Load Specifications
Load data in caliber 7 x 57 R with .284 | 145gr | SUS-TAC HPT bullet and 66 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 Alliant Reloder-16.
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% | 43,337 psi | 88% | 2530 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,555 psi | 88% | 2566 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,843 psi | 85% | 2602 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 42,061 psi | 85% | 2530 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 88% | 43,221 psi | 88% | 2536 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 44,193 psi | 90% | 2543 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 82% | 43,627 psi | 88% | 2539 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,685 psi | 89% | 2664 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,366 psi | 86% | 2556 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,830 psi | 87% | 2566 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 44,614 psi | 90% | 2657 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,090 psi | 85% | 2641 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,918 psi | 89% | 2585 fps | 97.3% |
| Bofors RP3 | <<locked>> | 88% | 42,105 psi | 85% | 2562 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,728 psi | 87% | 2566 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 88% | 43,294 psi | 88% | 2566 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 42,395 psi | 86% | 2543 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,584 psi | 88% | 2598 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,685 psi | 89% | 2618 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 71% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,511 psi | 88% | 2549 fps | 98.6% |
| IMR 3031 | <<locked>> | 84% | 44,585 psi | 90% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,612 psi | 86% | 2520 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 42,902 psi | 87% | 2602 fps | 97.1% |
| IMR 4895 | <<locked>> | 86% | 43,816 psi | 89% | 2595 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 82% | 44,193 psi | 90% | 2543 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 84% | 43,613 psi | 88% | 2566 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 42,598 psi | 86% | 2477 fps | 98% |
| Lovex S062 | <<locked>> | 86% | 42,308 psi | 86% | 2523 fps | 99% |
| Lovex S065 | <<locked>> | 94% | 44,121 psi | 89% | 2552 fps | 95.7% |
| Norma 201 | <<locked>> | 84% | 43,947 psi | 89% | 2539 fps | 99.2% |
| Norma 202 | <<locked>> | 84% | 44,092 psi | 89% | 2549 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,076 psi | 85% | 2556 fps | 98% |
| Norma URP | <<locked>> | 96% | 42,032 psi | 85% | 2598 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 86% | 41,945 psi | 85% | 2572 fps | 97.8% |
| Ramshot TAC | <<locked>> | 82% | 44,164 psi | 90% | 2543 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,526 psi | 88% | 2566 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 71% | 1673 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,047 psi | 85% | 2615 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,916 psi | 85% | 2648 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 44,527 psi | 90% | 2671 fps | 97% |
| Rottweil R 902 | <<locked>> | 86% | 44,556 psi | 90% | 2543 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 41,989 psi | 85% | 2552 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 44,121 psi | 89% | 2552 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,613 psi | 88% | 2566 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 42,308 psi | 86% | 2523 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,569 psi | 88% | 2608 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,177 psi | 86% | 2513 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,410 psi | 88% | 2556 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,946 psi | 87% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,743 psi | 87% | 2457 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,380 psi | 86% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,047 psi | 85% | 2520 fps | 97.8% |
| Somchem S355 | <<locked>> | 90% | 43,091 psi | 87% | 2559 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,496 psi | 86% | 2651 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 43,062 psi | 87% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,439 psi | 88% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 44,440 psi | 90% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 43,874 psi | 89% | 2546 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 96% | 44,309 psi | 90% | 2602 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 44,208 psi | 90% | 2539 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 86% | 42,917 psi | 87% | 2526 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 43,323 psi | 88% | 2602 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,134 psi | 85% | 2533 fps | 98.4% |
| Winchester 748 | <<locked>> | 82% | 43,540 psi | 88% | 2585 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,612 psi | 86% | 2556 fps | 98.5% |
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% | 35,520 psi | 72% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,576 psi | 68% | 2372 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 36,463 psi | 74% | 2493 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 39,508 psi | 80% | 2480 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 36,027 psi | 73% | 2388 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,495 psi | 84% | 2493 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 41,060 psi | 83% | 2500 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 38,247 psi | 78% | 2546 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,764 psi | 66% | 2352 fps | 96.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,360 psi | 72% | 2411 fps | 95.5% |
| Alliant Reloder-16 | 40.5 gr | 92% | 37,304 psi | 76% | 2503 fps | 95.1% |
| Alliant Reloder-17 | 39.8 gr | 84% | 32,387 psi | 66% | 2415 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,508 psi | 78% | 2477 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 32,111 psi | 65% | 2352 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,842 psi | 81% | 2510 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 40,596 psi | 82% | 2513 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,769 psi | 81% | 2490 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,865 psi | 65% | 2349 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,636 psi | 72% | 2454 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 53% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,334 psi | 78% | 2448 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 38,885 psi | 79% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,433 psi | 72% | 2372 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 37,681 psi | 76% | 2500 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,172 psi | 73% | 2441 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 41,495 psi | 84% | 2493 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,956 psi | 77% | 2461 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 40,321 psi | 82% | 2431 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 35,244 psi | 71% | 2379 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 41,713 psi | 85% | 2507 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,667 psi | 78% | 2438 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 38,798 psi | 79% | 2454 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 34,780 psi | 71% | 2402 fps | 96% |
| Norma URP | <<locked>> | 92% | 36,999 psi | 75% | 2493 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,272 psi | 70% | 2408 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 41,582 psi | 84% | 2493 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,625 psi | 82% | 2513 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,121 psi | 53% | 1496 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,550 psi | 74% | 2500 fps | 95.9% |
| ReloadSwiss RS 60 | 37.9 gr | 80% | 30,269 psi | 61% | 2369 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,899 psi | 79% | 2559 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 36,854 psi | 75% | 2392 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 30,211 psi | 61% | 2297 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,713 psi | 85% | 2507 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,956 psi | 77% | 2461 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 35,244 psi | 71% | 2379 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,460 psi | 68% | 2395 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,552 psi | 80% | 2464 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,072 psi | 77% | 2451 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,509 psi | 82% | 2411 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,359 psi | 68% | 2280 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,813 psi | 81% | 2411 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,233 psi | 80% | 2464 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 31,270 psi | 63% | 2306 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 29,066 psi | 59% | 2333 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 40,669 psi | 82% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,013 psi | 73% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,680 psi | 74% | 2392 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,646 psi | 60% | 2251 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 39,015 psi | 79% | 2500 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,437 psi | 84% | 2487 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 35,317 psi | 72% | 2379 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 38,159 psi | 77% | 2500 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,460 psi | 66% | 2326 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 40,509 psi | 82% | 2530 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,275 psi | 76% | 2451 fps | 97.3% |
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 66 powders for 7 x 57 R loaded with the .284 | 145gr | SUS-TAC HPT. ReloadSwiss RS 62 delivers the highest muzzle velocity at 2,671 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,671 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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, Alliant Reloder-16 rank at the top here: for 7 x 57 R with the .284 | 145gr | SUS-TAC HPT 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.