
Load Specifications
Load data in caliber .338 Blaser Mag. with .338 | 260gr | CutEdge Maximus bullet and 110 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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 2495 | <<locked>> | 86% | 54,114 psi | 89% | 2421 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,157 psi | 89% | 2470 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,201 psi | 89% | 2454 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,657 psi | 73% | 2421 fps | 99% |
| Accurate 4064 | <<locked>> | 88% | 54,346 psi | 89% | 2470 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,549 psi | 90% | 2569 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 54,607 psi | 90% | 2503 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,330 psi | 86% | 2461 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,750 psi | 87% | 2559 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,388 psi | 88% | 2451 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,882 psi | 90% | 2418 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,317 psi | 89% | 2618 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,518 psi | 86% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,895 psi | 87% | 2500 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,344 psi | 86% | 2572 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,272 psi | 87% | 2598 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,517 psi | 85% | 2549 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,020 psi | 74% | 2493 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,525 psi | 70% | 2448 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,318 psi | 61% | 2372 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2608 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,288 psi | 89% | 2520 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 41,423 psi | 68% | 2428 fps | 95.9% |
| Bofors RP3 | <<locked>> | 88% | 52,910 psi | 87% | 2493 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,020 psi | 74% | 2493 fps | 97.1% |
| Bofors RP7 | <<locked>> | 92% | 52,997 psi | 87% | 2480 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,969 psi | 90% | 2431 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,808 psi | 87% | 2480 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,664 psi | 88% | 2510 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 51,445 psi | 84% | 2539 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 52,504 psi | 86% | 2510 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 82% | 51,634 psi | 85% | 2464 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 52,243 psi | 86% | 2503 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,998 psi | 90% | 2546 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,722 psi | 88% | 2605 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 59% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,909 psi | 85% | 2454 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,201 psi | 89% | 2467 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,346 psi | 89% | 2477 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 53,635 psi | 88% | 2461 fps | 99.3% |
| IMR 4350 | <<locked>> | 96% | 53,374 psi | 88% | 2510 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,911 psi | 90% | 2510 fps | 99.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,170 psi | 86% | 2523 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,273 psi | 89% | 2526 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 52,533 psi | 86% | 2500 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 47,964 psi | 79% | 2526 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 53,388 psi | 88% | 2451 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,418 psi | 89% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,056 psi | 89% | 2434 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,868 psi | 90% | 2480 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,331 psi | 89% | 2500 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 51,779 psi | 85% | 2490 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,985 psi | 61% | 2290 fps | 97.4% |
| Norma 201 | <<locked>> | 84% | 53,272 psi | 87% | 2448 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,969 psi | 89% | 2448 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,127 psi | 86% | 2487 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,751 psi | 88% | 2556 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 47,558 psi | 78% | 2569 fps | 98.8% |
| Norma URP | <<locked>> | 96% | 53,635 psi | 88% | 2556 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 52,533 psi | 86% | 2513 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,053 psi | 84% | 2582 fps | 97% |
| Ramshot Hunter | <<locked>> | 96% | 52,185 psi | 86% | 2559 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,714 psi | 72% | 2448 fps | 97.1% |
| Ramshot TAC | <<locked>> | 82% | 53,447 psi | 88% | 2480 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,345 psi | 88% | 2493 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,274 psi | 60% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,940 psi | 89% | 2500 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,476 psi | 88% | 2559 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,968 psi | 87% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,186 psi | 89% | 2592 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,345 psi | 88% | 2618 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 53,969 psi | 89% | 2421 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,867 psi | 88% | 2448 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,808 psi | 87% | 2487 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 2533 fps | 97.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,401 psi | 83% | 2533 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 92% | 52,997 psi | 87% | 2480 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,331 psi | 89% | 2500 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,418 psi | 89% | 2474 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,868 psi | 90% | 2480 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,779 psi | 85% | 2490 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,607 psi | 90% | 2546 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,909 psi | 85% | 2461 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,982 psi | 87% | 2480 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,534 psi | 90% | 2385 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,998 psi | 90% | 2388 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,346 psi | 89% | 2461 fps | 99.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,922 psi | 82% | 2526 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 54,099 psi | 89% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,764 psi | 85% | 2451 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,229 psi | 87% | 2487 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 52,518 psi | 86% | 2477 fps | 96.2% |
| Somchem S365 | <<locked>> | 98% | 51,793 psi | 85% | 2552 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,937 psi | 84% | 2510 fps | 98.8% |
| Unknown powder | <<locked>> | 94% | 54,491 psi | 89% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,955 psi | 90% | 2369 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,882 psi | 88% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,491 psi | 89% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,447 psi | 89% | 2464 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,402 psi | 86% | 2503 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,932 psi | 72% | 2392 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 53,737 psi | 88% | 2451 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,373 psi | 86% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,781 psi | 90% | 2556 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,123 psi | 77% | 2510 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2556 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,243 psi | 86% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 51,445 psi | 84% | 2539 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,956 psi | 62% | 2484 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,243 psi | 87% | 2533 fps | 98.2% |
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 2495 | <<locked>> | 80% | 44,454 psi | 73% | 2297 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,575 psi | 83% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 38,928 psi | 64% | 2215 fps | 95.9% |
