Load Specifications
Bullet Manufacturer:North Fork
Bullet Weight:225 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338-06 A-Square load data
Case Length (l3):2.494"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:69 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,091 psi
Recommended Twist Rate:1:15.0
Load data in caliber .338-06 A-Square with .338 | 225gr | NorthFork Bonded Core bullet and 99 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.
A valid access license is required to use the Personalized Load Calculator.
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% | 56,057 psi | 89% | 2448 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 56,826 psi | 90% | 2536 fps | 99.1% |
| Accurate 2230 | <<locked>> | 82% | 53,766 psi | 85% | 2497 fps | 99% |
| Accurate 2460 | <<locked>> | 88% | 54,795 psi | 87% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 56,246 psi | 89% | 2503 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 55,956 psi | 89% | 2526 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 55,564 psi | 88% | 2536 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,147 psi | 65% | 2395 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 86% | 56,724 psi | 90% | 2405 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,896 psi | 85% | 2385 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,984 psi | 87% | 2530 fps | 99.4% |
| ADI AR 2207 | <<locked>> | 82% | 54,665 psi | 87% | 2379 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 55,738 psi | 88% | 2520 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 84% | 53,432 psi | 85% | 2470 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 54,346 psi | 86% | 2490 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 53,766 psi | 85% | 2477 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 55,883 psi | 89% | 2582 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 54,389 psi | 86% | 2625 fps | 98.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,592 psi | 87% | 2539 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,188 psi | 89% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 55,651 psi | 88% | 2559 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,366 psi | 67% | 2402 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,530 psi | 77% | 2543 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,608 psi | 88% | 2395 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 55,477 psi | 88% | 2405 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 54,621 psi | 87% | 2543 fps | 98.7% |
| Bofors RP3ᴾ | <<locked>> | 100% | 55,100 psi | 87% | 2556 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 92% | 56,913 psi | 90% | 2480 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 56,347 psi | 89% | 2562 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,737 psi | 87% | 2602 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 88% | 55,434 psi | 88% | 2497 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 56,405 psi | 89% | 2520 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 56,797 psi | 90% | 2562 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 82% | 55,506 psi | 88% | 2408 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 55,405 psi | 88% | 2539 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,653 psi | 61% | 2306 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,548 psi | 85% | 2562 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,287 psi | 54% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 57,058 psi | 90% | 2543 fps | 99.8% |
| IMR 3031 | <<locked>> | 94% | 54,172 psi | 86% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 55,347 psi | 88% | 2507 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 96% | 56,782 psi | 90% | 2490 fps | 96.2% |
| IMR 4198 | <<locked>> | 88% | 56,724 psi | 90% | 2418 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 57,058 psi | 90% | 2589 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 92% | 54,346 psi | 86% | 2490 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 82% | 54,737 psi | 87% | 2484 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,578 psi | 87% | 2484 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,621 psi | 85% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 55,796 psi | 88% | 2470 fps | 99.4% |
| Lovex S062 | <<locked>> | 98% | 54,462 psi | 86% | 2503 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,181 psi | 75% | 2398 fps | 95.8% |
| Norma 200 | <<locked>> | 84% | 56,405 psi | 89% | 2434 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,693 psi | 85% | 2480 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 53,983 psi | 86% | 2490 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,723 psi | 87% | 2549 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 41,974 psi | 67% | 2392 fps | 96% |
| Ramshot Big Game | <<locked>> | 98% | 55,245 psi | 88% | 2572 fps | 99.4% |
| Ramshot TAC | <<locked>> | 92% | 55,332 psi | 88% | 2507 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,041 psi | 86% | 2523 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 90% | 56,115 psi | 89% | 2497 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,679 psi | 55% | 1506 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,302 psi | 86% | 2480 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 54,172 psi | 86% | 2497 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 55,317 psi | 88% | 2618 fps | 99.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,837 psi | 82% | 2602 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,853 psi | 87% | 2470 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,853 psi | 85% | 2474 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,966 psi | 81% | 2493 fps | 99.4% |
| Shooters World AR Plus | <<locked>> | 82% | 54,737 psi | 87% | 2484 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,181 psi | 75% | 2398 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,621 psi | 85% | 2510 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 54,462 psi | 86% | 2503 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 54,447 psi | 86% | 2454 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,491 psi | 86% | 2149 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,795 psi | 85% | 2480 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,069 psi | 84% | 2552 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,911 psi | 85% | 2434 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 56,565 psi | 90% | 2526 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 56,739 psi | 90% | 2549 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 56,333 psi | 89% | 2438 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 55,434 psi | 88% | 2431 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 55,709 psi | 88% | 2526 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 54,940 psi | 87% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 55,985 psi | 89% | 2523 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,837 psi | 82% | 2493 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,318 psi | 59% | 2346 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 54,578 psi | 87% | 2333 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,188 psi | 89% | 2411 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 56,043 psi | 89% | 2425 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 56,086 psi | 89% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 54,360 psi | 86% | 2467 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2441 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,338 psi | 70% | 2395 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 92% | 55,201 psi | 87% | 2493 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 98% | 55,840 psi | 89% | 2510 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,062 psi | 68% | 2398 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,701 psi | 72% | 2388 fps | 98.5% |
