Load Specifications
Load data in caliber 7 x 57 with .284 | 127gr | Geco ZERO LG bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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>> | 88% | 50,357 psi | 89% | 2789 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 48,602 psi | 86% | 2799 fps | 99.9% |
| Accurate 2495 | <<locked>> | 94% | 50,212 psi | 89% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 50,038 psi | 88% | 2861 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 49,995 psi | 88% | 2874 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 51,140 psi | 90% | 2743 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 49,734 psi | 88% | 2864 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 96% | 50,763 psi | 90% | 2858 fps | 97.9% |
| ADI AR 2219 | <<locked>> | 82% | 51,082 psi | 90% | 2858 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 49,023 psi | 87% | 2822 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 88% | 48,327 psi | 85% | 2822 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 50,024 psi | 88% | 2920 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 48,994 psi | 87% | 2953 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 49,632 psi | 88% | 2877 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 84% | 50,560 psi | 89% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 50,560 psi | 89% | 2897 fps | 98.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 50,009 psi | 88% | 2976 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 50,154 psi | 89% | 2736 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,124 psi | 87% | 2864 fps | 97.2% |
| Bofors RP3 | <<locked>> | 96% | 49,429 psi | 87% | 2884 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 48,501 psi | 86% | 2769 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 50,981 psi | 90% | 2900 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,153 psi | 87% | 2933 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 84% | 49,647 psi | 88% | 2835 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 50,705 psi | 90% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 47,805 psi | 85% | 2831 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 90% | 50,111 psi | 89% | 2874 fps | 98.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,523 psi | 70% | 2697 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,559 psi | 86% | 2897 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,040 psi | 60% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,283 psi | 85% | 2825 fps | 98.5% |
| IMR 3031 | <<locked>> | 90% | 48,791 psi | 86% | 2871 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 50,256 psi | 89% | 2841 fps | 98% |
| IMR 4198 | <<locked>> | 82% | 48,428 psi | 86% | 2726 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 48,356 psi | 85% | 2874 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 88% | 49,023 psi | 87% | 2822 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 84% | 48,443 psi | 86% | 2805 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 90% | 48,196 psi | 85% | 2841 fps | 99.8% |
| Lovex S060 | <<locked>> | 90% | 50,241 psi | 89% | 2799 fps | 98.4% |
| Lovex S062 | <<locked>> | 94% | 49,458 psi | 87% | 2841 fps | 99.2% |
| Norma 201 | <<locked>> | 90% | 48,472 psi | 86% | 2812 fps | 99.1% |
| Norma 202 | <<locked>> | 90% | 48,762 psi | 86% | 2825 fps | 100% |
| Norma 203B | <<locked>> | 94% | 49,647 psi | 88% | 2884 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 94% | 49,980 psi | 88% | 2907 fps | 98.3% |
| Ramshot TAC | <<locked>> | 88% | 49,632 psi | 88% | 2825 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 48,588 psi | 86% | 2848 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 86% | 50,299 psi | 89% | 2822 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,505 psi | 61% | 1808 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 48,733 psi | 86% | 2812 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 50,096 psi | 89% | 2956 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 49,908 psi | 88% | 2989 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 49,458 psi | 87% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 48,776 psi | 86% | 2808 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 98% | 49,313 psi | 87% | 2874 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,196 psi | 85% | 2841 fps | 99.8% |
| Shooters World Precision | <<locked>> | 94% | 49,458 psi | 87% | 2841 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,472 psi | 86% | 2772 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,138 psi | 85% | 2881 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,443 psi | 86% | 2776 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 50,778 psi | 90% | 2851 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,225 psi | 85% | 2831 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 50,850 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 50,444 psi | 89% | 2769 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 50,009 psi | 88% | 2858 fps | 99.4% |
| Somchem S335 | <<locked>> | 90% | 49,864 psi | 88% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 50,212 psi | 89% | 2848 fps | 98.3% |
| Somchem S355 | <<locked>> | 98% | 50,285 psi | 89% | 2877 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,421 psi | 68% | 2746 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 86% | 50,749 psi | 90% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 50,836 psi | 90% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 50,952 psi | 90% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,371 psi | 87% | 2808 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,544 psi | 86% | 2812 fps | 99.4% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,643 psi | 81% | 2805 fps | 96% |
| Vihtavuori N530 | <<locked>> | 88% | 49,501 psi | 88% | 2822 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 94% | 50,531 psi | 89% | 2844 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,152 psi | 83% | 2799 fps | 98.3% |
| Winchester 748 | <<locked>> | 88% | 48,501 psi | 86% | 2867 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 92% | 50,879 psi | 90% | 2890 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 2015 | <<locked>> | 80% | 39,088 psi | 69% | 2595 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,279 psi | 75% | 2690 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 31,096 psi | 55% | 2480 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 37,710 psi | 67% | 2631 fps | 98.5% |
