Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:250 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:1:15.0
Load data in caliber 8.5 x 55 Blaser with .338 | 250gr | Rhino Solid Shank bullet and 103 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 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% | 55,970 psi | 90% | 2356 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,375 psi | 87% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,056 psi | 87% | 2382 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,999 psi | 90% | 2438 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,563 psi | 86% | 2382 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 53,795 psi | 86% | 2421 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2497 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 54,984 psi | 88% | 2454 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 55,825 psi | 90% | 2451 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,056 psi | 87% | 2408 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,433 psi | 87% | 2382 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,767 psi | 89% | 2497 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,186 psi | 87% | 2556 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,535 psi | 89% | 2470 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,593 psi | 89% | 2356 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,159 psi | 90% | 2487 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,488 psi | 83% | 2500 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,144 psi | 90% | 2582 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,535 psi | 59% | 2274 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,350 psi | 65% | 2405 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,491 psi | 87% | 2467 fps | 99.8% |
| Bofors RP3 | <<locked>> | 94% | 56,057 psi | 90% | 2484 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,391 psi | 90% | 2457 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,811 psi | 89% | 2392 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,055 psi | 85% | 2438 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,998 psi | 88% | 2523 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 54,679 psi | 88% | 2398 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,492 psi | 89% | 2421 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,664 psi | 86% | 2451 fps | 99.5% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,101 psi | 90% | 2539 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 96% | 53,896 psi | 86% | 2461 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 55,492 psi | 89% | 2461 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,630 psi | 76% | 2392 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,389 psi | 87% | 2490 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,432 psi | 86% | 2526 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 57% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,272 psi | 85% | 2418 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,143 psi | 88% | 2441 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,216 psi | 89% | 2434 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,695 psi | 89% | 2421 fps | 98.2% |
| IMR 4198 | <<locked>> | 82% | 55,840 psi | 90% | 2320 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2434 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,940 psi | 88% | 2441 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,212 psi | 81% | 2441 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 54,056 psi | 87% | 2470 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 54,056 psi | 87% | 2408 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,215 psi | 87% | 2395 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,230 psi | 87% | 2428 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,795 psi | 88% | 2388 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 55,143 psi | 88% | 2434 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,027 psi | 87% | 2434 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,766 psi | 88% | 2467 fps | 98.3% |
| Norma 201 | <<locked>> | 88% | 53,534 psi | 86% | 2402 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,056 psi | 87% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,303 psi | 89% | 2477 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 53,287 psi | 85% | 2477 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 52,431 psi | 84% | 2487 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 92% | 55,724 psi | 89% | 2503 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,169 psi | 82% | 2480 fps | 98.4% |
| Ramshot TAC | <<locked>> | 86% | 54,099 psi | 87% | 2428 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,809 psi | 86% | 2444 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,839 psi | 88% | 2411 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 58% | 1486 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,577 psi | 86% | 2392 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,085 psi | 87% | 2438 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,055 psi | 85% | 2503 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,782 psi | 89% | 2575 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 2516 fps | 99.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,692 psi | 84% | 2539 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 54,911 psi | 88% | 2385 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,983 psi | 87% | 2398 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,912 psi | 90% | 2477 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,391 psi | 90% | 2457 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,027 psi | 87% | 2434 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,230 psi | 87% | 2428 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,143 psi | 88% | 2434 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,766 psi | 88% | 2467 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,012 psi | 87% | 2487 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,072 psi | 90% | 2454 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,345 psi | 86% | 2431 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,593 psi | 89% | 2349 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,332 psi | 89% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,505 psi | 87% | 2395 fps | 98% |
| Somchem S321 | <<locked>> | 84% | 55,201 psi | 89% | 2441 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,534 psi | 87% | 2346 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,622 psi | 89% | 2444 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 56,043 psi | 90% | 2470 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,789 psi | 75% | 2444 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,201 psi | 89% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,738 psi | 89% | 2333 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,766 psi | 86% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,665 psi | 88% | 2385 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,346 psi | 87% | 2415 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2480 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 86% | 54,360 psi | 87% | 2405 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,086 psi | 90% | 2425 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,940 psi | 86% | 2490 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,581 psi | 63% | 2339 fps | 98.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,637 psi | 89% | 2467 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,230 psi | 87% | 2451 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,376 psi | 90% | 2543 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,590 psi | 52% | 2267 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,982 psi | 85% | 2438 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% | 46,528 psi | 75% | 2241 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,720 psi | 81% | 2339 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,305 psi | 63% | 2185 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,832 psi | 73% | 2310 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,309 psi | 71% | 2244 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,188 psi | 60% | 2182 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,676 psi | 49% | 2113 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 42,902 psi | 69% | 2274 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,492 psi | 59% | 2149 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,918 psi | 72% | 2280 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 44,788 psi | 72% | 2264 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,489 psi | 84% | 2454 fps | 100% |
