 86% | 51,314 psi | 85% | 2231 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 52,533 psi | 87% | 2247 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 96% | 54,157 psi | 90% | 2267 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,330 psi | 89% | 2326 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 52,083 psi | 87% | 2356 fps | 98.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,675 psi | 81% | 2244 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 90% | 54,085 psi | 90% | 2218 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,040 psi | 88% | 2300 fps | 98.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,192 psi | 72% | 2231 fps | 97.8% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,172 psi | 90% | 2165 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,157 psi | 90% | 2175 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 52,098 psi | 87% | 2287 fps | 98% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,095 psi | 80% | 2251 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 52,054 psi | 86% | 2198 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,447 psi | 89% | 2306 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 92% | 52,054 psi | 86% | 2339 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 90% | 53,272 psi | 89% | 2251 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 54,230 psi | 90% | 2277 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 50,502 psi | 84% | 2257 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 84% | 54,360 psi | 90% | 2172 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,852 psi | 88% | 2283 fps | 99.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 54,288 psi | 90% | 2349 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,736 psi | 56% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 51,445 psi | 85% | 2247 fps | 99.1% |
| IMR 3031 | <<locked>> | 96% | 51,140 psi | 85% | 2274 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2254 fps | 98.6% |
| IMR 4198 | <<locked>> | 88% | 52,040 psi | 86% | 2149 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 54,317 psi | 90% | 2329 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 94% | 52,533 psi | 87% | 2247 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 84% | 52,431 psi | 87% | 2238 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 52,315 psi | 87% | 2238 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 98% | 54,172 psi | 90% | 2300 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 53,824 psi | 89% | 2221 fps | 99% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2254 fps | 99.6% |
| Norma 200 | <<locked>> | 86% | 54,375 psi | 90% | 2198 fps | 100% |
| Norma 201 | <<locked>> | 96% | 51,271 psi | 85% | 2234 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 51,256 psi | 85% | 2241 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,098 psi | 87% | 2293 fps | 99% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,475 psi | 87% | 2313 fps | 98.8% |
| Ramshot TAC | <<locked>> | 94% | 53,345 psi | 89% | 2254 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 94% | 51,706 psi | 86% | 2274 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,215 psi | 90% | 2251 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,953 psi | 56% | 1339 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 52,475 psi | 87% | 2238 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 52,344 psi | 87% | 2352 fps | 98.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,209 psi | 77% | 2290 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 94% | 52,547 psi | 87% | 2224 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 51,663 psi | 86% | 2231 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,831 psi | 74% | 2198 fps | 98.5% |
| Shooters World AR Plus | <<locked>> | 84% | 52,431 psi | 87% | 2238 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,172 psi | 90% | 2300 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2254 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,649 psi | 87% | 2211 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,737 psi | 89% | 1942 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,561 psi | 86% | 2238 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,297 psi | 79% | 2251 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 52,069 psi | 87% | 2195 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 54,244 psi | 90% | 2274 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,317 psi | 90% | 2293 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 51,010 psi | 85% | 2159 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,879 psi | 83% | 2156 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,287 psi | 89% | 2277 fps | 99.8% |
| Somchem S335 | <<locked>> | 96% | 52,823 psi | 88% | 2195 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,345 psi | 89% | 2270 fps | 98.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,064 psi | 77% | 2201 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 33,025 psi | 55% | 2054 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 84% | 52,968 psi | 88% | 2106 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,259 psi | 90% | 2175 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 54,012 psi | 90% | 2188 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2244 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,735 psi | 86% | 2224 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,498 psi | 74% | 2156 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 94% | 52,939 psi | 88% | 2244 fps | 99.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,229 psi | 88% | 2260 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,089 psi | 68% | 2103 fps | 97.1% |
| Winchester 748 | <<locked>> | 94% | 51,256 psi | 85% | 2283 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,534 psi | 89% | 2300 fps | 99.4% |
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 1680 | <<locked>> | 80% | 51,097 psi | 85% | 2113 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,085 psi | 58% | 1959 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 45,324 psi | 75% | 2152 fps | 97.1% |
