Load Specifications
Bullet Manufacturer:Frontier Bullets
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:1:12.5
Load data in caliber 8.5 x 55 Blaser with .338 | 225gr | Frontier PH HPBT bullet and 102 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 52 and ReloadSwiss RS 60.
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% | 53,911 psi | 86% | 2464 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,666 psi | 89% | 2530 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,592 psi | 88% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,751 psi | 86% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 55,245 psi | 89% | 2513 fps | 95.9% |
| Accurate 4064 | <<locked>> | 96% | 54,186 psi | 87% | 2559 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,137 psi | 74% | 2520 fps | 98% |
| Accurate LT-30 | <<locked>> | 82% | 53,621 psi | 86% | 2411 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,027 psi | 87% | 2434 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,115 psi | 90% | 2592 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 53,650 psi | 86% | 2543 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 54,172 psi | 87% | 2523 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,564 psi | 89% | 2552 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 55,434 psi | 89% | 2530 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,592 psi | 86% | 2598 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,521 psi | 89% | 2697 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 52,808 psi | 85% | 2562 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,911 psi | 86% | 2470 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 53,882 psi | 86% | 2582 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,093 psi | 74% | 2526 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2664 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,072 psi | 90% | 2454 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,028 psi | 90% | 2612 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 53,084 psi | 85% | 2575 fps | 99.9% |
| Bofors RP7ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2539 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,215 psi | 87% | 2493 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,389 psi | 87% | 2582 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,159 psi | 90% | 2667 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 86% | 56,333 psi | 90% | 2549 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,708 psi | 86% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,650 psi | 88% | 2585 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 49,763 psi | 80% | 2566 fps | 96% |
| Hodgdon H4895 | <<locked>> | 90% | 53,359 psi | 86% | 2559 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,438 psi | 68% | 2425 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,274 psi | 89% | 2631 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 56% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,520 psi | 87% | 2559 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 55,869 psi | 90% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,243 psi | 85% | 2530 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,853 psi | 86% | 2507 fps | 96.6% |
| IMR 4198 | <<locked>> | 84% | 54,215 psi | 87% | 2431 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 56,086 psi | 90% | 2569 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,338 psi | 71% | 2474 fps | 97.7% |
| IMR 4895 | <<locked>> | 94% | 55,187 psi | 88% | 2612 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 90% | 55,564 psi | 89% | 2552 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 55,811 psi | 89% | 2543 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,158 psi | 88% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,405 psi | 90% | 2530 fps | 99.8% |
| Lovex S062 | <<locked>> | 96% | 55,912 psi | 90% | 2569 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2516 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 48,921 psi | 78% | 2497 fps | 95.9% |
| Norma 201 | <<locked>> | 92% | 55,013 psi | 88% | 2546 fps | 100% |
| Norma 202 | <<locked>> | 92% | 55,376 psi | 89% | 2549 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,260 psi | 90% | 2615 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 46,267 psi | 74% | 2516 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 94% | 53,113 psi | 85% | 2592 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,600 psi | 73% | 2503 fps | 95.8% |
| Ramshot TAC | <<locked>> | 90% | 55,985 psi | 90% | 2569 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,071 psi | 88% | 2585 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,345 psi | 86% | 2510 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,128 psi | 56% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,158 psi | 88% | 2536 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,521 psi | 89% | 2569 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,403 psi | 86% | 2638 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,084 psi | 85% | 2671 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,021 psi | 74% | 2539 fps | 97.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,152 psi | 76% | 2556 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 90% | 56,072 psi | 90% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,172 psi | 88% | 2539 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 56,318 psi | 90% | 2608 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2539 fps | 96% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2516 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,158 psi | 88% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,912 psi | 90% | 2569 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 48,921 psi | 78% | 2497 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,259 psi | 89% | 2513 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,462 psi | 87% | 2533 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,665 psi | 88% | 2621 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,839 psi | 88% | 2487 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,882 psi | 86% | 2543 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,346 psi | 87% | 2566 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,621 psi | 86% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 53,185 psi | 85% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2474 fps | 96.2% |
| Somchem S321 | <<locked>> | 86% | 53,098 psi | 85% | 2539 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 56,159 psi | 90% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,388 psi | 86% | 2539 fps | 99.6% |
| Somchem S355 | <<locked>> | 98% | 53,708 psi | 86% | 2566 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,191 psi | 66% | 2470 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 86% | 53,780 psi | 86% | 2425 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,592 psi | 86% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,259 psi | 87% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,796 psi | 89% | 2526 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,100 psi | 88% | 2546 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,704 psi | 78% | 2513 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 90% | 55,999 psi | 90% | 2552 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 53,998 psi | 87% | 2530 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,805 psi | 77% | 2520 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,821 psi | 80% | 2503 fps | 99.6% |
| Winchester 748 | <<locked>> | 90% | 55,303 psi | 89% | 2595 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 2569 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,114 psi | 87% | 2575 fps | 99.9% |
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% | 42,192 psi | 68% | 2303 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,716 psi | 73% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,635 psi | 56% | 2224 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,872 psi | 66% | 2352 fps | 99.8% |
