Load Specifications
Load data in caliber .338 Blaser Mag. with .338 | 265gr | Nosler AccuBond Long Range 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 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.
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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>> | 84% | 53,693 psi | 88% | 2382 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 51,721 psi | 85% | 2402 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,543 psi | 78% | 2438 fps | 99.4% |
| Accurate 4064 | <<locked>> | 86% | 53,896 psi | 88% | 2431 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 53,766 psi | 88% | 2530 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 53,243 psi | 87% | 2454 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,317 psi | 89% | 2461 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,839 psi | 90% | 2566 fps | 98.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 49,153 psi | 81% | 2510 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,142 psi | 87% | 2575 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,781 psi | 90% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 51,895 psi | 85% | 2457 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,534 psi | 90% | 2575 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 51,982 psi | 85% | 2552 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,954 psi | 89% | 2556 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,413 psi | 78% | 2510 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2457 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,262 psi | 64% | 2388 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,575 psi | 83% | 2621 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 52,910 psi | 87% | 2477 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 43,758 psi | 72% | 2444 fps | 96.9% |
| Bofors RP3 | <<locked>> | 86% | 51,866 psi | 85% | 2451 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,413 psi | 78% | 2510 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 51,880 psi | 85% | 2441 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 52,663 psi | 86% | 2470 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 52,518 psi | 86% | 2526 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 90% | 53,098 psi | 87% | 2493 fps | 98.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 52,823 psi | 87% | 2513 fps | 96.6% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 51,561 psi | 85% | 2497 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 53,795 psi | 88% | 2464 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,650 psi | 90% | 2503 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 53,635 psi | 88% | 2500 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,402 psi | 86% | 2562 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,071 psi | 59% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,940 psi | 90% | 2464 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,418 psi | 89% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 53,824 psi | 88% | 2444 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,301 psi | 88% | 2431 fps | 99.4% |
| IMR 4350 | <<locked>> | 94% | 52,257 psi | 86% | 2467 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,563 psi | 88% | 2464 fps | 99.4% |
| IMR 4831 | <<locked>> | 96% | 54,172 psi | 89% | 2520 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 53,214 psi | 87% | 2484 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,534 psi | 90% | 2503 fps | 97.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 46,731 psi | 77% | 2484 fps | 96% |
| Lovex D073.6 | <<locked>> | 82% | 53,316 psi | 88% | 2431 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,707 psi | 87% | 2392 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,085 psi | 89% | 2441 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,287 psi | 87% | 2461 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 54,288 psi | 89% | 2497 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,697 psi | 65% | 2313 fps | 98.3% |
| Norma 201 | <<locked>> | 82% | 52,315 psi | 86% | 2408 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,910 psi | 87% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,375 psi | 89% | 2490 fps | 100% |
| Norma 204 | <<locked>> | 94% | 52,562 psi | 86% | 2513 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 50,111 psi | 82% | 2582 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 52,707 psi | 87% | 2516 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,042 psi | 90% | 2516 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 46,514 psi | 76% | 2487 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 54,752 psi | 90% | 2566 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 41,249 psi | 68% | 2385 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,811 psi | 60% | 1529 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,562 psi | 86% | 2454 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,272 psi | 86% | 2513 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 51,735 psi | 85% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,359 psi | 88% | 2552 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,257 psi | 86% | 2579 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 38,014 psi | 62% | 2395 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 52,924 psi | 87% | 2408 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 51,996 psi | 85% | 2448 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 53,258 psi | 87% | 2490 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,026 psi | 87% | 2543 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 51,880 psi | 85% | 2441 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,287 psi | 87% | 2461 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,316 psi | 88% | 2431 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,085 psi | 89% | 2441 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,288 psi | 89% | 2497 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 53,548 psi | 88% | 2503 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,157 psi | 89% | 2461 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,056 psi | 90% | 2477 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,403 psi | 88% | 2343 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 53,882 psi | 88% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,156 psi | 87% | 2421 fps | 99.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,533 psi | 86% | 2539 fps | 98.6% |
| Somchem S335 | <<locked>> | 82% | 52,982 psi | 87% | 2346 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,853 psi | 88% | 2448 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 52,330 psi | 86% | 2448 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 54,911 psi | 90% | 2487 fps | 96.9% |
| Somchem S365 | <<locked>> | 98% | 54,694 psi | 90% | 2559 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,650 psi | 88% | 2520 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 53,867 psi | 88% | 2326 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 52,837 psi | 87% | 2365 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,316 psi | 88% | 2385 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 53,301 psi | 88% | 2421 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,998 psi | 90% | 2510 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,311 psi | 76% | 2405 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 86% | 54,781 psi | 90% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,795 psi | 88% | 2516 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,038 psi | 82% | 2523 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 50,821 psi | 83% | 2572 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,621 psi | 90% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 52,750 psi | 87% | 2530 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,248 psi | 66% | 2503 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,013 psi | 90% | 2484 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,198 psi | 82% | 2467 fps | 98% |
