Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:210 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:1:13.0
Load data in caliber .338 Win Mag. with .338 | 210gr | Barnes TTSX BT bullet and 104 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>> | 86% | 53,476 psi | 86% | 2615 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,187 psi | 88% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,375 psi | 87% | 2674 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,359 psi | 86% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,071 psi | 88% | 2677 fps | 96.4% |
| Accurate 4064 | <<locked>> | 94% | 54,288 psi | 87% | 2717 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,183 psi | 80% | 2736 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,231 psi | 90% | 2605 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,999 psi | 90% | 2756 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 53,534 psi | 86% | 2703 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,303 psi | 89% | 2713 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,622 psi | 89% | 2687 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,388 psi | 86% | 2762 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,622 psi | 89% | 2867 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,376 psi | 90% | 2769 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,200 psi | 85% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,737 psi | 86% | 2743 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,313 psi | 79% | 2743 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,664 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,650 psi | 56% | 2477 fps | 96.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,303 psi | 89% | 2602 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,811 psi | 89% | 2769 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 53,229 psi | 85% | 2736 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,012 psi | 87% | 2703 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,911 psi | 86% | 2651 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,201 psi | 87% | 2740 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,347 psi | 90% | 2835 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 56,115 psi | 90% | 2707 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,316 psi | 85% | 2684 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,737 psi | 88% | 2749 fps | 99% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,896 psi | 86% | 2792 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 98% | 55,027 psi | 88% | 2756 fps | 96% |
| Hodgdon H4895 | <<locked>> | 88% | 53,127 psi | 85% | 2717 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,411 psi | 73% | 2628 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,550 psi | 89% | 2795 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,042 psi | 88% | 2825 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 56% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,462 psi | 87% | 2720 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 56,217 psi | 90% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,011 psi | 85% | 2687 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 53,563 psi | 86% | 2667 fps | 97% |
| IMR 4198 | <<locked>> | 82% | 53,780 psi | 86% | 2582 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2677 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,159 psi | 90% | 2736 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,790 psi | 77% | 2680 fps | 98.6% |
| IMR 4895 | <<locked>> | 92% | 55,114 psi | 88% | 2772 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,303 psi | 89% | 2713 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,230 psi | 89% | 2697 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,288 psi | 89% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,014 psi | 90% | 2687 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 56,043 psi | 90% | 2733 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2726 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,272 psi | 84% | 2707 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 54,520 psi | 87% | 2700 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,071 psi | 88% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,304 psi | 90% | 2779 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 49,864 psi | 80% | 2730 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 53,432 psi | 86% | 2756 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,008 psi | 79% | 2720 fps | 97.1% |
| Ramshot TAC | <<locked>> | 88% | 55,579 psi | 89% | 2726 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,042 psi | 88% | 2746 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,391 psi | 90% | 2713 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 57% | 1677 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,781 psi | 88% | 2694 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,463 psi | 89% | 2733 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,911 psi | 86% | 2805 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,548 psi | 86% | 2841 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,980 psi | 80% | 2759 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2785 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 88% | 55,216 psi | 89% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,824 psi | 88% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 53,098 psi | 85% | 2726 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 54,012 psi | 87% | 2703 fps | 96.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2726 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,288 psi | 89% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,043 psi | 90% | 2733 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,272 psi | 84% | 2707 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,375 psi | 87% | 2664 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,042 psi | 88% | 2785 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,244 psi | 87% | 2641 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,650 psi | 86% | 2703 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,317 psi | 87% | 2726 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,258 psi | 85% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,214 psi | 85% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,854 psi | 90% | 2687 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 52,881 psi | 85% | 2694 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,666 psi | 89% | 2644 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,330 psi | 86% | 2697 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 53,693 psi | 86% | 2726 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,469 psi | 71% | 2680 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 56,304 psi | 90% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,417 psi | 86% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,418 psi | 87% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,811 psi | 89% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,303 psi | 89% | 2707 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,547 psi | 84% | 2730 fps | 99% |