| Accurate 4064 | <<locked>> | 80% | 29,443 psi | 52% | 2454 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 80% | 48,080 psi | 85% | 2697 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 38,406 psi | 68% | 2641 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 88% | 39,479 psi | 70% | 2641 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 47,558 psi | 84% | 2799 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,130 psi | 67% | 2608 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 36,564 psi | 65% | 2621 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,961 psi | 78% | 2808 fps | 97.8% |
| Alliant Power Pro 2000-MR | 44.4 gr | 88% | 42,743 psi | 76% | 2825 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,562 psi | 59% | 2549 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,541 psi | 79% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,972 psi | 69% | 2674 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 38,305 psi | 68% | 2733 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,717 psi | 83% | 2684 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,946 psi | 76% | 2749 fps | 95.7% |
| Bofors RP3 | <<locked>> | 86% | 34,983 psi | 62% | 2598 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,234 psi | 71% | 2612 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,766 psi | 63% | 2608 fps | 97% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,668 psi | 70% | 2743 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 43,337 psi | 77% | 2726 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,932 psi | 78% | 2743 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 44,918 psi | 79% | 2782 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 36,289 psi | 64% | 2598 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 37,130 psi | 66% | 2644 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,461 psi | 61% | 2605 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 45% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,911 psi | 62% | 2549 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 34,940 psi | 62% | 2608 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 38,899 psi | 69% | 2625 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 45,411 psi | 80% | 2677 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 37,173 psi | 66% | 2644 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,130 psi | 67% | 2608 fps | 97% |
| Lovex D073.5 | <<locked>> | 80% | 42,206 psi | 75% | 2690 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 33,924 psi | 60% | 2559 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 36,912 psi | 65% | 2536 fps | 95.2% |
| Lovex S062 | <<locked>> | 82% | 33,576 psi | 59% | 2516 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 35,012 psi | 62% | 2539 fps | 96.1% |
| Norma 202 | <<locked>> | 80% | 35,099 psi | 62% | 2559 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 38,232 psi | 68% | 2661 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 37,826 psi | 67% | 2667 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 46,528 psi | 82% | 2769 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,782 psi | 65% | 2608 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,321 psi | 73% | 2654 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,367 psi | 45% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,801 psi | 76% | 2703 fps | 99.1% |
| ReloadSwiss RS 52 | 42 gr | 86% | 40,393 psi | 71% | 2769 fps | 95.6% |
| ReloadSwiss RS 60 | 41.7 gr | 84% | 31,241 psi | 55% | 2556 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 38,667 psi | 68% | 2605 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 33,330 psi | 59% | 2490 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 35,143 psi | 62% | 2595 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,924 psi | 60% | 2559 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 33,576 psi | 59% | 2516 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,252 psi | 80% | 2717 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,537 psi | 70% | 2710 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,411 psi | 80% | 2726 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 44,208 psi | 78% | 2736 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 37,057 psi | 66% | 2608 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,999 psi | 65% | 2523 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,168 psi | 53% | 2379 fps | 98% |
| Somchem S321 | <<locked>> | 80% | 40,538 psi | 72% | 2680 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 36,289 psi | 64% | 2523 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 38,189 psi | 68% | 2621 fps | 95.4% |
| Somchem S355 | <<locked>> | 88% | 36,318 psi | 64% | 2605 fps | 95.6% |
| Somchem S365 | <<locked>> | 96% | 33,649 psi | 59% | 2625 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 42,148 psi | 75% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,115 psi | 66% | 2533 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 32,140 psi | 57% | 2493 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 33,156 psi | 59% | 2493 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 32,358 psi | 57% | 2490 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 98% | 42,844 psi | 76% | 2753 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 37,898 psi | 67% | 2602 fps | 97% |
| Vihtavuori N540 | <<locked>> | 80% | 31,952 psi | 56% | 2480 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,926 psi | 64% | 2569 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 36,593 psi | 65% | 2635 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 36,027 psi | 64% | 2605 fps | 95.6% |
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 79 powders for 7 x 57 loaded with the .284 | 127gr | Geco ZERO LG. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,989 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 79 of the 79 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 127.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for 7 x 57 with the .284 | 127gr | Geco ZERO LG 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.