| Winchester 748 | <<locked>> | 92% | 53,780 psi | 85% | 2533 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 96% | 56,362 psi | 89% | 2559 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% | 2211 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,719 psi | 79% | 2438 fps | 98.2% |
| Accurate 2230 | <<locked>> | 80% | 50,241 psi | 80% | 2451 fps | 98.6% |
| Accurate 2460 | <<locked>> | 80% | 41,887 psi | 66% | 2293 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 31,314 psi | 50% | 2129 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,202 psi | 59% | 2251 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 29,631 psi | 47% | 2110 fps | 98.2% |
| Accurate 4350 | <<locked>> | 98% | 38,261 psi | 61% | 2343 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 47,210 psi | 75% | 2283 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,587 psi | 75% | 2300 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,592 psi | 56% | 2208 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 51,430 psi | 82% | 2339 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 36,463 psi | 58% | 2211 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 46,673 psi | 74% | 2382 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,579 psi | 60% | 2224 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,042 psi | 57% | 2231 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,134 psi | 68% | 2392 fps | 98.4% |
| Alliant Power Pro 2000-MR | 48.4 gr | 86% | 38,899 psi | 62% | 2356 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,154 psi | 49% | 2139 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,106 psi | 70% | 2297 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,926 psi | 57% | 2234 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,958 psi | 63% | 2356 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,983 psi | 55% | 2283 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,373 psi | 83% | 2356 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,977 psi | 73% | 2283 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,247 psi | 62% | 2297 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 30,197 psi | 48% | 2133 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,842 psi | 63% | 2224 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,404 psi | 56% | 2234 fps | 97.7% |
| Hodgdon CFE223 | 46.1 gr | 80% | 38,798 psi | 61% | 2339 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 80% | 42,801 psi | 68% | 2323 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,236 psi | 69% | 2339 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 40,988 psi | 65% | 2323 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 51,982 psi | 82% | 2362 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 35,795 psi | 57% | 2218 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,084 psi | 54% | 2211 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,937 psi | 51% | 2182 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,570 psi | 41% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,650 psi | 55% | 2178 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 34,534 psi | 55% | 2228 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,042 psi | 57% | 2195 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 94% | 53,258 psi | 84% | 2444 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 44,933 psi | 71% | 2270 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 34,577 psi | 55% | 2221 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 37,579 psi | 60% | 2224 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 80% | 50,865 psi | 81% | 2434 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 41,698 psi | 66% | 2297 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 33,591 psi | 53% | 2192 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 36,753 psi | 58% | 2165 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 31,517 psi | 50% | 2116 fps | 95.9% |
| Lovex S065 | <<locked>> | 98% | 44,498 psi | 71% | 2356 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 49,806 psi | 79% | 2356 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,969 psi | 55% | 2175 fps | 97% |
| Norma 202 | <<locked>> | 80% | 34,809 psi | 55% | 2188 fps | 99% |
| Norma 203B | <<locked>> | 84% | 35,244 psi | 56% | 2228 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 39,552 psi | 63% | 2349 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 34,809 psi | 55% | 2234 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 45,382 psi | 72% | 2359 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,289 psi | 58% | 2234 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,872 psi | 65% | 2267 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,585 psi | 41% | 1342 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,090 psi | 67% | 2300 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,630 psi | 75% | 2402 fps | 95% |
| ReloadSwiss RS 52 | 45.9 gr | 84% | 37,101 psi | 59% | 2320 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,979 psi | 46% | 2142 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 38,609 psi | 61% | 2224 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 33,315 psi | 53% | 2133 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 86% | 32,445 psi | 51% | 2175 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 50,865 psi | 81% | 2434 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,498 psi | 71% | 2356 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,591 psi | 53% | 2192 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 31,517 psi | 50% | 2116 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,672 psi | 71% | 2316 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,619 psi | 82% | 2116 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,021 psi | 75% | 2388 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,114 psi | 57% | 2267 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,788 psi | 71% | 2313 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 43,178 psi | 68% | 2333 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,185 psi | 54% | 2178 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,724 psi | 58% | 2149 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,950 psi | 47% | 2031 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 39,958 psi | 63% | 2290 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 36,172 psi | 57% | 2156 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 34,867 psi | 55% | 2188 fps | 95.3% |
| Somchem S355 | <<locked>> | 84% | 31,763 psi | 50% | 2142 fps | 95% |
| Somchem S365 | <<locked>> | 94% | 30,951 psi | 49% | 2201 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 51,372 psi | 81% | 2297 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,727 psi | 66% | 2218 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,724 psi | 58% | 2156 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,894 psi | 51% | 2129 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 32,808 psi | 52% | 2133 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 28,195 psi | 45% | 2044 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 98% | 41,553 psi | 66% | 2349 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 37,449 psi | 59% | 2221 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 31,546 psi | 50% | 2119 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 98% | 40,364 psi | 64% | 2349 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,157 psi | 56% | 2198 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 36,129 psi | 57% | 2251 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,141 psi | 53% | 2178 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 99 powders for .338-06 A-Square loaded with the .338 | 225gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,625 fps. Accurate 4064 gives the best case fill at 100 %, and 99 of the 99 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 225.0 gr projectile in 0.338" calls for a 1:15.0 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 | NorthFork Bonded Core 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.