Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:230 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:8.5 x 55 Blaser load data
Case Length (l3):2.15"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:77 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:14.5
Load data in caliber 8.5 x 55 Blaser with .338 | 230gr | Nosler CT FailSafe bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 55,782 psi | 89% | 2464 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,259 psi | 87% | 2490 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,272 psi | 85% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,666 psi | 89% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 53,592 psi | 86% | 2474 fps | 96% |
| Accurate 4064 | <<locked>> | 94% | 53,229 psi | 85% | 2523 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 2536 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 82% | 55,027 psi | 88% | 2408 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,448 psi | 89% | 2431 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,650 psi | 88% | 2552 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 55,593 psi | 89% | 2549 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 82% | 56,043 psi | 90% | 2523 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,824 psi | 86% | 2510 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 53,853 psi | 86% | 2487 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,666 psi | 89% | 2605 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 53,911 psi | 86% | 2654 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,911 psi | 88% | 2569 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,564 psi | 89% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,898 psi | 90% | 2589 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,790 psi | 77% | 2539 fps | 98.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,288 psi | 89% | 2674 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,895 psi | 54% | 2297 fps | 96.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,273 psi | 87% | 2411 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,201 psi | 87% | 2566 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 55,245 psi | 89% | 2582 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 56,043 psi | 90% | 2549 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,854 psi | 90% | 2493 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,678 psi | 84% | 2539 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,491 psi | 87% | 2625 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 54,563 psi | 87% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,753 psi | 89% | 2533 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,359 psi | 86% | 2549 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 51,953 psi | 83% | 2582 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 90% | 55,129 psi | 88% | 2562 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,135 psi | 71% | 2434 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 53,925 psi | 86% | 2592 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2615 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,041 psi | 56% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,040 psi | 85% | 2516 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 54,563 psi | 87% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,955 psi | 88% | 2533 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,622 psi | 89% | 2516 fps | 97.3% |
| IMR 4198 | <<locked>> | 84% | 55,869 psi | 90% | 2428 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,665 psi | 88% | 2533 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,253 psi | 74% | 2484 fps | 98.4% |
| IMR 4895 | <<locked>> | 92% | 53,795 psi | 86% | 2572 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 53,824 psi | 86% | 2510 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 54,085 psi | 87% | 2500 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,795 psi | 86% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,824 psi | 88% | 2490 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 54,723 psi | 88% | 2533 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2526 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,792 psi | 81% | 2507 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 53,548 psi | 86% | 2507 fps | 100% |
| Norma 202 | <<locked>> | 90% | 53,679 psi | 86% | 2507 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,027 psi | 88% | 2579 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 48,124 psi | 77% | 2526 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 94% | 55,492 psi | 89% | 2602 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,500 psi | 76% | 2520 fps | 96.7% |
| Ramshot TAC | <<locked>> | 88% | 54,346 psi | 87% | 2526 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,606 psi | 86% | 2546 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,216 psi | 89% | 2516 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,766 psi | 86% | 2497 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,940 psi | 86% | 2530 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,811 psi | 89% | 2648 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,303 psi | 89% | 2680 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,167 psi | 77% | 2556 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2572 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 54,766 psi | 88% | 2490 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,722 psi | 86% | 2500 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 55,143 psi | 88% | 2572 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 56,043 psi | 90% | 2549 fps | 96.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2526 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,795 psi | 86% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,723 psi | 88% | 2533 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,792 psi | 81% | 2507 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,432 psi | 86% | 2470 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,275 psi | 90% | 2533 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,447 psi | 86% | 2582 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,200 psi | 85% | 2444 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,188 psi | 90% | 2556 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,333 psi | 90% | 2572 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,390 psi | 89% | 2451 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,230 psi | 89% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,099 psi | 87% | 2484 fps | 97% |
| Somchem S321 | <<locked>> | 86% | 55,071 psi | 88% | 2543 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 54,650 psi | 88% | 2451 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,419 psi | 89% | 2546 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 55,767 psi | 89% | 2572 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,120 psi | 69% | 2484 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 55,332 psi | 89% | 2418 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,390 psi | 89% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 52,939 psi | 85% | 2467 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,288 psi | 87% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 53,766 psi | 86% | 2510 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,865 psi | 82% | 2526 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 54,447 psi | 87% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 55,956 psi | 90% | 2530 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,719 psi | 80% | 2530 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,969 psi | 58% | 2362 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,648 psi | 83% | 2513 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 53,621 psi | 86% | 2552 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 2585 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 56,130 psi | 90% | 2579 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 43,671 psi | 70% | 2303 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,427 psi | 76% | 2398 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,129 psi | 58% | 2231 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,598 psi | 68% | 2362 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,285 psi | 81% | 2425 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 34,156 psi | 55% | 2221 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 34,330 psi | 55% | 2283 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 51,880 psi | 83% | 2369 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,286 psi | 84% | 2392 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,987 psi | 64% | 2320 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,214 psi | 55% | 2188 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 52,475 psi | 84% | 2477 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,974 psi | 67% | 2329 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 41,495 psi | 67% | 2323 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,747 psi | 78% | 2503 fps | 99.7% |
