Load Specifications
Load data in caliber 8 x 57 IS with .321 | 180gr | Frontier PH HPFB bullet and 80 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 CFE223.
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>> | 90% | 50,676 psi | 90% | 2572 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 51,111 psi | 90% | 2644 fps | 97.5% |
| Accurate 2460 | <<locked>> | 86% | 49,153 psi | 87% | 2589 fps | 99.9% |
| Accurate 2495 | <<locked>> | 96% | 50,111 psi | 89% | 2621 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 49,893 psi | 88% | 2638 fps | 99.8% |
| Accurate 4064 | <<locked>> | 98% | 49,676 psi | 88% | 2651 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 48,472 psi | 86% | 2484 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 48,849 psi | 86% | 2497 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 92% | 49,574 psi | 88% | 2635 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 98% | 50,415 psi | 89% | 2625 fps | 97.5% |
| ADI AR 2219 | <<locked>> | 84% | 51,082 psi | 90% | 2631 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 49,255 psi | 87% | 2602 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 92% | 51,140 psi | 90% | 2644 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 50,343 psi | 89% | 2697 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 48,747 psi | 86% | 2713 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 49,182 psi | 87% | 2648 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 86% | 51,082 psi | 90% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 50,227 psi | 89% | 2667 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,572 psi | 82% | 2684 fps | 97.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 50,401 psi | 89% | 2526 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 48,892 psi | 86% | 2641 fps | 96.8% |
| Bofors RP3 | <<locked>> | 98% | 49,153 psi | 87% | 2661 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 48,805 psi | 86% | 2549 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 50,517 psi | 89% | 2674 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 88% | 48,994 psi | 87% | 2703 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 86% | 49,806 psi | 88% | 2615 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 50,792 psi | 90% | 2638 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 51,010 psi | 90% | 2664 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 92% | 49,908 psi | 88% | 2648 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 48,066 psi | 85% | 2667 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,040 psi | 60% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 48,472 psi | 86% | 2605 fps | 98.3% |
| IMR 3031 | <<locked>> | 92% | 48,428 psi | 86% | 2644 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 49,908 psi | 88% | 2612 fps | 97.7% |
| IMR 4198 | <<locked>> | 84% | 48,907 psi | 86% | 2513 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 48,356 psi | 85% | 2651 fps | 98% |
| IMR 8208 XBR | <<locked>> | 90% | 49,255 psi | 87% | 2602 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 86% | 49,008 psi | 87% | 2592 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 94% | 51,111 psi | 90% | 2667 fps | 99.9% |
| Lovex S060 | <<locked>> | 92% | 50,749 psi | 90% | 2582 fps | 98.2% |
| Lovex S062 | <<locked>> | 96% | 49,371 psi | 87% | 2618 fps | 99% |
| Norma 200 | <<locked>> | 82% | 50,937 psi | 90% | 2559 fps | 100% |
| Norma 201 | <<locked>> | 92% | 48,501 psi | 86% | 2589 fps | 98.9% |
| Norma 202 | <<locked>> | 92% | 48,762 psi | 86% | 2605 fps | 99.9% |
| Norma 203B | <<locked>> | 96% | 49,298 psi | 87% | 2654 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 96% | 49,472 psi | 87% | 2674 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 48,573 psi | 86% | 2625 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 50,647 psi | 90% | 2602 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,142 psi | 60% | 1631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 49,066 psi | 87% | 2595 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 49,226 psi | 87% | 2717 fps | 97.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 49,763 psi | 88% | 2753 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 90% | 49,806 psi | 88% | 2589 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 94% | 48,733 psi | 86% | 2585 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 48,675 psi | 86% | 2644 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 94% | 51,111 psi | 90% | 2667 fps | 99.9% |
| Shooters World Precision | <<locked>> | 96% | 49,371 psi | 87% | 2618 fps | 99% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 48,950 psi | 87% | 2559 fps | 98.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 48,312 psi | 85% | 2595 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 50,821 psi | 90% | 2703 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 48,747 psi | 86% | 2556 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 50,850 psi | 90% | 2628 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 51,126 psi | 90% | 2654 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 51,169 psi | 90% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 50,198 psi | 89% | 2549 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 50,053 psi | 88% | 2635 fps | 99.2% |
| Somchem S335 | <<locked>> | 92% | 49,922 psi | 88% | 2552 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 50,009 psi | 88% | 2625 fps | 98% |
| Somchem S355ᴾ | <<locked>> | 100% | 49,617 psi | 88% | 2644 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,723 psi | 63% | 2470 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 88% | 51,010 psi | 90% | 2536 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 50,894 psi | 90% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 50,343 psi | 89% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 48,907 psi | 86% | 2582 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,080 psi | 85% | 2589 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 90% | 49,603 psi | 88% | 2602 fps | 99% |
| Vihtavuori N540 | <<locked>> | 96% | 50,517 psi | 89% | 2628 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,092 psi | 78% | 2526 fps | 97.2% |
| Winchester 748 | <<locked>> | 90% | 48,269 psi | 85% | 2644 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 94% | 50,589 psi | 89% | 2664 fps | 98.7% |
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% | 37,202 psi | 66% | 2356 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 47,935 psi | 85% | 2592 fps | 96.9% |
