Load Specifications
Load data in caliber 7 x 57 R with .284 | 150gr | Rhino Solid Shank bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, ReloadSwiss RS 70 and Alliant Reloder-17.
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>> | 82% | 43,526 psi | 88% | 2510 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 43,888 psi | 89% | 2552 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,351 psi | 86% | 2598 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 84% | 42,743 psi | 87% | 2523 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,931 psi | 87% | 2648 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,308 psi | 86% | 2543 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,728 psi | 87% | 2556 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 44,599 psi | 90% | 2661 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,959 psi | 85% | 2635 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,334 psi | 78% | 2562 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,670 psi | 87% | 2710 fps | 97.6% |
| Bofors RP3 | <<locked>> | 84% | 42,032 psi | 85% | 2549 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 43,091 psi | 87% | 2556 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 44,048 psi | 89% | 2602 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,497 psi | 88% | 2602 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 72% | 1657 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,148 psi | 85% | 2503 fps | 98.4% |
| IMR 4831 | <<locked>> | 94% | 43,439 psi | 88% | 2602 fps | 98.1% |
| IMR 4895 | <<locked>> | 82% | 43,743 psi | 89% | 2585 fps | 99.1% |
| Lovex S062 | <<locked>> | 82% | 42,047 psi | 85% | 2507 fps | 99.5% |
| Lovex S065 | <<locked>> | 90% | 44,121 psi | 89% | 2549 fps | 96.8% |
| Lovex S070 | <<locked>> | 92% | 44,440 psi | 90% | 2572 fps | 95.7% |
| Norma 203B | <<locked>> | 82% | 42,047 psi | 85% | 2546 fps | 98.8% |
| Norma URP | <<locked>> | 92% | 42,308 psi | 86% | 2595 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 84% | 44,585 psi | 90% | 2612 fps | 99% |
| Ramshot Hunter | <<locked>> | 94% | 44,411 psi | 90% | 2641 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,911 psi | 73% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,598 psi | 88% | 2539 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,945 psi | 85% | 2644 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,076 psi | 85% | 2618 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,221 psi | 86% | 2631 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 82% | 43,874 psi | 89% | 2520 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 86% | 42,221 psi | 86% | 2546 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,121 psi | 89% | 2549 fps | 96.8% |
| Shooters World Precision | <<locked>> | 82% | 42,047 psi | 85% | 2507 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 92% | 44,440 psi | 90% | 2572 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,569 psi | 88% | 2602 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,134 psi | 85% | 2438 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 42,844 psi | 87% | 2546 fps | 99.2% |
| Somchem S365 | <<locked>> | 96% | 43,352 psi | 88% | 2657 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 82% | 43,497 psi | 88% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 44,222 psi | 90% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 43,830 psi | 89% | 2536 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 92% | 44,324 psi | 90% | 2595 fps | 98% |
| Vihtavuori N540 | <<locked>> | 82% | 42,554 psi | 86% | 2507 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 43,569 psi | 88% | 2598 fps | 97.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,727 psi | 85% | 2635 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 44,483 psi | 90% | 2579 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,287 psi | 70% | 2552 fps | 98.1% |
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% | 40,669 psi | 82% | 2461 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,479 psi | 78% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,650 psi | 70% | 2438 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 37,579 psi | 76% | 2418 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,219 psi | 82% | 2592 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,405 psi | 76% | 2444 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,030 psi | 81% | 2503 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,998 psi | 71% | 2451 fps | 95.7% |
| Alliant Reloder-17 | 41.5 gr | 80% | 32,082 psi | 65% | 2405 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,168 psi | 61% | 2356 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,144 psi | 75% | 2585 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 36,811 psi | 75% | 2444 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 80% | 37,826 psi | 77% | 2451 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,023 psi | 61% | 2297 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,727 psi | 83% | 2549 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 53% | 1476 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,450 psi | 80% | 2451 fps | 97.8% |
| IMR 4831 | <<locked>> | 86% | 33,547 psi | 68% | 2398 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,988 psi | 83% | 2533 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 39,421 psi | 80% | 2457 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,899 psi | 79% | 2448 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 41,974 psi | 85% | 2526 fps | 95% |
| Norma 203B | <<locked>> | 80% | 39,392 psi | 80% | 2490 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 34,940 psi | 71% | 2438 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,928 psi | 79% | 2503 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 41,408 psi | 84% | 2582 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 54% | 1512 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,683 psi | 83% | 2484 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,127 psi | 69% | 2470 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,666 psi | 74% | 2507 fps | 95.9% |
| ReloadSwiss RS 70 | 47.5 gr | 90% | 39,624 psi | 80% | 2572 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 41,423 psi | 84% | 2474 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,809 psi | 71% | 2395 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,899 psi | 79% | 2448 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 39,421 psi | 80% | 2457 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 41,974 psi | 85% | 2526 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,650 psi | 72% | 2438 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,347 psi | 76% | 2352 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 35,491 psi | 72% | 2395 fps | 97.7% |
| Somchem S365 | 40.4 gr | 82% | 27,572 psi | 56% | 2287 fps | 96% |
| Vihtavuori N135 | <<locked>> | 80% | 40,930 psi | 83% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,452 psi | 84% | 2467 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,866 psi | 69% | 2339 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 34,272 psi | 70% | 2388 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,929 psi | 81% | 2457 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,940 psi | 73% | 2444 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 32,343 psi | 66% | 2431 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,950 psi | 61% | 2264 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,240 psi | 61% | 2428 fps | 95.8% |
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 74 powders for 7 x 57 R loaded with the .284 | 150gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,710 fps. Accurate 3100 gives the best case fill at 100 %, and 74 of the 74 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 150.0 gr projectile in 0.284" calls for a 1:12.5 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. Somchem S365, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 x 57 R with the .284 | 150gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, ADI AR 2209, Alliant Reloder-19 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.