Load Specifications
Load data in caliber 7 x 57 with .284 | 140gr | Prvi Partizan PSP BT bullet and 81 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 70.
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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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% | 49,385 psi | 87% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 50,792 psi | 90% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,182 psi | 87% | 2730 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 50,821 psi | 90% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 49,777 psi | 88% | 2825 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 84% | 48,356 psi | 85% | 2736 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 90% | 49,385 psi | 87% | 2736 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 50,691 psi | 90% | 2743 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 50,879 psi | 90% | 2726 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 50,908 psi | 90% | 2894 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,052 psi | 87% | 2759 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 88% | 49,806 psi | 88% | 2779 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 48,501 psi | 86% | 2828 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,168 psi | 87% | 2867 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,738 psi | 65% | 2608 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 47,935 psi | 85% | 2746 fps | 98.4% |
| Bofors RP3 | <<locked>> | 90% | 49,414 psi | 87% | 2776 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 49,588 psi | 88% | 2684 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 49,661 psi | 88% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 50,575 psi | 89% | 2782 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 96% | 49,690 psi | 88% | 2822 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 84% | 48,834 psi | 86% | 2746 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,906 psi | 85% | 2766 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 50,908 psi | 90% | 2828 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 62% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,038 psi | 88% | 2753 fps | 99.6% |
| IMR 3031 | <<locked>> | 84% | 48,530 psi | 86% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 48,820 psi | 86% | 2720 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,211 psi | 87% | 2697 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,589 psi | 89% | 2818 fps | 98.8% |
| IMR 4895 | <<locked>> | 88% | 51,053 psi | 90% | 2812 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 84% | 50,691 psi | 90% | 2743 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 51,068 psi | 90% | 2769 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 48,573 psi | 86% | 2674 fps | 99.3% |
| Lovex S062 | <<locked>> | 88% | 48,602 psi | 86% | 2720 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 51,169 psi | 90% | 2766 fps | 97.7% |
| Lovex S070 | <<locked>> | 96% | 48,602 psi | 86% | 2743 fps | 96% |
| Norma 201 | <<locked>> | 86% | 50,531 psi | 89% | 2740 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 50,749 psi | 90% | 2743 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,052 psi | 87% | 2766 fps | 99.3% |
| Norma URP | <<locked>> | 98% | 49,385 psi | 87% | 2818 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 88% | 49,095 psi | 87% | 2789 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 98% | 48,240 psi | 85% | 2805 fps | 96.7% |
| Ramshot TAC | <<locked>> | 84% | 51,068 psi | 90% | 2756 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 50,227 psi | 89% | 2772 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 63% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 50,894 psi | 90% | 2762 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 49,647 psi | 88% | 2838 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,240 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 49,487 psi | 87% | 2844 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 49,879 psi | 88% | 2871 fps | 98% |
| Rottweil R 901 | <<locked>> | 82% | 48,515 psi | 86% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,082 psi | 90% | 2740 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 49,313 psi | 87% | 2766 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,169 psi | 90% | 2766 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,068 psi | 90% | 2769 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 48,602 psi | 86% | 2720 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 96% | 48,602 psi | 86% | 2743 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 50,792 psi | 90% | 2822 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,052 psi | 87% | 2726 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 50,169 psi | 89% | 2762 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 48,979 psi | 87% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,037 psi | 87% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,184 psi | 90% | 2713 fps | 96.3% |
| Somchem S335 | <<locked>> | 84% | 48,428 psi | 86% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 48,892 psi | 86% | 2726 fps | 99.2% |
| Somchem S355 | <<locked>> | 92% | 49,922 psi | 88% | 2766 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,239 psi | 84% | 2822 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 49,211 psi | 87% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 50,285 psi | 89% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,283 psi | 85% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 51,126 psi | 90% | 2746 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 48,515 psi | 86% | 2762 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 84% | 51,082 psi | 90% | 2743 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 49,530 psi | 88% | 2720 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 50,879 psi | 90% | 2818 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,610 psi | 70% | 2687 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 48,994 psi | 87% | 2746 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 50,633 psi | 90% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 49,690 psi | 88% | 2822 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 49,632 psi | 88% | 2766 fps | 99.6% |