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% | 47,065 psi | 77% | 2300 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,411 psi | 75% | 2306 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 29,675 psi | 49% | 2110 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,585 psi | 73% | 2306 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,388 psi | 55% | 2198 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 80% | 50,125 psi | 82% | 2411 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,569 psi | 70% | 2290 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 40,001 psi | 66% | 2326 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 98% | 46,151 psi | 76% | 2457 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,209 psi | 76% | 2470 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,685 psi | 70% | 2310 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,701 psi | 75% | 2369 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,199 psi | 55% | 2208 fps | 98.4% |
| Alliant Reloder-17 | 56.1 gr | 80% | 37,101 psi | 61% | 2313 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 39,421 psi | 65% | 2320 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 39,218 psi | 64% | 2362 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,163 psi | 40% | 2001 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 92% | 30,806 psi | 51% | 2195 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 82% | 27,180 psi | 45% | 2142 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,617 psi | 81% | 2431 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 38,508 psi | 63% | 2346 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 42,757 psi | 70% | 2320 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 39,218 psi | 64% | 2362 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 38,072 psi | 63% | 2211 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 43,337 psi | 71% | 2329 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 35,447 psi | 58% | 2238 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 38,638 psi | 63% | 2254 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 46,137 psi | 76% | 2411 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 48,399 psi | 79% | 2448 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 50,633 psi | 83% | 2421 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,763 psi | 51% | 2119 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,978 psi | 77% | 2408 fps | 100% |
| Hodgdon Superformance | 59.3 gr | 80% | 34,418 psi | 56% | 2241 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,934 psi | 44% | 1329 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,399 psi | 79% | 2379 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,024 psi | 84% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,759 psi | 73% | 2316 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,050 psi | 77% | 2339 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 36,158 psi | 59% | 2198 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,537 psi | 65% | 2238 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 32,430 psi | 53% | 2162 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 46,847 psi | 77% | 2392 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 45,324 psi | 74% | 2365 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 43,685 psi | 72% | 2428 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 80% | 49,879 psi | 82% | 2388 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,617 psi | 81% | 2349 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,049 psi | 74% | 2316 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,941 psi | 61% | 2195 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 35,172 psi | 58% | 2178 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 30,748 psi | 50% | 2133 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,008 psi | 80% | 2362 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,516 psi | 81% | 2362 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,049 psi | 74% | 2359 fps | 100% |
| Norma 204 | <<locked>> | 86% | 40,379 psi | 66% | 2316 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 33,591 psi | 55% | 2270 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 33,489 psi | 55% | 2195 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 44,933 psi | 74% | 2379 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 43,366 psi | 71% | 2434 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 32,605 psi | 54% | 2185 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 98% | 38,479 psi | 63% | 2333 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,485 psi | 45% | 1365 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,511 psi | 71% | 2316 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,023 psi | 80% | 2470 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,465 psi | 65% | 2359 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,069 psi | 54% | 2215 fps | 97.8% |
| ReloadSwiss RS 70 | 57 gr | 80% | 32,605 psi | 54% | 2218 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 35,476 psi | 58% | 2336 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 46,833 psi | 77% | 2323 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,234 psi | 66% | 2274 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 44,208 psi | 73% | 2352 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 38,174 psi | 63% | 2300 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 38,072 psi | 63% | 2211 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,941 psi | 61% | 2195 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,879 psi | 82% | 2388 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,049 psi | 74% | 2316 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,172 psi | 58% | 2178 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,307 psi | 68% | 2323 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,720 psi | 83% | 2415 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,660 psi | 80% | 2392 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,154 psi | 82% | 2303 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,119 psi | 69% | 2195 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,114 psi | 59% | 2146 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 37,826 psi | 62% | 2297 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 49,705 psi | 82% | 2303 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,502 psi | 83% | 2405 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,756 psi | 67% | 2274 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 48,240 psi | 79% | 2392 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 30,095 psi | 49% | 2159 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 36,434 psi | 60% | 2241 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 50,618 psi | 83% | 2290 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,775 psi | 77% | 2290 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,978 psi | 77% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,841 psi | 64% | 2215 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 34,896 psi | 57% | 2192 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 35,737 psi | 59% | 2218 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 45,339 psi | 74% | 2303 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,403 psi | 56% | 2198 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 26,107 psi | 43% | 2067 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 96% | 44,527 psi | 73% | 2467 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,243 psi | 56% | 2172 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 35,636 psi | 59% | 2241 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 22,626 psi | 37% | 2018 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,298 psi | 79% | 2395 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 38,290 psi | 63% | 2270 fps | 95% |
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 112 powders for .338 Blaser Mag. loaded with the .338 | 265gr | Nosler AccuBond Long Range. Alliant Reloder-26 delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,621 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 265.0 gr projectile in 0.338" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 | 265gr | Nosler AccuBond Long Range they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.