Load Specifications
Load data in caliber 7 x 57 R with .283 | 160gr | Rhino Penetrator bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, Somchem S365 and ReloadSwiss RS 70.
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 2495 | <<locked>> | 82% | 42,496 psi | 86% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,757 psi | 87% | 2431 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 44,106 psi | 89% | 2526 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 86% | 44,469 psi | 90% | 2448 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,858 psi | 85% | 2523 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 44,034 psi | 89% | 2470 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 84% | 44,396 psi | 90% | 2480 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,627 psi | 88% | 2536 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,743 psi | 89% | 2562 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,144 psi | 75% | 2438 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,350 psi | 84% | 2579 fps | 97.4% |
| Bofors RP3 | <<locked>> | 86% | 44,005 psi | 89% | 2480 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 41,858 psi | 85% | 2428 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,830 psi | 87% | 2477 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,453 psi | 86% | 2477 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,230 psi | 71% | 1568 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 43,932 psi | 89% | 2431 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 42,235 psi | 86% | 2477 fps | 98.1% |
| IMR 4895 | <<locked>> | 82% | 42,743 psi | 87% | 2461 fps | 99.1% |
| Lovex S062 | <<locked>> | 84% | 43,816 psi | 89% | 2434 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 43,163 psi | 88% | 2431 fps | 96.8% |
| Norma 203B | <<locked>> | 84% | 43,671 psi | 89% | 2470 fps | 99.2% |
| Norma URP | <<locked>> | 94% | 43,903 psi | 89% | 2520 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 84% | 43,294 psi | 88% | 2487 fps | 99% |
| Ramshot Hunter | <<locked>> | 94% | 43,018 psi | 87% | 2510 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 72% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,569 psi | 86% | 2418 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,801 psi | 89% | 2530 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,453 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,845 psi | 89% | 2549 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,918 psi | 89% | 2559 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 42,902 psi | 87% | 2398 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 43,859 psi | 89% | 2470 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,163 psi | 88% | 2431 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 43,816 psi | 89% | 2434 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,250 psi | 86% | 2474 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,541 psi | 90% | 2464 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 43,976 psi | 89% | 2362 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 42,018 psi | 85% | 2428 fps | 99.2% |
| Somchem S365 | <<locked>> | 96% | 42,032 psi | 85% | 2526 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 82% | 42,264 psi | 86% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 43,163 psi | 88% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,699 psi | 87% | 2411 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 92% | 43,308 psi | 88% | 2474 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 44,092 psi | 89% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,482 psi | 86% | 2477 fps | 97.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,248 psi | 82% | 2507 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,366 psi | 88% | 2454 fps | 99.5% |
| Winchester 760 | <<locked>> | 92% | 44,150 psi | 90% | 2523 fps | 95.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,199 psi | 67% | 2428 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,976 psi | 89% | 2467 fps | 99.5% |
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% | 39,856 psi | 81% | 2346 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,681 psi | 76% | 2343 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,446 psi | 68% | 2320 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 36,927 psi | 75% | 2306 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,349 psi | 80% | 2470 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,463 psi | 74% | 2329 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,175 psi | 79% | 2385 fps | 97.9% |
| Alliant Reloder-16 | 38.4 gr | 86% | 34,127 psi | 69% | 2333 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,430 psi | 64% | 2293 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,370 psi | 60% | 2244 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,940 psi | 73% | 2461 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 36,013 psi | 73% | 2329 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 80% | 36,898 psi | 75% | 2333 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,457 psi | 60% | 2195 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,552 psi | 80% | 2425 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,455 psi | 54% | 1404 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,711 psi | 79% | 2336 fps | 97.9% |
| IMR 4831 | <<locked>> | 86% | 32,663 psi | 66% | 2283 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,132 psi | 81% | 2411 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 38,682 psi | 78% | 2343 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,218 psi | 78% | 2336 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 38,566 psi | 78% | 2375 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 34,040 psi | 69% | 2323 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,971 psi | 77% | 2385 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 40,466 psi | 82% | 2461 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 54% | 1434 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,769 psi | 81% | 2365 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,944 psi | 83% | 2477 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,460 psi | 68% | 2356 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,737 psi | 72% | 2388 fps | 95.9% |
| ReloadSwiss RS 70 | 43.9 gr | 90% | 38,334 psi | 78% | 2444 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 40,582 psi | 82% | 2359 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 33,910 psi | 69% | 2280 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,218 psi | 78% | 2336 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 38,682 psi | 78% | 2343 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,838 psi | 71% | 2323 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,916 psi | 85% | 2418 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,521 psi | 74% | 2238 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 34,809 psi | 71% | 2287 fps | 97.7% |
| Somchem S365 | 36.5 gr | 80% | 25,208 psi | 51% | 2126 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 39,914 psi | 81% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,524 psi | 82% | 2349 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,054 psi | 67% | 2228 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 33,330 psi | 68% | 2274 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 38,986 psi | 79% | 2343 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 34,969 psi | 71% | 2326 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 92% | 31,111 psi | 63% | 2306 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,370 psi | 60% | 2159 fps | 95.6% |
| Winchester 760 | <<locked>> | 90% | 41,495 psi | 84% | 2474 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,254 psi | 59% | 2306 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,307 psi | 84% | 2421 fps | 99.2% |
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 51 powders for 7 x 57 R loaded with the .283 | 160gr | Rhino Penetrator. Alliant Reloder-26 delivers the highest muzzle velocity at 2,579 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,579 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.283" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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. Alliant Reloder-16, Somchem S365, ReloadSwiss RS 70 rank at the top here: for 7 x 57 R with the .283 | 160gr | Rhino Penetrator 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.