Load Specifications
Bullet Manufacturer:Woodleigh
Bullet Weight:225 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:1:6.0
Load data in caliber 8.5 x 55 Blaser with .338 | 225gr | Woodleigh PP SN bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 54,752 psi | 88% | 2503 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,069 psi | 85% | 2530 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,101 psi | 90% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,679 psi | 88% | 2585 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,115 psi | 90% | 2566 fps | 96.8% |
| Accurate 4064 | <<locked>> | 94% | 55,796 psi | 89% | 2605 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,648 psi | 83% | 2631 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 88% | 53,534 psi | 86% | 2592 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 54,578 psi | 88% | 2592 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,057 psi | 90% | 2595 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,011 psi | 85% | 2526 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,520 psi | 87% | 2644 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,910 psi | 85% | 2697 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,012 psi | 87% | 2608 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,418 psi | 87% | 2503 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,013 psi | 88% | 2635 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,154 psi | 80% | 2631 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,592 psi | 88% | 2723 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,665 psi | 57% | 2388 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,218 psi | 63% | 2516 fps | 96.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,217 psi | 90% | 2490 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,127 psi | 85% | 2605 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 54,462 psi | 87% | 2625 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,143 psi | 88% | 2595 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,795 psi | 88% | 2536 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,172 psi | 88% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,534 psi | 86% | 2664 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 53,301 psi | 85% | 2543 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,331 psi | 87% | 2569 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,927 psi | 90% | 2638 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,766 psi | 88% | 2677 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 98% | 56,028 psi | 90% | 2644 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 54,012 psi | 87% | 2602 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2523 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,011 psi | 85% | 2631 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,144 psi | 90% | 2717 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 57% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,361 psi | 89% | 2605 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 53,766 psi | 86% | 2589 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,172 psi | 87% | 2575 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,563 psi | 87% | 2559 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 54,592 psi | 88% | 2464 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,576 psi | 83% | 2566 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,664 psi | 86% | 2575 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,776 psi | 78% | 2572 fps | 98.9% |
| IMR 4895 | <<locked>> | 92% | 56,391 psi | 90% | 2661 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 56,057 psi | 90% | 2595 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,736 psi | 85% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,910 psi | 85% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,708 psi | 86% | 2530 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 53,751 psi | 86% | 2575 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,072 psi | 90% | 2615 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2598 fps | 97.5% |
| Norma 201 | <<locked>> | 90% | 55,825 psi | 90% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,275 psi | 90% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,172 psi | 87% | 2621 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 51,010 psi | 82% | 2621 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 54,418 psi | 87% | 2644 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,966 psi | 80% | 2615 fps | 97.5% |
| Ramshot TAC | <<locked>> | 86% | 53,040 psi | 85% | 2566 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,941 psi | 90% | 2631 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,795 psi | 86% | 2552 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,621 psi | 57% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,869 psi | 90% | 2579 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,939 psi | 85% | 2572 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,013 psi | 88% | 2690 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,476 psi | 87% | 2723 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,879 psi | 82% | 2648 fps | 98.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,430 psi | 82% | 2671 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 86% | 53,592 psi | 86% | 2526 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,202 psi | 90% | 2585 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,331 psi | 87% | 2615 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,143 psi | 88% | 2595 fps | 96.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,072 psi | 90% | 2615 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,910 psi | 85% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,751 psi | 86% | 2575 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2598 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,376 psi | 89% | 2549 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,115 psi | 90% | 2674 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,288 psi | 89% | 2523 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,969 psi | 88% | 2595 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,274 psi | 89% | 2612 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,433 psi | 87% | 2493 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,056 psi | 87% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,040 psi | 85% | 2523 fps | 97.1% |
| Somchem S321 | <<locked>> | 84% | 53,766 psi | 86% | 2579 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,577 psi | 86% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,244 psi | 87% | 2585 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 54,665 psi | 88% | 2612 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,469 psi | 73% | 2575 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,157 psi | 87% | 2457 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,520 psi | 87% | 2477 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,535 psi | 89% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,301 psi | 85% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,275 psi | 90% | 2592 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,708 psi | 86% | 2621 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 53,272 psi | 85% | 2549 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,810 psi | 88% | 2569 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,504 psi | 84% | 2625 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,203 psi | 61% | 2454 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,259 psi | 87% | 2602 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,318 psi | 90% | 2638 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,056 psi | 88% | 2680 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,792 psi | 51% | 2362 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,288 psi | 89% | 2625 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% | 45,571 psi | 73% | 2379 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,429 psi | 79% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,130 psi | 61% | 2310 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,759 psi | 72% | 2444 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,095 psi | 79% | 2464 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 36,071 psi | 58% | 2300 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 33,982 psi | 54% | 2320 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 41,713 psi | 67% | 2398 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,621 psi | 57% | 2264 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,714 psi | 70% | 2408 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 43,598 psi | 70% | 2402 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,966 psi | 82% | 2592 fps | 99.9% |
