Load Specifications
Load data in caliber .338 Federal with .338 | 190gr | Hammer HHT bullet and 47 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% | 52,576 psi | 87% | 2395 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,222 psi | 73% | 2365 fps | 99.3% |
| Accurate 2460ᴾ | <<locked>> | 100% | 49,066 psi | 82% | 2454 fps | 97.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,474 psi | 54% | 2247 fps | 97.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 42,293 psi | 70% | 2395 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 96% | 52,750 psi | 88% | 2395 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 96% | 53,301 psi | 89% | 2398 fps | 98% |
| ADI AR 2205 | <<locked>> | 82% | 51,735 psi | 86% | 2270 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 54,331 psi | 90% | 2467 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 53,214 psi | 88% | 2526 fps | 99.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,147 psi | 68% | 2395 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 51,155 psi | 85% | 2477 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 94% | 53,621 psi | 89% | 2444 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 53,838 psi | 89% | 2431 fps | 99.5% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2379 fps | 95.8% |
| Hodgdon CFE BLK | <<locked>> | 82% | 53,693 psi | 89% | 2451 fps | 96.3% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 51,039 psi | 85% | 2500 fps | 99.1% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 52,301 psi | 87% | 2520 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 92% | 51,721 psi | 86% | 2395 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,299 psi | 52% | 1430 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,943 psi | 65% | 2365 fps | 97.8% |
| IMR 4198ᴾ | <<locked>> | 100% | 53,345 psi | 89% | 2454 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 52,127 psi | 87% | 2369 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,083 psi | 87% | 2402 fps | 100% |
| Lovex D073.4 | <<locked>> | 96% | 54,389 psi | 90% | 2526 fps | 98% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 49,342 psi | 82% | 2454 fps | 96.6% |
| Lovex S053 | <<locked>> | 90% | 53,534 psi | 89% | 2359 fps | 100% |
| Norma 200 | <<locked>> | 96% | 51,822 psi | 86% | 2467 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,610 psi | 66% | 2333 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,198 psi | 52% | 1467 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 51,663 psi | 86% | 2402 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 50,778 psi | 84% | 2474 fps | 97.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,845 psi | 73% | 2365 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 96% | 54,389 psi | 90% | 2526 fps | 98% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,083 psi | 87% | 2402 fps | 100% |
| Shooters World SOCOM | <<locked>> | 82% | 52,779 psi | 88% | 2379 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 54,172 psi | 90% | 2224 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 53,272 psi | 89% | 2526 fps | 98.6% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 52,562 psi | 87% | 2484 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,758 psi | 73% | 2303 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,989 psi | 70% | 2306 fps | 97.5% |
| Vihtavuori N110 | <<locked>> | 84% | 52,939 psi | 88% | 2270 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 51,430 psi | 85% | 2388 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 49,284 psi | 82% | 2392 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,757 psi | 71% | 2310 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,998 psi | 58% | 2260 fps | 97.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,826 psi | 63% | 2270 fps | 95.8% |
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% | 37,753 psi | 63% | 2178 fps | 99% |
| Accurate 2015 | <<locked>> | 86% | 28,848 psi | 48% | 2083 fps | 95.7% |
| Accurate 2460 | <<locked>> | 92% | 37,521 psi | 62% | 2274 fps | 95.2% |
| Accurate 2495 | <<locked>> | 94% | 26,527 psi | 44% | 2116 fps | 95.5% |
| Accurate 2520 | <<locked>> | 98% | 39,523 psi | 66% | 2349 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 32,547 psi | 54% | 2064 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 86% | 39,653 psi | 66% | 2195 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 48,892 psi | 81% | 2234 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,591 psi | 56% | 2165 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 33,663 psi | 56% | 2201 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 82% | 23,714 psi | 39% | 1998 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,760 psi | 46% | 2064 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,143 psi | 58% | 2162 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 32,590 psi | 54% | 2096 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,194 psi | 75% | 2343 fps | 95.2% |
| Hodgdon CFE BLK | <<locked>> | 80% | 50,314 psi | 84% | 2405 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 88% | 34,824 psi | 58% | 2228 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 90% | 37,463 psi | 62% | 2283 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 35,882 psi | 60% | 2139 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,018 psi | 38% | 1276 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 32,576 psi | 54% | 2234 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 30,342 psi | 50% | 2070 fps | 98.2% |
| IMR 4227 | <<locked>> | 80% | 41,133 psi | 68% | 2218 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 49,240 psi | 82% | 2362 fps | 100% |
| Lovex D073.4 | 36.4 gr | 88% | 41,046 psi | 68% | 2333 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 96% | 43,076 psi | 72% | 2362 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 40,219 psi | 67% | 2182 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,430 psi | 52% | 2136 fps | 98.5% |
| Norma 202 | <<locked>> | 98% | 37,130 psi | 62% | 2287 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,800 psi | 38% | 1306 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,118 psi | 67% | 2238 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 41,742 psi | 69% | 2336 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 94% | 36,854 psi | 61% | 2241 fps | 95% |
| Shooters World AR Plus | 36.4 gr | 88% | 41,046 psi | 68% | 2333 fps | 95.4% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,240 psi | 82% | 2362 fps | 100% |
| Shooters World SOCOM | <<locked>> | 80% | 49,443 psi | 82% | 2336 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,449 psi | 62% | 2014 fps | 100% |
| SNPE Vectan SP 10 | 36.3 gr | 88% | 38,406 psi | 64% | 2297 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,429 psi | 51% | 2103 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 38,914 psi | 65% | 2224 fps | 95.6% |
| Somchem S335 | <<locked>> | 94% | 34,969 psi | 58% | 2182 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 47,326 psi | 79% | 2205 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 33,823 psi | 56% | 2136 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,122 psi | 45% | 1998 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 86% | 28,311 psi | 47% | 2031 fps | 95% |
| Vihtavuori N135 | <<locked>> | 92% | 27,673 psi | 46% | 2096 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 98% | 35,578 psi | 59% | 2228 fps | 95.1% |
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 47 powders for .338 Federal loaded with the .338 | 190gr | Hammer HHT. ADI AR 2219 delivers the highest muzzle velocity at 2,526 fps; across all powders the maximum-charge window runs from 1,430 fps to 2,526 fps. Accurate 2015 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.338" calls for a 1:11.5 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 | 190gr | Hammer HHT 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.