Load Specifications
Load data in caliber .338 Federal with .338 | 185gr | Fox Classic Hunter bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, Shooters World AR Plus and Lovex D073.4.
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>> | 90% | 53,142 psi | 88% | 2474 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,831 psi | 74% | 2444 fps | 99.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 49,821 psi | 83% | 2536 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,576 psi | 54% | 2313 fps | 97.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 43,033 psi | 71% | 2474 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 96% | 53,447 psi | 89% | 2474 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 96% | 54,041 psi | 90% | 2480 fps | 98.3% |
| ADI AR 2205 | <<locked>> | 82% | 52,402 psi | 87% | 2346 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,025 psi | 86% | 2510 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 54,259 psi | 90% | 2612 fps | 99.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,394 psi | 69% | 2467 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,170 psi | 87% | 2559 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 94% | 54,375 psi | 90% | 2523 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 51,300 psi | 85% | 2467 fps | 99.4% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 48,573 psi | 81% | 2464 fps | 96.2% |
| Hodgdon CFE BLK | <<locked>> | 82% | 54,012 psi | 90% | 2530 fps | 96.6% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2579 fps | 99.3% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 53,185 psi | 88% | 2605 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 92% | 52,359 psi | 87% | 2474 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,154 psi | 52% | 1476 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,421 psi | 65% | 2444 fps | 98.1% |
| IMR 4198ᴾ | <<locked>> | 100% | 54,085 psi | 90% | 2533 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 52,692 psi | 88% | 2444 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,591 psi | 87% | 2480 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 51,692 psi | 86% | 2562 fps | 97.9% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 50,386 psi | 84% | 2539 fps | 97% |
| Lovex S053 | <<locked>> | 90% | 53,969 psi | 90% | 2434 fps | 100% |
| Norma 200 | <<locked>> | 96% | 52,185 psi | 87% | 2543 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,987 psi | 66% | 2405 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,937 psi | 51% | 1512 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,112 psi | 87% | 2477 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 51,576 psi | 86% | 2556 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,801 psi | 73% | 2438 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 94% | 51,692 psi | 86% | 2562 fps | 97.9% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,591 psi | 87% | 2480 fps | 100% |
| Shooters World SOCOM | <<locked>> | 82% | 53,751 psi | 89% | 2457 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 98% | 53,345 psi | 89% | 2526 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 51,692 psi | 86% | 2264 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 54,302 psi | 90% | 2612 fps | 98.9% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 53,751 psi | 89% | 2569 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,440 psi | 74% | 2382 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,491 psi | 59% | 2241 fps | 96% |
| Somchem S321ᴾ | <<locked>> | 100% | 48,515 psi | 81% | 2536 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,322 psi | 70% | 2379 fps | 97.8% |
| Vihtavuori N110 | <<locked>> | 84% | 53,214 psi | 88% | 2343 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,170 psi | 87% | 2467 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,183 psi | 83% | 2474 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,482 psi | 72% | 2388 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,447 psi | 59% | 2336 fps | 98.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,116 psi | 63% | 2343 fps | 96.2% |
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% | 38,014 psi | 63% | 2251 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 26,832 psi | 45% | 2096 fps | 95.1% |
| Accurate 2460 | <<locked>> | 92% | 37,797 psi | 63% | 2346 fps | 95.6% |
| Accurate 2495 | <<locked>> | 94% | 26,426 psi | 44% | 2175 fps | 95.6% |
| Accurate 2520 | <<locked>> | 98% | 39,914 psi | 66% | 2425 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 32,793 psi | 54% | 2133 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 86% | 39,769 psi | 66% | 2264 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 49,255 psi | 82% | 2306 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,504 psi | 56% | 2228 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 33,707 psi | 56% | 2270 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 82% | 23,554 psi | 39% | 2057 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,688 psi | 46% | 2126 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,056 psi | 58% | 2228 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,705 psi | 51% | 2116 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,411 psi | 75% | 2415 fps | 95.5% |
| Hodgdon CFE BLK | <<locked>> | 80% | 50,734 psi | 84% | 2484 fps | 96% |
| Hodgdon H322 | <<locked>> | 86% | 32,909 psi | 55% | 2251 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 90% | 37,855 psi | 63% | 2359 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 36,303 psi | 60% | 2215 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,684 psi | 38% | 1316 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,676 psi | 51% | 2257 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 30,414 psi | 51% | 2136 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 41,292 psi | 69% | 2283 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 49,385 psi | 82% | 2434 fps | 100% |
| Lovex D073.4 | 37.8 gr | 86% | 38,696 psi | 64% | 2359 fps | 95% |
| Lovex D073.5 | <<locked>> | 96% | 43,453 psi | 72% | 2438 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 40,306 psi | 67% | 2251 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,328 psi | 52% | 2198 fps | 98.6% |
| Norma 202 | <<locked>> | 96% | 35,273 psi | 59% | 2316 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,669 psi | 38% | 1352 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,582 psi | 67% | 2313 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 39,508 psi | 66% | 2365 fps | 95% |
| Rottweil R 901 | <<locked>> | 94% | 36,680 psi | 61% | 2306 fps | 95.2% |
| Shooters World AR Plus | 37.8 gr | 86% | 38,696 psi | 64% | 2359 fps | 95% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,385 psi | 82% | 2434 fps | 100% |
| Shooters World SOCOM | <<locked>> | 80% | 50,067 psi | 83% | 2411 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 49,588 psi | 82% | 2477 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,623 psi | 63% | 2080 fps | 100% |
| SNPE Vectan SP 10 | 37.7 gr | 86% | 36,390 psi | 60% | 2326 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,647 psi | 51% | 2175 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,593 psi | 61% | 2247 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 33,315 psi | 55% | 2198 fps | 95.2% |
| Somchem S321 | <<locked>> | 98% | 45,179 psi | 75% | 2487 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 33,069 psi | 55% | 2208 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 47,369 psi | 79% | 2274 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 33,736 psi | 56% | 2195 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,035 psi | 45% | 2057 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 28,224 psi | 47% | 2093 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 92% | 27,702 psi | 46% | 2162 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 98% | 35,839 psi | 60% | 2300 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 50 powders for .338 Federal loaded with the .338 | 185gr | Fox Classic Hunter. ADI AR 2219 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,476 fps to 2,612 fps. Accurate 2015 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.338" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. SNPE Vectan SP 10, Shooters World AR Plus, Lovex D073.4 rank at the top here: for .338 Federal with the .338 | 185gr | Fox Classic Hunter 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.