Load Specifications
Load data in caliber 8 x 57 IRS with .3235 | 198gr | Prvi Partizan FMJ BT bullet and 64 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 Ramshot Big Game.
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% | 43,018 psi | 90% | 2343 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 42,830 psi | 89% | 2395 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 41,887 psi | 88% | 2398 fps | 99.7% |
| Accurate 4064 | <<locked>> | 90% | 42,815 psi | 89% | 2428 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 40,930 psi | 86% | 2454 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 84% | 42,090 psi | 88% | 2398 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 90% | 43,207 psi | 90% | 2402 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 41,742 psi | 87% | 2365 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 82% | 40,611 psi | 85% | 2365 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 40,901 psi | 85% | 2467 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 42,148 psi | 88% | 2421 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 88% | 42,757 psi | 89% | 2431 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 41,640 psi | 87% | 2461 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 41,843 psi | 87% | 2497 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,046 psi | 86% | 2398 fps | 96.2% |
| Bofors RP3 | <<locked>> | 90% | 41,510 psi | 87% | 2421 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 84% | 42,308 psi | 88% | 2428 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 43,004 psi | 90% | 2425 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 42,380 psi | 89% | 2408 fps | 98.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,437 psi | 84% | 2408 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 40,524 psi | 85% | 2428 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,505 psi | 72% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,988 psi | 86% | 2369 fps | 97.9% |
| IMR 3031 | <<locked>> | 84% | 41,466 psi | 87% | 2415 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 42,453 psi | 89% | 2382 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,206 psi | 88% | 2457 fps | 96.5% |
| IMR 4895 | <<locked>> | 86% | 41,162 psi | 86% | 2415 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 82% | 41,742 psi | 87% | 2365 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 43,265 psi | 90% | 2428 fps | 99.8% |
| Lovex S060 | <<locked>> | 84% | 42,844 psi | 90% | 2346 fps | 97.8% |
| Lovex S062 | <<locked>> | 88% | 41,974 psi | 88% | 2385 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 41,365 psi | 86% | 2359 fps | 98.6% |
| Norma 202 | <<locked>> | 84% | 41,336 psi | 86% | 2372 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 41,989 psi | 88% | 2421 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 41,452 psi | 87% | 2451 fps | 96% |
| Ramshot Big Game | <<locked>> | 88% | 41,756 psi | 87% | 2438 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 40,654 psi | 85% | 2382 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,983 psi | 73% | 1565 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 41,611 psi | 87% | 2474 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 41,829 psi | 87% | 2510 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 42,772 psi | 89% | 2362 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 86% | 41,814 psi | 87% | 2362 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 92% | 41,437 psi | 87% | 2411 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 43,265 psi | 90% | 2428 fps | 99.8% |
| Shooters World Precision | <<locked>> | 88% | 41,974 psi | 88% | 2385 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 43,105 psi | 90% | 2467 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 43,294 psi | 90% | 2418 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 40,669 psi | 85% | 2283 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 42,670 psi | 89% | 2329 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 42,583 psi | 89% | 2329 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 41,814 psi | 87% | 2382 fps | 97.5% |
| Somchem S355 | <<locked>> | 92% | 42,583 psi | 89% | 2418 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,247 psi | 82% | 2451 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 82% | 40,756 psi | 85% | 2283 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 43,163 psi | 90% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 41,727 psi | 87% | 2359 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 40,683 psi | 85% | 2362 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 96% | 40,973 psi | 86% | 2405 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 82% | 41,510 psi | 87% | 2359 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 88% | 42,786 psi | 89% | 2392 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 98% | 42,786 psi | 89% | 2457 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 41,945 psi | 88% | 2395 fps | 98% |
| Winchester 748 | <<locked>> | 84% | 43,120 psi | 90% | 2444 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 42,583 psi | 89% | 2425 fps | 98.3% |
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% | 40,669 psi | 85% | 2303 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,083 psi | 69% | 2221 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,117 psi | 82% | 2346 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 31,285 psi | 65% | 2205 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 38,014 psi | 79% | 2398 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 37,057 psi | 77% | 2300 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 35,810 psi | 75% | 2257 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,015 psi | 82% | 2316 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 37,927 psi | 79% | 2323 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 38,072 psi | 80% | 2405 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,632 psi | 64% | 2185 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,360 psi | 74% | 2287 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 39,247 psi | 82% | 2411 fps | 95.4% |
| Alliant Reloder-17 | 47.7 gr | 88% | 34,403 psi | 72% | 2336 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 38,421 psi | 80% | 2346 fps | 95.4% |
| Bofors RP3 | <<locked>> | 82% | 31,778 psi | 66% | 2224 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,970 psi | 77% | 2329 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 88% | 40,393 psi | 84% | 2379 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 37,304 psi | 78% | 2313 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,634 psi | 70% | 2267 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,388 psi | 70% | 2277 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,585 psi | 53% | 1362 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,042 psi | 75% | 2270 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 36,318 psi | 76% | 2323 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,273 psi | 74% | 2241 fps | 95.2% |
| IMR 4831 | <<locked>> | 98% | 39,378 psi | 82% | 2405 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 33,779 psi | 71% | 2264 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,015 psi | 82% | 2316 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 35,331 psi | 74% | 2283 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 37,985 psi | 79% | 2254 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 32,822 psi | 69% | 2201 fps | 96.5% |
| Norma 201 | <<locked>> | 80% | 36,579 psi | 76% | 2267 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 36,492 psi | 76% | 2283 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 34,751 psi | 73% | 2277 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 39,001 psi | 81% | 2405 fps | 95.3% |
| Ramshot Big Game | 46.2 gr | 84% | 36,390 psi | 76% | 2329 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,043 psi | 79% | 2329 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,860 psi | 54% | 1394 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 36,477 psi | 76% | 2369 fps | 95.5% |
| ReloadSwiss RS 60 | 43.4 gr | 80% | 28,427 psi | 59% | 2188 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 40,234 psi | 84% | 2316 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 34,795 psi | 73% | 2224 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 31,937 psi | 67% | 2221 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,331 psi | 74% | 2283 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 32,822 psi | 69% | 2201 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 35,607 psi | 74% | 2320 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,737 psi | 75% | 2274 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,189 psi | 80% | 2238 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,256 psi | 65% | 2116 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 37,768 psi | 79% | 2244 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 36,579 psi | 76% | 2283 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 33,257 psi | 69% | 2234 fps | 95.7% |
| Somchem S365 | <<locked>> | 92% | 30,661 psi | 64% | 2254 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 38,247 psi | 80% | 2241 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,504 psi | 70% | 2221 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,418 psi | 72% | 2224 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 27,688 psi | 58% | 2087 fps | 95% |
| Vihtavuori N160 | <<locked>> | 94% | 38,566 psi | 81% | 2359 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 39,015 psi | 82% | 2313 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 32,982 psi | 69% | 2208 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 40,045 psi | 84% | 2408 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,664 psi | 72% | 2251 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 37,869 psi | 79% | 2349 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,751 psi | 73% | 2274 fps | 96.3% |
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 86 powders for 8 x 57 IRS loaded with the .3235 | 198gr | Prvi Partizan FMJ BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,510 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,510 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 198.0 gr projectile in 0.3235" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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, Ramshot Big Game rank at the top here: for 8 x 57 IRS with the .3235 | 198gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.