Load Specifications
Load data in caliber .338-06 A-Square with .338 | 215gr | Sierra GameKing bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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 2015 | <<locked>> | 92% | 55,332 psi | 88% | 2510 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 56,260 psi | 89% | 2598 fps | 98.8% |
| Accurate 2230 | <<locked>> | 84% | 56,985 psi | 90% | 2612 fps | 99.1% |
| Accurate 2460 | <<locked>> | 88% | 53,882 psi | 85% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 55,390 psi | 88% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,129 psi | 87% | 2589 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,940 psi | 87% | 2598 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 55,999 psi | 89% | 2464 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 56,463 psi | 89% | 2487 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,375 psi | 86% | 2589 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 82% | 54,230 psi | 86% | 2444 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,317 psi | 88% | 2582 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 86% | 56,362 psi | 89% | 2579 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,795 psi | 85% | 2552 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 94% | 56,376 psi | 89% | 2575 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,114 psi | 87% | 2644 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,795 psi | 85% | 2684 fps | 98.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,041 psi | 86% | 2598 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,419 psi | 88% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,158 psi | 87% | 2621 fps | 99% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,790 psi | 76% | 2595 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,071 psi | 87% | 2461 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,969 psi | 87% | 2467 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 53,983 psi | 86% | 2602 fps | 98.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,012 psi | 86% | 2612 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 92% | 56,478 psi | 90% | 2543 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,738 psi | 88% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 53,838 psi | 85% | 2657 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 88% | 54,723 psi | 87% | 2559 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 55,767 psi | 88% | 2585 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 56,057 psi | 89% | 2621 fps | 98% |
| Hodgdon H4198 | <<locked>> | 82% | 54,679 psi | 87% | 2464 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 54,766 psi | 87% | 2598 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,043 psi | 60% | 2352 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 56,405 psi | 89% | 2671 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,301 psi | 54% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 56,333 psi | 89% | 2602 fps | 99.6% |
| IMR 3031 | <<locked>> | 96% | 56,971 psi | 90% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 54,665 psi | 87% | 2566 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 96% | 56,072 psi | 89% | 2546 fps | 95.7% |
| IMR 4198 | <<locked>> | 88% | 56,115 psi | 89% | 2484 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 56,463 psi | 89% | 2651 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 92% | 53,795 psi | 85% | 2552 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 82% | 54,041 psi | 86% | 2543 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 53,867 psi | 85% | 2543 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 56,695 psi | 90% | 2618 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 54,998 psi | 87% | 2526 fps | 99.2% |
| Lovex S062 | <<locked>> | 98% | 53,780 psi | 85% | 2566 fps | 99.8% |
| Norma 200 | <<locked>> | 84% | 55,666 psi | 88% | 2497 fps | 100% |
| Norma 201 | <<locked>> | 96% | 56,304 psi | 89% | 2585 fps | 99.9% |
| Norma 202 | <<locked>> | 96% | 56,579 psi | 90% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,201 psi | 86% | 2608 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 98% | 54,375 psi | 86% | 2631 fps | 99.1% |
| Ramshot TAC | <<locked>> | 92% | 54,520 psi | 86% | 2562 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 56,942 psi | 90% | 2628 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,448 psi | 88% | 2556 fps | 99.1% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,867 psi | 85% | 2543 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 57,029 psi | 90% | 2602 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,665 psi | 87% | 2680 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,097 psi | 81% | 2657 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,215 psi | 86% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 56,782 psi | 90% | 2582 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,401 psi | 80% | 2552 fps | 99.2% |
| Shooters World AR Plus | <<locked>> | 82% | 54,041 psi | 86% | 2543 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 56,695 psi | 90% | 2618 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,780 psi | 85% | 2566 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,983 psi | 86% | 2516 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 56,768 psi | 90% | 2241 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 56,478 psi | 90% | 2585 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,359 psi | 83% | 2608 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 56,463 psi | 89% | 2536 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,941 psi | 89% | 2585 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 56,188 psi | 89% | 2612 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,622 psi | 88% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,795 psi | 87% | 2490 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,940 psi | 87% | 2585 fps | 99.9% |
| Somchem S335 | <<locked>> | 94% | 54,447 psi | 86% | 2497 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,303 psi | 88% | 2582 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,387 psi | 81% | 2556 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 2398 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 82% | 54,128 psi | 86% | 2398 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,637 psi | 88% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 55,317 psi | 88% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 55,419 psi | 88% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,664 psi | 85% | 2530 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,617 psi | 79% | 2497 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,584 psi | 69% | 2444 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 92% | 54,636 psi | 87% | 2556 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 98% | 55,201 psi | 87% | 2569 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,252 psi | 72% | 2444 fps | 98.2% |
| Winchester 748 | <<locked>> | 94% | 56,869 psi | 90% | 2641 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 55,608 psi | 88% | 2618 fps | 99.6% |
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 2015 | <<locked>> | 80% | 38,305 psi | 61% | 2267 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,385 psi | 78% | 2500 fps | 97.9% |
