Load Specifications
Load data in caliber 8 x 57 IRS with .323 | 196gr | Norma VULKAN bullet and 63 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.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 41,858 psi | 87% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 41,075 psi | 86% | 2372 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 43,265 psi | 90% | 2425 fps | 99.7% |
| Accurate 4064 | <<locked>> | 90% | 41,176 psi | 86% | 2405 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,959 psi | 88% | 2474 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 84% | 40,872 psi | 85% | 2375 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 90% | 41,814 psi | 87% | 2379 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 43,105 psi | 90% | 2392 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 84% | 41,785 psi | 87% | 2392 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 42,192 psi | 88% | 2490 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 40,625 psi | 85% | 2395 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,278 psi | 86% | 2405 fps | 96.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,772 psi | 89% | 2480 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 43,062 psi | 90% | 2520 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,438 psi | 89% | 2425 fps | 96.3% |
| Bofors RP3 | <<locked>> | 92% | 42,685 psi | 89% | 2444 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,540 psi | 89% | 2343 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,075 psi | 86% | 2408 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,076 psi | 88% | 2474 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 41,118 psi | 86% | 2388 fps | 97.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,986 psi | 81% | 2379 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,945 psi | 88% | 2454 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,374 psi | 72% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,395 psi | 89% | 2395 fps | 97.9% |
| IMR 3031 | <<locked>> | 86% | 42,438 psi | 89% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,249 psi | 86% | 2362 fps | 96.7% |
| IMR 4895 | <<locked>> | 88% | 42,250 psi | 88% | 2434 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 84% | 43,105 psi | 90% | 2392 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 41,626 psi | 87% | 2405 fps | 99.5% |
| Lovex S060 | <<locked>> | 84% | 41,684 psi | 87% | 2326 fps | 97.3% |
| Lovex S062 | <<locked>> | 88% | 40,712 psi | 85% | 2365 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 42,699 psi | 89% | 2385 fps | 98.6% |
| Norma 202 | <<locked>> | 86% | 42,670 psi | 89% | 2398 fps | 99.9% |
| Norma 203B | <<locked>> | 90% | 43,178 psi | 90% | 2444 fps | 97.7% |
| Norma URPᴾ | <<locked>> | 100% | 42,540 psi | 89% | 2470 fps | 96% |
| Ramshot Big Game | <<locked>> | 90% | 43,004 psi | 90% | 2461 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,003 psi | 88% | 2408 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,534 psi | 72% | 1558 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 43,018 psi | 90% | 2500 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 43,236 psi | 90% | 2533 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 41,379 psi | 86% | 2339 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 88% | 42,902 psi | 90% | 2382 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 94% | 42,554 psi | 89% | 2434 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 41,626 psi | 87% | 2405 fps | 99.5% |
| Shooters World Precision | <<locked>> | 88% | 40,712 psi | 85% | 2365 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,582 psi | 87% | 2441 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,872 psi | 87% | 2395 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,018 psi | 88% | 2310 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,220 psi | 86% | 2306 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 43,207 psi | 90% | 2415 fps | 98.9% |
| Somchem S335 | <<locked>> | 84% | 41,365 psi | 86% | 2313 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 40,451 psi | 85% | 2362 fps | 96.8% |
| Somchem S355 | <<locked>> | 92% | 41,075 psi | 86% | 2395 fps | 97.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,884 psi | 79% | 2425 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 84% | 42,032 psi | 88% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 41,713 psi | 87% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,859 psi | 90% | 2379 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 41,945 psi | 88% | 2385 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 42,917 psi | 90% | 2385 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 88% | 41,394 psi | 86% | 2375 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 40,567 psi | 85% | 2369 fps | 97.3% |
| Winchester 748 | <<locked>> | 84% | 41,843 psi | 87% | 2428 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,133 psi | 86% | 2402 fps | 97.7% |
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% | 39,247 psi | 82% | 2283 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,734 psi | 66% | 2198 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,782 psi | 79% | 2326 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 30,023 psi | 63% | 2178 fps | 98.1% |
| Accurate 4350 | <<locked>> | 98% | 39,146 psi | 82% | 2425 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 36,071 psi | 75% | 2280 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 36,941 psi | 77% | 2283 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,058 psi | 80% | 2300 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,709 psi | 77% | 2310 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,421 psi | 82% | 2434 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,473 psi | 66% | 2208 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,434 psi | 76% | 2310 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,495 psi | 85% | 2434 fps | 95.4% |
| Alliant Reloder-17 | 47.6 gr | 90% | 35,375 psi | 74% | 2359 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,682 psi | 83% | 2372 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 32,663 psi | 68% | 2251 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,263 psi | 84% | 2300 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,766 psi | 75% | 2306 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,320 psi | 82% | 2418 fps | 96% |
| Hodgdon H4895 | <<locked>> | 80% | 36,303 psi | 76% | 2293 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,606 psi | 72% | 2287 fps | 95.3% |
| Hodgdon LEVERevolution | 42.2 gr | 80% | 32,358 psi | 68% | 2254 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,498 psi | 53% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,867 psi | 73% | 2247 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 34,882 psi | 73% | 2300 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,347 psi | 76% | 2267 fps | 95.2% |
| IMR 4895 | <<locked>> | 82% | 34,954 psi | 73% | 2290 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,058 psi | 80% | 2300 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 34,026 psi | 71% | 2260 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 37,115 psi | 78% | 2238 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 31,836 psi | 67% | 2182 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 35,375 psi | 74% | 2244 fps | 97% |
| Norma 202 | <<locked>> | 80% | 35,244 psi | 74% | 2260 fps | 99% |
| Norma 203B | <<locked>> | 84% | 35,752 psi | 75% | 2300 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 39,929 psi | 83% | 2421 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 35,375 psi | 74% | 2310 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,680 psi | 77% | 2306 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 54% | 1394 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 37,594 psi | 79% | 2395 fps | 95.5% |
| ReloadSwiss RS 60 | 43.4 gr | 82% | 29,283 psi | 61% | 2211 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 38,899 psi | 81% | 2293 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 33,591 psi | 70% | 2201 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 86% | 32,808 psi | 69% | 2244 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,026 psi | 71% | 2260 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 31,836 psi | 67% | 2182 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,825 psi | 77% | 2346 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,577 psi | 72% | 2251 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,159 psi | 78% | 2221 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,342 psi | 63% | 2100 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 40,364 psi | 84% | 2365 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 36,535 psi | 76% | 2224 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 35,288 psi | 74% | 2260 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 34,243 psi | 72% | 2260 fps | 95.7% |
| Somchem S365 | <<locked>> | 94% | 31,502 psi | 66% | 2277 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 37,188 psi | 78% | 2228 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,358 psi | 68% | 2201 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,243 psi | 69% | 2201 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 28,500 psi | 60% | 2110 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,768 psi | 79% | 2290 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,908 psi | 67% | 2188 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,824 psi | 75% | 2274 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,622 psi | 77% | 2326 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,663 psi | 70% | 2251 fps | 95.5% |
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 63 powders for 8 x 57 IRS loaded with the .323 | 196gr | Norma VULKAN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,533 fps. Accurate 4350 gives the best case fill at 100 %, and 63 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 196.0 gr projectile in 0.323" calls for a 1:16.5 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 | 196gr | Norma VULKAN 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.