Load Specifications
Load data in caliber .338-06 A-Square with .338 | 210gr | Swift Scirocco bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Alliant Power Pro 2000-MR.
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>> | 82% | 55,172 psi | 87% | 2444 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 54,592 psi | 87% | 2510 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 55,912 psi | 89% | 2595 fps | 98.2% |
| Accurate 2230 | <<locked>> | 86% | 56,826 psi | 90% | 2608 fps | 98.6% |
| Accurate 2460 | <<locked>> | 92% | 57,087 psi | 90% | 2579 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 2559 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 54,418 psi | 86% | 2585 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,995 psi | 79% | 2546 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 56,246 psi | 89% | 2470 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 56,681 psi | 90% | 2490 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 53,751 psi | 85% | 2582 fps | 98.7% |
| ADI AR 2207 | <<locked>> | 84% | 53,911 psi | 85% | 2451 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,256 psi | 81% | 2523 fps | 97.6% |
| ADI AR 2219 | <<locked>> | 88% | 55,753 psi | 88% | 2579 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 56,797 psi | 90% | 2592 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 96% | 55,361 psi | 88% | 2579 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 54,433 psi | 86% | 2641 fps | 99.2% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 56,927 psi | 90% | 2720 fps | 98.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 49,661 psi | 79% | 2543 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 90% | 55,085 psi | 87% | 2523 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 53,998 psi | 86% | 2605 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,034 psi | 70% | 2523 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 84% | 55,042 psi | 87% | 2467 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 54,955 psi | 87% | 2470 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 56,768 psi | 90% | 2638 fps | 98.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 49,530 psi | 79% | 2552 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 94% | 56,014 psi | 89% | 2539 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 96% | 54,955 psi | 87% | 2621 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 94% | 57,014 psi | 90% | 2703 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 90% | 53,983 psi | 86% | 2556 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 55,477 psi | 88% | 2585 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 51,561 psi | 82% | 2556 fps | 96.6% |
| Hodgdon H4198 | <<locked>> | 84% | 54,897 psi | 87% | 2470 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 54,114 psi | 86% | 2592 fps | 99.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 55,477 psi | 88% | 2661 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,823 psi | 54% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 55,651 psi | 88% | 2595 fps | 99.2% |
| IMR 3031 | <<locked>> | 98% | 55,840 psi | 89% | 2628 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 2556 fps | 98.3% |
| IMR 4198 | <<locked>> | 90% | 55,753 psi | 88% | 2487 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 55,317 psi | 88% | 2638 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 96% | 56,797 psi | 90% | 2592 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 84% | 53,563 psi | 85% | 2543 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 90% | 53,461 psi | 85% | 2543 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 98% | 55,361 psi | 88% | 2608 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 56,652 psi | 90% | 2392 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 54,578 psi | 87% | 2520 fps | 98.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 52,808 psi | 84% | 2552 fps | 99.4% |
| Norma 200 | <<locked>> | 86% | 55,230 psi | 88% | 2500 fps | 100% |
| Norma 201 | <<locked>> | 98% | 55,651 psi | 88% | 2579 fps | 99.6% |
| Norma 202 | <<locked>> | 98% | 55,927 psi | 89% | 2589 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 52,982 psi | 84% | 2595 fps | 98.6% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 53,708 psi | 85% | 2618 fps | 98.5% |
| Ramshot TAC | <<locked>> | 94% | 54,172 psi | 86% | 2552 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 96% | 56,101 psi | 89% | 2618 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 55,201 psi | 87% | 2552 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,866 psi | 54% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 56,753 psi | 90% | 2585 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 53,330 psi | 85% | 2661 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,065 psi | 75% | 2589 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 96% | 56,782 psi | 90% | 2569 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 55,912 psi | 89% | 2572 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,006 psi | 73% | 2490 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 84% | 53,563 psi | 85% | 2543 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 98% | 55,361 psi | 88% | 2608 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 52,808 psi | 84% | 2552 fps | 99.4% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 53,766 psi | 85% | 2513 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 56,927 psi | 90% | 2247 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 56,376 psi | 89% | 2589 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,254 psi | 76% | 2546 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 56,159 psi | 89% | 2539 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 55,434 psi | 88% | 2575 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 55,274 psi | 88% | 2598 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 55,288 psi | 88% | 2493 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 50,807 psi | 81% | 2448 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 54,520 psi | 86% | 2582 fps | 99.6% |
| Somchem S335 | <<locked>> | 96% | 53,824 psi | 85% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 54,476 psi | 86% | 2572 fps | 98.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 47,166 psi | 75% | 2497 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 84% | 53,867 psi | 85% | 2405 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 55,347 psi | 88% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 54,824 psi | 87% | 2487 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 54,056 psi | 86% | 2549 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 56,449 psi | 89% | 2569 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 45,556 psi | 72% | 2441 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 94% | 54,085 psi | 86% | 2549 fps | 99.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 54,317 psi | 86% | 2566 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,829 psi | 66% | 2375 fps | 96.5% |
| Winchester 748 | <<locked>> | 96% | 55,956 psi | 89% | 2635 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 98% | 54,766 psi | 87% | 2608 fps | 99.2% |
