Load Specifications
Load data in caliber 7 x 57 with .284 | 140gr | Sierra Pro-Hunter bullet and 84 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.
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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% | 49,980 psi | 88% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 48,196 psi | 85% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,734 psi | 88% | 2743 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 48,283 psi | 85% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 50,618 psi | 89% | 2841 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 84% | 48,936 psi | 87% | 2749 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 90% | 50,154 psi | 89% | 2753 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,153 psi | 85% | 2707 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 82% | 48,254 psi | 85% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,921 psi | 85% | 2848 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,864 psi | 88% | 2776 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 88% | 50,314 psi | 89% | 2792 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,211 psi | 87% | 2848 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,864 psi | 88% | 2881 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,231 psi | 66% | 2628 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,495 psi | 73% | 2776 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,414 psi | 86% | 2759 fps | 98.6% |
| Bofors RP3 | <<locked>> | 90% | 49,937 psi | 88% | 2785 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,096 psi | 89% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 50,169 psi | 89% | 2782 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 50,981 psi | 90% | 2795 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 96% | 50,372 psi | 89% | 2838 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 49,371 psi | 87% | 2762 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,646 psi | 86% | 2779 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,298 psi | 85% | 2789 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 63% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,589 psi | 89% | 2766 fps | 99.7% |
| IMR 3031 | <<locked>> | 84% | 49,197 psi | 87% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,647 psi | 88% | 2736 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,617 psi | 88% | 2710 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,414 psi | 87% | 2733 fps | 95.9% |
| IMR 4831 | <<locked>> | 98% | 48,196 psi | 85% | 2782 fps | 98.5% |
| IMR 4895 | <<locked>> | 86% | 48,501 psi | 86% | 2772 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 82% | 48,153 psi | 85% | 2707 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 84% | 48,153 psi | 85% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,081 psi | 87% | 2687 fps | 99.4% |
| Lovex S062 | <<locked>> | 88% | 49,400 psi | 87% | 2736 fps | 99.9% |
| Lovex S065 | <<locked>> | 94% | 48,530 psi | 86% | 2726 fps | 97.2% |
| Lovex S070 | <<locked>> | 96% | 49,342 psi | 87% | 2759 fps | 96.3% |
| Norma 201 | <<locked>> | 86% | 51,053 psi | 90% | 2753 fps | 99.9% |
| Norma 202 | <<locked>> | 84% | 48,211 psi | 85% | 2707 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,545 psi | 88% | 2779 fps | 99.4% |
| Norma URP | <<locked>> | 98% | 50,169 psi | 89% | 2835 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 88% | 49,559 psi | 88% | 2799 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 98% | 48,849 psi | 86% | 2818 fps | 96.9% |
| Ramshot TAC | <<locked>> | 82% | 48,240 psi | 85% | 2713 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 50,981 psi | 90% | 2789 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 63% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,240 psi | 85% | 2723 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 50,198 psi | 89% | 2851 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,632 psi | 88% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 50,183 psi | 89% | 2861 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 50,473 psi | 89% | 2884 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 82% | 49,110 psi | 87% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,559 psi | 86% | 2703 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 92% | 49,763 psi | 88% | 2776 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,530 psi | 86% | 2726 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,153 psi | 85% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,400 psi | 87% | 2736 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 96% | 49,342 psi | 87% | 2759 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,167 psi | 85% | 2782 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,835 psi | 88% | 2746 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 50,618 psi | 89% | 2776 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,501 psi | 88% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,516 psi | 88% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,646 psi | 86% | 2677 fps | 95.8% |
| Somchem S335 | <<locked>> | 84% | 48,950 psi | 87% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,313 psi | 87% | 2736 fps | 99.3% |
| Somchem S355 | <<locked>> | 92% | 50,372 psi | 89% | 2779 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,964 psi | 85% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 49,748 psi | 88% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 50,894 psi | 90% | 2720 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,834 psi | 86% | 2690 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,414 psi | 86% | 2710 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 96% | 49,284 psi | 87% | 2779 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 82% | 48,486 psi | 86% | 2707 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 88% | 50,270 psi | 89% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,472 psi | 86% | 2785 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,321 psi | 71% | 2703 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,516 psi | 88% | 2759 fps | 99.8% |
