Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Prvi Partizan HP BT bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 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.
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 2015 | <<locked>> | 82% | 50,937 psi | 90% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 49,197 psi | 87% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 50,879 psi | 90% | 2657 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 49,429 psi | 87% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 48,428 psi | 86% | 2707 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 84% | 50,096 psi | 89% | 2667 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 90% | 50,923 psi | 90% | 2667 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 49,240 psi | 87% | 2625 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 49,342 psi | 87% | 2602 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,979 psi | 87% | 2766 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,763 psi | 90% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 48,051 psi | 85% | 2654 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,154 psi | 89% | 2766 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 51,097 psi | 90% | 2802 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,116 psi | 67% | 2559 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,453 psi | 75% | 2710 fps | 97.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,356 psi | 87% | 2674 fps | 99.1% |
| Bofors RP3 | <<locked>> | 90% | 51,068 psi | 90% | 2703 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 48,486 psi | 86% | 2621 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,720 psi | 90% | 2605 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,935 psi | 85% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 48,820 psi | 86% | 2661 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 94% | 48,037 psi | 85% | 2700 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 84% | 50,546 psi | 89% | 2677 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,748 psi | 88% | 2700 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 49,284 psi | 87% | 2703 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,505 psi | 63% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,356 psi | 85% | 2628 fps | 99.7% |
| IMR 3031 | <<locked>> | 84% | 50,357 psi | 89% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,575 psi | 89% | 2654 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,604 psi | 89% | 2631 fps | 96.8% |
| IMR 4350 | <<locked>> | 96% | 48,356 psi | 85% | 2641 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,299 psi | 89% | 2654 fps | 96.7% |
| IMR 4831 | <<locked>> | 98% | 49,327 psi | 87% | 2703 fps | 99% |
| IMR 4895 | <<locked>> | 86% | 49,211 psi | 87% | 2684 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 82% | 49,240 psi | 87% | 2625 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 49,226 psi | 87% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,763 psi | 88% | 2598 fps | 99.7% |
| Lovex S062 | <<locked>> | 88% | 50,111 psi | 89% | 2648 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 49,545 psi | 88% | 2648 fps | 97.9% |
| Lovex S070 | <<locked>> | 96% | 50,241 psi | 89% | 2680 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 48,733 psi | 86% | 2615 fps | 99.9% |
| Norma 202 | <<locked>> | 84% | 49,342 psi | 87% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,430 psi | 89% | 2694 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 48,051 psi | 85% | 2700 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 88% | 50,807 psi | 90% | 2720 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 50,169 psi | 89% | 2746 fps | 97.7% |
| Ramshot TAC | <<locked>> | 82% | 48,979 psi | 87% | 2628 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,472 psi | 86% | 2648 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,911 psi | 63% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,240 psi | 87% | 2641 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 47,964 psi | 85% | 2710 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,691 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 48,153 psi | 85% | 2726 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 48,095 psi | 85% | 2746 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 82% | 49,966 psi | 88% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 49,342 psi | 87% | 2618 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 50,879 psi | 90% | 2694 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 48,486 psi | 86% | 2621 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 49,545 psi | 88% | 2648 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,226 psi | 87% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,111 psi | 89% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 50,241 psi | 89% | 2680 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 49,342 psi | 87% | 2700 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,792 psi | 90% | 2664 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 48,341 psi | 85% | 2638 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,401 psi | 89% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,444 psi | 89% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 49,530 psi | 88% | 2598 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 49,690 psi | 88% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,270 psi | 89% | 2654 fps | 99.6% |
| Somchem S355 | <<locked>> | 90% | 48,530 psi | 86% | 2648 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,921 psi | 86% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 50,676 psi | 90% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,834 psi | 86% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 49,806 psi | 88% | 2605 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,400 psi | 87% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,343 psi | 89% | 2697 fps | 99% |
| Vihtavuori N530 | <<locked>> | 82% | 49,284 psi | 87% | 2618 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 51,184 psi | 90% | 2644 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 49,313 psi | 87% | 2700 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,466 psi | 73% | 2635 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,560 psi | 89% | 2680 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 49,095 psi | 87% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 48,370 psi | 86% | 2707 fps | 96.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,084 psi | 60% | 2552 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,964 psi | 85% | 2644 fps | 99.7% |