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% | 46,296 psi | 82% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,001 psi | 69% | 2530 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,818 psi | 81% | 2677 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,869 psi | 65% | 2520 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 35,360 psi | 63% | 2543 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 42,714 psi | 76% | 2631 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,318 psi | 64% | 2477 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,759 psi | 79% | 2641 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,759 psi | 79% | 2638 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,551 psi | 68% | 2644 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,694 psi | 63% | 2497 fps | 97.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,493 psi | 68% | 2562 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,752 psi | 63% | 2556 fps | 95% |
| Alliant Reloder-17 | 43.5 gr | 82% | 32,909 psi | 58% | 2510 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,663 psi | 58% | 2503 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,829 psi | 74% | 2631 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 35,201 psi | 62% | 2500 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,630 psi | 82% | 2635 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,265 psi | 76% | 2657 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 82% | 38,682 psi | 68% | 2556 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 46,325 psi | 82% | 2762 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,062 psi | 76% | 2641 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,676 psi | 54% | 2398 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,914 psi | 69% | 2608 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,092 psi | 46% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,466 psi | 73% | 2595 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 42,424 psi | 75% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,101 psi | 67% | 2513 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,992 psi | 81% | 2638 fps | 95% |
| IMR 4831 | <<locked>> | 90% | 36,550 psi | 65% | 2556 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,392 psi | 70% | 2592 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 44,759 psi | 79% | 2641 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 41,510 psi | 73% | 2608 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,960 psi | 76% | 2572 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 38,014 psi | 67% | 2520 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 42,525 psi | 75% | 2612 fps | 95.7% |
| Lovex S070 | <<locked>> | 94% | 45,672 psi | 81% | 2687 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 41,814 psi | 74% | 2585 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 41,945 psi | 74% | 2595 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,855 psi | 67% | 2552 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 38,130 psi | 67% | 2598 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,202 psi | 66% | 2559 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 42,380 psi | 75% | 2690 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,730 psi | 79% | 2644 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,121 psi | 78% | 2664 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,484 psi | 47% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,701 psi | 79% | 2654 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,045 psi | 71% | 2661 fps | 97.2% |
| ReloadSwiss RS 60 | 42.5 gr | 80% | 32,909 psi | 58% | 2526 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,420 psi | 66% | 2612 fps | 95.3% |
| ReloadSwiss RS 70 | 49.6 gr | 92% | 40,567 psi | 72% | 2680 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,847 psi | 81% | 2635 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,987 psi | 71% | 2539 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 33,286 psi | 59% | 2448 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,525 psi | 75% | 2612 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,510 psi | 73% | 2608 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 38,014 psi | 67% | 2520 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 45,672 psi | 81% | 2687 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,156 psi | 60% | 2493 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,975 psi | 76% | 2618 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,176 psi | 73% | 2598 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,308 psi | 77% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,882 psi | 63% | 2415 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,993 psi | 85% | 2664 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 42,844 psi | 76% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,612 psi | 75% | 2615 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 34,127 psi | 60% | 2454 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 28,108 psi | 50% | 2382 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 43,555 psi | 77% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,146 psi | 69% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,943 psi | 71% | 2536 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,532 psi | 58% | 2395 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 37,507 psi | 66% | 2549 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 44,657 psi | 79% | 2638 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 38,363 psi | 68% | 2523 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 36,651 psi | 65% | 2546 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 34,998 psi | 62% | 2582 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,893 psi | 55% | 2365 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 44,251 psi | 78% | 2684 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 46,601 psi | 82% | 2766 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,553 psi | 72% | 2602 fps | 98.4% |
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 81 powders for 7 x 57 loaded with the .284 | 140gr | Prvi Partizan PSP BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,894 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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 70 rank at the top here: for 7 x 57 with the .284 | 140gr | Prvi Partizan PSP 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.