| Accurate 3100 | <<locked>> | 90% | 31,618 psi | 52% | 2182 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,090 psi | 69% | 2303 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,096 psi | 51% | 2175 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 48,022 psi | 79% | 2411 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,959 psi | 67% | 2287 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 40,683 psi | 67% | 2362 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,198 psi | 82% | 2408 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,358 psi | 84% | 2379 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,179 psi | 73% | 2464 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,625 psi | 67% | 2303 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,627 psi | 72% | 2362 fps | 99.9% |
| Alliant Reloder-16 | 51.8 gr | 80% | 31,473 psi | 52% | 2192 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,157 psi | 58% | 2303 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 39,987 psi | 66% | 2356 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 39,465 psi | 65% | 2392 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 24,105 psi | 40% | 2024 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 94% | 30,922 psi | 51% | 2218 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 86% | 29,037 psi | 48% | 2221 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,587 psi | 78% | 2428 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 38,885 psi | 64% | 2379 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 40,437 psi | 66% | 2313 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 39,465 psi | 65% | 2392 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 36,172 psi | 59% | 2198 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,764 psi | 85% | 2388 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,385 psi | 81% | 2438 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,220 psi | 68% | 2323 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 36,477 psi | 60% | 2287 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 84% | 38,450 psi | 63% | 2277 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,515 psi | 80% | 2418 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,935 psi | 48% | 2103 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,250 psi | 69% | 2365 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 35,056 psi | 58% | 2280 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 44% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,207 psi | 71% | 2326 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 44,614 psi | 73% | 2343 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,161 psi | 66% | 2264 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 39,769 psi | 65% | 2241 fps | 97% |
| IMR 4350 | <<locked>> | 84% | 36,651 psi | 60% | 2231 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,840 psi | 62% | 2231 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 27,543 psi | 45% | 2073 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 44,715 psi | 73% | 2388 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 46,209 psi | 76% | 2402 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 44,947 psi | 74% | 2474 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 50,198 psi | 82% | 2408 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,442 psi | 78% | 2385 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,834 psi | 79% | 2349 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,917 psi | 70% | 2313 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,186 psi | 58% | 2188 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 33,228 psi | 55% | 2165 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 30,356 psi | 50% | 2152 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,007 psi | 77% | 2362 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,384 psi | 78% | 2359 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,960 psi | 71% | 2352 fps | 100% |
| Norma 204 | <<locked>> | 88% | 41,002 psi | 67% | 2352 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 33,910 psi | 56% | 2303 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,531 psi | 52% | 2178 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 80% | 42,844 psi | 70% | 2372 fps | 99.9% |
| Ramshot Grand | <<locked>> | 96% | 43,918 psi | 72% | 2464 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 82% | 32,808 psi | 54% | 2215 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 37,652 psi | 62% | 2336 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,111 psi | 82% | 2434 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,966 psi | 82% | 2448 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 45% | 1375 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,568 psi | 68% | 2310 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,470 psi | 76% | 2461 fps | 100% |
| ReloadSwiss RS 60 | 55.8 gr | 80% | 37,478 psi | 62% | 2352 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,995 psi | 51% | 2195 fps | 96.9% |
| ReloadSwiss RS 70 | 56.7 gr | 80% | 30,850 psi | 51% | 2198 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 50,995 psi | 84% | 2382 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,614 psi | 73% | 2320 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,927 psi | 62% | 2264 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 44,846 psi | 74% | 2388 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 38,551 psi | 63% | 2333 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 36,172 psi | 59% | 2198 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,186 psi | 58% | 2188 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,442 psi | 78% | 2385 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,917 psi | 70% | 2313 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 33,228 psi | 55% | 2165 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,059 psi | 64% | 2313 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,515 psi | 80% | 2411 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,412 psi | 76% | 2385 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,167 psi | 79% | 2303 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,292 psi | 66% | 2195 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 34,229 psi | 56% | 2133 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 38,232 psi | 63% | 2329 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 47,892 psi | 79% | 2306 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,399 psi | 79% | 2405 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,827 psi | 64% | 2267 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 49,139 psi | 81% | 2431 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 28,195 psi | 46% | 2139 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 36,637 psi | 60% | 2274 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 34,316 psi | 56% | 2228 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 80% | 48,675 psi | 80% | 2293 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,498 psi | 73% | 2290 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,918 psi | 74% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,840 psi | 60% | 2208 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 32,924 psi | 54% | 2178 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 96% | 38,638 psi | 63% | 2300 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 50,415 psi | 83% | 2405 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,337 psi | 71% | 2303 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,445 psi | 53% | 2185 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 82% | 25,817 psi | 42% | 2087 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 98% | 45,223 psi | 74% | 2503 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,547 psi | 53% | 2159 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 36,477 psi | 60% | 2287 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 23,960 psi | 39% | 2093 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 40,016 psi | 66% | 2326 fps | 95.3% |
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 110 powders for .338 Blaser Mag. loaded with the .338 | 260gr | CutEdge Maximus. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,618 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,618 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 260.0 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 Reloder-19 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .338 Blaser Mag. with the .338 | 260gr | CutEdge Maximus 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.