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% | 51,634 psi | 82% | 2402 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,621 psi | 56% | 2224 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 46,064 psi | 73% | 2444 fps | 96.5% |
| Accurate 2230 | <<locked>> | 80% | 46,050 psi | 73% | 2451 fps | 96.9% |
| Accurate 2460 | <<locked>> | 80% | 38,203 psi | 61% | 2300 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 28,036 psi | 44% | 2126 fps | 98.9% |
| Accurate 2520 | <<locked>> | 80% | 33,620 psi | 53% | 2247 fps | 97.4% |
| Accurate 4064 | <<locked>> | 80% | 26,585 psi | 42% | 2103 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 80% | 44,034 psi | 70% | 2303 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 44,411 psi | 70% | 2316 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 39,262 psi | 62% | 2346 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 47,819 psi | 76% | 2372 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 40,219 psi | 64% | 2343 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 42,743 psi | 68% | 2395 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,592 psi | 55% | 2224 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,663 psi | 52% | 2241 fps | 100% |
| Alliant Power Pro 1200-R | 41.1 gr | 80% | 39,421 psi | 62% | 2392 fps | 96.6% |
| Alliant Power Pro 2000-MR | 50.3 gr | 92% | 43,555 psi | 69% | 2500 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 33,968 psi | 54% | 2267 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,495 psi | 64% | 2316 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 39,523 psi | 63% | 2372 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 38,783 psi | 61% | 2418 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,689 psi | 77% | 2385 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,714 psi | 68% | 2300 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 43,700 psi | 69% | 2441 fps | 95.5% |
| Bofors RP3 | <<locked>> | 88% | 33,257 psi | 53% | 2264 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,796 psi | 58% | 2231 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,879 psi | 51% | 2224 fps | 95.5% |
| Hodgdon CFE223 | 47 gr | 84% | 40,553 psi | 64% | 2434 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 39,044 psi | 62% | 2329 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 39,610 psi | 63% | 2349 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 96% | 45,194 psi | 72% | 2457 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 48,530 psi | 77% | 2385 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 34,925 psi | 55% | 2264 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 35,331 psi | 56% | 2316 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,961 psi | 40% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 36,071 psi | 57% | 2270 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 31,314 psi | 50% | 2228 fps | 98.9% |
| IMR 4064 | <<locked>> | 90% | 39,653 psi | 63% | 2326 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 41,727 psi | 66% | 2293 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 38,000 psi | 60% | 2356 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 34,592 psi | 55% | 2224 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 46,615 psi | 74% | 2444 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 37,840 psi | 60% | 2297 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 30,226 psi | 48% | 2182 fps | 96.2% |
| Lovex S053 | <<locked>> | 80% | 53,577 psi | 85% | 2356 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 38,218 psi | 61% | 2254 fps | 95.3% |
| Lovex S062 | <<locked>> | 84% | 32,343 psi | 51% | 2195 fps | 95% |
| Norma 200 | <<locked>> | 80% | 45,963 psi | 73% | 2379 fps | 100% |
| Norma 201 | <<locked>> | 82% | 34,113 psi | 54% | 2218 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 31,763 psi | 50% | 2188 fps | 97.4% |
| Norma 203B | <<locked>> | 90% | 38,769 psi | 61% | 2362 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 90% | 38,653 psi | 61% | 2369 fps | 95% |
| Ramshot TAC | <<locked>> | 92% | 50,778 psi | 80% | 2503 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 37,898 psi | 60% | 2326 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,016 psi | 63% | 2313 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,135 psi | 40% | 1375 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,856 psi | 62% | 2310 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 40,944 psi | 65% | 2457 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 32,140 psi | 51% | 2277 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 35,491 psi | 56% | 2228 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 34,476 psi | 55% | 2218 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 92% | 35,375 psi | 56% | 2303 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 46,615 psi | 74% | 2444 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,226 psi | 48% | 2182 fps | 96.2% |
| Shooters World Precision | <<locked>> | 84% | 32,343 psi | 51% | 2195 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,915 psi | 65% | 2316 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,863 psi | 77% | 2156 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,265 psi | 69% | 2402 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 39,871 psi | 63% | 2402 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,133 psi | 65% | 2326 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 48,341 psi | 77% | 2477 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 37,898 psi | 60% | 2316 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,837 psi | 54% | 2156 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,412 psi | 43% | 2031 fps | 96.9% |
| Somchem S321 | <<locked>> | 80% | 36,579 psi | 58% | 2290 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 33,344 psi | 53% | 2162 fps | 98.5% |
| Somchem S341 | <<locked>> | 86% | 38,957 psi | 62% | 2329 fps | 95.4% |
| Somchem S355 | <<locked>> | 92% | 36,840 psi | 58% | 2313 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 47,805 psi | 76% | 2329 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,493 psi | 61% | 2238 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,736 psi | 53% | 2165 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 28,776 psi | 46% | 2133 fps | 99% |
| Vihtavuori N140 | <<locked>> | 80% | 29,950 psi | 47% | 2133 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 88% | 31,009 psi | 49% | 2172 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 34,214 psi | 54% | 2218 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 28,848 psi | 46% | 2119 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,218 psi | 62% | 2326 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 32,938 psi | 52% | 2247 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 36,753 psi | 58% | 2316 fps | 95.6% |
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 90 powders for .338-06 A-Square loaded with the .338 | 210gr | Swift Scirocco. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,720 fps. Accurate 2495 gives the best case fill at 100 %, and 90 of the 90 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 210.0 gr projectile in 0.338" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Alliant Power Pro 2000-MR rank at the top here: for .338-06 A-Square with the .338 | 210gr | Swift Scirocco 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.