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:1:13.5
Load data in caliber .338 Win Mag. with .338 | 225gr | CutEdge ESP Raptor bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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.
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% | 56,101 psi | 90% | 2552 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,273 psi | 87% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,882 psi | 86% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,837 psi | 85% | 2595 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,085 psi | 87% | 2582 fps | 97% |
| Accurate 4064 | <<locked>> | 92% | 53,954 psi | 87% | 2618 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,737 psi | 86% | 2697 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 55,274 psi | 89% | 2654 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 56,231 psi | 90% | 2654 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,505 psi | 87% | 2608 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,013 psi | 88% | 2582 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,217 psi | 90% | 2707 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,911 psi | 88% | 2769 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,912 psi | 90% | 2671 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,883 psi | 90% | 2556 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,200 psi | 85% | 2644 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,112 psi | 84% | 2703 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,185 psi | 85% | 2740 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,811 psi | 59% | 2454 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,886 psi | 66% | 2595 fps | 97.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,085 psi | 88% | 2671 fps | 99.8% |
| Bofors RP3 | <<locked>> | 94% | 56,434 psi | 90% | 2687 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,374 psi | 86% | 2612 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,231 psi | 90% | 2592 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,490 psi | 86% | 2638 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,709 psi | 89% | 2733 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,172 psi | 88% | 2602 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,985 psi | 90% | 2625 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,215 psi | 87% | 2654 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 98% | 53,447 psi | 86% | 2700 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 96% | 54,578 psi | 88% | 2664 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 55,811 psi | 89% | 2664 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,269 psi | 77% | 2589 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,201 psi | 89% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,201 psi | 87% | 2733 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 57% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,737 psi | 86% | 2621 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,608 psi | 89% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,927 psi | 90% | 2641 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,014 psi | 90% | 2621 fps | 98.1% |
| IMR 4198 | <<locked>> | 82% | 55,985 psi | 90% | 2516 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2638 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,405 psi | 89% | 2641 fps | 97.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,937 psi | 82% | 2641 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 54,563 psi | 87% | 2674 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,505 psi | 87% | 2608 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,346 psi | 87% | 2595 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,810 psi | 88% | 2631 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,042 psi | 88% | 2585 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,376 psi | 89% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,462 psi | 87% | 2635 fps | 98.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 2667 fps | 98.2% |
| Norma 201 | <<locked>> | 88% | 53,780 psi | 86% | 2598 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,360 psi | 87% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,782 psi | 89% | 2680 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 2680 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2690 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 52,910 psi | 85% | 2661 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2687 fps | 98.4% |
| Ramshot TAC | <<locked>> | 86% | 54,650 psi | 88% | 2628 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,273 psi | 87% | 2648 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,361 psi | 89% | 2612 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,578 psi | 57% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,925 psi | 86% | 2589 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,636 psi | 88% | 2638 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,592 psi | 86% | 2710 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 52,982 psi | 85% | 2740 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,563 psi | 86% | 2723 fps | 99.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2749 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 54,650 psi | 88% | 2579 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,360 psi | 87% | 2598 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,289 psi | 90% | 2677 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,374 psi | 86% | 2612 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,462 psi | 87% | 2635 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,810 psi | 88% | 2631 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,376 psi | 89% | 2631 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 2667 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,752 psi | 88% | 2690 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 52,852 psi | 85% | 2605 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,693 psi | 86% | 2628 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,666 psi | 89% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,854 psi | 90% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,781 psi | 88% | 2589 fps | 97.9% |
| Somchem S321 | <<locked>> | 84% | 55,593 psi | 89% | 2641 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,795 psi | 88% | 2543 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,217 psi | 90% | 2648 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 53,200 psi | 85% | 2628 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,500 psi | 76% | 2641 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,448 psi | 89% | 2507 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,912 psi | 90% | 2530 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,085 psi | 87% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,114 psi | 88% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,795 psi | 88% | 2612 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,796 psi | 89% | 2684 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 86% | 54,911 psi | 88% | 2608 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,084 psi | 85% | 2582 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,752 psi | 88% | 2694 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,798 psi | 64% | 2520 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 52,634 psi | 84% | 2621 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,592 psi | 88% | 2654 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,708 psi | 86% | 2700 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,764 psi | 53% | 2441 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,592 psi | 86% | 2638 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% | 46,514 psi | 75% | 2428 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,705 psi | 81% | 2533 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,783 psi | 62% | 2352 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,992 psi | 74% | 2500 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,282 psi | 76% | 2477 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 36,695 psi | 59% | 2349 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,837 psi | 53% | 2329 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,844 psi | 69% | 2457 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 36,347 psi | 58% | 2320 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,991 psi | 72% | 2467 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 45,092 psi | 72% | 2454 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,692 psi | 84% | 2657 fps | 100% |
