Load Specifications
Bullet Manufacturer:Lehigh Defense
Bullet Weight:250 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:1:11.0
Load data in caliber .338 Blaser Mag. with .338 | 250gr | Lehigh Defense Controlled Fracturing bullet and 109 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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% | 53,896 psi | 88% | 2428 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 52,373 psi | 86% | 2454 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 52,489 psi | 86% | 2503 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 52,489 psi | 86% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,649 psi | 86% | 2477 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,033 psi | 71% | 2441 fps | 98.4% |
| Accurate 4064 | <<locked>> | 88% | 52,620 psi | 86% | 2500 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 52,504 psi | 86% | 2592 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 53,069 psi | 87% | 2533 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,085 psi | 89% | 2536 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,024 psi | 84% | 2582 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 52,199 psi | 86% | 2487 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,185 psi | 87% | 2454 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 52,808 psi | 87% | 2648 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,778 psi | 83% | 2579 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,201 psi | 89% | 2556 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,853 psi | 90% | 2575 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 53,896 psi | 88% | 2644 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,042 psi | 90% | 2674 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,024 psi | 82% | 2572 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 43,584 psi | 72% | 2513 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,944 psi | 67% | 2467 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,013 psi | 59% | 2382 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,818 psi | 75% | 2625 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 52,634 psi | 86% | 2549 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 54,563 psi | 90% | 2566 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 43,584 psi | 72% | 2513 fps | 96.1% |
| Bofors RP7 | <<locked>> | 94% | 54,737 psi | 90% | 2552 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,650 psi | 88% | 2464 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,723 psi | 90% | 2556 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 51,967 psi | 85% | 2536 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 53,461 psi | 88% | 2615 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 96% | 54,143 psi | 89% | 2582 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 84% | 53,635 psi | 88% | 2539 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,766 psi | 88% | 2572 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,200 psi | 87% | 2575 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 52,112 psi | 86% | 2631 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,781 psi | 59% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,737 psi | 88% | 2526 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,518 psi | 86% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,069 psi | 87% | 2510 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,214 psi | 86% | 2487 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 51,721 psi | 85% | 2533 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,374 psi | 88% | 2536 fps | 99% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,343 psi | 83% | 2546 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 52,620 psi | 86% | 2556 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 52,199 psi | 86% | 2487 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 52,707 psi | 87% | 2507 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 52,707 psi | 87% | 2467 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,519 psi | 88% | 2513 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 52,678 psi | 86% | 2526 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 53,548 psi | 88% | 2562 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,462 psi | 58% | 2303 fps | 96.5% |
| Norma 201 | <<locked>> | 86% | 55,100 psi | 90% | 2523 fps | 100% |
| Norma 202 | <<locked>> | 84% | 52,460 psi | 86% | 2480 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,041 psi | 89% | 2566 fps | 100% |
| Norma 204 | <<locked>> | 96% | 52,228 psi | 86% | 2579 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 45,701 psi | 75% | 2582 fps | 98.1% |
| Norma URP | <<locked>> | 96% | 51,793 psi | 85% | 2582 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 54,607 psi | 90% | 2592 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 49,139 psi | 81% | 2595 fps | 96% |
| Ramshot Hunter | <<locked>> | 98% | 53,824 psi | 88% | 2631 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,279 psi | 69% | 2464 fps | 96.1% |
| Ramshot TAC | <<locked>> | 82% | 51,967 psi | 85% | 2507 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 51,822 psi | 85% | 2523 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 59% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 52,330 psi | 86% | 2526 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 51,721 psi | 85% | 2589 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,795 psi | 90% | 2667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 52,098 psi | 86% | 2615 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 51,735 psi | 85% | 2644 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 52,533 psi | 86% | 2454 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 52,373 psi | 86% | 2480 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,708 psi | 90% | 2562 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 52,765 psi | 87% | 2552 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,544 psi | 80% | 2552 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 94% | 54,737 psi | 90% | 2552 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 52,678 psi | 86% | 2526 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 52,707 psi | 87% | 2507 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,519 psi | 88% | 2513 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 53,548 psi | 88% | 2562 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 52,794 psi | 87% | 2572 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,099 psi | 89% | 2536 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,940 psi | 90% | 2556 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,156 psi | 87% | 2418 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,548 psi | 88% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 52,721 psi | 87% | 2484 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,066 psi | 79% | 2546 fps | 97.2% |
| Somchem S335 | <<locked>> | 84% | 52,678 psi | 86% | 2418 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,650 psi | 88% | 2523 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,940 psi | 90% | 2559 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 54,549 psi | 90% | 2549 fps | 96.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,403 psi | 88% | 2628 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,356 psi | 81% | 2533 fps | 98.2% |
| Unknown powder | <<locked>> | 94% | 52,895 psi | 87% | 2592 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 84% | 53,548 psi | 88% | 2402 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 52,257 psi | 86% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 52,924 psi | 87% | 2461 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,011 psi | 87% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,244 psi | 89% | 2579 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 42,540 psi | 70% | 2411 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 82% | 52,243 psi | 86% | 2480 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,331 psi | 89% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,171 psi | 87% | 2585 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,165 psi | 74% | 2530 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,317 psi | 89% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,461 psi | 88% | 2615 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,492 psi | 60% | 2493 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,605 psi | 85% | 2556 fps | 97.5% |
