Load Specifications
Load data in caliber 8.5 x 55 Blaser with .338 | 225gr | CutEdge ESP Raptor bullet and 99 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 Hodgdon LEVERevolution.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 56,014 psi | 90% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 54,288 psi | 87% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 56,304 psi | 90% | 2549 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,115 psi | 90% | 2579 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 55,869 psi | 90% | 2585 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,744 psi | 72% | 2503 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 84% | 56,130 psi | 90% | 2448 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,258 psi | 85% | 2431 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,013 psi | 88% | 2582 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 98% | 55,985 psi | 90% | 2579 fps | 99.5% |
| ADI AR 2219 | <<locked>> | 82% | 53,142 psi | 85% | 2516 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,592 psi | 88% | 2546 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 54,302 psi | 87% | 2523 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,246 psi | 90% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,520 psi | 87% | 2687 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,245 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 55,869 psi | 90% | 2500 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,014 psi | 90% | 2618 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,092 psi | 72% | 2513 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,272 psi | 84% | 2657 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,201 psi | 89% | 2448 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,998 psi | 88% | 2602 fps | 99.3% |
| Bofors RP3 | <<locked>> | 98% | 55,434 psi | 89% | 2612 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2530 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,287 psi | 85% | 2487 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,881 psi | 85% | 2569 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,071 psi | 88% | 2661 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 86% | 55,288 psi | 89% | 2543 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,634 psi | 84% | 2523 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,432 psi | 86% | 2572 fps | 98.6% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2552 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 92% | 55,477 psi | 89% | 2592 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,336 psi | 66% | 2411 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,244 psi | 87% | 2621 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,635 psi | 56% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,548 psi | 86% | 2549 fps | 99.8% |
| IMR 3031 | <<locked>> | 92% | 54,723 psi | 88% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,506 psi | 89% | 2562 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,434 psi | 90% | 2546 fps | 97% |
| IMR 4198 | <<locked>> | 84% | 53,447 psi | 86% | 2425 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2559 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,105 psi | 69% | 2457 fps | 97.4% |
| IMR 4895 | <<locked>> | 94% | 54,012 psi | 87% | 2602 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 90% | 54,592 psi | 88% | 2546 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 54,476 psi | 87% | 2533 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 53,867 psi | 86% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,521 psi | 89% | 2523 fps | 99.8% |
| Lovex S062 | <<locked>> | 96% | 54,650 psi | 88% | 2559 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2507 fps | 97.4% |
| Norma 200 | <<locked>> | 82% | 55,608 psi | 89% | 2474 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,693 psi | 86% | 2533 fps | 100% |
| Norma 202 | <<locked>> | 92% | 53,969 psi | 87% | 2536 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,071 psi | 88% | 2605 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 45,121 psi | 72% | 2500 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 96% | 55,593 psi | 89% | 2631 fps | 99.7% |
| Ramshot TAC | <<locked>> | 90% | 54,940 psi | 88% | 2559 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,983 psi | 87% | 2575 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,724 psi | 89% | 2549 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,708 psi | 56% | 1549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,143 psi | 87% | 2530 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,447 psi | 87% | 2559 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 56,043 psi | 90% | 2677 fps | 99.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2713 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,817 psi | 72% | 2523 fps | 97.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,151 psi | 74% | 2543 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 90% | 54,636 psi | 88% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 53,896 psi | 86% | 2530 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 54,969 psi | 88% | 2598 fps | 99.9% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2530 fps | 95.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2507 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,867 psi | 86% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,650 psi | 88% | 2559 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,259 psi | 87% | 2507 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,417 psi | 86% | 2526 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,548 psi | 86% | 2612 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,882 psi | 86% | 2480 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,663 psi | 84% | 2533 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,330 psi | 86% | 2556 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 55,970 psi | 90% | 2484 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,579 psi | 89% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2464 fps | 96% |
| Somchem S321 | <<locked>> | 88% | 55,753 psi | 89% | 2579 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,013 psi | 88% | 2484 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,231 psi | 90% | 2579 fps | 99.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2598 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,987 psi | 64% | 2454 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 88% | 55,796 psi | 89% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,956 psi | 90% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,040 psi | 85% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,679 psi | 88% | 2520 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,940 psi | 86% | 2539 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2503 fps | 98% |
| Vihtavuori N530 | <<locked>> | 90% | 54,969 psi | 88% | 2543 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 56,130 psi | 90% | 2559 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,644 psi | 75% | 2507 fps | 97.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,834 psi | 78% | 2493 fps | 99.5% |
| Winchester 748 | <<locked>> | 90% | 54,244 psi | 87% | 2589 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 48,965 psi | 79% | 2559 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,011 psi | 85% | 2566 fps | 99.8% |
