Load Specifications
Bullet Manufacturer:Lehigh Defense
Bullet Weight:240 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Blaser Mag. load data
Case Length (l3):2.5078"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92.6 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:10.5
Load data in caliber .338 Blaser Mag. with .338 | 240gr | Lehigh Defense Match Solid bullet and 107 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 ReloadSwiss RS 70.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 52,127 psi | 86% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,737 psi | 88% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,360 psi | 89% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,360 psi | 89% | 2582 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 54,404 psi | 89% | 2546 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,017 psi | 67% | 2454 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 53,896 psi | 88% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,751 psi | 88% | 2661 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 54,839 psi | 90% | 2608 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 52,605 psi | 86% | 2566 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 49,153 psi | 81% | 2595 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,737 psi | 88% | 2559 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,752 psi | 90% | 2526 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,418 psi | 89% | 2726 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 48,907 psi | 80% | 2595 fps | 96.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 48,907 psi | 80% | 2595 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 52,286 psi | 86% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,910 psi | 87% | 2605 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 51,895 psi | 85% | 2667 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,837 psi | 87% | 2697 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 48,138 psi | 79% | 2589 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,233 psi | 64% | 2484 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,990 psi | 72% | 2641 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,505 psi | 89% | 2628 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 52,736 psi | 87% | 2595 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,866 psi | 87% | 2572 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 52,286 psi | 86% | 2497 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 53,011 psi | 87% | 2589 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,071 psi | 90% | 2684 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 53,809 psi | 88% | 2536 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 53,650 psi | 88% | 2612 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 54,998 psi | 90% | 2687 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 96% | 52,214 psi | 86% | 2602 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 51,866 psi | 85% | 2569 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2598 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,810 psi | 90% | 2651 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,911 psi | 89% | 2703 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,433 psi | 58% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 52,228 psi | 86% | 2559 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 53,998 psi | 89% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,607 psi | 90% | 2582 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,795 psi | 88% | 2559 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 53,316 psi | 88% | 2602 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,911 psi | 90% | 2605 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,283 psi | 79% | 2569 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 54,273 psi | 89% | 2631 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 53,737 psi | 88% | 2559 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,360 psi | 89% | 2582 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,331 psi | 89% | 2539 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,027 psi | 90% | 2585 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,085 psi | 89% | 2595 fps | 99.6% |
| Lovex S070 | <<locked>> | 98% | 54,940 psi | 90% | 2631 fps | 99.1% |
| Norma 201 | <<locked>> | 86% | 53,316 psi | 88% | 2552 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,940 psi | 89% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 88% | 52,156 psi | 86% | 2592 fps | 100% |
| Norma 204 | <<locked>> | 98% | 53,853 psi | 88% | 2651 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 44,063 psi | 72% | 2598 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 53,026 psi | 87% | 2651 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 52,533 psi | 86% | 2615 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 51,982 psi | 85% | 2654 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 53,911 psi | 89% | 2585 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,432 psi | 88% | 2595 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,578 psi | 90% | 2562 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,042 psi | 59% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,983 psi | 89% | 2595 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,258 psi | 87% | 2664 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,605 psi | 86% | 2694 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,708 psi | 88% | 2687 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,272 psi | 87% | 2717 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 54,143 psi | 89% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,896 psi | 88% | 2552 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 52,620 psi | 86% | 2589 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 46,760 psi | 77% | 2569 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 52,866 psi | 87% | 2572 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,085 psi | 89% | 2595 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,360 psi | 89% | 2582 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,027 psi | 90% | 2585 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,940 psi | 90% | 2631 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,346 psi | 89% | 2648 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 52,243 psi | 86% | 2562 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,069 psi | 87% | 2582 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,897 psi | 90% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 52,040 psi | 85% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,273 psi | 89% | 2552 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 46,325 psi | 76% | 2562 fps | 96.3% |
| Somchem S321 | <<locked>> | 82% | 54,723 psi | 90% | 2589 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,230 psi | 89% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 51,996 psi | 85% | 2552 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 52,953 psi | 87% | 2585 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,966 psi | 84% | 2651 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,297 psi | 78% | 2549 fps | 97.3% |
