Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:206 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 | 206gr | Peregrine VLR-5 bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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>> | 88% | 56,130 psi | 90% | 2677 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,563 psi | 87% | 2703 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,606 psi | 86% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 56,420 psi | 90% | 2762 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 54,418 psi | 87% | 2690 fps | 96% |
| Accurate 4064 | <<locked>> | 94% | 53,476 psi | 86% | 2736 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,327 psi | 79% | 2749 fps | 98.6% |
| Accurate LT-30 | <<locked>> | 82% | 55,521 psi | 89% | 2625 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,941 psi | 90% | 2648 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,376 psi | 89% | 2772 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 56,362 psi | 90% | 2769 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,665 psi | 88% | 2730 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 54,621 psi | 88% | 2703 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,304 psi | 90% | 2831 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,868 psi | 88% | 2884 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,695 psi | 89% | 2789 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,854 psi | 90% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,055 psi | 85% | 2759 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,660 psi | 78% | 2759 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,866 psi | 85% | 2854 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,171 psi | 55% | 2487 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,795 psi | 88% | 2621 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,100 psi | 88% | 2789 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 56,318 psi | 90% | 2805 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 53,345 psi | 86% | 2717 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,359 psi | 86% | 2671 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 53,505 psi | 86% | 2756 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,579 psi | 89% | 2851 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 55,201 psi | 89% | 2723 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,347 psi | 90% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,012 psi | 87% | 2766 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,098 psi | 85% | 2805 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 90% | 55,883 psi | 90% | 2785 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,759 psi | 72% | 2641 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,781 psi | 88% | 2812 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,476 psi | 87% | 2841 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 56% | 1654 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,867 psi | 86% | 2740 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 55,521 psi | 89% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,767 psi | 89% | 2753 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,347 psi | 90% | 2736 fps | 97.3% |
| IMR 4198 | <<locked>> | 84% | 56,318 psi | 90% | 2644 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 55,492 psi | 89% | 2753 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,065 psi | 75% | 2694 fps | 98.3% |
| IMR 4895 | <<locked>> | 92% | 54,447 psi | 87% | 2792 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 54,665 psi | 88% | 2730 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,578 psi | 88% | 2717 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 54,549 psi | 87% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,477 psi | 89% | 2707 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 55,100 psi | 88% | 2746 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,259 psi | 87% | 2743 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 51,561 psi | 83% | 2720 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 53,925 psi | 86% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 90% | 54,418 psi | 87% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,593 psi | 89% | 2799 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 49,139 psi | 79% | 2743 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 94% | 56,376 psi | 90% | 2825 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,341 psi | 78% | 2736 fps | 96.8% |
| Ramshot TAC | <<locked>> | 88% | 54,955 psi | 88% | 2743 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,375 psi | 87% | 2762 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,782 psi | 89% | 2733 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,259 psi | 57% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,230 psi | 87% | 2713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,766 psi | 88% | 2749 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,142 psi | 85% | 2822 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,779 psi | 85% | 2858 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,110 psi | 79% | 2769 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,995 psi | 80% | 2795 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 54,679 psi | 88% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,230 psi | 87% | 2713 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 55,941 psi | 90% | 2792 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 53,345 psi | 86% | 2717 fps | 96.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,259 psi | 87% | 2743 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,549 psi | 87% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,100 psi | 88% | 2746 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 51,561 psi | 83% | 2720 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,809 psi | 86% | 2684 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,549 psi | 87% | 2808 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,693 psi | 86% | 2661 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,968 psi | 85% | 2717 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,679 psi | 86% | 2746 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,927 psi | 90% | 2664 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,854 psi | 90% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,085 psi | 88% | 2700 fps | 97% |
| Somchem S321 | <<locked>> | 86% | 55,854 psi | 90% | 2766 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,042 psi | 88% | 2664 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,318 psi | 90% | 2766 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 53,011 psi | 85% | 2743 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,758 psi | 70% | 2694 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 55,753 psi | 89% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,028 psi | 90% | 2651 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 53,780 psi | 86% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,897 psi | 88% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,621 psi | 88% | 2726 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,764 psi | 83% | 2743 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 55,172 psi | 88% | 2730 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 52,997 psi | 85% | 2700 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,821 psi | 81% | 2749 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,376 psi | 58% | 2556 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,779 psi | 85% | 2733 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 54,650 psi | 88% | 2776 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,098 psi | 85% | 2805 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 53,374 psi | 86% | 2753 fps | 99.9% |