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% | 40,973 psi | 66% | 2290 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,367 psi | 71% | 2382 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,982 psi | 53% | 2205 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,610 psi | 64% | 2339 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 31,241 psi | 50% | 2192 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 36,260 psi | 58% | 2352 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 49,748 psi | 80% | 2365 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,140 psi | 80% | 2388 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,637 psi | 60% | 2300 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 34,258 psi | 55% | 2211 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 49,661 psi | 80% | 2470 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,682 psi | 64% | 2313 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 38,711 psi | 62% | 2313 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,977 psi | 74% | 2490 fps | 99.3% |
| Alliant Power Pro 2000-MR | 50.4 gr | 82% | 36,158 psi | 58% | 2352 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,850 psi | 49% | 2175 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,601 psi | 75% | 2379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 33,518 psi | 54% | 2231 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 37,666 psi | 60% | 2369 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 86% | 32,677 psi | 52% | 2287 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,501 psi | 78% | 2365 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,492 psi | 59% | 2293 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 30,066 psi | 48% | 2172 fps | 95.8% |
| Bofors RP7 | <<locked>> | 98% | 49,647 psi | 80% | 2477 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,800 psi | 67% | 2313 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,608 psi | 60% | 2326 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,597 psi | 67% | 2448 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 45,281 psi | 73% | 2408 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,093 psi | 74% | 2431 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 38,247 psi | 61% | 2323 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 98% | 45,774 psi | 73% | 2507 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 37,884 psi | 61% | 2310 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,039 psi | 51% | 2221 fps | 95.6% |
| Hodgdon LEVERevolution | 48.2 gr | 80% | 33,721 psi | 54% | 2270 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,657 psi | 41% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,477 psi | 58% | 2267 fps | 97.3% |
| IMR 3031 | <<locked>> | 80% | 36,753 psi | 59% | 2313 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,518 psi | 54% | 2192 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,717 psi | 75% | 2405 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 47,398 psi | 76% | 2346 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 48,965 psi | 79% | 2470 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 35,259 psi | 57% | 2310 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 34,287 psi | 55% | 2260 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,682 psi | 64% | 2313 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 44,295 psi | 71% | 2388 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 35,781 psi | 57% | 2280 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 38,421 psi | 62% | 2251 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 33,040 psi | 53% | 2195 fps | 97.2% |
| Lovex S065 | <<locked>> | 94% | 41,901 psi | 67% | 2365 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 52,344 psi | 84% | 2434 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,738 psi | 59% | 2260 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 36,811 psi | 59% | 2274 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 32,909 psi | 53% | 2224 fps | 95.7% |
| Norma URP | <<locked>> | 94% | 37,217 psi | 60% | 2356 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 32,387 psi | 52% | 2231 fps | 95.1% |
| Ramshot TAC | <<locked>> | 82% | 42,148 psi | 68% | 2359 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,696 psi | 62% | 2329 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,975 psi | 69% | 2356 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,817 psi | 41% | 1385 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,643 psi | 72% | 2392 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 44,701 psi | 72% | 2411 fps | 95.3% |
| ReloadSwiss RS 52 | 47.7 gr | 80% | 34,548 psi | 55% | 2313 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 28,500 psi | 46% | 2185 fps | 96.4% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,088 psi | 63% | 2421 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,178 psi | 69% | 2490 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 40,364 psi | 65% | 2303 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 34,838 psi | 56% | 2215 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 30,168 psi | 48% | 2169 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 98% | 49,647 psi | 80% | 2477 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 41,901 psi | 67% | 2365 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,781 psi | 57% | 2280 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 33,040 psi | 53% | 2195 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,181 psi | 76% | 2405 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,067 psi | 80% | 2480 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 33,881 psi | 54% | 2270 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,485 psi | 76% | 2398 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,045 psi | 64% | 2329 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,187 psi | 58% | 2270 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,624 psi | 62% | 2231 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,604 psi | 51% | 2110 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 47,427 psi | 76% | 2415 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 42,409 psi | 68% | 2382 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 38,014 psi | 61% | 2234 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,144 psi | 60% | 2283 fps | 96.9% |
| Somchem S355 | <<locked>> | 82% | 31,430 psi | 50% | 2182 fps | 95.7% |
| Somchem S365 | <<locked>> | 90% | 29,066 psi | 47% | 2208 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 43,918 psi | 70% | 2297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,812 psi | 62% | 2234 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,939 psi | 54% | 2211 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,896 psi | 56% | 2218 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 27,905 psi | 45% | 2083 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 92% | 36,695 psi | 59% | 2310 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 39,523 psi | 63% | 2310 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 33,402 psi | 54% | 2205 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 38,319 psi | 61% | 2362 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,837 psi | 53% | 2201 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 38,348 psi | 61% | 2343 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 45,774 psi | 73% | 2507 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,244 psi | 57% | 2270 fps | 97.1% |
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 99 powders for 8.5 x 55 Blaser loaded with the .338 | 225gr | CutEdge ESP Raptor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,713 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 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 1:13.5 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, Hodgdon LEVERevolution rank at the top here: for 8.5 x 55 Blaser with the .338 | 225gr | CutEdge ESP Raptor 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.