| Unknown powder | <<locked>> | 96% | 54,230 psi | 89% | 2661 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 54,694 psi | 90% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 52,141 psi | 86% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,766 psi | 88% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,404 psi | 89% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,433 psi | 89% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,112 psi | 86% | 2598 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 54,085 psi | 89% | 2556 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,736 psi | 87% | 2536 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,665 psi | 90% | 2654 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,236 psi | 71% | 2552 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,330 psi | 86% | 2582 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,621 psi | 90% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,998 psi | 90% | 2687 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,940 psi | 57% | 2497 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,545 psi | 81% | 2569 fps | 96.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,921 psi | 80% | 2418 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,292 psi | 68% | 2352 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,340 psi | 78% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,340 psi | 78% | 2487 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 41,930 psi | 69% | 2352 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 33,214 psi | 55% | 2300 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 39,073 psi | 64% | 2356 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 28,645 psi | 47% | 2205 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,324 psi | 74% | 2467 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 38,464 psi | 63% | 2333 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 98% | 46,122 psi | 76% | 2546 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,485 psi | 78% | 2470 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 47,877 psi | 79% | 2441 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,133 psi | 68% | 2507 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 42,946 psi | 71% | 2493 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 42,946 psi | 71% | 2493 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,072 psi | 63% | 2352 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,959 psi | 67% | 2411 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 29,573 psi | 49% | 2221 fps | 95.5% |
| Alliant Reloder-17 | 55.9 gr | 80% | 32,822 psi | 54% | 2336 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 98% | 45,049 psi | 74% | 2536 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 25,367 psi | 42% | 2139 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 30,806 psi | 51% | 2346 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,483 psi | 73% | 2477 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 37,492 psi | 62% | 2356 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 38,667 psi | 63% | 2333 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,979 psi | 80% | 2451 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,093 psi | 76% | 2490 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,445 psi | 84% | 2631 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 50,473 psi | 83% | 2493 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,435 psi | 63% | 2362 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 82% | 36,245 psi | 60% | 2369 fps | 95% |
| Hodgdon H4350 | <<locked>> | 90% | 43,352 psi | 71% | 2457 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 45,774 psi | 75% | 2477 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,876 psi | 44% | 2129 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,262 psi | 64% | 2411 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 40,451 psi | 66% | 2477 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,310 psi | 43% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,582 psi | 67% | 2375 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 41,756 psi | 69% | 2402 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,695 psi | 62% | 2310 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 37,507 psi | 62% | 2280 fps | 95.2% |
| IMR 4350 | <<locked>> | 88% | 38,914 psi | 64% | 2362 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 37,840 psi | 62% | 2316 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 28,877 psi | 47% | 2192 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 42,003 psi | 69% | 2441 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,485 psi | 78% | 2470 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,367 psi | 73% | 2444 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,223 psi | 74% | 2405 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 40,161 psi | 66% | 2362 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 32,909 psi | 54% | 2221 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 37,623 psi | 62% | 2343 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 44,135 psi | 72% | 2418 fps | 100% |
| Norma 202 | <<locked>> | 80% | 44,643 psi | 73% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,321 psi | 66% | 2402 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 43,772 psi | 72% | 2490 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 38,421 psi | 63% | 2487 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 29,327 psi | 48% | 2211 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,827 psi | 65% | 2415 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 34,896 psi | 57% | 2346 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 47,152 psi | 77% | 2484 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,789 psi | 77% | 2500 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,923 psi | 84% | 2513 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 44% | 1427 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,914 psi | 64% | 2346 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,308 psi | 71% | 2510 fps | 99.6% |
| ReloadSwiss RS 60 | 55.9 gr | 80% | 34,983 psi | 57% | 2395 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 30,589 psi | 50% | 2270 fps | 95.6% |
| ReloadSwiss RS 70 | 59.6 gr | 84% | 33,025 psi | 54% | 2333 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,037 psi | 79% | 2444 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,887 psi | 69% | 2372 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 35,389 psi | 58% | 2306 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 43,569 psi | 72% | 2513 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 38,667 psi | 63% | 2333 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 32,909 psi | 54% | 2221 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,367 psi | 73% | 2444 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,161 psi | 66% | 2362 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 37,623 psi | 62% | 2343 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,477 psi | 60% | 2356 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,368 psi | 74% | 2457 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,743 psi | 72% | 2441 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,745 psi | 75% | 2369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,043 psi | 62% | 2251 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 36,506 psi | 60% | 2264 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 43,178 psi | 71% | 2510 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,184 psi | 84% | 2539 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,165 psi | 74% | 2369 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,281 psi | 74% | 2454 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 36,201 psi | 59% | 2310 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 26,194 psi | 43% | 2169 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 38,783 psi | 64% | 2402 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 32,010 psi | 53% | 2264 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 51,634 psi | 85% | 2415 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,166 psi | 76% | 2359 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,771 psi | 69% | 2352 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,293 psi | 69% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,476 psi | 57% | 2254 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 30,705 psi | 50% | 2215 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 47,413 psi | 78% | 2464 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,596 psi | 67% | 2359 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 30,023 psi | 49% | 2211 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 26,992 psi | 44% | 2205 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,429 psi | 50% | 2192 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 51,024 psi | 84% | 2562 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,245 psi | 60% | 2369 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 25,295 psi | 42% | 2205 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,108 psi | 76% | 2516 fps | 95.8% |
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 107 powders for .338 Blaser Mag. loaded with the .338 | 240gr | Lehigh Defense Match Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,726 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 240.0 gr projectile in 0.338" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, ReloadSwiss RS 70 rank at the top here: for .338 Blaser Mag. with the .338 | 240gr | Lehigh Defense Match Solid 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.