| Accurate 2230 | <<locked>> | 80% | 49,647 psi | 79% | 2507 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 41,452 psi | 66% | 2352 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 30,850 psi | 49% | 2178 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 36,724 psi | 58% | 2303 fps | 98.7% |
| Accurate 4064 | <<locked>> | 80% | 29,225 psi | 46% | 2159 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 80% | 46,847 psi | 74% | 2343 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,239 psi | 75% | 2359 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,128 psi | 56% | 2257 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 51,068 psi | 81% | 2405 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,290 psi | 61% | 2306 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 46,006 psi | 73% | 2438 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,115 psi | 59% | 2277 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 35,578 psi | 56% | 2287 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,540 psi | 67% | 2448 fps | 98% |
| Alliant Power Pro 2000-MR | 50.9 gr | 88% | 41,249 psi | 65% | 2464 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,561 psi | 52% | 2231 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,497 psi | 69% | 2356 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,855 psi | 60% | 2336 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,927 psi | 59% | 2385 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,938 psi | 82% | 2421 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,513 psi | 72% | 2339 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 41,336 psi | 66% | 2398 fps | 95.8% |
| Bofors RP3 | <<locked>> | 84% | 31,879 psi | 51% | 2228 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,247 psi | 62% | 2277 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,737 psi | 55% | 2283 fps | 97.2% |
| Hodgdon CFE223 | 47.3 gr | 80% | 38,290 psi | 61% | 2392 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 42,250 psi | 67% | 2379 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,786 psi | 68% | 2395 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 43,192 psi | 68% | 2425 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 51,590 psi | 82% | 2425 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 35,331 psi | 56% | 2270 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,679 psi | 57% | 2306 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,649 psi | 53% | 2280 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,338 psi | 40% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,214 psi | 54% | 2231 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 33,881 psi | 54% | 2277 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 37,898 psi | 60% | 2293 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 94% | 52,678 psi | 83% | 2500 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 44,483 psi | 71% | 2329 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 36,318 psi | 58% | 2316 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 37,115 psi | 59% | 2277 fps | 97.2% |
| Lovex D073.4 | <<locked>> | 80% | 50,285 psi | 80% | 2493 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 41,191 psi | 65% | 2352 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 33,011 psi | 52% | 2238 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 36,201 psi | 57% | 2215 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 30,937 psi | 49% | 2159 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 49,284 psi | 78% | 2415 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,606 psi | 55% | 2224 fps | 96.6% |
| Norma 202 | <<locked>> | 80% | 34,418 psi | 55% | 2241 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 34,838 psi | 55% | 2277 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 36,709 psi | 58% | 2333 fps | 95.3% |
| Ramshot TAC | <<locked>> | 86% | 44,933 psi | 71% | 2415 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,868 psi | 57% | 2283 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,219 psi | 64% | 2316 fps | 96.5% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,539 psi | 66% | 2356 fps | 99.2% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,227 psi | 80% | 2507 fps | 95.3% |
| ReloadSwiss RS 52 | 48.2 gr | 86% | 39,088 psi | 62% | 2421 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,472 psi | 48% | 2238 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 38,043 psi | 60% | 2274 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 32,750 psi | 52% | 2178 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 88% | 34,040 psi | 54% | 2267 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 50,285 psi | 80% | 2493 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,011 psi | 52% | 2238 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 30,937 psi | 49% | 2159 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,961 psi | 70% | 2369 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,169 psi | 81% | 2178 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,543 psi | 74% | 2448 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,766 psi | 57% | 2316 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,106 psi | 70% | 2369 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,714 psi | 68% | 2385 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,853 psi | 57% | 2274 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,172 psi | 57% | 2198 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,501 psi | 47% | 2077 fps | 98.3% |
| Somchem S321 | <<locked>> | 80% | 39,450 psi | 63% | 2343 fps | 98.1% |
| Somchem S335 | <<locked>> | 80% | 35,795 psi | 57% | 2208 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 36,927 psi | 59% | 2290 fps | 95.6% |
| Somchem S355 | <<locked>> | 86% | 33,156 psi | 53% | 2231 fps | 95.1% |
| Somchem S365 | <<locked>> | 94% | 30,530 psi | 48% | 2244 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 51,024 psi | 81% | 2359 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,147 psi | 65% | 2274 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,187 psi | 57% | 2205 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,328 psi | 50% | 2178 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 32,401 psi | 51% | 2182 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 29,646 psi | 47% | 2136 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 98% | 41,147 psi | 65% | 2402 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 36,927 psi | 59% | 2270 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 80% | 31,053 psi | 49% | 2165 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,853 psi | 55% | 2247 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 35,491 psi | 56% | 2300 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,808 psi | 52% | 2228 fps | 95% |
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 92 powders for .338-06 A-Square loaded with the .338 | 215gr | Sierra GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,684 fps. Accurate 4064 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 54–90 %, 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 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .338-06 A-Square 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.