Load Specifications
Load data in caliber 8 x 75 RS with .323 | 220gr | Peregrine VRG-2 Discontinued%29 bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 46,862 psi | 85% | 2425 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,211 psi | 89% | 2480 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,309 psi | 80% | 2503 fps | 98.5% |
| Accurate 4064 | <<locked>> | 84% | 47,456 psi | 86% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 46,920 psi | 85% | 2556 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 86% | 48,892 psi | 89% | 2507 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 49,023 psi | 89% | 2592 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 46,789 psi | 85% | 2605 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 48,878 psi | 89% | 2526 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,182 psi | 89% | 2543 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,646 psi | 88% | 2615 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,211 psi | 89% | 2638 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,993 psi | 87% | 2582 fps | 96.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 44,802 psi | 81% | 2575 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,090 psi | 76% | 2526 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,898 psi | 67% | 2441 fps | 97.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,340 psi | 86% | 2690 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 49,037 psi | 89% | 2539 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 44,802 psi | 81% | 2575 fps | 96.3% |
| Bofors RP7 | <<locked>> | 90% | 49,356 psi | 90% | 2520 fps | 98% |
| Hodgdon H380 | <<locked>> | 84% | 46,644 psi | 85% | 2503 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 92% | 49,719 psi | 90% | 2608 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 88% | 47,355 psi | 86% | 2523 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,254 psi | 88% | 2546 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 47,601 psi | 86% | 2543 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,545 psi | 90% | 2635 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 65% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,313 psi | 89% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,182 psi | 87% | 2487 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,805 psi | 87% | 2467 fps | 98.1% |
| IMR 4350 | <<locked>> | 94% | 49,676 psi | 90% | 2546 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,153 psi | 87% | 2500 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 47,906 psi | 87% | 2556 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 47,195 psi | 86% | 2520 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 48,254 psi | 88% | 2487 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 47,616 psi | 86% | 2497 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 48,385 psi | 88% | 2530 fps | 98.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,535 psi | 66% | 2362 fps | 96.6% |
| Norma 201 | <<locked>> | 82% | 49,501 psi | 90% | 2493 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,428 psi | 88% | 2530 fps | 100% |
| Norma 204 | <<locked>> | 92% | 46,630 psi | 85% | 2536 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 47,079 psi | 85% | 2648 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 49,705 psi | 90% | 2598 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 48,733 psi | 88% | 2556 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 48,472 psi | 88% | 2595 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 66% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 47,021 psi | 85% | 2487 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,327 psi | 90% | 2598 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,994 psi | 89% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 46,746 psi | 85% | 2579 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,284 psi | 89% | 2651 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 47,152 psi | 86% | 2451 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 48,921 psi | 89% | 2530 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 46,615 psi | 85% | 2562 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 90% | 49,356 psi | 90% | 2520 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 90% | 47,616 psi | 86% | 2497 fps | 99.1% |
| Shooters World Precision | <<locked>> | 84% | 48,254 psi | 88% | 2487 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,385 psi | 88% | 2530 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 47,572 psi | 86% | 2543 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,124 psi | 89% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,225 psi | 88% | 2398 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 47,137 psi | 86% | 2448 fps | 98% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,530 psi | 90% | 2612 fps | 97.3% |
| Somchem S355 | <<locked>> | 88% | 49,385 psi | 90% | 2530 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 47,950 psi | 87% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 47,398 psi | 86% | 2546 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 82% | 46,978 psi | 85% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 47,601 psi | 86% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 47,369 psi | 86% | 2467 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,689 psi | 88% | 2546 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,627 psi | 79% | 2470 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 84% | 48,907 psi | 89% | 2477 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 47,863 psi | 87% | 2552 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,601 psi | 85% | 2595 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,312 psi | 88% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 46,731 psi | 85% | 2559 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,492 psi | 68% | 2556 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,037 psi | 89% | 2530 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,442 psi | 86% | 2536 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 43,947 psi | 80% | 2382 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,207 psi | 78% | 2379 fps | 96.4% |