| Alliant Power Pro 2000-MR | 50 gr | 80% | 38,624 psi | 62% | 2300 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,926 psi | 58% | 2165 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,344 psi | 84% | 2320 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,638 psi | 62% | 2221 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,633 psi | 51% | 2126 fps | 95.1% |
| Alliant Reloder-17 | 49.3 gr | 80% | 30,951 psi | 50% | 2139 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,761 psi | 46% | 2090 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,273 psi | 57% | 2297 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,713 psi | 67% | 2277 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 35,404 psi | 57% | 2172 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 44,150 psi | 71% | 2280 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,847 psi | 75% | 2270 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,308 psi | 69% | 2300 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,776 psi | 77% | 2421 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 51,198 psi | 82% | 2356 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,112 psi | 84% | 2382 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,303 psi | 58% | 2172 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 40,567 psi | 65% | 2300 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 47,456 psi | 76% | 2369 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,250 psi | 69% | 2283 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,253 psi | 44% | 1998 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,088 psi | 63% | 2260 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 43,323 psi | 69% | 2365 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,266 psi | 42% | 1293 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,437 psi | 66% | 2241 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 42,728 psi | 69% | 2277 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,261 psi | 61% | 2175 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,683 psi | 65% | 2192 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 52,562 psi | 84% | 2280 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 43,961 psi | 70% | 2300 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,236 psi | 69% | 2264 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 32,097 psi | 51% | 2129 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 39,581 psi | 63% | 2247 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 44,918 psi | 72% | 2280 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 50,633 psi | 81% | 2352 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,713 psi | 67% | 2257 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,076 psi | 69% | 2218 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 38,159 psi | 61% | 2178 fps | 99.4% |
| Lovex S065 | <<locked>> | 86% | 37,594 psi | 60% | 2175 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 40,306 psi | 65% | 2244 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 42,076 psi | 67% | 2234 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 42,192 psi | 68% | 2241 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,029 psi | 61% | 2211 fps | 98.5% |
| Norma 204 | <<locked>> | 98% | 49,893 psi | 80% | 2428 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 31,473 psi | 50% | 2119 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 37,289 psi | 60% | 2221 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 37,347 psi | 60% | 2247 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,541 psi | 71% | 2283 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,077 psi | 71% | 2303 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,269 psi | 77% | 2323 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 43% | 1322 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,270 psi | 81% | 2346 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,305 psi | 63% | 2205 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,219 psi | 64% | 2306 fps | 98.5% |
| ReloadSwiss RS 60 | 49.3 gr | 80% | 32,967 psi | 53% | 2198 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,764 psi | 53% | 2175 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,389 psi | 57% | 2231 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 45,890 psi | 74% | 2264 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,030 psi | 64% | 2192 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,388 psi | 54% | 2123 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 44,150 psi | 71% | 2280 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 37,594 psi | 60% | 2175 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,713 psi | 67% | 2257 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,159 psi | 61% | 2178 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 40,306 psi | 65% | 2244 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,243 psi | 55% | 2165 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,902 psi | 69% | 2264 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,278 psi | 66% | 2247 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,424 psi | 70% | 2188 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,998 psi | 58% | 2080 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,047 psi | 67% | 2218 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,167 psi | 77% | 2346 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,105 psi | 69% | 2195 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,496 psi | 68% | 2260 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 34,360 psi | 55% | 2129 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 24,801 psi | 40% | 1982 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 49,066 psi | 79% | 2238 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,714 psi | 70% | 2185 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,262 psi | 63% | 2175 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,030 psi | 64% | 2185 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,605 psi | 52% | 2077 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 32,866 psi | 53% | 2119 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 44,904 psi | 72% | 2277 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,421 psi | 62% | 2178 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,213 psi | 52% | 2123 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 30,719 psi | 49% | 2156 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,834 psi | 46% | 2008 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 44,353 psi | 71% | 2316 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 40,785 psi | 65% | 2306 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,790 psi | 46% | 2156 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,567 psi | 65% | 2251 fps | 99.3% |
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 103 powders for 8.5 x 55 Blaser loaded with the .338 | 250gr | Rhino Solid Shank. Alliant Reloder-17 delivers the highest muzzle velocity at 2,582 fps; across all powders the maximum-charge window runs from 1,450 fps to 2,582 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:15.0 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 8.5 x 55 Blaser with the .338 | 250gr | Rhino Solid Shank 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.