Load Specifications
Load data in caliber .338 Federal with .338 | 215gr | Sierra GameKing bullet and 79 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, Somchem S321 and Accurate 2230.
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>> | 84% | 51,764 psi | 86% | 2293 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 52,910 psi | 88% | 2382 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 51,808 psi | 86% | 2408 fps | 96.4% |
| Accurate 2230 | <<locked>> | 88% | 51,605 psi | 86% | 2415 fps | 96.8% |
| Accurate 2460 | <<locked>> | 94% | 51,488 psi | 86% | 2398 fps | 99.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,034 psi | 73% | 2336 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 51,837 psi | 86% | 2441 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,930 psi | 68% | 2313 fps | 99.1% |
| Accurate LT-30 | <<locked>> | 90% | 52,663 psi | 87% | 2310 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 53,171 psi | 88% | 2323 fps | 99.6% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2434 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 88% | 52,765 psi | 88% | 2336 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 54,433 psi | 90% | 2451 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 51,764 psi | 86% | 2405 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,489 psi | 87% | 2448 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,402 psi | 87% | 2493 fps | 98.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 41,582 psi | 69% | 2306 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,490 psi | 89% | 2398 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,140 psi | 85% | 2310 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 54,215 psi | 90% | 2349 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2438 fps | 95.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 40,538 psi | 67% | 2306 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 51,779 psi | 86% | 2362 fps | 98.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,620 psi | 87% | 2474 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 96% | 51,605 psi | 86% | 2497 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 94% | 52,446 psi | 87% | 2425 fps | 100% |
| Hodgdon H335 | <<locked>> | 94% | 53,548 psi | 89% | 2448 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 51,808 psi | 86% | 2313 fps | 99.9% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,170 psi | 87% | 2448 fps | 98% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,007 psi | 78% | 2415 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,837 psi | 55% | 1401 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2405 fps | 97.6% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,530 psi | 82% | 2444 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 51,648 psi | 86% | 2329 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,677 psi | 86% | 2260 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 46,688 psi | 78% | 2398 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 98% | 51,764 psi | 86% | 2405 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 88% | 52,243 psi | 87% | 2411 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 94% | 51,459 psi | 85% | 2402 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,211 psi | 82% | 2418 fps | 99.3% |
| Lovex S053 | <<locked>> | 84% | 53,447 psi | 89% | 2251 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 53,708 psi | 89% | 2382 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2323 fps | 97.4% |
| Norma 200 | <<locked>> | 90% | 53,621 psi | 89% | 2379 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,415 psi | 84% | 2388 fps | 98.3% |
| Norma 202ᴾ | <<locked>> | 100% | 50,502 psi | 84% | 2408 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 44,744 psi | 74% | 2356 fps | 96% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 54,273 psi | 90% | 2474 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 96% | 53,998 psi | 90% | 2411 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,880 psi | 55% | 1437 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,880 psi | 86% | 2300 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,170 psi | 87% | 2408 fps | 99.4% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 47,892 psi | 80% | 2454 fps | 95.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,176 psi | 67% | 2329 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 98% | 51,764 psi | 86% | 2392 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,543 psi | 79% | 2339 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 88% | 52,243 psi | 87% | 2411 fps | 99.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,211 psi | 82% | 2418 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2323 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,968 psi | 88% | 2379 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,215 psi | 90% | 2119 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,401 psi | 85% | 2411 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 51,517 psi | 86% | 2372 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 50,270 psi | 84% | 2408 fps | 97% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 53,998 psi | 90% | 2362 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,294 psi | 72% | 2238 fps | 99.5% |
| Somchem S321 | <<locked>> | 96% | 52,910 psi | 88% | 2444 fps | 98.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,054 psi | 86% | 2359 fps | 100% |
| Somchem S341ᴾ | <<locked>> | 100% | 52,533 psi | 87% | 2425 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 88% | 52,808 psi | 88% | 2290 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 53,969 psi | 90% | 2352 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,127 psi | 88% | 2356 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,078 psi | 75% | 2333 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 47,732 psi | 79% | 2346 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,130 psi | 63% | 2211 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 98% | 52,649 psi | 87% | 2408 fps | 98.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,963 psi | 76% | 2343 fps | 99.2% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,766 psi | 89% | 2487 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 49,327 psi | 82% | 2415 fps | 97.4% |
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% | 45,513 psi | 76% | 2215 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,400 psi | 51% | 2028 fps | 98.5% |
| Accurate 2200 | <<locked>> | 86% | 48,486 psi | 81% | 2362 fps | 95.7% |