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% | 50,604 psi | 83% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,975 psi | 71% | 2326 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,965 psi | 80% | 2457 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,965 psi | 80% | 2457 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 37,811 psi | 62% | 2234 fps | 95% |
| Accurate 3100 | <<locked>> | 92% | 32,445 psi | 53% | 2241 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 40,741 psi | 67% | 2333 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,878 psi | 49% | 2192 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,688 psi | 77% | 2441 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 39,813 psi | 65% | 2313 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 41,974 psi | 69% | 2428 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,834 psi | 80% | 2438 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,763 psi | 82% | 2411 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,743 psi | 70% | 2487 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 41,887 psi | 69% | 2431 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,552 psi | 65% | 2333 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,293 psi | 69% | 2388 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,501 psi | 50% | 2208 fps | 96.6% |
| Alliant Reloder-17 | 55.9 gr | 80% | 33,997 psi | 56% | 2320 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 41,336 psi | 68% | 2421 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 40,712 psi | 67% | 2461 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 24,801 psi | 41% | 2083 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 31,720 psi | 52% | 2277 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,066 psi | 49% | 2287 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,151 psi | 76% | 2454 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 39,073 psi | 64% | 2336 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 40,712 psi | 67% | 2461 fps | 95.3% |
| Bofors RP7 | <<locked>> | 82% | 37,405 psi | 61% | 2264 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,488 psi | 83% | 2421 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,863 psi | 79% | 2464 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,914 psi | 66% | 2343 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 80% | 35,201 psi | 58% | 2300 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 39,682 psi | 65% | 2343 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 47,137 psi | 77% | 2448 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,992 psi | 46% | 2119 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,857 psi | 67% | 2388 fps | 100% |
| Hodgdon Superformance | 62.1 gr | 84% | 36,434 psi | 60% | 2349 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 44% | 1368 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,003 psi | 69% | 2352 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 43,207 psi | 71% | 2372 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,030 psi | 64% | 2290 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 38,725 psi | 64% | 2260 fps | 96.2% |
| IMR 4350 | <<locked>> | 86% | 37,782 psi | 62% | 2297 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,782 psi | 60% | 2251 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 28,253 psi | 46% | 2133 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 43,337 psi | 71% | 2415 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 48,834 psi | 80% | 2438 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,905 psi | 75% | 2415 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,644 psi | 77% | 2379 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 41,655 psi | 68% | 2339 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,142 psi | 56% | 2205 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 34,432 psi | 57% | 2231 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 33,315 psi | 55% | 2260 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 45,701 psi | 75% | 2392 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,224 psi | 76% | 2395 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,655 psi | 68% | 2379 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 42,482 psi | 70% | 2421 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 37,434 psi | 61% | 2425 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 30,429 psi | 50% | 2195 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 41,452 psi | 68% | 2395 fps | 99.7% |
| Ramshot Grand | <<locked>> | 98% | 45,716 psi | 75% | 2536 fps | 95% |
| Ramshot Hunter | <<locked>> | 84% | 33,953 psi | 56% | 2283 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 39,102 psi | 64% | 2402 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,733 psi | 80% | 2461 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,501 psi | 80% | 2474 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,890 psi | 44% | 1398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,321 psi | 66% | 2329 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,121 psi | 74% | 2490 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,216 psi | 59% | 2372 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,834 psi | 49% | 2211 fps | 95.9% |
| ReloadSwiss RS 70 | 58.2 gr | 82% | 31,952 psi | 52% | 2264 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 49,647 psi | 82% | 2415 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,366 psi | 71% | 2349 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,680 psi | 60% | 2287 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 46,441 psi | 76% | 2457 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 39,885 psi | 65% | 2402 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 37,405 psi | 61% | 2264 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,142 psi | 56% | 2205 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,905 psi | 75% | 2415 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,655 psi | 68% | 2339 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 34,432 psi | 57% | 2231 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,956 psi | 62% | 2336 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,036 psi | 77% | 2438 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,295 psi | 74% | 2418 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,949 psi | 77% | 2336 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,175 psi | 64% | 2221 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 35,549 psi | 58% | 2201 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,163 psi | 69% | 2448 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 46,630 psi | 77% | 2339 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,978 psi | 77% | 2431 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 37,608 psi | 62% | 2290 fps | 99.6% |
| Somchem S361 | <<locked>> | 98% | 51,024 psi | 84% | 2500 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 27,180 psi | 45% | 2152 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 37,811 psi | 62% | 2339 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 33,156 psi | 54% | 2247 fps | 96.7% |
| Vihtavuori N133 | <<locked>> | 80% | 47,413 psi | 78% | 2326 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,134 psi | 71% | 2320 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,613 psi | 72% | 2333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,665 psi | 59% | 2231 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 31,821 psi | 52% | 2198 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 39,726 psi | 65% | 2362 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 49,052 psi | 81% | 2438 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,047 psi | 69% | 2333 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,299 psi | 51% | 2198 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 26,513 psi | 44% | 2149 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,560 psi | 52% | 2178 fps | 98.7% |
| Winchester 760 | <<locked>> | 80% | 35,201 psi | 58% | 2300 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 24,700 psi | 41% | 2152 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 94% | 41,626 psi | 68% | 2398 fps | 95.2% |
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 109 powders for .338 Blaser Mag. loaded with the .338 | 250gr | Lehigh Defense Controlled Fracturing. Alliant Reloder-17 delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,674 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:11.0 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .338 Blaser Mag. with the .338 | 250gr | Lehigh Defense Controlled Fracturing 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.