Load Specifications
Load data in caliber 7 x 57 R with .284 | 154gr | Reichenberg HDB Universal bullet and 48 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 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% | 42,844 psi | 87% | 2454 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,975 psi | 87% | 2493 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 44,382 psi | 90% | 2592 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 86% | 44,570 psi | 90% | 2510 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,090 psi | 85% | 2585 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 44,092 psi | 89% | 2530 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 82% | 41,901 psi | 85% | 2497 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,671 psi | 89% | 2595 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,903 psi | 89% | 2628 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,478 psi | 76% | 2500 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,539 psi | 84% | 2644 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 44,280 psi | 90% | 2546 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 84% | 42,163 psi | 86% | 2493 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 43,105 psi | 87% | 2543 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,511 psi | 86% | 2539 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 72% | 1614 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 44,121 psi | 89% | 2497 fps | 98.8% |
| IMR 4831 | <<locked>> | 94% | 42,496 psi | 86% | 2539 fps | 98% |
| IMR 4895 | <<locked>> | 82% | 42,902 psi | 87% | 2523 fps | 99% |
| Lovex S062 | <<locked>> | 84% | 44,019 psi | 89% | 2500 fps | 99.7% |
| Lovex S065 | <<locked>> | 90% | 43,352 psi | 88% | 2490 fps | 96.7% |
| Norma 203B | <<locked>> | 84% | 44,121 psi | 89% | 2539 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 44,208 psi | 90% | 2585 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 84% | 43,801 psi | 89% | 2556 fps | 99% |
| Ramshot Hunter | <<locked>> | 94% | 43,410 psi | 88% | 2575 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 72% | 1654 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 44,179 psi | 90% | 2595 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,772 psi | 89% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,888 psi | 89% | 2608 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,179 psi | 90% | 2625 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 82% | 43,236 psi | 88% | 2464 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 88% | 44,135 psi | 90% | 2536 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,352 psi | 88% | 2490 fps | 96.7% |
| Shooters World Precision | <<locked>> | 84% | 44,019 psi | 89% | 2500 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,438 psi | 86% | 2536 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 44,179 psi | 90% | 2425 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 42,105 psi | 85% | 2490 fps | 99.1% |
| Somchem S365 | <<locked>> | 96% | 42,163 psi | 86% | 2592 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 82% | 42,714 psi | 87% | 2448 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 43,395 psi | 88% | 2457 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,946 psi | 87% | 2474 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 92% | 43,627 psi | 88% | 2536 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 44,382 psi | 90% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,728 psi | 87% | 2539 fps | 97.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,625 psi | 82% | 2572 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,685 psi | 89% | 2520 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,504 psi | 68% | 2490 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 44,222 psi | 90% | 2533 fps | 99.4% |
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% | 39,914 psi | 81% | 2405 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,739 psi | 77% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,707 psi | 68% | 2379 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,970 psi | 75% | 2362 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,363 psi | 80% | 2530 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,521 psi | 74% | 2385 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,436 psi | 80% | 2448 fps | 97.8% |
| Alliant Reloder-16 | 39.8 gr | 86% | 34,229 psi | 69% | 2388 fps | 95.4% |
| Alliant Reloder-17 | 39.9 gr | 80% | 31,488 psi | 64% | 2349 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,212 psi | 63% | 2346 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,260 psi | 74% | 2523 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 36,245 psi | 74% | 2392 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 80% | 37,086 psi | 75% | 2392 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,617 psi | 60% | 2247 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,697 psi | 81% | 2487 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 53% | 1440 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,812 psi | 79% | 2395 fps | 97.7% |
| IMR 4831 | <<locked>> | 86% | 32,706 psi | 66% | 2336 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 40,379 psi | 82% | 2477 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 38,740 psi | 79% | 2402 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 38,290 psi | 78% | 2392 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 38,798 psi | 79% | 2438 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 34,330 psi | 70% | 2382 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 38,043 psi | 77% | 2444 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 40,669 psi | 82% | 2523 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 54% | 1480 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,147 psi | 83% | 2543 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,547 psi | 68% | 2415 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,013 psi | 73% | 2451 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,696 psi | 78% | 2510 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 40,712 psi | 83% | 2418 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 33,939 psi | 69% | 2333 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,290 psi | 78% | 2392 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 38,740 psi | 79% | 2402 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,969 psi | 71% | 2382 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,666 psi | 74% | 2297 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 34,867 psi | 71% | 2343 fps | 97.6% |
| Somchem S365 | 38.8 gr | 82% | 26,948 psi | 55% | 2231 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 40,089 psi | 81% | 2405 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,524 psi | 82% | 2408 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,069 psi | 67% | 2283 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 86% | 35,795 psi | 73% | 2385 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,160 psi | 79% | 2402 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,201 psi | 71% | 2385 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 31,444 psi | 64% | 2369 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,385 psi | 60% | 2208 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,631 psi | 60% | 2369 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,379 psi | 84% | 2480 fps | 99.1% |
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 77 powders for 7 x 57 R loaded with the .284 | 154gr | Reichenberg HDB Universal. Alliant Reloder-26 delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,644 fps. Accurate 3100 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:10.0 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, Somchem S365, Alliant Reloder-17 rank at the top here: for 7 x 57 R with the .284 | 154gr | Reichenberg HDB Universal 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.