| Alliant Power Pro 2000-MR | 50 gr | 80% | 36,071 psi | 58% | 2329 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,373 psi | 54% | 2205 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,313 psi | 79% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,824 psi | 57% | 2257 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,375 psi | 57% | 2297 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 82% | 30,734 psi | 49% | 2215 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,995 psi | 51% | 2251 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,836 psi | 82% | 2369 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,899 psi | 62% | 2320 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 32,547 psi | 52% | 2201 fps | 97.1% |
| Bofors RP7 | <<locked>> | 96% | 49,559 psi | 79% | 2454 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,976 psi | 71% | 2323 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,277 psi | 65% | 2346 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,280 psi | 71% | 2467 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 48,037 psi | 77% | 2418 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,820 psi | 78% | 2441 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,085 psi | 58% | 2254 fps | 95% |
| Hodgdon H414 | <<locked>> | 96% | 45,600 psi | 73% | 2480 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,263 psi | 65% | 2329 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,313 psi | 49% | 2156 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,129 psi | 58% | 2297 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 98% | 49,661 psi | 80% | 2559 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 42% | 1345 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,841 psi | 62% | 2287 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 39,595 psi | 63% | 2329 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,853 psi | 57% | 2218 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,340 psi | 74% | 2375 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 49,734 psi | 80% | 2349 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 45,556 psi | 73% | 2392 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 35,650 psi | 57% | 2293 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 36,666 psi | 59% | 2283 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,974 psi | 67% | 2329 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 47,282 psi | 76% | 2408 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,653 psi | 62% | 2303 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,669 psi | 65% | 2270 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,607 psi | 57% | 2221 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 39,624 psi | 64% | 2300 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 44,875 psi | 72% | 2411 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 39,262 psi | 63% | 2280 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 39,421 psi | 63% | 2293 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,215 psi | 56% | 2247 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 35,085 psi | 56% | 2287 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 34,650 psi | 56% | 2257 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 41,901 psi | 67% | 2421 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 41,858 psi | 67% | 2329 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,191 psi | 66% | 2349 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,426 psi | 73% | 2372 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,223 psi | 42% | 1378 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,282 psi | 76% | 2405 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,411 psi | 71% | 2385 fps | 95.6% |
| ReloadSwiss RS 52 | 48.5 gr | 80% | 37,130 psi | 60% | 2343 fps | 96.9% |
| ReloadSwiss RS 60 | 49.2 gr | 80% | 30,574 psi | 49% | 2221 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,840 psi | 59% | 2352 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,263 psi | 65% | 2411 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 43,178 psi | 69% | 2323 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,507 psi | 60% | 2238 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,705 psi | 49% | 2152 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 96% | 49,559 psi | 79% | 2454 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,624 psi | 64% | 2300 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,653 psi | 62% | 2303 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,607 psi | 57% | 2221 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 44,875 psi | 72% | 2411 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,821 psi | 80% | 2421 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,837 psi | 85% | 2490 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,894 psi | 51% | 2198 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,067 psi | 80% | 2405 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,001 psi | 64% | 2303 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,609 psi | 62% | 2293 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,930 psi | 66% | 2244 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,721 psi | 54% | 2129 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,253 psi | 76% | 2388 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 45,078 psi | 72% | 2398 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,335 psi | 65% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,610 psi | 64% | 2303 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 31,807 psi | 51% | 2162 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 27,717 psi | 44% | 2146 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 46,311 psi | 74% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,089 psi | 66% | 2244 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,492 psi | 59% | 2228 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,188 psi | 60% | 2234 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,095 psi | 48% | 2110 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 36,869 psi | 59% | 2290 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 41,858 psi | 67% | 2323 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,868 psi | 58% | 2224 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,143 psi | 58% | 2293 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 33,852 psi | 54% | 2316 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,676 psi | 49% | 2129 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 41,017 psi | 66% | 2362 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 45,861 psi | 74% | 2484 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,753 psi | 61% | 2293 fps | 98.1% |
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 105 powders for 8.5 x 55 Blaser loaded with the .338 | 230gr | Nosler CT FailSafe. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,680 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 230.0 gr projectile in 0.338" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for 8.5 x 55 Blaser with the .338 | 230gr | Nosler CT FailSafe 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.