Load Specifications
Load data in caliber .338-06 A-Square with .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC bullet and 100 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, Hodgdon CFE223 and ReloadSwiss RS 52.
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% | 56,260 psi | 89% | 2454 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,432 psi | 85% | 2493 fps | 98.7% |
| Accurate 2230 | <<locked>> | 82% | 54,056 psi | 86% | 2503 fps | 99.1% |
| Accurate 2460 | <<locked>> | 88% | 55,056 psi | 87% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 56,507 psi | 90% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 56,188 psi | 89% | 2533 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 55,796 psi | 88% | 2539 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,336 psi | 66% | 2398 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 86% | 56,985 psi | 90% | 2408 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,838 psi | 85% | 2385 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 55,216 psi | 88% | 2533 fps | 99.5% |
| ADI AR 2207 | <<locked>> | 82% | 54,998 psi | 87% | 2385 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,927 psi | 89% | 2523 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 86% | 57,029 psi | 90% | 2516 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,578 psi | 87% | 2493 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 92% | 53,795 psi | 85% | 2477 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 56,101 psi | 89% | 2589 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,636 psi | 87% | 2628 fps | 99% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,810 psi | 87% | 2543 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,521 psi | 90% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,854 psi | 89% | 2562 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,525 psi | 67% | 2408 fps | 96.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,689 psi | 77% | 2546 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,883 psi | 89% | 2402 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,666 psi | 88% | 2408 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,839 psi | 87% | 2546 fps | 98.7% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,303 psi | 88% | 2559 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,983 psi | 86% | 2444 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 56,898 psi | 90% | 2572 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,955 psi | 87% | 2605 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 88% | 55,637 psi | 88% | 2500 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 56,652 psi | 90% | 2526 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 56,971 psi | 90% | 2566 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 82% | 55,477 psi | 88% | 2408 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,637 psi | 88% | 2543 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,812 psi | 62% | 2310 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,751 psi | 85% | 2569 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,389 psi | 55% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,708 psi | 85% | 2500 fps | 99.6% |
| IMR 3031 | <<locked>> | 94% | 54,462 psi | 86% | 2530 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,564 psi | 88% | 2510 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 96% | 56,971 psi | 90% | 2497 fps | 96.3% |
| IMR 4198 | <<locked>> | 88% | 57,000 psi | 90% | 2425 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 39,871 psi | 63% | 2352 fps | 95.7% |
| IMR 4895 | <<locked>> | 96% | 54,012 psi | 86% | 2549 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 54,578 psi | 87% | 2493 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 82% | 55,027 psi | 87% | 2490 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,824 psi | 87% | 2487 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,853 psi | 85% | 2513 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,695 psi | 88% | 2470 fps | 99.5% |
| Lovex S062 | <<locked>> | 98% | 54,694 psi | 87% | 2510 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,355 psi | 75% | 2405 fps | 95.9% |
| Norma 200 | <<locked>> | 84% | 56,420 psi | 89% | 2438 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,853 psi | 85% | 2487 fps | 99.9% |
| Norma 202 | <<locked>> | 94% | 54,230 psi | 86% | 2493 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,940 psi | 87% | 2552 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 42,134 psi | 67% | 2398 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 98% | 55,390 psi | 88% | 2579 fps | 99.4% |
| Ramshot TAC | <<locked>> | 92% | 55,506 psi | 88% | 2510 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,244 psi | 86% | 2526 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 90% | 56,304 psi | 89% | 2500 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,505 psi | 55% | 1506 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,520 psi | 86% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 54,331 psi | 86% | 2503 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 55,550 psi | 88% | 2621 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,054 psi | 83% | 2605 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 55,143 psi | 87% | 2474 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 54,085 psi | 86% | 2480 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,256 psi | 81% | 2500 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 82% | 55,027 psi | 87% | 2490 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,355 psi | 75% | 2405 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,853 psi | 85% | 2513 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,694 psi | 87% | 2510 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,650 psi | 87% | 2457 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,476 psi | 86% | 2152 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,722 psi | 85% | 2484 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,272 psi | 84% | 2556 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,201 psi | 86% | 2438 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 56,782 psi | 90% | 2533 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 56,927 psi | 90% | 2552 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 56,536 psi | 90% | 2441 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,651 psi | 88% | 2434 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,927 psi | 89% | 2530 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 55,172 psi | 87% | 2438 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 56,173 psi | 89% | 2530 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2500 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,449 psi | 59% | 2352 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 82% | 54,868 psi | 87% | 2336 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,492 psi | 90% | 2415 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 56,231 psi | 89% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 56,362 psi | 89% | 2493 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,578 psi | 87% | 2474 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,357 psi | 80% | 2444 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,570 psi | 71% | 2402 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 92% | 55,434 psi | 88% | 2500 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 98% | 56,376 psi | 89% | 2516 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,207 psi | 68% | 2402 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,818 psi | 73% | 2392 fps | 98.6% |
| Winchester 748 | <<locked>> | 92% | 54,012 psi | 86% | 2536 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 56,550 psi | 90% | 2562 fps | 99.8% |
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 2015 | <<locked>> | 80% | 38,928 psi | 62% | 2215 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,024 psi | 79% | 2444 fps | 98.3% |
