Load Specifications
Load data in caliber 8 x 56 R M 89 Port. Krop. with .323 | 200gr | Nosler AccuBond bullet and 65 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 2495 | <<locked>> | 88% | 44,614 psi | 90% | 2415 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 43,540 psi | 88% | 2421 fps | 99.9% |
| Accurate 4064 | <<locked>> | 90% | 44,556 psi | 90% | 2451 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 42,844 psi | 87% | 2487 fps | 97% |
| ADI AR 2206H | <<locked>> | 84% | 43,598 psi | 88% | 2425 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 88% | 41,800 psi | 85% | 2375 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,989 psi | 87% | 2388 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 82% | 42,206 psi | 86% | 2385 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,206 psi | 86% | 2497 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 43,685 psi | 89% | 2444 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 88% | 44,266 psi | 90% | 2457 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,091 psi | 87% | 2490 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,337 psi | 88% | 2526 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,627 psi | 86% | 2428 fps | 97% |
| Bofors RP3 | <<locked>> | 90% | 43,352 psi | 88% | 2451 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 84% | 44,106 psi | 89% | 2457 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 88% | 41,843 psi | 85% | 2405 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 84% | 43,947 psi | 89% | 2434 fps | 98.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,974 psi | 85% | 2438 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,192 psi | 86% | 2454 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 70% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,177 psi | 86% | 2392 fps | 98.4% |
| IMR 3031 | <<locked>> | 84% | 42,989 psi | 87% | 2434 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 43,918 psi | 89% | 2408 fps | 97.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,845 psi | 89% | 2487 fps | 97.3% |
| IMR 4895 | <<locked>> | 86% | 42,685 psi | 87% | 2441 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 82% | 42,989 psi | 87% | 2388 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 84% | 41,930 psi | 85% | 2405 fps | 99.8% |
| Lovex S060 | <<locked>> | 84% | 44,251 psi | 90% | 2372 fps | 98.4% |
| Lovex S062 | <<locked>> | 88% | 43,497 psi | 88% | 2411 fps | 99.2% |
| Norma 201 | <<locked>> | 84% | 42,627 psi | 86% | 2382 fps | 99.1% |
| Norma 202 | <<locked>> | 84% | 42,902 psi | 87% | 2395 fps | 100% |
| Norma 203B | <<locked>> | 88% | 43,526 psi | 88% | 2448 fps | 98.3% |
| Norma URP | <<locked>> | 98% | 43,076 psi | 87% | 2484 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 88% | 43,120 psi | 87% | 2461 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,076 psi | 85% | 2408 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 71% | 1572 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 43,250 psi | 88% | 2503 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,337 psi | 88% | 2539 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,757 psi | 87% | 2503 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 82% | 44,135 psi | 90% | 2382 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 43,062 psi | 87% | 2382 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 92% | 43,236 psi | 88% | 2444 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 41,930 psi | 85% | 2405 fps | 99.8% |
| Shooters World Precision | <<locked>> | 88% | 43,497 psi | 88% | 2411 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,945 psi | 85% | 2448 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,729 psi | 89% | 2408 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,930 psi | 85% | 2395 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 44,599 psi | 90% | 2346 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 44,164 psi | 90% | 2349 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 43,816 psi | 89% | 2346 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 43,511 psi | 88% | 2411 fps | 98.2% |
| Somchem S355 | <<locked>> | 92% | 44,324 psi | 90% | 2448 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,017 psi | 83% | 2487 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 82% | 42,061 psi | 85% | 2303 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,192 psi | 86% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,265 psi | 88% | 2379 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 42,409 psi | 86% | 2388 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 96% | 42,511 psi | 86% | 2434 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 82% | 43,018 psi | 87% | 2385 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 88% | 44,208 psi | 90% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 44,411 psi | 90% | 2487 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,468 psi | 88% | 2428 fps | 98.7% |
| Winchester 748 | <<locked>> | 82% | 42,105 psi | 85% | 2425 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 44,034 psi | 89% | 2448 fps | 98.8% |
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 2495 | <<locked>> | 80% | 34,476 psi | 70% | 2244 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,698 psi | 83% | 2372 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 32,619 psi | 66% | 2231 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 37,304 psi | 76% | 2385 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 38,508 psi | 78% | 2329 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 34,940 psi | 71% | 2241 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,480 psi | 82% | 2343 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 39,494 psi | 80% | 2343 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,072 psi | 75% | 2385 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,807 psi | 65% | 2211 fps | 96.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,389 psi | 70% | 2264 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,348 psi | 78% | 2395 fps | 95.6% |
| Alliant Reloder-17 | 47.7 gr | 86% | 33,475 psi | 68% | 2316 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,246 psi | 76% | 2323 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 30,995 psi | 63% | 2205 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,406 psi | 78% | 2356 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 86% | 39,131 psi | 79% | 2356 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 38,754 psi | 79% | 2339 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,779 psi | 66% | 2247 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,693 psi | 70% | 2306 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,701 psi | 52% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,202 psi | 75% | 2293 fps | 97.3% |
| IMR 3031 | <<locked>> | 80% | 37,768 psi | 77% | 2346 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,258 psi | 69% | 2221 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 36,303 psi | 74% | 2346 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 35,186 psi | 71% | 2293 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 80% | 40,480 psi | 82% | 2343 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 36,840 psi | 75% | 2313 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 39,102 psi | 79% | 2277 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 33,982 psi | 69% | 2228 fps | 97.2% |
| Norma 201 | <<locked>> | 80% | 37,840 psi | 77% | 2293 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 37,739 psi | 77% | 2303 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 33,794 psi | 69% | 2254 fps | 95.7% |
| Norma URP | <<locked>> | 94% | 37,942 psi | 77% | 2385 fps | 95.4% |
| Ramshot Big Game | 45 gr | 80% | 33,112 psi | 67% | 2257 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,436 psi | 80% | 2359 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,976 psi | 53% | 1398 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,447 psi | 72% | 2346 fps | 95.6% |
| ReloadSwiss RS 60 | 44.3 gr | 80% | 29,283 psi | 59% | 2218 fps | 96.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,016 psi | 81% | 2454 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,597 psi | 84% | 2339 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,984 psi | 73% | 2247 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 31,299 psi | 63% | 2205 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,840 psi | 75% | 2313 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 33,982 psi | 69% | 2228 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,563 psi | 70% | 2297 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,944 psi | 83% | 2359 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,043 psi | 75% | 2300 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,450 psi | 80% | 2260 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,387 psi | 66% | 2139 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 38,943 psi | 79% | 2267 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,942 psi | 77% | 2310 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 30,501 psi | 62% | 2169 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 28,210 psi | 57% | 2192 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 39,552 psi | 80% | 2260 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,867 psi | 71% | 2244 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,650 psi | 72% | 2244 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 28,747 psi | 58% | 2113 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 92% | 37,492 psi | 76% | 2339 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,219 psi | 82% | 2336 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 34,287 psi | 70% | 2234 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 39,175 psi | 79% | 2392 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,446 psi | 68% | 2228 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 39,363 psi | 80% | 2375 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,129 psi | 73% | 2300 fps | 97.1% |
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 88 powders for 8 x 56 R M 89 Port. Krop. loaded with the .323 | 200gr | Nosler AccuBond. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,539 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,539 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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, Ramshot Big Game rank at the top here: for 8 x 56 R M 89 Port. Krop. with the .323 | 200gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.