Load Specifications
Load data in caliber 8.5 x 55 Blaser with .338 | 220gr | Peregrine VRG-3 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.
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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% | 53,679 psi | 86% | 2513 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,608 psi | 89% | 2582 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,128 psi | 87% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,635 psi | 86% | 2595 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 55,506 psi | 89% | 2569 fps | 96% |
| Accurate 4064 | <<locked>> | 96% | 53,983 psi | 87% | 2608 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,137 psi | 74% | 2569 fps | 98% |
| Accurate LT-30 | <<locked>> | 82% | 53,737 psi | 86% | 2464 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,143 psi | 87% | 2487 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,159 psi | 90% | 2644 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 53,708 psi | 86% | 2595 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 54,157 psi | 87% | 2575 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,535 psi | 89% | 2605 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 55,666 psi | 89% | 2585 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,635 psi | 86% | 2654 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,811 psi | 89% | 2756 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 53,040 psi | 85% | 2615 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,838 psi | 86% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 53,751 psi | 86% | 2635 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,325 psi | 74% | 2582 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2723 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,304 psi | 90% | 2510 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,028 psi | 90% | 2664 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 53,287 psi | 85% | 2628 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 54,128 psi | 87% | 2592 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,360 psi | 87% | 2546 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,462 psi | 87% | 2635 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 52,620 psi | 84% | 2671 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 84% | 53,026 psi | 85% | 2559 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,954 psi | 87% | 2585 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,882 psi | 88% | 2641 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 50,024 psi | 80% | 2621 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 53,214 psi | 85% | 2608 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,308 psi | 68% | 2470 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,434 psi | 89% | 2687 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 56% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,679 psi | 88% | 2612 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 56,289 psi | 90% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,403 psi | 86% | 2582 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,114 psi | 87% | 2562 fps | 96.7% |
| IMR 4198 | <<locked>> | 84% | 54,331 psi | 87% | 2484 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 56,405 psi | 90% | 2625 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,164 psi | 71% | 2516 fps | 97.7% |
| IMR 4895 | <<locked>> | 94% | 55,143 psi | 88% | 2664 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 90% | 55,535 psi | 89% | 2605 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 55,651 psi | 89% | 2595 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,259 psi | 89% | 2625 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,405 psi | 90% | 2582 fps | 99.8% |
| Lovex S062 | <<locked>> | 96% | 56,101 psi | 90% | 2625 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,517 psi | 83% | 2566 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2546 fps | 96% |
| Norma 201 | <<locked>> | 92% | 54,679 psi | 88% | 2595 fps | 100% |
| Norma 202 | <<locked>> | 92% | 55,245 psi | 89% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,362 psi | 90% | 2671 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 46,412 psi | 74% | 2566 fps | 98% |
| Ramshot Big Game | <<locked>> | 94% | 53,345 psi | 86% | 2648 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,687 psi | 73% | 2556 fps | 95.9% |
| Ramshot TAC | <<locked>> | 90% | 56,289 psi | 90% | 2625 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,216 psi | 89% | 2638 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,388 psi | 86% | 2562 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 56% | 1588 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,230 psi | 89% | 2589 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,695 psi | 89% | 2625 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,766 psi | 86% | 2694 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,403 psi | 86% | 2726 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,064 psi | 74% | 2589 fps | 97.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,384 psi | 76% | 2615 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 90% | 55,608 psi | 89% | 2579 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,100 psi | 88% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 52,895 psi | 85% | 2615 fps | 99.9% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 54,128 psi | 87% | 2592 fps | 96.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,517 psi | 83% | 2566 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,259 psi | 89% | 2625 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,101 psi | 90% | 2625 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2546 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,201 psi | 89% | 2566 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,534 psi | 87% | 2589 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,172 psi | 88% | 2677 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,955 psi | 88% | 2539 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,143 psi | 87% | 2598 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,563 psi | 87% | 2621 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,780 psi | 86% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 53,403 psi | 86% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,272 psi | 84% | 2526 fps | 96.3% |
| Somchem S321 | <<locked>> | 86% | 53,345 psi | 86% | 2595 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,898 psi | 90% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,534 psi | 86% | 2592 fps | 99.6% |
| Somchem S355 | <<locked>> | 98% | 53,722 psi | 86% | 2618 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,118 psi | 66% | 2520 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 86% | 53,621 psi | 86% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,853 psi | 86% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,549 psi | 87% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,840 psi | 90% | 2579 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,317 psi | 89% | 2602 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,863 psi | 78% | 2566 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 90% | 56,202 psi | 90% | 2608 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 54,056 psi | 87% | 2579 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 2569 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,009 psi | 80% | 2559 fps | 99.7% |
| Winchester 748 | <<locked>> | 90% | 55,637 psi | 89% | 2651 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 50,299 psi | 81% | 2625 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,201 psi | 87% | 2628 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% | 41,742 psi | 67% | 2346 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,339 psi | 73% | 2441 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,895 psi | 54% | 2260 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,553 psi | 65% | 2398 fps | 99.8% |