| Accurate 2230 | <<locked>> | 80% | 50,546 psi | 80% | 2454 fps | 98.6% |
| Accurate 2460 | <<locked>> | 80% | 42,090 psi | 67% | 2300 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 31,314 psi | 50% | 2129 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,434 psi | 59% | 2257 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 29,660 psi | 47% | 2113 fps | 98.2% |
| Accurate 4350 | <<locked>> | 98% | 38,479 psi | 61% | 2349 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 47,471 psi | 75% | 2287 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,863 psi | 76% | 2306 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,781 psi | 57% | 2215 fps | 95.8% |
| ADI AR 2207 | <<locked>> | 80% | 51,735 psi | 82% | 2346 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 36,695 psi | 58% | 2215 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 46,963 psi | 74% | 2388 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,768 psi | 60% | 2231 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 36,289 psi | 58% | 2238 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,410 psi | 69% | 2398 fps | 98.5% |
| Alliant Power Pro 2000-MR | 48.6 gr | 86% | 39,073 psi | 62% | 2362 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,169 psi | 49% | 2142 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,382 psi | 70% | 2303 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,100 psi | 57% | 2241 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,103 psi | 64% | 2362 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,128 psi | 56% | 2290 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,678 psi | 83% | 2362 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,151 psi | 73% | 2287 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,436 psi | 63% | 2303 fps | 95.6% |
| Bofors RP3 | <<locked>> | 82% | 30,356 psi | 48% | 2136 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,827 psi | 63% | 2228 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,360 psi | 56% | 2234 fps | 97.7% |
| Hodgdon CFE223 | 46.3 gr | 80% | 38,957 psi | 62% | 2346 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 80% | 42,786 psi | 68% | 2323 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,497 psi | 69% | 2346 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,118 psi | 65% | 2329 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 52,272 psi | 83% | 2365 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 36,027 psi | 57% | 2224 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,243 psi | 54% | 2218 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,111 psi | 51% | 2188 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,469 psi | 40% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,635 psi | 55% | 2182 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 34,534 psi | 55% | 2231 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,230 psi | 57% | 2201 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 94% | 53,461 psi | 85% | 2448 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 45,223 psi | 72% | 2274 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 37,594 psi | 60% | 2310 fps | 95% |
| IMR 4895 | <<locked>> | 82% | 34,548 psi | 55% | 2221 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 37,768 psi | 60% | 2231 fps | 97.7% |
| Lovex D073.4 | <<locked>> | 80% | 51,140 psi | 81% | 2438 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 41,930 psi | 66% | 2303 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 33,808 psi | 54% | 2195 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 36,753 psi | 58% | 2169 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 31,517 psi | 50% | 2116 fps | 95.9% |
| Lovex S065 | <<locked>> | 98% | 44,686 psi | 71% | 2362 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 49,777 psi | 79% | 2356 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,983 psi | 55% | 2175 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 35,027 psi | 56% | 2195 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 33,156 psi | 53% | 2185 fps | 95% |
| Norma URP | <<locked>> | 98% | 39,711 psi | 63% | 2352 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 34,998 psi | 55% | 2238 fps | 95.2% |
| Ramshot TAC | <<locked>> | 86% | 45,585 psi | 72% | 2365 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,506 psi | 58% | 2241 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,828 psi | 65% | 2267 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 41% | 1345 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,308 psi | 67% | 2306 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,805 psi | 76% | 2408 fps | 95.1% |
| ReloadSwiss RS 52 | 46 gr | 84% | 37,101 psi | 59% | 2320 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,153 psi | 46% | 2149 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 38,653 psi | 61% | 2224 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 33,301 psi | 53% | 2133 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 86% | 32,663 psi | 52% | 2182 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 51,140 psi | 81% | 2438 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,686 psi | 71% | 2362 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,808 psi | 54% | 2195 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 31,517 psi | 50% | 2116 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,614 psi | 71% | 2316 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,953 psi | 82% | 2123 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,282 psi | 75% | 2395 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,289 psi | 58% | 2270 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,063 psi | 71% | 2316 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 43,395 psi | 69% | 2339 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,374 psi | 54% | 2185 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,956 psi | 59% | 2156 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,168 psi | 48% | 2037 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 40,132 psi | 64% | 2297 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 36,158 psi | 57% | 2156 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 35,056 psi | 56% | 2195 fps | 95.4% |
| Somchem S355 | <<locked>> | 84% | 31,734 psi | 50% | 2146 fps | 95% |
| Somchem S365 | <<locked>> | 94% | 31,082 psi | 49% | 2205 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 80% | 51,677 psi | 82% | 2300 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,974 psi | 67% | 2224 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,985 psi | 59% | 2159 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,111 psi | 51% | 2136 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,011 psi | 52% | 2136 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 28,355 psi | 45% | 2051 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 96% | 39,291 psi | 62% | 2310 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,434 psi | 59% | 2221 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 31,734 psi | 50% | 2126 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 98% | 40,756 psi | 65% | 2359 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,491 psi | 56% | 2205 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 36,303 psi | 58% | 2257 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,330 psi | 53% | 2185 fps | 95.7% |
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 100 powders for .338-06 A-Square loaded with the .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,628 fps; across all powders the maximum-charge window runs from 1,473 fps to 2,628 fps. Accurate 4064 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, 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. Alliant Power Pro 2000-MR, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for .338-06 A-Square with the .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC 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.