| Alliant Power Pro 2000-MR | 53.3 gr | 80% | 37,695 psi | 60% | 2418 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,896 psi | 56% | 2283 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,184 psi | 82% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,492 psi | 60% | 2339 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,853 psi | 56% | 2336 fps | 95.4% |
| Alliant Reloder-17 | 52.5 gr | 80% | 30,139 psi | 48% | 2244 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,560 psi | 51% | 2287 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,695 psi | 59% | 2461 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,895 psi | 85% | 2448 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,843 psi | 65% | 2405 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 34,389 psi | 55% | 2287 fps | 97.8% |
| Bofors RP7 | <<locked>> | 94% | 48,617 psi | 78% | 2497 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,759 psi | 73% | 2402 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,221 psi | 68% | 2428 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,543 psi | 75% | 2559 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 50,082 psi | 80% | 2497 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,952 psi | 82% | 2523 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,302 psi | 57% | 2283 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 44,947 psi | 72% | 2523 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 96% | 52,504 psi | 84% | 2595 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 42,032 psi | 67% | 2411 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,921 psi | 48% | 2192 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,000 psi | 61% | 2382 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 96% | 48,660 psi | 78% | 2602 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 42% | 1388 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,524 psi | 65% | 2369 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 41,568 psi | 67% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,376 psi | 60% | 2297 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,266 psi | 73% | 2411 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 51,576 psi | 83% | 2428 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,573 psi | 78% | 2520 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 44,773 psi | 72% | 2431 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 33,170 psi | 53% | 2283 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 38,392 psi | 62% | 2365 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 43,714 psi | 70% | 2408 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 49,342 psi | 79% | 2487 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,625 psi | 65% | 2385 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,192 psi | 68% | 2346 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 37,173 psi | 60% | 2300 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 39,030 psi | 63% | 2336 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 44,440 psi | 71% | 2454 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,089 psi | 66% | 2362 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 41,089 psi | 66% | 2369 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,912 psi | 59% | 2329 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 34,809 psi | 56% | 2326 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,332 psi | 58% | 2339 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 41,205 psi | 66% | 2461 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 43,743 psi | 70% | 2415 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,047 psi | 69% | 2434 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,224 psi | 76% | 2454 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 42% | 1421 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,081 psi | 79% | 2484 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,656 psi | 70% | 2425 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,117 psi | 63% | 2431 fps | 97.6% |
| ReloadSwiss RS 60 | 52.5 gr | 80% | 32,068 psi | 51% | 2306 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,390 psi | 58% | 2388 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,450 psi | 63% | 2451 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 44,831 psi | 72% | 2398 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,131 psi | 63% | 2320 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 32,358 psi | 52% | 2234 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 48,617 psi | 78% | 2497 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,030 psi | 63% | 2336 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,625 psi | 65% | 2385 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,173 psi | 60% | 2300 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 44,440 psi | 71% | 2454 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,837 psi | 83% | 2503 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,388 psi | 54% | 2280 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,967 psi | 83% | 2480 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,814 psi | 67% | 2385 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,306 psi | 65% | 2375 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,438 psi | 68% | 2320 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,114 psi | 56% | 2201 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,685 psi | 70% | 2382 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 47,282 psi | 76% | 2484 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,134 psi | 68% | 2326 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,582 psi | 67% | 2388 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 33,460 psi | 54% | 2244 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 27,398 psi | 44% | 2182 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,993 psi | 77% | 2375 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,685 psi | 68% | 2316 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,159 psi | 61% | 2303 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,914 psi | 62% | 2310 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,618 psi | 51% | 2185 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 88% | 36,245 psi | 58% | 2326 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 43,874 psi | 70% | 2408 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,362 psi | 60% | 2300 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 35,563 psi | 57% | 2326 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 94% | 31,720 psi | 51% | 2310 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,110 psi | 48% | 2162 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 43,178 psi | 69% | 2448 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 45,121 psi | 72% | 2526 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,863 psi | 48% | 2303 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,624 psi | 64% | 2379 fps | 98.6% |
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 | 225gr | Woodleigh PP SN. Alliant Reloder-17 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,723 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 51–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for 8.5 x 55 Blaser with the .338 | 225gr | Woodleigh PP SN 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.