| Winchester 748 | <<locked>> | 82% | 48,037 psi | 85% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 50,372 psi | 89% | 2838 fps | 96.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,301 psi | 59% | 2605 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 50,386 psi | 89% | 2782 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% | 46,949 psi | 83% | 2621 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,610 psi | 70% | 2543 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,354 psi | 82% | 2690 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,463 psi | 66% | 2533 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,839 psi | 63% | 2559 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 43,236 psi | 76% | 2644 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 36,782 psi | 65% | 2493 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,266 psi | 80% | 2657 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 45,455 psi | 80% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,247 psi | 69% | 2667 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,216 psi | 64% | 2513 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,015 psi | 69% | 2579 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,143 psi | 64% | 2569 fps | 95.3% |
| Alliant Reloder-17 | 43 gr | 80% | 31,299 psi | 55% | 2470 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,982 psi | 58% | 2520 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,682 psi | 68% | 2710 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,322 psi | 75% | 2644 fps | 97.3% |
| Bofors RP3 | <<locked>> | 80% | 35,723 psi | 63% | 2516 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,195 psi | 83% | 2648 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,048 psi | 78% | 2677 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 82% | 39,175 psi | 69% | 2572 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 94% | 46,978 psi | 83% | 2776 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 43,627 psi | 77% | 2657 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,067 psi | 55% | 2411 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,465 psi | 70% | 2621 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,237 psi | 46% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,974 psi | 74% | 2612 fps | 98.6% |
| IMR 3031 | <<locked>> | 80% | 43,062 psi | 76% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,595 psi | 68% | 2530 fps | 97% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,746 psi | 83% | 2657 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,514 psi | 82% | 2680 fps | 95.1% |
| IMR 4831 | <<locked>> | 90% | 37,014 psi | 65% | 2566 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 39,943 psi | 71% | 2608 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 45,266 psi | 80% | 2657 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 42,076 psi | 74% | 2625 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,482 psi | 77% | 2585 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 38,522 psi | 68% | 2536 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 40,408 psi | 71% | 2572 fps | 95.1% |
| Lovex S070 | <<locked>> | 94% | 46,079 psi | 81% | 2700 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 42,351 psi | 75% | 2598 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 42,540 psi | 75% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,377 psi | 68% | 2566 fps | 97.4% |
| Norma URP | <<locked>> | 88% | 36,187 psi | 64% | 2559 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 37,869 psi | 67% | 2575 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 42,960 psi | 76% | 2707 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 45,179 psi | 80% | 2657 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,570 psi | 79% | 2677 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 47% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 45,165 psi | 80% | 2664 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,625 psi | 72% | 2674 fps | 97.4% |
| ReloadSwiss RS 60 | 43 gr | 80% | 33,301 psi | 59% | 2539 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,072 psi | 67% | 2628 fps | 95.6% |
| ReloadSwiss RS 70 | 50.2 gr | 92% | 41,133 psi | 73% | 2700 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 46,195 psi | 82% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,263 psi | 71% | 2552 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 33,591 psi | 59% | 2457 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,408 psi | 71% | 2572 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,076 psi | 74% | 2625 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,522 psi | 68% | 2536 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 94% | 46,079 psi | 81% | 2700 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,592 psi | 61% | 2507 fps | 96.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,468 psi | 77% | 2631 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,626 psi | 74% | 2612 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,874 psi | 78% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,405 psi | 64% | 2428 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,368 psi | 80% | 2621 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 43,381 psi | 77% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,076 psi | 76% | 2628 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 34,606 psi | 61% | 2467 fps | 96.8% |
| Somchem S365 | <<locked>> | 84% | 28,471 psi | 50% | 2398 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 44,164 psi | 78% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,740 psi | 70% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,205 psi | 71% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,764 psi | 58% | 2405 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 37,942 psi | 67% | 2562 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,208 psi | 80% | 2648 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,841 psi | 69% | 2533 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 37,304 psi | 66% | 2566 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 94% | 33,199 psi | 59% | 2539 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,212 psi | 55% | 2379 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 44,788 psi | 79% | 2694 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 47,282 psi | 84% | 2782 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,212 psi | 55% | 2536 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,075 psi | 73% | 2615 fps | 98.6% |
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 101 powders for 7 x 57 loaded with the .284 | 140gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,887 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 | 140gr | Sierra Pro-Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, 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.