| Accurate 2700 | <<locked>> | 92% | 51,808 psi | 83% | 2516 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 32,126 psi | 52% | 2247 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 37,260 psi | 60% | 2411 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 50,415 psi | 81% | 2421 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,807 psi | 81% | 2441 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,377 psi | 62% | 2356 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 34,940 psi | 56% | 2267 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 50,705 psi | 81% | 2530 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,480 psi | 65% | 2369 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 39,537 psi | 63% | 2369 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,978 psi | 75% | 2552 fps | 99.4% |
| Alliant Power Pro 2000-MR | 52.5 gr | 82% | 36,985 psi | 59% | 2415 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,647 psi | 51% | 2234 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,456 psi | 76% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,272 psi | 55% | 2290 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,158 psi | 58% | 2375 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,285 psi | 50% | 2290 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,487 psi | 79% | 2421 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,391 psi | 60% | 2356 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 30,748 psi | 49% | 2228 fps | 96.1% |
| Bofors RP7 | <<locked>> | 98% | 50,734 psi | 81% | 2543 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,598 psi | 68% | 2369 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,435 psi | 62% | 2382 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,612 psi | 68% | 2507 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 46,441 psi | 74% | 2467 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,992 psi | 75% | 2487 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 39,146 psi | 63% | 2382 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 46,920 psi | 75% | 2572 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 38,667 psi | 62% | 2365 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 30,879 psi | 50% | 2231 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,708 psi | 56% | 2333 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 41% | 1381 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,434 psi | 60% | 2326 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 37,739 psi | 61% | 2372 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,287 psi | 55% | 2247 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,543 psi | 76% | 2461 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 48,167 psi | 77% | 2402 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,050 psi | 75% | 2484 fps | 95% |
| IMR 4831 | <<locked>> | 94% | 36,347 psi | 58% | 2372 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,041 psi | 56% | 2316 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,480 psi | 65% | 2369 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 45,150 psi | 72% | 2444 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 36,695 psi | 59% | 2336 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,189 psi | 63% | 2306 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 33,837 psi | 54% | 2254 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 42,873 psi | 69% | 2425 fps | 95.7% |
| Lovex S070 | <<locked>> | 98% | 45,934 psi | 74% | 2497 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 37,579 psi | 60% | 2316 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 37,623 psi | 60% | 2329 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 33,620 psi | 54% | 2280 fps | 96% |
| Norma URP | <<locked>> | 92% | 35,737 psi | 57% | 2365 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,040 psi | 53% | 2283 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 98% | 42,960 psi | 69% | 2507 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 40,408 psi | 65% | 2365 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,436 psi | 63% | 2385 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,947 psi | 70% | 2415 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 41% | 1414 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,658 psi | 73% | 2454 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 45,643 psi | 73% | 2470 fps | 95.6% |
| ReloadSwiss RS 52 | 49.7 gr | 80% | 35,418 psi | 57% | 2375 fps | 95.9% |
| ReloadSwiss RS 60 | 50.5 gr | 80% | 29,254 psi | 47% | 2247 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,405 psi | 60% | 2428 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 41,278 psi | 66% | 2500 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 41,104 psi | 66% | 2359 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,679 psi | 57% | 2270 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 28,993 psi | 46% | 2178 fps | 95% |
| Rottweil R 907 | <<locked>> | 98% | 50,734 psi | 81% | 2543 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 42,873 psi | 69% | 2425 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,695 psi | 59% | 2336 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 33,837 psi | 54% | 2254 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 45,934 psi | 74% | 2497 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,022 psi | 77% | 2464 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,952 psi | 82% | 2539 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,387 psi | 52% | 2274 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,370 psi | 78% | 2454 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,159 psi | 61% | 2336 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,028 psi | 59% | 2329 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,349 psi | 63% | 2287 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,271 psi | 52% | 2162 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,762 psi | 78% | 2477 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 43,439 psi | 70% | 2441 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 38,798 psi | 62% | 2290 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,058 psi | 61% | 2339 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 30,211 psi | 48% | 2192 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 27,891 psi | 45% | 2211 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 44,715 psi | 72% | 2352 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,552 psi | 63% | 2287 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,722 psi | 56% | 2267 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,679 psi | 57% | 2274 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 28,587 psi | 46% | 2136 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 37,579 psi | 60% | 2369 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,306 psi | 65% | 2365 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,258 psi | 55% | 2260 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 36,680 psi | 59% | 2372 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,459 psi | 50% | 2208 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 39,494 psi | 63% | 2405 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 46,920 psi | 75% | 2572 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,056 psi | 58% | 2326 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 111 powders for 8.5 x 55 Blaser loaded with the .338 | 220gr | Peregrine VRG-3. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,756 fps. Accurate 4350 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. The 220.0 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 52, ReloadSwiss RS 60 rank at the top here: for 8.5 x 55 Blaser with the .338 | 220gr | Peregrine VRG-3 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, IMR 4350, Norma 204 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.