| Accurate 2230 | 39.2 gr | 84% | 45,049 psi | 75% | 2320 fps | 95.3% |
| Accurate 2460 | <<locked>> | 80% | 32,343 psi | 54% | 2090 fps | 96.3% |
| Accurate 2495 | <<locked>> | 80% | 22,843 psi | 38% | 1919 fps | 96.3% |
| Accurate 2520 | <<locked>> | 84% | 31,966 psi | 53% | 2119 fps | 95.7% |
| Accurate 4064 | <<locked>> | 88% | 28,079 psi | 47% | 2064 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 39,160 psi | 65% | 2116 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 80% | 39,523 psi | 66% | 2123 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 94% | 43,076 psi | 72% | 2303 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 41,466 psi | 69% | 2188 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,608 psi | 61% | 2185 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 38,072 psi | 63% | 2192 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 27,702 psi | 46% | 2041 fps | 99.6% |
| Alliant Power Pro 1200-R | 37 gr | 86% | 40,306 psi | 67% | 2303 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 38,957 psi | 65% | 2260 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,925 psi | 58% | 2126 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,685 psi | 71% | 2198 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,289 psi | 62% | 2110 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 48,298 psi | 80% | 2392 fps | 95.2% |
| Bofors RP3 | <<locked>> | 98% | 38,087 psi | 63% | 2264 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 36,201 psi | 60% | 2113 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 35,157 psi | 58% | 2198 fps | 95.4% |
| Hodgdon CFE223 | <<locked>> | 92% | 45,034 psi | 75% | 2395 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 33,460 psi | 56% | 2123 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 80% | 33,678 psi | 56% | 2136 fps | 97% |
| Hodgdon H4198 | <<locked>> | 80% | 43,134 psi | 72% | 2192 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 92% | 40,538 psi | 67% | 2267 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 38,841 psi | 65% | 2274 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,250 psi | 40% | 1250 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 39,798 psi | 66% | 2231 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 26,614 psi | 44% | 2018 fps | 96.3% |
| IMR 4198 | <<locked>> | 80% | 36,579 psi | 61% | 2110 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 48,646 psi | 81% | 2224 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 40,944 psi | 68% | 2303 fps | 95% |
| IMR 8208 XBR | <<locked>> | 88% | 38,072 psi | 63% | 2192 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 39,537 psi | 66% | 2224 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 82% | 34,301 psi | 57% | 2129 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 86% | 30,705 psi | 51% | 2106 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 47,834 psi | 79% | 2182 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 42,279 psi | 70% | 2215 fps | 95.1% |
| Lovex S062 | <<locked>> | 94% | 37,318 psi | 62% | 2198 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 39,479 psi | 66% | 2185 fps | 100% |
| Norma 201 | <<locked>> | 90% | 37,144 psi | 62% | 2178 fps | 95.4% |
| Norma 202 | <<locked>> | 82% | 28,601 psi | 48% | 2028 fps | 95.2% |
| Norma 203B | <<locked>> | 98% | 41,829 psi | 69% | 2310 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 44,440 psi | 74% | 2333 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 44,744 psi | 74% | 2280 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,163 psi | 40% | 1280 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,617 psi | 81% | 2260 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,286 psi | 55% | 2100 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 44,817 psi | 74% | 2405 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 35,433 psi | 59% | 2231 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 30,472 psi | 51% | 2028 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 92% | 37,391 psi | 62% | 2175 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 39,537 psi | 66% | 2224 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 30,705 psi | 51% | 2106 fps | 95.3% |
| Shooters World Precision | <<locked>> | 94% | 37,318 psi | 62% | 2198 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 40,350 psi | 67% | 2195 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,164 psi | 73% | 2005 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 36,970 psi | 61% | 2188 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,505 psi | 59% | 2129 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 44,222 psi | 73% | 2320 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,428 psi | 49% | 1962 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 26,818 psi | 45% | 1926 fps | 95.4% |
| Somchem S321 | 38.9 gr | 84% | 35,360 psi | 59% | 2169 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 28,660 psi | 48% | 1969 fps | 96.1% |
| Somchem S341 | <<locked>> | 94% | 43,279 psi | 72% | 2290 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 41,597 psi | 69% | 2152 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,547 psi | 56% | 2054 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 29,153 psi | 48% | 1978 fps | 98% |
| Vihtavuori N135 | <<locked>> | 80% | 24,323 psi | 40% | 1932 fps | 96.6% |
| Vihtavuori N140 | <<locked>> | 84% | 29,080 psi | 48% | 2018 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 98% | 35,636 psi | 59% | 2165 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 88% | 37,884 psi | 63% | 2185 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 86% | 29,501 psi | 49% | 2044 fps | 95.2% |
| Winchester 748 | <<locked>> | 86% | 34,142 psi | 57% | 2169 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 94% | 40,611 psi | 67% | 2277 fps | 95.4% |
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 79 powders for .338 Federal loaded with the .338 | 215gr | Sierra GameKing. Hodgdon CFE223 delivers the highest muzzle velocity at 2,497 fps; across all powders the maximum-charge window runs from 1,401 fps to 2,497 fps. Accurate 2495 gives the best case fill at 100 %, and 79 of the 79 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 215.0 gr projectile in 0.338" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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, Somchem S321, Accurate 2230 rank at the top here: for .338 Federal with the .338 | 215gr | Sierra GameKing 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.