Load Specifications
Load data in caliber 7 x 57 R with .284 | 145gr | Hasler Hunting bullet and 62 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 ReloadSwiss RS 62.
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>> | 86% | 43,888 psi | 89% | 2559 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,990 psi | 89% | 2595 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,830 psi | 87% | 2641 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 82% | 42,917 psi | 87% | 2572 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 88% | 44,034 psi | 89% | 2575 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,570 psi | 90% | 2710 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,424 psi | 88% | 2598 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,859 psi | 89% | 2608 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,902 psi | 87% | 2654 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 43,279 psi | 88% | 2690 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,243 psi | 69% | 2490 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,945 psi | 85% | 2572 fps | 97.2% |
| Bofors RP3 | <<locked>> | 88% | 42,975 psi | 87% | 2602 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,453 psi | 88% | 2598 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 88% | 44,121 psi | 89% | 2605 fps | 97% |
| Hodgdon H4895 | <<locked>> | 82% | 43,294 psi | 88% | 2585 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,076 psi | 85% | 2598 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,771 psi | 85% | 2605 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 70% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 44,454 psi | 90% | 2589 fps | 99% |
| IMR 3031 | <<locked>> | 82% | 42,627 psi | 86% | 2582 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,482 psi | 88% | 2559 fps | 98.1% |
| IMR 4831 | <<locked>> | 98% | 44,237 psi | 90% | 2648 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 41,959 psi | 85% | 2585 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 84% | 44,309 psi | 90% | 2598 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 43,294 psi | 88% | 2513 fps | 98.4% |
| Lovex S062 | <<locked>> | 86% | 43,091 psi | 87% | 2559 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 41,742 psi | 85% | 2523 fps | 99.1% |
| Norma 202 | <<locked>> | 82% | 42,322 psi | 86% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 86% | 43,134 psi | 87% | 2598 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 43,062 psi | 87% | 2641 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 86% | 42,772 psi | 87% | 2612 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 44,222 psi | 90% | 2602 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 71% | 1696 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,989 psi | 87% | 2654 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 43,163 psi | 88% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,830 psi | 87% | 2664 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,627 psi | 88% | 2680 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 84% | 42,308 psi | 86% | 2526 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 42,888 psi | 87% | 2592 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 44,309 psi | 90% | 2598 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 43,091 psi | 87% | 2559 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,727 psi | 85% | 2598 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,004 psi | 87% | 2556 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 44,150 psi | 90% | 2592 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,714 psi | 89% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,656 psi | 89% | 2493 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,917 psi | 87% | 2487 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,728 psi | 87% | 2556 fps | 98.2% |
| Somchem S355 | <<locked>> | 90% | 43,990 psi | 89% | 2602 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,903 psi | 89% | 2700 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 43,976 psi | 89% | 2487 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 44,512 psi | 90% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,612 psi | 86% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,974 psi | 85% | 2536 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 94% | 42,583 psi | 86% | 2595 fps | 97% |
| Vihtavuori N540 | <<locked>> | 86% | 43,845 psi | 89% | 2562 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 44,483 psi | 90% | 2644 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,506 psi | 74% | 2562 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 43,192 psi | 88% | 2582 fps | 98.9% |
| Winchester 748 | <<locked>> | 82% | 44,469 psi | 90% | 2621 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,642 psi | 89% | 2598 fps | 99% |
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% | 35,737 psi | 72% | 2415 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,837 psi | 69% | 2402 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 37,115 psi | 75% | 2530 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 40,103 psi | 81% | 2516 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 34,142 psi | 69% | 2369 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,289 psi | 74% | 2526 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,315 psi | 68% | 2388 fps | 96.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,897 psi | 73% | 2448 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,752 psi | 73% | 2493 fps | 95% |
| Alliant Reloder-17 | 41.7 gr | 84% | 32,938 psi | 67% | 2454 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,242 psi | 65% | 2438 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,204 psi | 80% | 2516 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 32,706 psi | 66% | 2388 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,553 psi | 82% | 2546 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 84% | 38,653 psi | 78% | 2497 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 40,408 psi | 82% | 2526 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,489 psi | 66% | 2388 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,361 psi | 74% | 2493 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 53% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,015 psi | 79% | 2484 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 39,871 psi | 81% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,795 psi | 73% | 2405 fps | 96.1% |
| IMR 4831 | <<locked>> | 92% | 35,969 psi | 73% | 2484 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 36,753 psi | 75% | 2477 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 38,725 psi | 79% | 2497 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,727 psi | 83% | 2464 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 35,491 psi | 72% | 2408 fps | 97.9% |
| Norma 201 | <<locked>> | 80% | 39,204 psi | 80% | 2474 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,465 psi | 80% | 2487 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,288 psi | 72% | 2434 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 37,942 psi | 77% | 2536 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,838 psi | 71% | 2448 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,336 psi | 84% | 2549 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 53% | 1516 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,434 psi | 76% | 2543 fps | 96.5% |
| ReloadSwiss RS 60 | 39.7 gr | 80% | 30,690 psi | 62% | 2405 fps | 97.5% |
| ReloadSwiss RS 62 | 45.6 gr | 92% | 37,217 psi | 75% | 2549 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,785 psi | 83% | 2621 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 37,362 psi | 76% | 2428 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,560 psi | 62% | 2329 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,725 psi | 79% | 2497 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,491 psi | 72% | 2408 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,229 psi | 69% | 2438 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,132 psi | 81% | 2500 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,856 psi | 79% | 2490 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,017 psi | 83% | 2444 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,779 psi | 69% | 2310 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,379 psi | 82% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,914 psi | 81% | 2500 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 31,720 psi | 64% | 2343 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 27,731 psi | 56% | 2320 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 41,278 psi | 84% | 2444 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,550 psi | 74% | 2421 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,289 psi | 76% | 2425 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 30,037 psi | 61% | 2283 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 37,289 psi | 76% | 2487 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 35,998 psi | 73% | 2415 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 92% | 39,044 psi | 79% | 2543 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 98% | 34,272 psi | 70% | 2510 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,893 psi | 63% | 2310 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 41,466 psi | 84% | 2569 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,985 psi | 77% | 2490 fps | 97.8% |
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 62 powders for 7 x 57 R loaded with the .284 | 145gr | Hasler Hunting. Alliant Power Pro 2000-MR 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. Alliant Reloder-23 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 145gr | Hasler Hunting 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.