| Alliant Power Pro 2000-MR | 56.4 gr | 80% | 38,914 psi | 62% | 2487 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,752 psi | 57% | 2336 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,431 psi | 84% | 2513 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,580 psi | 62% | 2398 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,663 psi | 54% | 2346 fps | 95.6% |
| Alliant Reloder-17 | 55.5 gr | 80% | 30,806 psi | 49% | 2303 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,674 psi | 46% | 2247 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,360 psi | 57% | 2470 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,974 psi | 67% | 2461 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 35,230 psi | 56% | 2339 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 44,179 psi | 71% | 2461 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,847 psi | 75% | 2457 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,598 psi | 70% | 2487 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,269 psi | 77% | 2621 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 51,459 psi | 83% | 2552 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,344 psi | 84% | 2575 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,303 psi | 58% | 2346 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 90% | 40,944 psi | 66% | 2487 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 47,921 psi | 77% | 2562 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,221 psi | 69% | 2467 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,703 psi | 46% | 2198 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,247 psi | 63% | 2444 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 43,627 psi | 70% | 2556 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 42% | 1411 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,539 psi | 67% | 2425 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 42,757 psi | 69% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,145 psi | 61% | 2349 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,584 psi | 70% | 2421 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 52,750 psi | 85% | 2474 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 44,266 psi | 71% | 2487 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,366 psi | 70% | 2448 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 31,981 psi | 51% | 2293 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,508 psi | 63% | 2425 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 44,991 psi | 72% | 2467 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 50,763 psi | 81% | 2546 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,626 psi | 67% | 2438 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,207 psi | 69% | 2405 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 38,043 psi | 61% | 2356 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 37,449 psi | 60% | 2343 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 40,321 psi | 65% | 2421 fps | 95% |
| Norma 201 | <<locked>> | 80% | 41,945 psi | 67% | 2415 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 42,148 psi | 68% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,927 psi | 61% | 2385 fps | 98.2% |
| Norma 204 | <<locked>> | 98% | 50,517 psi | 81% | 2625 fps | 95.2% |
| Norma URP | <<locked>> | 86% | 33,547 psi | 54% | 2336 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,536 psi | 60% | 2398 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 39,885 psi | 64% | 2474 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 44,715 psi | 72% | 2470 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,222 psi | 71% | 2490 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,646 psi | 78% | 2516 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,484 psi | 42% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,401 psi | 81% | 2539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,291 psi | 63% | 2379 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,350 psi | 65% | 2490 fps | 98.3% |
| ReloadSwiss RS 60 | 55.5 gr | 80% | 32,880 psi | 53% | 2369 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,172 psi | 56% | 2402 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,043 psi | 61% | 2464 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 45,730 psi | 73% | 2451 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,755 psi | 64% | 2369 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 33,025 psi | 53% | 2283 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 44,179 psi | 71% | 2461 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,449 psi | 60% | 2343 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,626 psi | 67% | 2438 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,043 psi | 61% | 2356 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 40,321 psi | 65% | 2421 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,200 psi | 55% | 2333 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,004 psi | 69% | 2448 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,321 psi | 66% | 2428 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,381 psi | 70% | 2372 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,926 psi | 58% | 2251 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,018 psi | 67% | 2392 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 48,457 psi | 78% | 2539 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,018 psi | 69% | 2375 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,714 psi | 68% | 2444 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 34,156 psi | 55% | 2297 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 26,092 psi | 42% | 2178 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 49,095 psi | 79% | 2428 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,714 psi | 70% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,204 psi | 63% | 2352 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,900 psi | 64% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,343 psi | 52% | 2238 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 32,750 psi | 53% | 2287 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,034 psi | 72% | 2464 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,464 psi | 62% | 2356 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 34,389 psi | 55% | 2336 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 92% | 30,487 psi | 49% | 2316 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,718 psi | 46% | 2165 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 44,570 psi | 71% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 40,944 psi | 66% | 2487 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,790 psi | 46% | 2320 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,785 psi | 65% | 2434 fps | 99.2% |
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 103 powders for .338 Win Mag. loaded with the .338 | 225gr | CutEdge ESP Raptor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,769 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,769 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:13.5 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .338 Win Mag. with the .338 | 225gr | CutEdge ESP Raptor 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.