| Accurate 2230 | <<locked>> | 80% | 45,281 psi | 75% | 2162 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 37,492 psi | 62% | 2028 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 27,354 psi | 45% | 1877 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 33,054 psi | 55% | 1985 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 25,976 psi | 43% | 1857 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 80% | 43,642 psi | 73% | 2028 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 44,005 psi | 73% | 2037 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 34,272 psi | 57% | 1991 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 47,050 psi | 78% | 2083 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 37,362 psi | 62% | 2031 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 41,945 psi | 70% | 2106 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,011 psi | 57% | 1965 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 80% | 32,300 psi | 54% | 1978 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,696 psi | 64% | 2110 fps | 97.3% |
| Alliant Power Pro 2000-MR | 41.6 gr | 90% | 40,089 psi | 67% | 2165 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 31,415 psi | 52% | 1965 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,943 psi | 66% | 2037 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 36,506 psi | 61% | 2054 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 35,723 psi | 59% | 2096 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,283 psi | 80% | 2096 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,959 psi | 70% | 2024 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 40,277 psi | 67% | 2113 fps | 95.5% |
| Bofors RP3 | <<locked>> | 86% | 30,414 psi | 51% | 1959 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,434 psi | 61% | 1969 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,444 psi | 52% | 1972 fps | 96.4% |
| Hodgdon CFE223 | 38.8 gr | 82% | 37,333 psi | 62% | 2110 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 38,609 psi | 64% | 2057 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 38,943 psi | 65% | 2070 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 41,365 psi | 69% | 2129 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 48,066 psi | 80% | 2096 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 32,271 psi | 54% | 1959 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 32,474 psi | 54% | 2005 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,048 psi | 42% | 1165 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 33,214 psi | 55% | 1962 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 30,705 psi | 51% | 1965 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 36,651 psi | 61% | 2014 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 41,278 psi | 69% | 2014 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 34,983 psi | 58% | 2037 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 34,011 psi | 57% | 1965 fps | 96.4% |
| Lovex D073.4 | <<locked>> | 80% | 45,876 psi | 76% | 2156 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 37,217 psi | 62% | 2028 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 29,573 psi | 49% | 1929 fps | 97% |
| Lovex S060 | <<locked>> | 82% | 35,650 psi | 59% | 1952 fps | 95.4% |
| Lovex S062 | <<locked>> | 82% | 29,994 psi | 50% | 1903 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 45,049 psi | 75% | 2090 fps | 100% |
| Norma 201 | <<locked>> | 80% | 31,444 psi | 52% | 1916 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 31,212 psi | 52% | 1932 fps | 98.1% |
| Norma 203B | <<locked>> | 88% | 35,781 psi | 59% | 2047 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 90% | 37,971 psi | 63% | 2096 fps | 95.8% |
| Ramshot TAC | <<locked>> | 90% | 46,804 psi | 78% | 2169 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 34,795 psi | 58% | 2014 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 36,912 psi | 61% | 1998 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,077 psi | 42% | 1194 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,261 psi | 64% | 2037 fps | 98.8% |
| ReloadSwiss RS 52 | 39.4 gr | 88% | 37,608 psi | 62% | 2126 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 29,588 psi | 49% | 1969 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 35,143 psi | 58% | 1969 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 80% | 29,921 psi | 50% | 1880 fps | 95% |
| Rottweil R 903 | <<locked>> | 90% | 32,445 psi | 54% | 1995 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 45,876 psi | 76% | 2156 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,573 psi | 49% | 1929 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 29,994 psi | 50% | 1903 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,538 psi | 67% | 2047 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,559 psi | 81% | 1890 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,569 psi | 71% | 2119 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 36,796 psi | 61% | 2080 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,640 psi | 68% | 2047 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 44,222 psi | 73% | 2142 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 34,838 psi | 58% | 2005 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,431 psi | 56% | 1900 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,108 psi | 45% | 1795 fps | 97.7% |
| Somchem S321 | <<locked>> | 80% | 35,810 psi | 59% | 2021 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 32,677 psi | 54% | 1906 fps | 99% |
| Somchem S341 | <<locked>> | 84% | 35,781 psi | 59% | 2014 fps | 95.3% |
| Somchem S355 | <<locked>> | 90% | 33,968 psi | 56% | 2005 fps | 95.6% |
| Somchem S365 | <<locked>> | 98% | 31,227 psi | 52% | 2014 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 47,094 psi | 78% | 2044 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,072 psi | 63% | 1969 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,286 psi | 55% | 1906 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 28,326 psi | 47% | 1883 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 29,530 psi | 49% | 1883 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 86% | 28,601 psi | 48% | 1880 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 33,779 psi | 56% | 1959 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 80% | 28,210 psi | 47% | 1870 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 36,056 psi | 60% | 2018 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 32,314 psi | 54% | 1985 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 33,837 psi | 56% | 2005 fps | 95.6% |
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 113 powders for .338 Federal loaded with the .338 | 250gr | Woodleigh RN SN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,356 fps; across all powders the maximum-charge window runs from 1,306 fps to 2,356 fps. Accurate 2495 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Accurate 4350 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. Hodgdon CFE223, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .338 Federal with the .338 | 250gr | Woodleigh RN SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.