Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:225 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Win Mag. load data
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:12.5
Load data in caliber .338 Win Mag. with .338 | 225gr | CutEdge Maximus bullet and 102 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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>> | 86% | 55,593 psi | 89% | 2543 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,809 psi | 86% | 2569 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,171 psi | 85% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,956 psi | 90% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,577 psi | 86% | 2569 fps | 96.9% |
| Accurate 4064 | <<locked>> | 92% | 53,229 psi | 85% | 2605 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,113 psi | 85% | 2687 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 54,607 psi | 88% | 2641 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 55,637 psi | 89% | 2641 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,824 psi | 86% | 2598 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,447 psi | 87% | 2572 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,666 psi | 89% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,331 psi | 87% | 2756 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,303 psi | 89% | 2657 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,317 psi | 89% | 2546 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,028 psi | 90% | 2680 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,358 psi | 82% | 2690 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,202 psi | 90% | 2779 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,245 psi | 58% | 2438 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,306 psi | 65% | 2579 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,476 psi | 87% | 2657 fps | 99.7% |
| Bofors RP3 | <<locked>> | 94% | 55,796 psi | 89% | 2674 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,304 psi | 90% | 2648 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,579 psi | 89% | 2579 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,866 psi | 85% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,752 psi | 88% | 2717 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 54,418 psi | 87% | 2589 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,593 psi | 89% | 2615 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,374 psi | 86% | 2638 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 52,692 psi | 84% | 2684 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 96% | 53,780 psi | 86% | 2651 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 88% | 55,187 psi | 88% | 2651 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,485 psi | 76% | 2572 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,302 psi | 87% | 2680 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,563 psi | 86% | 2720 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,114 psi | 56% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,084 psi | 85% | 2605 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,085 psi | 88% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,274 psi | 89% | 2625 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,463 psi | 89% | 2608 fps | 98% |
| IMR 4198 | <<locked>> | 82% | 55,695 psi | 89% | 2507 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,881 psi | 85% | 2621 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,926 psi | 88% | 2631 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,154 psi | 80% | 2628 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 53,896 psi | 86% | 2661 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 53,824 psi | 86% | 2598 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,650 psi | 86% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,128 psi | 87% | 2618 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,404 psi | 87% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 54,708 psi | 88% | 2621 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 53,940 psi | 86% | 2621 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,462 psi | 87% | 2651 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 53,345 psi | 86% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,911 psi | 86% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,129 psi | 88% | 2667 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2674 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 92% | 55,738 psi | 89% | 2694 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,300 psi | 82% | 2671 fps | 98.2% |
| Ramshot TAC | <<locked>> | 86% | 54,099 psi | 87% | 2615 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,664 psi | 86% | 2635 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,766 psi | 88% | 2598 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 57% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,214 psi | 85% | 2575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,824 psi | 86% | 2621 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,881 psi | 85% | 2694 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,970 psi | 90% | 2776 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,707 psi | 85% | 2707 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,895 psi | 85% | 2733 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 54,143 psi | 87% | 2569 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,679 psi | 86% | 2589 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,695 psi | 89% | 2667 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,304 psi | 90% | 2648 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,940 psi | 86% | 2621 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,128 psi | 87% | 2618 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,708 psi | 88% | 2621 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,462 psi | 87% | 2651 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,925 psi | 86% | 2677 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,985 psi | 90% | 2644 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,098 psi | 85% | 2615 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,245 psi | 89% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,201 psi | 89% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,346 psi | 87% | 2579 fps | 97.7% |
| Somchem S321 | <<locked>> | 84% | 54,969 psi | 88% | 2628 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,404 psi | 87% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,608 psi | 89% | 2638 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 56,072 psi | 90% | 2664 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,717 psi | 75% | 2628 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,926 psi | 88% | 2497 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,448 psi | 89% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,301 psi | 85% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,476 psi | 87% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,230 psi | 87% | 2598 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,230 psi | 89% | 2674 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 54,244 psi | 87% | 2595 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,883 psi | 90% | 2615 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,041 psi | 87% | 2677 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,247 psi | 63% | 2507 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2657 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,911 psi | 86% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 52,953 psi | 85% | 2687 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,300 psi | 52% | 2425 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,420 psi | 90% | 2671 fps | 100% |