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 2015 | <<locked>> | 80% | 48,022 psi | 85% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,509 psi | 72% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,355 psi | 84% | 2605 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,305 psi | 68% | 2457 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,185 psi | 60% | 2431 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 44,150 psi | 78% | 2566 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 37,449 psi | 66% | 2418 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,180 psi | 82% | 2572 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,383 psi | 82% | 2562 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,045 psi | 71% | 2592 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,970 psi | 65% | 2441 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,842 psi | 70% | 2503 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,664 psi | 61% | 2444 fps | 95.5% |
| Alliant Reloder-17 | 41.5 gr | 80% | 31,908 psi | 56% | 2405 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,849 psi | 53% | 2349 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,985 psi | 65% | 2585 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,207 psi | 76% | 2569 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 36,593 psi | 65% | 2444 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 45,498 psi | 80% | 2566 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,979 psi | 85% | 2562 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,020 psi | 80% | 2595 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 37,405 psi | 66% | 2444 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 92% | 45,063 psi | 80% | 2648 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 44,527 psi | 79% | 2575 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,907 psi | 53% | 2300 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,263 psi | 71% | 2546 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 46% | 1476 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,525 psi | 75% | 2526 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 43,947 psi | 78% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,305 psi | 69% | 2451 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,672 psi | 79% | 2526 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 45,353 psi | 80% | 2589 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,411 psi | 79% | 2549 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 33,373 psi | 59% | 2395 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 40,828 psi | 72% | 2533 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 46,180 psi | 82% | 2572 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 43,178 psi | 76% | 2546 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,135 psi | 78% | 2503 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,276 psi | 69% | 2457 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 38,769 psi | 69% | 2448 fps | 95.2% |
| Lovex S070 | <<locked>> | 92% | 44,237 psi | 78% | 2575 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,163 psi | 76% | 2520 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 43,352 psi | 77% | 2526 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,233 psi | 69% | 2490 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 34,737 psi | 61% | 2438 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 38,725 psi | 68% | 2503 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 41,220 psi | 73% | 2582 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 46,050 psi | 81% | 2579 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,498 psi | 80% | 2598 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 47% | 1516 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,149 psi | 76% | 2533 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,800 psi | 74% | 2602 fps | 98.2% |
| ReloadSwiss RS 60 | 41.5 gr | 80% | 33,953 psi | 60% | 2470 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,448 psi | 64% | 2503 fps | 95.7% |
| ReloadSwiss RS 70 | 47.4 gr | 90% | 39,204 psi | 69% | 2566 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 47,181 psi | 83% | 2559 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,220 psi | 73% | 2477 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,374 psi | 61% | 2388 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 45,498 psi | 80% | 2566 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,769 psi | 69% | 2448 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,178 psi | 76% | 2546 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,276 psi | 69% | 2457 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 44,237 psi | 78% | 2575 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,505 psi | 63% | 2438 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,367 psi | 78% | 2556 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,612 psi | 75% | 2536 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,483 psi | 79% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,970 psi | 65% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,410 psi | 77% | 2497 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 44,106 psi | 78% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,019 psi | 78% | 2549 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 35,346 psi | 62% | 2398 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 27,253 psi | 48% | 2280 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 44,802 psi | 79% | 2467 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,495 psi | 72% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,017 psi | 73% | 2464 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,475 psi | 59% | 2333 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 84% | 34,098 psi | 60% | 2392 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 46,180 psi | 82% | 2569 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,494 psi | 70% | 2454 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,766 psi | 63% | 2441 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 31,937 psi | 56% | 2421 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,849 psi | 53% | 2264 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 45,687 psi | 81% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 45,063 psi | 80% | 2648 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,936 psi | 53% | 2421 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,901 psi | 74% | 2536 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 87 powders for 7 x 57 loaded with the .284 | 150gr | Prvi Partizan HP BT. Alliant Reloder-17 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,802 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 150gr | Prvi Partizan HP BT 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.