Load Specifications
Load data in caliber 7 x 57 with .284 | 127gr | Hasler Hunting bullet and 84 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 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>> | 86% | 50,038 psi | 88% | 2802 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,109 psi | 85% | 2812 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 50,386 psi | 89% | 2858 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,690 psi | 88% | 2874 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 50,067 psi | 89% | 2894 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,122 psi | 82% | 2887 fps | 96.9% |
| ADI AR 2206H | <<locked>> | 88% | 49,356 psi | 87% | 2877 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 94% | 50,401 psi | 89% | 2874 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,747 psi | 86% | 2838 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 86% | 48,211 psi | 85% | 2831 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,792 psi | 88% | 2940 fps | 99.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,428 psi | 86% | 2969 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,458 psi | 87% | 2894 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 82% | 49,806 psi | 88% | 2808 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,343 psi | 89% | 2913 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,861 psi | 81% | 2890 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 49,690 psi | 88% | 2995 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,791 psi | 86% | 2881 fps | 97.6% |
| Bofors RP3 | <<locked>> | 94% | 49,472 psi | 87% | 2904 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 50,763 psi | 90% | 2831 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 50,372 psi | 89% | 2910 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,414 psi | 86% | 2940 fps | 98% |
| Hodgdon H322 | <<locked>> | 82% | 48,994 psi | 87% | 2844 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 50,038 psi | 88% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 51,068 psi | 90% | 2913 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 88% | 49,763 psi | 88% | 2890 fps | 99% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,945 psi | 74% | 2772 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,341 psi | 85% | 2913 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,374 psi | 61% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 51,097 psi | 90% | 2894 fps | 99.2% |
| IMR 3031 | <<locked>> | 88% | 48,849 psi | 86% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,705 psi | 88% | 2858 fps | 98.3% |
| IMR 4198 | <<locked>> | 82% | 50,546 psi | 89% | 2776 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,947 psi | 78% | 2825 fps | 96.4% |
| IMR 4895 | <<locked>> | 90% | 48,370 psi | 86% | 2894 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 86% | 48,747 psi | 86% | 2838 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 82% | 47,877 psi | 85% | 2815 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 88% | 47,906 psi | 85% | 2854 fps | 99.9% |
| Lovex S060 | <<locked>> | 88% | 49,792 psi | 88% | 2815 fps | 98.7% |
| Lovex S062 | <<locked>> | 92% | 49,066 psi | 87% | 2854 fps | 99.4% |
| Lovex S065 | <<locked>> | 98% | 48,312 psi | 85% | 2835 fps | 95.8% |
| Norma 201 | <<locked>> | 90% | 51,155 psi | 90% | 2877 fps | 99.6% |
| Norma 202 | <<locked>> | 88% | 48,211 psi | 85% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,516 psi | 88% | 2900 fps | 98.7% |
| Norma URPᴾ | <<locked>> | 100% | 46,093 psi | 81% | 2881 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 92% | 49,734 psi | 88% | 2923 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 48,907 psi | 86% | 2835 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,008 psi | 85% | 2858 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,719 psi | 88% | 2835 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,838 psi | 62% | 1837 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,283 psi | 85% | 2825 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 49,734 psi | 88% | 2972 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,763 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,832 psi | 81% | 2900 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 86% | 48,892 psi | 86% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 48,196 psi | 85% | 2818 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 96% | 49,052 psi | 87% | 2887 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,312 psi | 85% | 2835 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,906 psi | 85% | 2854 fps | 99.9% |
| Shooters World Precision | <<locked>> | 92% | 49,066 psi | 87% | 2854 fps | 99.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 51,053 psi | 90% | 2841 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,979 psi | 85% | 2900 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 50,821 psi | 90% | 2831 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,270 psi | 89% | 2867 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 50,894 psi | 90% | 2900 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,198 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 49,792 psi | 88% | 2782 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 49,530 psi | 88% | 2871 fps | 99.5% |
| Somchem S335 | <<locked>> | 88% | 49,211 psi | 87% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 49,806 psi | 88% | 2864 fps | 98.6% |
| Somchem S355 | <<locked>> | 96% | 49,966 psi | 88% | 2894 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,002 psi | 72% | 2825 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 50,111 psi | 89% | 2762 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,285 psi | 89% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 50,763 psi | 90% | 2854 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 48,950 psi | 87% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,138 psi | 85% | 2825 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,892 psi | 86% | 2890 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 48,820 psi | 86% | 2831 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 92% | 50,444 psi | 89% | 2861 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,587 psi | 84% | 2884 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2881 fps | 99.2% |
| Winchester 748 | <<locked>> | 86% | 48,167 psi | 85% | 2881 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,473 psi | 89% | 2907 fps | 99.2% |
