Load Specifications
Load data in caliber .338 Federal with .338 | 225gr | Barnes TSX FB bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon H322 and SNPE Vectan SP 10.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 51,996 psi | 86% | 2205 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2277 fps | 100% |
| Accurate 2200 | <<locked>> | 90% | 51,721 psi | 86% | 2310 fps | 96.1% |
| Accurate 2230 | <<locked>> | 90% | 51,082 psi | 85% | 2313 fps | 96.4% |
| Accurate 2460 | <<locked>> | 98% | 54,186 psi | 90% | 2336 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,291 psi | 65% | 2188 fps | 99.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 50,749 psi | 84% | 2333 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,637 psi | 61% | 2162 fps | 98.3% |
| Accurate LT-30 | <<locked>> | 92% | 52,968 psi | 88% | 2218 fps | 100% |
| Accurate LT-32 | <<locked>> | 92% | 53,476 psi | 89% | 2231 fps | 99.5% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 47,703 psi | 79% | 2283 fps | 96.3% |
| ADI AR 2207 | <<locked>> | 90% | 52,359 psi | 87% | 2241 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 54,114 psi | 90% | 2349 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,024 psi | 85% | 2300 fps | 98.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,225 psi | 80% | 2303 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 51,648 psi | 86% | 2385 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 96% | 52,475 psi | 87% | 2293 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 54,244 psi | 90% | 2257 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 54,288 psi | 90% | 2257 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 54,360 psi | 90% | 2300 fps | 99% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,095 psi | 80% | 2320 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 98% | 50,836 psi | 84% | 2385 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 96% | 51,880 psi | 86% | 2323 fps | 100% |
| Hodgdon H335 | <<locked>> | 96% | 53,403 psi | 89% | 2352 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 88% | 51,547 psi | 86% | 2215 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 47,863 psi | 80% | 2293 fps | 97% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 43,366 psi | 72% | 2264 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,358 psi | 54% | 1329 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 47,210 psi | 78% | 2260 fps | 96.7% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,513 psi | 76% | 2300 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 51,561 psi | 86% | 2238 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,170 psi | 87% | 2175 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,024 psi | 85% | 2300 fps | 98.1% |
| Lovex D073.4 | <<locked>> | 90% | 51,924 psi | 86% | 2313 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 96% | 50,531 psi | 84% | 2297 fps | 98.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,411 psi | 74% | 2264 fps | 98.7% |
| Lovex S053 | <<locked>> | 86% | 53,243 psi | 88% | 2159 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 50,256 psi | 83% | 2241 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 41,075 psi | 68% | 2182 fps | 96.4% |
| Norma 200 | <<locked>> | 92% | 52,663 psi | 87% | 2277 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 46,470 psi | 77% | 2244 fps | 97.5% |
| Norma 202ᴾ | <<locked>> | 100% | 46,354 psi | 77% | 2264 fps | 99.3% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 50,111 psi | 83% | 2320 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 98% | 53,925 psi | 90% | 2313 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,995 psi | 53% | 1358 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,851 psi | 86% | 2208 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,561 psi | 86% | 2306 fps | 99.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,488 psi | 84% | 2287 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 43,598 psi | 72% | 2195 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 90% | 51,924 psi | 86% | 2313 fps | 99.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,411 psi | 74% | 2264 fps | 98.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 41,075 psi | 68% | 2182 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 52,765 psi | 88% | 2280 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,346 psi | 90% | 2034 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 54,317 psi | 90% | 2352 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 53,998 psi | 90% | 2306 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 46,311 psi | 77% | 2260 fps | 95.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,314 psi | 84% | 2224 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,103 psi | 67% | 2103 fps | 99% |
| Somchem S321 | <<locked>> | 98% | 52,257 psi | 87% | 2343 fps | 98.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,370 psi | 80% | 2224 fps | 99.8% |
| Somchem S341ᴾ | <<locked>> | 100% | 48,573 psi | 81% | 2274 fps | 96.1% |
| Vihtavuori N120 | <<locked>> | 90% | 52,504 psi | 87% | 2198 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,563 psi | 89% | 2254 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,400 psi | 82% | 2221 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,176 psi | 68% | 2195 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,859 psi | 73% | 2205 fps | 99.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 52,025 psi | 86% | 2306 fps | 98.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,221 psi | 70% | 2201 fps | 98.6% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,647 psi | 82% | 2339 fps | 98.7% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 45,542 psi | 76% | 2264 fps | 96.4% |
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% | 42,554 psi | 71% | 2087 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 27,456 psi | 46% | 1896 fps | 97.6% |