| Accurate 2460 | <<locked>> | 80% | 40,059 psi | 71% | 2438 fps | 99% |
| Accurate 2495 | <<locked>> | 80% | 29,675 psi | 52% | 2254 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 35,418 psi | 63% | 2382 fps | 97.8% |
| Accurate 4064 | <<locked>> | 80% | 28,094 psi | 50% | 2231 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 80% | 45,861 psi | 81% | 2441 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,238 psi | 82% | 2457 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 38,609 psi | 68% | 2434 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 92% | 42,293 psi | 75% | 2487 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 44,672 psi | 79% | 2536 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,100 psi | 64% | 2359 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 80% | 34,287 psi | 61% | 2375 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,292 psi | 73% | 2536 fps | 97% |
| Alliant Power Pro 2000-MR | 49.2 gr | 90% | 42,656 psi | 75% | 2598 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,969 psi | 64% | 2408 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,511 psi | 75% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 41,510 psi | 73% | 2516 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,116 psi | 67% | 2513 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,396 psi | 78% | 2434 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 42,844 psi | 76% | 2533 fps | 95.3% |
| Bofors RP3 | <<locked>> | 88% | 35,157 psi | 62% | 2405 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,421 psi | 68% | 2365 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,794 psi | 60% | 2365 fps | 96.1% |
| Hodgdon CFE223 | 45.9 gr | 82% | 39,784 psi | 70% | 2530 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 40,857 psi | 72% | 2470 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,481 psi | 73% | 2487 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 94% | 44,672 psi | 79% | 2559 fps | 95% |
| Hodgdon H4895 | <<locked>> | 82% | 36,521 psi | 65% | 2398 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,867 psi | 62% | 2408 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,121 psi | 44% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,695 psi | 67% | 2408 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 32,837 psi | 58% | 2362 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 39,247 psi | 69% | 2425 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 43,279 psi | 77% | 2428 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,536 psi | 66% | 2448 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 36,100 psi | 64% | 2359 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 80% | 39,958 psi | 71% | 2438 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 31,879 psi | 56% | 2316 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 37,623 psi | 67% | 2346 fps | 95.1% |
| Lovex S062 | <<locked>> | 84% | 34,084 psi | 60% | 2333 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 47,863 psi | 85% | 2516 fps | 100% |
| Norma 201 | <<locked>> | 80% | 33,533 psi | 59% | 2303 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 33,315 psi | 59% | 2320 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 38,276 psi | 68% | 2454 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 90% | 40,567 psi | 72% | 2513 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,740 psi | 70% | 2467 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,088 psi | 69% | 2398 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,324 psi | 45% | 1457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,553 psi | 72% | 2448 fps | 98.6% |
| ReloadSwiss RS 52 | 46.7 gr | 88% | 40,466 psi | 72% | 2556 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,531 psi | 56% | 2362 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 36,999 psi | 65% | 2362 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 33,895 psi | 60% | 2303 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 35,070 psi | 62% | 2395 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,879 psi | 56% | 2316 fps | 96.7% |
| Shooters World Precision | <<locked>> | 84% | 34,084 psi | 60% | 2333 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,960 psi | 76% | 2461 fps | 97.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,194 psi | 80% | 2543 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,465 psi | 70% | 2500 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,844 psi | 76% | 2464 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 47,427 psi | 84% | 2575 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,711 psi | 70% | 2457 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,244 psi | 62% | 2283 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,616 psi | 51% | 2152 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 38,290 psi | 68% | 2428 fps | 97.1% |
| Somchem S335 | <<locked>> | 80% | 34,737 psi | 61% | 2290 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 38,203 psi | 68% | 2418 fps | 95.1% |
| Somchem S355 | <<locked>> | 90% | 36,463 psi | 64% | 2408 fps | 95.4% |
| Somchem S365 | <<locked>> | 98% | 33,446 psi | 59% | 2415 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 40,045 psi | 71% | 2369 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,172 psi | 62% | 2293 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,240 psi | 53% | 2257 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,401 psi | 56% | 2260 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 88% | 32,619 psi | 58% | 2303 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 35,766 psi | 63% | 2349 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 30,255 psi | 53% | 2247 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,508 psi | 68% | 2418 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 34,490 psi | 61% | 2382 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,303 psi | 64% | 2408 fps | 95.4% |
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 80 powders for 8 x 57 IS loaded with the .321 | 180gr | Frontier PH HPFB. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,753 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.321" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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 CFE223 rank at the top here: for 8 x 57 IS with the .321 | 180gr | Frontier PH HPFB 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.