| Accurate 2700 | <<locked>> | 92% | 51,808 psi | 83% | 2464 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 32,779 psi | 53% | 2215 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 34,998 psi | 56% | 2316 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 50,502 psi | 81% | 2372 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,894 psi | 82% | 2392 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,682 psi | 62% | 2313 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 35,172 psi | 56% | 2224 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 50,633 psi | 81% | 2477 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,683 psi | 65% | 2323 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 39,784 psi | 64% | 2323 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,065 psi | 75% | 2500 fps | 99.4% |
| Alliant Power Pro 2000-MR | 50.3 gr | 82% | 37,130 psi | 60% | 2369 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,126 psi | 52% | 2198 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,703 psi | 76% | 2388 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,592 psi | 55% | 2251 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,230 psi | 58% | 2329 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,560 psi | 51% | 2251 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,371 psi | 79% | 2372 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,478 psi | 60% | 2310 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 31,270 psi | 50% | 2195 fps | 96.3% |
| Bofors RP7 | <<locked>> | 98% | 50,792 psi | 81% | 2490 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,743 psi | 69% | 2320 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,711 psi | 62% | 2339 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,583 psi | 68% | 2457 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 46,470 psi | 75% | 2418 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,108 psi | 76% | 2441 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 39,407 psi | 63% | 2339 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 46,891 psi | 75% | 2520 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 38,928 psi | 62% | 2323 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,169 psi | 50% | 2192 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,925 psi | 56% | 2290 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 41% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,608 psi | 60% | 2283 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 38,043 psi | 61% | 2329 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,664 psi | 56% | 2208 fps | 95.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,659 psi | 76% | 2411 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 48,167 psi | 77% | 2352 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 49,922 psi | 80% | 2480 fps | 95.7% |
| IMR 4831 | <<locked>> | 94% | 36,419 psi | 58% | 2326 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,360 psi | 57% | 2277 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 40,683 psi | 65% | 2323 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 45,600 psi | 73% | 2402 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,028 psi | 59% | 2297 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,494 psi | 63% | 2264 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 34,374 psi | 55% | 2218 fps | 97.6% |
| Lovex S065 | <<locked>> | 92% | 40,567 psi | 65% | 2336 fps | 95% |
| Lovex S070 | <<locked>> | 98% | 46,064 psi | 74% | 2451 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 37,927 psi | 61% | 2274 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 38,072 psi | 61% | 2290 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 33,953 psi | 54% | 2238 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 35,853 psi | 57% | 2320 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,359 psi | 53% | 2244 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 98% | 42,815 psi | 69% | 2454 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 40,495 psi | 65% | 2320 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,697 psi | 64% | 2343 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,961 psi | 70% | 2365 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 42% | 1385 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,600 psi | 73% | 2402 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 45,818 psi | 73% | 2425 fps | 95.6% |
| ReloadSwiss RS 52 | 47.6 gr | 80% | 35,607 psi | 57% | 2329 fps | 95.9% |
| ReloadSwiss RS 60 | 48.4 gr | 80% | 29,617 psi | 47% | 2208 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,695 psi | 60% | 2385 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 41,205 psi | 66% | 2448 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,756 psi | 67% | 2320 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,216 psi | 58% | 2234 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 29,457 psi | 47% | 2142 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 98% | 50,792 psi | 81% | 2490 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 40,567 psi | 65% | 2336 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,028 psi | 59% | 2297 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 34,374 psi | 55% | 2218 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 98% | 46,064 psi | 74% | 2451 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,167 psi | 77% | 2415 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,097 psi | 82% | 2490 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,721 psi | 52% | 2234 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,428 psi | 78% | 2405 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,595 psi | 62% | 2293 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,188 psi | 60% | 2283 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,624 psi | 64% | 2244 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,532 psi | 52% | 2123 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,631 psi | 78% | 2425 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 43,497 psi | 70% | 2395 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 39,088 psi | 63% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,159 psi | 61% | 2293 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 30,603 psi | 49% | 2152 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 28,268 psi | 45% | 2175 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 44,875 psi | 72% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,726 psi | 64% | 2244 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,070 psi | 56% | 2224 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,882 psi | 58% | 2228 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,008 psi | 47% | 2100 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 92% | 37,753 psi | 61% | 2326 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,567 psi | 65% | 2320 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,476 psi | 55% | 2218 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 36,927 psi | 59% | 2329 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,604 psi | 51% | 2165 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 39,595 psi | 63% | 2359 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 46,891 psi | 75% | 2520 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,289 psi | 58% | 2283 fps | 97.4% |
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 102 powders for 8.5 x 55 Blaser loaded with the .338 | 225gr | Frontier PH HPBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,697 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:12.5 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 52, ReloadSwiss RS 60 rank at the top here: for 8.5 x 55 Blaser with the .338 | 225gr | Frontier PH HPBT 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.