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% | 41,205 psi | 73% | 2654 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,049 psi | 80% | 2756 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 33,359 psi | 59% | 2543 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,089 psi | 71% | 2700 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 31,604 psi | 56% | 2523 fps | 98.2% |
| Accurate 4350 | <<locked>> | 96% | 39,929 psi | 71% | 2766 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 38,087 psi | 67% | 2651 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 39,160 psi | 69% | 2657 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,190 psi | 71% | 2674 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 80% | 39,204 psi | 69% | 2680 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,557 psi | 82% | 2881 fps | 98.6% |
| Alliant Power Pro 2000-MR | 44.7 gr | 84% | 39,349 psi | 70% | 2772 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,460 psi | 59% | 2562 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,920 psi | 83% | 2762 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,769 psi | 69% | 2687 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,596 psi | 72% | 2776 fps | 95.2% |
| Alliant Reloder-17 | 46.1 gr | 88% | 35,418 psi | 63% | 2684 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,697 psi | 70% | 2703 fps | 95.2% |
| Bofors RP3 | <<locked>> | 82% | 32,619 psi | 58% | 2556 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,264 psi | 75% | 2674 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,247 psi | 68% | 2680 fps | 98% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,163 psi | 75% | 2818 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 80% | 45,803 psi | 81% | 2789 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,601 psi | 82% | 2808 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,597 psi | 74% | 2736 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,334 psi | 68% | 2664 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,606 psi | 61% | 2605 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,142 psi | 60% | 2615 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,599 psi | 45% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,854 psi | 65% | 2615 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 37,159 psi | 66% | 2671 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,493 psi | 68% | 2638 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 47,601 psi | 84% | 2730 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 41,060 psi | 73% | 2769 fps | 95.6% |
| IMR 4895 | <<locked>> | 82% | 37,144 psi | 66% | 2664 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 40,190 psi | 71% | 2674 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 44,831 psi | 79% | 2762 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 36,274 psi | 64% | 2628 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 38,856 psi | 69% | 2602 fps | 96.3% |
| Lovex S062 | <<locked>> | 80% | 33,489 psi | 59% | 2533 fps | 96% |
| Lovex S065 | <<locked>> | 96% | 45,266 psi | 80% | 2779 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,101 psi | 66% | 2605 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 37,231 psi | 66% | 2625 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 35,621 psi | 63% | 2618 fps | 95.2% |
| Norma URP | <<locked>> | 96% | 40,335 psi | 71% | 2766 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 84% | 37,652 psi | 67% | 2684 fps | 95.6% |
| Ramshot TAC | <<locked>> | 84% | 45,643 psi | 81% | 2776 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,088 psi | 69% | 2680 fps | 96.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,613 psi | 77% | 2723 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,599 psi | 45% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,947 psi | 79% | 2762 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,536 psi | 66% | 2723 fps | 95.1% |
| ReloadSwiss RS 60 | 43 gr | 82% | 31,024 psi | 55% | 2572 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,844 psi | 76% | 2841 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 40,770 psi | 72% | 2667 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 35,157 psi | 62% | 2552 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 84% | 32,750 psi | 58% | 2552 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,266 psi | 80% | 2779 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,274 psi | 64% | 2628 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 33,489 psi | 59% | 2533 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,848 psi | 85% | 2785 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,782 psi | 65% | 2671 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,819 psi | 85% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,511 psi | 77% | 2743 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,680 psi | 65% | 2618 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,899 psi | 69% | 2585 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,894 psi | 56% | 2438 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 42,989 psi | 76% | 2749 fps | 98.7% |
| Somchem S335 | <<locked>> | 80% | 38,348 psi | 68% | 2585 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,652 psi | 67% | 2631 fps | 95.7% |
| Somchem S355 | <<locked>> | 84% | 33,866 psi | 60% | 2562 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 31,488 psi | 56% | 2585 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,208 psi | 78% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,102 psi | 69% | 2589 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,214 psi | 60% | 2556 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,143 psi | 62% | 2556 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 30,153 psi | 53% | 2451 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 42,786 psi | 76% | 2776 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 39,987 psi | 71% | 2664 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 33,765 psi | 60% | 2539 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 96% | 41,713 psi | 74% | 2772 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,708 psi | 63% | 2589 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 38,899 psi | 69% | 2703 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,650 psi | 63% | 2612 fps | 95.9% |
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 84 powders for 7 x 57 loaded with the .284 | 127gr | Hasler Hunting. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,009 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 127.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 127gr | Hasler Hunting 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.