| Vihtavuori N530 | <<locked>> | 88% | 55,782 psi | 89% | 2710 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,635 psi | 86% | 2680 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,547 psi | 83% | 2733 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,985 psi | 59% | 2546 fps | 96.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2717 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 55,347 psi | 89% | 2756 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,896 psi | 86% | 2792 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,070 psi | 87% | 2733 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% | 44,309 psi | 71% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,153 psi | 77% | 2585 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,303 psi | 58% | 2395 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,250 psi | 69% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 51,488 psi | 83% | 2621 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 34,345 psi | 55% | 2385 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,186 psi | 56% | 2461 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 52,808 psi | 85% | 2559 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,756 psi | 65% | 2503 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,606 psi | 55% | 2356 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,888 psi | 69% | 2516 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,337 psi | 68% | 2507 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,009 psi | 80% | 2710 fps | 99.8% |
| Alliant Power Pro 2000-MR | 56.5 gr | 80% | 36,724 psi | 59% | 2513 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,823 psi | 54% | 2375 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,096 psi | 80% | 2575 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,535 psi | 59% | 2434 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,027 psi | 58% | 2477 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,067 psi | 50% | 2382 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,561 psi | 52% | 2425 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,924 psi | 83% | 2559 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,740 psi | 64% | 2500 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 32,996 psi | 53% | 2369 fps | 97.1% |
| Bofors RP7 | <<locked>> | 94% | 47,630 psi | 76% | 2602 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,860 psi | 72% | 2510 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,060 psi | 66% | 2526 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,295 psi | 73% | 2661 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,008 psi | 79% | 2612 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,850 psi | 80% | 2635 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,651 psi | 59% | 2428 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 96% | 46,920 psi | 75% | 2677 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 96% | 51,706 psi | 83% | 2703 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 41,118 psi | 66% | 2513 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,908 psi | 50% | 2326 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,840 psi | 59% | 2477 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 96% | 47,659 psi | 76% | 2703 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 42% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,537 psi | 63% | 2467 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,379 psi | 65% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,289 psi | 58% | 2388 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,137 psi | 76% | 2566 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 50,633 psi | 81% | 2539 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 47,471 psi | 76% | 2621 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,731 psi | 75% | 2585 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 34,214 psi | 55% | 2421 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,434 psi | 60% | 2464 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 42,888 psi | 69% | 2516 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 47,964 psi | 77% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,262 psi | 63% | 2480 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,162 psi | 66% | 2444 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,940 psi | 58% | 2392 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 40,263 psi | 65% | 2480 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 46,064 psi | 74% | 2605 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 39,682 psi | 64% | 2457 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 40,001 psi | 64% | 2470 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,911 psi | 58% | 2425 fps | 97% |
| Norma URP | <<locked>> | 90% | 35,839 psi | 57% | 2464 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,273 psi | 57% | 2431 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 42,873 psi | 69% | 2612 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 42,656 psi | 68% | 2513 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,945 psi | 67% | 2533 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,209 psi | 74% | 2559 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,063 psi | 42% | 1496 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,080 psi | 77% | 2595 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,482 psi | 68% | 2520 fps | 95.1% |
| ReloadSwiss RS 52 | 54.8 gr | 80% | 37,927 psi | 61% | 2526 fps | 97% |
| ReloadSwiss RS 60 | 55.7 gr | 80% | 31,125 psi | 50% | 2395 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,695 psi | 60% | 2533 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,176 psi | 66% | 2605 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,395 psi | 70% | 2500 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,855 psi | 61% | 2411 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,111 psi | 50% | 2316 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 47,630 psi | 76% | 2602 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,263 psi | 65% | 2480 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,262 psi | 63% | 2480 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,940 psi | 58% | 2392 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 46,064 psi | 74% | 2605 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,807 psi | 81% | 2612 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,343 psi | 52% | 2365 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,039 psi | 82% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,582 psi | 65% | 2484 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,262 psi | 63% | 2470 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,481 psi | 67% | 2425 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,171 psi | 55% | 2293 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,556 psi | 73% | 2530 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,050 psi | 74% | 2589 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,872 psi | 66% | 2425 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,480 psi | 65% | 2487 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,155 psi | 52% | 2326 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 27,978 psi | 45% | 2306 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 47,021 psi | 75% | 2487 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,756 psi | 67% | 2421 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,057 psi | 59% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,898 psi | 61% | 2408 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,545 psi | 49% | 2270 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 88% | 35,360 psi | 57% | 2421 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 42,685 psi | 68% | 2507 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,318 psi | 58% | 2395 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,956 psi | 59% | 2470 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 32,416 psi | 52% | 2441 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,241 psi | 50% | 2297 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 41,959 psi | 67% | 2549 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 47,152 psi | 76% | 2684 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,406 psi | 62% | 2470 fps | 98.2% |
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 104 powders for .338 Win Mag. loaded with the .338 | 210gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,637 fps to 2,867 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:13.0 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 | 210gr | Barnes TTSX BT 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.