| Accurate 2200 | <<locked>> | 88% | 48,428 psi | 80% | 2264 fps | 95.4% |
| Accurate 2230 | <<locked>> | 88% | 47,688 psi | 79% | 2267 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 29,269 psi | 49% | 1952 fps | 95.1% |
| Accurate 2495 | <<locked>> | 82% | 21,248 psi | 35% | 1821 fps | 95.4% |
| Accurate 2520 | <<locked>> | 86% | 31,009 psi | 52% | 2028 fps | 95.3% |
| Accurate 4064 | <<locked>> | 92% | 28,094 psi | 47% | 1998 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 36,579 psi | 61% | 1988 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 36,970 psi | 61% | 1995 fps | 96.9% |
| ADI AR 2206H | <<locked>> | 96% | 42,279 psi | 70% | 2201 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 38,348 psi | 64% | 2064 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,736 psi | 56% | 2047 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 90% | 37,376 psi | 62% | 2096 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 25,425 psi | 42% | 1913 fps | 99% |
| Alliant Power Pro 1200-R | 34.6 gr | 88% | 39,479 psi | 66% | 2205 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,995 psi | 53% | 1995 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,885 psi | 66% | 2073 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,708 psi | 58% | 1985 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 35,708 psi | 59% | 2024 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 36,709 psi | 61% | 2146 fps | 95.8% |
| Hodgdon CFE223 | <<locked>> | 96% | 47,732 psi | 79% | 2343 fps | 95.5% |
| Hodgdon H322 | 31.4 gr | 80% | 30,792 psi | 51% | 1988 fps | 96.9% |
| Hodgdon H335 | <<locked>> | 80% | 30,893 psi | 51% | 1998 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 40,451 psi | 67% | 2060 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 94% | 39,813 psi | 66% | 2172 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 40,741 psi | 68% | 2221 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,641 psi | 39% | 1184 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 41,872 psi | 70% | 2178 fps | 95.4% |
| IMR 3031 | <<locked>> | 82% | 25,860 psi | 43% | 1926 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 34,069 psi | 57% | 1985 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 45,992 psi | 76% | 2103 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 37,376 psi | 62% | 2096 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 36,027 psi | 60% | 2083 fps | 96.6% |
| Lovex D073.5 | <<locked>> | 84% | 33,359 psi | 55% | 2034 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 90% | 31,546 psi | 52% | 2051 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 44,889 psi | 75% | 2060 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 44,353 psi | 74% | 2159 fps | 95.4% |
| Lovex S062 | <<locked>> | 98% | 38,450 psi | 64% | 2136 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 36,056 psi | 60% | 2054 fps | 100% |
| Norma 201 | <<locked>> | 94% | 38,493 psi | 64% | 2123 fps | 95.6% |
| Norma 202 | <<locked>> | 86% | 29,689 psi | 49% | 1978 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 96% | 44,092 psi | 73% | 2238 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 92% | 44,077 psi | 73% | 2178 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,482 psi | 39% | 1211 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,513 psi | 76% | 2133 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 32,750 psi | 54% | 2011 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 82% | 29,472 psi | 49% | 1936 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 96% | 38,580 psi | 64% | 2116 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 36,027 psi | 60% | 2083 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 31,546 psi | 52% | 2051 fps | 95.5% |
| Shooters World Precision | <<locked>> | 98% | 38,450 psi | 64% | 2136 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 39,900 psi | 66% | 2103 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,539 psi | 69% | 1893 fps | 100% |
| SNPE Vectan SP 10 | 33.6 gr | 80% | 33,924 psi | 56% | 2051 fps | 96.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,851 psi | 55% | 2001 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 43,453 psi | 72% | 2218 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 30,705 psi | 51% | 1919 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 27,760 psi | 46% | 1873 fps | 95.7% |
| Somchem S321 | <<locked>> | 88% | 37,260 psi | 62% | 2123 fps | 95.5% |
| Somchem S335 | <<locked>> | 82% | 27,876 psi | 46% | 1883 fps | 95.7% |
| Somchem S341 | <<locked>> | 98% | 45,556 psi | 76% | 2234 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 38,580 psi | 64% | 2028 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,937 psi | 51% | 1929 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 26,876 psi | 45% | 1854 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 80% | 22,046 psi | 37% | 1804 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 86% | 28,355 psi | 47% | 1929 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 90% | 37,231 psi | 62% | 2093 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 90% | 30,690 psi | 51% | 1995 fps | 95.6% |
| Winchester 748 | <<locked>> | 90% | 35,752 psi | 59% | 2119 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 42,714 psi | 71% | 2224 fps | 95.7% |
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 71 powders for .338 Federal loaded with the .338 | 225gr | Barnes TSX FB. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,385 fps; across all powders the maximum-charge window runs from 1,329 fps to 2,385 fps. Accurate 2015 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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 Power Pro 1200-R, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .338 Federal with the .338 | 225gr | Barnes TSX FB 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.