| Accurate 3100 | <<locked>> | 92% | 33,460 psi | 61% | 2297 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,655 psi | 76% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,777 psi | 56% | 2244 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,538 psi | 74% | 2365 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 42,873 psi | 78% | 2487 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,758 psi | 79% | 2549 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,219 psi | 73% | 2385 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,294 psi | 79% | 2448 fps | 99.7% |
| Alliant Reloder-16 | 49.4 gr | 80% | 31,140 psi | 56% | 2260 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,911 psi | 63% | 2379 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,308 psi | 77% | 2484 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 41,887 psi | 76% | 2523 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,425 psi | 46% | 2133 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,590 psi | 59% | 2336 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,748 psi | 56% | 2339 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 39,943 psi | 72% | 2392 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 41,887 psi | 76% | 2523 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 38,319 psi | 70% | 2323 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 40,814 psi | 74% | 2402 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 35,505 psi | 64% | 2346 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 84% | 41,553 psi | 75% | 2418 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,572 psi | 52% | 2169 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,295 psi | 80% | 2490 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 37,231 psi | 68% | 2408 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 48% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,137 psi | 84% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,583 psi | 77% | 2395 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,020 psi | 82% | 2421 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 38,667 psi | 70% | 2352 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,507 psi | 68% | 2306 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 29,921 psi | 54% | 2208 fps | 96.1% |
| IMR 4895 | <<locked>> | 80% | 44,396 psi | 81% | 2474 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,467 psi | 77% | 2395 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,838 psi | 63% | 2260 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 35,201 psi | 64% | 2283 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 32,039 psi | 58% | 2267 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,557 psi | 84% | 2451 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,627 psi | 77% | 2438 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 43,598 psi | 79% | 2484 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 38,305 psi | 70% | 2480 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 31,198 psi | 57% | 2247 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,424 psi | 77% | 2454 fps | 99.7% |
| Ramshot Hunter | 55 gr | 84% | 34,693 psi | 63% | 2336 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 49% | 1434 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,089 psi | 75% | 2385 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,021 psi | 84% | 2546 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,202 psi | 68% | 2431 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,545 psi | 55% | 2260 fps | 95.9% |
| ReloadSwiss RS 70 | 55.4 gr | 82% | 32,663 psi | 59% | 2320 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 44,121 psi | 80% | 2405 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,565 psi | 68% | 2339 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 94% | 40,843 psi | 74% | 2461 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 38,319 psi | 70% | 2323 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,838 psi | 63% | 2260 fps | 96.3% |
| Shooters World Precision | <<locked>> | 80% | 42,467 psi | 77% | 2395 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,201 psi | 64% | 2283 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,711 psi | 70% | 2392 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,064 psi | 84% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,958 psi | 73% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,376 psi | 66% | 2254 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 40,466 psi | 73% | 2457 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 38,406 psi | 70% | 2346 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 27,905 psi | 51% | 2208 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 38,725 psi | 70% | 2395 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 44,077 psi | 80% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,556 psi | 81% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,492 psi | 66% | 2283 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 32,648 psi | 59% | 2251 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 40,785 psi | 74% | 2421 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 42,946 psi | 78% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,082 psi | 58% | 2254 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 27,282 psi | 50% | 2198 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,169 psi | 58% | 2228 fps | 98.7% |
| Winchester 760 | <<locked>> | 82% | 35,679 psi | 65% | 2349 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,309 psi | 46% | 2205 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,701 psi | 83% | 2477 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,237 psi | 80% | 2484 fps | 95.7% |
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 79 powders for 8 x 75 RS loaded with the .323 | 220gr | Peregrine VRG-2 Discontinued%29. Alliant Reloder-26 delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,690 fps. Accurate 3100 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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 Reloder-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for 8 x 75 RS with the .323 | 220gr | Peregrine VRG-2 Discontinued%29 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.