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% | 43,642 psi | 70% | 2500 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,601 psi | 76% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,824 psi | 57% | 2415 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,728 psi | 69% | 2559 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 50,894 psi | 82% | 2638 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 33,910 psi | 54% | 2402 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 37,130 psi | 60% | 2526 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 52,417 psi | 84% | 2582 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,823 psi | 85% | 2605 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,132 psi | 64% | 2513 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 34,258 psi | 55% | 2369 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,235 psi | 68% | 2526 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 41,800 psi | 67% | 2526 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,182 psi | 79% | 2723 fps | 99.7% |
| Alliant Power Pro 2000-MR | 56.7 gr | 80% | 36,274 psi | 58% | 2523 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,431 psi | 54% | 2388 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,400 psi | 79% | 2595 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,926 psi | 58% | 2444 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,621 psi | 57% | 2487 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,851 psi | 53% | 2451 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,097 psi | 51% | 2431 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,445 psi | 82% | 2579 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,276 psi | 63% | 2516 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 32,561 psi | 52% | 2382 fps | 96.8% |
| Bofors RP7 | <<locked>> | 96% | 50,096 psi | 80% | 2667 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,237 psi | 71% | 2523 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,567 psi | 65% | 2546 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,715 psi | 72% | 2677 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 48,501 psi | 78% | 2628 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,284 psi | 79% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,595 psi | 62% | 2493 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 46,267 psi | 74% | 2690 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 40,437 psi | 65% | 2526 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,387 psi | 52% | 2385 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,405 psi | 58% | 2490 fps | 97.9% |
| Hodgdon Superformance | <<locked>> | 98% | 50,589 psi | 81% | 2779 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 41% | 1476 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,117 psi | 63% | 2484 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 39,682 psi | 64% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,926 psi | 58% | 2402 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,673 psi | 75% | 2579 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 50,009 psi | 80% | 2559 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,209 psi | 74% | 2602 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 35,998 psi | 58% | 2484 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,767 psi | 59% | 2474 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 42,235 psi | 68% | 2526 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 47,369 psi | 76% | 2608 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,754 psi | 62% | 2497 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,785 psi | 65% | 2464 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,534 psi | 57% | 2408 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 42,351 psi | 68% | 2543 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 45,455 psi | 73% | 2618 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 39,276 psi | 63% | 2470 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,595 psi | 63% | 2487 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,302 psi | 57% | 2434 fps | 96.6% |
| Norma URP | <<locked>> | 92% | 37,695 psi | 60% | 2530 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 34,853 psi | 56% | 2444 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 42,467 psi | 68% | 2625 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 42,177 psi | 68% | 2526 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,466 psi | 66% | 2549 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,745 psi | 73% | 2575 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,078 psi | 42% | 1512 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,587 psi | 76% | 2615 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,846 psi | 72% | 2585 fps | 95.5% |
| ReloadSwiss RS 52 | 55 gr | 80% | 37,405 psi | 60% | 2539 fps | 96.6% |
| ReloadSwiss RS 60 | 55.8 gr | 80% | 30,603 psi | 49% | 2402 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,101 psi | 59% | 2546 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,611 psi | 65% | 2615 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 42,989 psi | 69% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,275 psi | 60% | 2425 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,690 psi | 49% | 2329 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 50,096 psi | 80% | 2667 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,351 psi | 68% | 2543 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,754 psi | 62% | 2497 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,534 psi | 57% | 2408 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 45,455 psi | 73% | 2618 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,299 psi | 81% | 2631 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,937 psi | 51% | 2379 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,328 psi | 81% | 2615 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,089 psi | 64% | 2497 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,798 psi | 62% | 2487 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,901 psi | 66% | 2438 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,663 psi | 54% | 2306 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,022 psi | 77% | 2595 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 45,513 psi | 73% | 2605 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,451 psi | 65% | 2441 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,001 psi | 64% | 2500 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,792 psi | 51% | 2343 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 27,630 psi | 44% | 2313 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 46,398 psi | 74% | 2503 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,162 psi | 66% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,434 psi | 58% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,463 psi | 60% | 2425 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,168 psi | 48% | 2283 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 37,231 psi | 60% | 2484 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 42,235 psi | 68% | 2526 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,882 psi | 58% | 2408 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,434 psi | 58% | 2484 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 34,040 psi | 55% | 2503 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,763 psi | 49% | 2306 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 41,437 psi | 66% | 2566 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 46,470 psi | 75% | 2694 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,956 psi | 61% | 2487 fps | 97.9% |
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 | 206gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,884 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 55–90 %, leaving at least 10 % headroom. The 206.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .338 Win Mag. with the .338 | 206gr | Peregrine VLR-5 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.