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% | 45,992 psi | 74% | 2418 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,227 psi | 81% | 2523 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,072 psi | 61% | 2339 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,324 psi | 73% | 2484 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 46,789 psi | 75% | 2464 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 36,042 psi | 58% | 2333 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,271 psi | 52% | 2313 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 42,424 psi | 68% | 2448 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 35,955 psi | 58% | 2306 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,527 psi | 71% | 2457 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 44,512 psi | 71% | 2444 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,098 psi | 84% | 2644 fps | 100% |
| Alliant Power Pro 2000-MR | 55.7 gr | 80% | 38,377 psi | 62% | 2470 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,331 psi | 57% | 2326 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,851 psi | 83% | 2503 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,130 psi | 61% | 2385 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,185 psi | 53% | 2329 fps | 95.3% |
| Alliant Reloder-17 | 54.8 gr | 80% | 30,371 psi | 49% | 2287 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,110 psi | 48% | 2283 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,838 psi | 56% | 2454 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,582 psi | 67% | 2451 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 34,809 psi | 56% | 2326 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 46,499 psi | 75% | 2497 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,369 psi | 74% | 2448 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,989 psi | 69% | 2474 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,587 psi | 76% | 2608 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 50,966 psi | 82% | 2543 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,953 psi | 83% | 2569 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,723 psi | 57% | 2329 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 92% | 43,120 psi | 69% | 2526 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 92% | 47,413 psi | 76% | 2549 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 42,772 psi | 69% | 2457 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,384 psi | 46% | 2185 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,624 psi | 62% | 2428 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 94% | 46,325 psi | 74% | 2602 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 42% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,075 psi | 66% | 2411 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 42,206 psi | 68% | 2451 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,724 psi | 60% | 2336 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,004 psi | 69% | 2408 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 52,431 psi | 84% | 2467 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 46,615 psi | 75% | 2523 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 42,844 psi | 69% | 2434 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 33,663 psi | 54% | 2326 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 39,059 psi | 63% | 2415 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 44,527 psi | 71% | 2457 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 50,082 psi | 80% | 2533 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,162 psi | 66% | 2425 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,801 psi | 69% | 2392 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 37,608 psi | 60% | 2343 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 37,130 psi | 60% | 2333 fps | 95.1% |
| Lovex S070 | <<locked>> | 92% | 42,453 psi | 68% | 2457 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,263 psi | 66% | 2398 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 41,640 psi | 67% | 2408 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,521 psi | 60% | 2375 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 33,054 psi | 53% | 2320 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 36,985 psi | 59% | 2385 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 39,465 psi | 63% | 2461 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 44,411 psi | 71% | 2461 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,816 psi | 70% | 2480 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,051 psi | 77% | 2500 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,440 psi | 42% | 1444 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,937 psi | 80% | 2530 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,481 psi | 67% | 2418 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,856 psi | 64% | 2477 fps | 98.1% |
| ReloadSwiss RS 60 | 54.8 gr | 80% | 32,372 psi | 52% | 2352 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,679 psi | 56% | 2385 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,652 psi | 60% | 2451 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 45,223 psi | 73% | 2438 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,305 psi | 63% | 2356 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,619 psi | 52% | 2274 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 92% | 46,499 psi | 75% | 2497 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,130 psi | 60% | 2333 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,162 psi | 66% | 2425 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,608 psi | 60% | 2343 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 42,453 psi | 68% | 2457 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,837 psi | 54% | 2323 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,438 psi | 68% | 2434 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,930 psi | 66% | 2418 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,917 psi | 69% | 2359 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,491 psi | 57% | 2238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,570 psi | 71% | 2431 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 48,051 psi | 77% | 2530 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,366 psi | 68% | 2362 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,322 psi | 68% | 2434 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 33,591 psi | 54% | 2280 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 25,802 psi | 41% | 2169 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 48,602 psi | 78% | 2418 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,265 psi | 69% | 2356 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,667 psi | 62% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,450 psi | 63% | 2352 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,952 psi | 51% | 2224 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 34,621 psi | 56% | 2323 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 44,599 psi | 72% | 2454 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 37,884 psi | 61% | 2343 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 33,866 psi | 54% | 2323 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 94% | 32,082 psi | 51% | 2356 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,471 psi | 46% | 2156 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,918 psi | 70% | 2493 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 43,337 psi | 69% | 2530 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,168 psi | 48% | 2359 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,205 psi | 64% | 2421 fps | 99% |
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 102 powders for .338 Win Mag. loaded with the .338 | 225gr | CutEdge Maximus. Alliant Reloder-17 delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,779 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .338 Win Mag. with the .338 | 225gr | CutEdge Maximus 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.