Load Specifications
Load data in caliber 8 x 57 IRS with .323 | 175gr | Brenneke TAG bullet and 60 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 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.
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>> | 84% | 41,989 psi | 88% | 2507 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 42,975 psi | 90% | 2556 fps | 99.5% |
| Accurate 2495 | <<locked>> | 90% | 40,886 psi | 85% | 2546 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 40,799 psi | 85% | 2552 fps | 99% |
| Accurate 4064 | <<locked>> | 92% | 41,075 psi | 86% | 2579 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 41,307 psi | 86% | 2556 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 92% | 42,409 psi | 89% | 2556 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 40,988 psi | 86% | 2523 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 86% | 42,264 psi | 88% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 40,886 psi | 85% | 2569 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 41,829 psi | 87% | 2585 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 96% | 41,118 psi | 86% | 2648 fps | 96.6% |
| Bofors RP3 | <<locked>> | 94% | 43,134 psi | 90% | 2625 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 40,886 psi | 85% | 2480 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 41,408 psi | 87% | 2585 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 84% | 42,844 psi | 90% | 2661 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 41,597 psi | 87% | 2569 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 42,424 psi | 89% | 2635 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,997 psi | 71% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,888 psi | 90% | 2575 fps | 97.3% |
| IMR 3031 | <<locked>> | 88% | 42,989 psi | 90% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 41,698 psi | 87% | 2536 fps | 95.9% |
| IMR 4895 | <<locked>> | 90% | 42,801 psi | 89% | 2618 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 84% | 40,988 psi | 86% | 2523 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 82% | 42,772 psi | 89% | 2556 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 88% | 41,916 psi | 88% | 2585 fps | 99.2% |
| Lovex S060 | <<locked>> | 86% | 42,366 psi | 89% | 2507 fps | 96.7% |
| Lovex S062 | <<locked>> | 90% | 40,901 psi | 85% | 2539 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 43,047 psi | 90% | 2566 fps | 98.1% |
| Norma 202 | <<locked>> | 88% | 43,091 psi | 90% | 2579 fps | 99.6% |
| Norma 203B | <<locked>> | 90% | 41,031 psi | 86% | 2575 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 90% | 41,002 psi | 86% | 2589 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 86% | 42,728 psi | 89% | 2592 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 41,887 psi | 88% | 2520 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,011 psi | 71% | 1680 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 41,002 psi | 86% | 2661 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 41,336 psi | 86% | 2513 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 90% | 43,178 psi | 90% | 2559 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 96% | 43,018 psi | 90% | 2615 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 41,916 psi | 88% | 2585 fps | 99.2% |
| Shooters World Precision | <<locked>> | 90% | 40,901 psi | 85% | 2539 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 42,279 psi | 88% | 2621 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 42,482 psi | 89% | 2575 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 42,641 psi | 89% | 2490 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 41,800 psi | 87% | 2487 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 41,046 psi | 86% | 2546 fps | 97.9% |
| Somchem S335 | <<locked>> | 86% | 41,698 psi | 87% | 2490 fps | 99.8% |
| Somchem S341 | <<locked>> | 86% | 41,336 psi | 86% | 2543 fps | 96.2% |
| Somchem S355 | <<locked>> | 94% | 41,365 psi | 86% | 2569 fps | 97% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,795 psi | 75% | 2539 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 42,641 psi | 89% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 42,656 psi | 89% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 41,901 psi | 88% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 40,886 psi | 85% | 2520 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 96% | 42,598 psi | 89% | 2566 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 40,915 psi | 85% | 2520 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 90% | 41,800 psi | 87% | 2549 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 41,611 psi | 87% | 2546 fps | 96.7% |
| Winchester 748 | <<locked>> | 86% | 42,467 psi | 89% | 2612 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 41,713 psi | 87% | 2582 fps | 97.2% |
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% | 37,115 psi | 78% | 2418 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 39,943 psi | 83% | 2500 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 29,037 psi | 61% | 2300 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 35,389 psi | 74% | 2444 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 27,557 psi | 58% | 2277 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 84% | 38,696 psi | 81% | 2503 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 90% | 39,755 psi | 83% | 2503 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,158 psi | 76% | 2425 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 34,301 psi | 72% | 2438 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,576 psi | 70% | 2415 fps | 95% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,146 psi | 82% | 2533 fps | 95.1% |
| Alliant Reloder-17 | 53.4 gr | 94% | 38,319 psi | 80% | 2585 fps | 95.6% |
| Bofors RP3 | <<locked>> | 88% | 35,056 psi | 73% | 2464 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,363 psi | 80% | 2431 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,707 psi | 70% | 2425 fps | 96.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 39,900 psi | 83% | 2598 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 82% | 36,434 psi | 76% | 2461 fps | 95.6% |
| Hodgdon LEVERevolution | 47.6 gr | 84% | 34,940 psi | 73% | 2474 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,019 psi | 52% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,418 psi | 74% | 2421 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 32,822 psi | 69% | 2425 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 39,276 psi | 82% | 2490 fps | 95.2% |
| IMR 4895 | <<locked>> | 86% | 37,507 psi | 78% | 2510 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 36,158 psi | 76% | 2425 fps | 96.2% |
| Lovex D073.5 | <<locked>> | 80% | 39,784 psi | 83% | 2500 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 31,836 psi | 67% | 2375 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 37,463 psi | 78% | 2405 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 33,939 psi | 71% | 2392 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 33,228 psi | 69% | 2359 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 33,141 psi | 69% | 2379 fps | 97.9% |
| Norma 203B | <<locked>> | 88% | 38,421 psi | 80% | 2523 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 38,232 psi | 80% | 2533 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,304 psi | 78% | 2480 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,320 psi | 82% | 2467 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,135 psi | 53% | 1499 fps | 100% |
| ReloadSwiss RS 60 | 48.9 gr | 86% | 31,531 psi | 66% | 2425 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 36,666 psi | 77% | 2421 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 33,533 psi | 70% | 2359 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 34,998 psi | 73% | 2454 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,836 psi | 67% | 2375 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 33,939 psi | 71% | 2392 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,682 psi | 83% | 2569 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,318 psi | 78% | 2470 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,215 psi | 74% | 2346 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,572 psi | 60% | 2211 fps | 97.4% |
| Somchem S321 | <<locked>> | 80% | 38,493 psi | 80% | 2497 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 34,519 psi | 72% | 2349 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 38,479 psi | 80% | 2487 fps | 95.4% |
| Somchem S355 | <<locked>> | 90% | 36,419 psi | 76% | 2470 fps | 95.5% |
| Somchem S365 | <<locked>> | 98% | 33,504 psi | 70% | 2480 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 40,161 psi | 84% | 2434 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,259 psi | 74% | 2356 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 30,197 psi | 63% | 2316 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 31,430 psi | 66% | 2320 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 32,605 psi | 68% | 2365 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 35,737 psi | 75% | 2415 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 30,095 psi | 63% | 2303 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,856 psi | 81% | 2490 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 34,548 psi | 72% | 2448 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,347 psi | 76% | 2470 fps | 95.6% |
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 83 powders for 8 x 57 IRS loaded with the .323 | 175gr | Brenneke TAG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,680 fps. Accurate 4350 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.323" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. ReloadSwiss RS 60, Alliant Reloder-17, Hodgdon LEVERevolution rank at the top here: for 8 x 57 IRS with the .323 | 175gr | Brenneke TAG they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Reloder-16, Hodgdon H380 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.