Load Specifications
Load data in caliber 7 x 57 with .284 | 120gr | Sierra Pro-Hunter bullet and 76 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 50,227 psi | 89% | 2900 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 51,097 psi | 90% | 2956 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,777 psi | 88% | 2966 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 51,126 psi | 90% | 2999 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,241 psi | 89% | 3051 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 86% | 49,110 psi | 87% | 2969 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 92% | 50,154 psi | 89% | 2969 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,341 psi | 85% | 2927 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 84% | 48,022 psi | 85% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,196 psi | 85% | 3064 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,748 psi | 88% | 2995 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,328 psi | 89% | 3012 fps | 98.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,124 psi | 87% | 3054 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,995 psi | 88% | 3100 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,718 psi | 86% | 2976 fps | 97.5% |
| Bofors RP3 | <<locked>> | 92% | 49,792 psi | 88% | 3005 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,299 psi | 89% | 2920 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,575 psi | 89% | 3009 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,559 psi | 86% | 3041 fps | 98% |
| Hodgdon H380 | <<locked>> | 90% | 47,718 psi | 84% | 2949 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 49,559 psi | 88% | 2982 fps | 99% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,150 psi | 80% | 2927 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,240 psi | 85% | 3005 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 62% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,705 psi | 90% | 2986 fps | 99.1% |
| IMR 3031 | <<locked>> | 86% | 48,776 psi | 86% | 2982 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,748 psi | 88% | 2956 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,587 psi | 84% | 2986 fps | 97.2% |
| IMR 4895 | <<locked>> | 88% | 48,356 psi | 85% | 2989 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 84% | 48,341 psi | 85% | 2927 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 86% | 48,095 psi | 85% | 2949 fps | 99.9% |
| Lovex S060 | <<locked>> | 86% | 49,197 psi | 87% | 2904 fps | 98.5% |
| Lovex S062 | <<locked>> | 90% | 49,371 psi | 87% | 2956 fps | 99.4% |
| Lovex S065 | <<locked>> | 96% | 48,559 psi | 86% | 2933 fps | 95.8% |
| Norma 201 | <<locked>> | 86% | 48,095 psi | 85% | 2920 fps | 99.2% |
| Norma 202 | <<locked>> | 86% | 48,515 psi | 86% | 2933 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,545 psi | 88% | 2999 fps | 98.6% |
| Norma URPᴾ | <<locked>> | 100% | 49,690 psi | 88% | 3038 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 90% | 49,734 psi | 88% | 3018 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 48,660 psi | 86% | 2930 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,747 psi | 84% | 2946 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,168 psi | 87% | 2920 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,215 psi | 62% | 1926 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 51,039 psi | 90% | 2969 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,082 psi | 89% | 3074 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,661 psi | 88% | 3107 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,908 psi | 88% | 3068 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,531 psi | 89% | 3087 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 84% | 49,342 psi | 87% | 2923 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,602 psi | 86% | 2920 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 94% | 49,661 psi | 88% | 2992 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,559 psi | 86% | 2933 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,095 psi | 85% | 2949 fps | 99.9% |
| Shooters World Precision | <<locked>> | 90% | 49,371 psi | 87% | 2956 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,124 psi | 85% | 2995 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,038 psi | 88% | 2959 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,937 psi | 90% | 2995 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,879 psi | 88% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,777 psi | 88% | 2877 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 49,110 psi | 87% | 2956 fps | 99.5% |
| Somchem S335 | <<locked>> | 86% | 49,153 psi | 87% | 2877 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,705 psi | 88% | 2959 fps | 98.5% |
| Somchem S355 | <<locked>> | 94% | 50,183 psi | 89% | 2992 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,309 psi | 78% | 2982 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 82% | 49,632 psi | 88% | 2851 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,995 psi | 88% | 2871 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 50,749 psi | 90% | 2949 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,907 psi | 86% | 2913 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,443 psi | 86% | 2923 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 98% | 48,965 psi | 87% | 2986 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 84% | 48,573 psi | 86% | 2927 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 90% | 50,212 psi | 89% | 2953 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,254 psi | 85% | 2986 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,053 psi | 88% | 2972 fps | 99.2% |
| Winchester 748 | <<locked>> | 84% | 48,124 psi | 85% | 2972 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,430 psi | 89% | 3002 fps | 99.1% |
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% | 44,222 psi | 78% | 2799 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,709 psi | 65% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,265 psi | 76% | 2851 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 34,693 psi | 61% | 2674 fps | 98.8% |
| Accurate 4350 | <<locked>> | 94% | 40,756 psi | 72% | 2864 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,683 psi | 72% | 2799 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 39,189 psi | 69% | 2746 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,743 psi | 76% | 2818 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 41,945 psi | 74% | 2822 fps | 100% |
| Alliant Power Pro 2000-MR | 48.5 gr | 84% | 42,047 psi | 74% | 2930 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,939 psi | 60% | 2654 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 38,769 psi | 69% | 2772 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,756 psi | 72% | 2874 fps | 95.2% |
| Alliant Reloder-17 | 48.9 gr | 86% | 35,723 psi | 63% | 2776 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,711 psi | 70% | 2792 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 33,170 psi | 59% | 2644 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,570 psi | 79% | 2815 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,104 psi | 73% | 2828 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,165 psi | 80% | 2972 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 88% | 44,657 psi | 79% | 2887 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 41,031 psi | 73% | 2812 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,998 psi | 62% | 2700 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,825 psi | 65% | 2762 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,889 psi | 46% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,320 psi | 70% | 2759 fps | 96.8% |
| IMR 3031 | <<locked>> | 80% | 40,074 psi | 71% | 2822 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 38,508 psi | 68% | 2723 fps | 95.5% |
| IMR 4831 | <<locked>> | 96% | 41,843 psi | 74% | 2871 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,405 psi | 66% | 2753 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 42,743 psi | 76% | 2818 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 39,305 psi | 69% | 2779 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 41,118 psi | 73% | 2743 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 36,042 psi | 64% | 2677 fps | 96.7% |
| Lovex S065 | <<locked>> | 94% | 45,556 psi | 81% | 2874 fps | 95% |
| Norma 201 | <<locked>> | 80% | 39,769 psi | 70% | 2753 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 40,030 psi | 71% | 2772 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 35,940 psi | 64% | 2707 fps | 95.1% |
| Norma URP | <<locked>> | 94% | 40,915 psi | 72% | 2864 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 37,681 psi | 67% | 2769 fps | 95.4% |
| Ramshot TAC | <<locked>> | 82% | 45,455 psi | 80% | 2864 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,756 psi | 74% | 2825 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,238 psi | 82% | 2867 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 46% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,819 psi | 85% | 2910 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,811 psi | 67% | 2815 fps | 95% |
| ReloadSwiss RS 60 | 45.5 gr | 80% | 31,198 psi | 55% | 2657 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 43,366 psi | 77% | 2943 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,340 psi | 84% | 3025 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,656 psi | 77% | 2815 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 37,869 psi | 67% | 2700 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 33,475 psi | 59% | 2648 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 45,556 psi | 81% | 2874 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,305 psi | 69% | 2779 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 36,042 psi | 64% | 2677 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,883 psi | 65% | 2756 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,627 psi | 77% | 2838 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,204 psi | 69% | 2759 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,307 psi | 73% | 2720 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,113 psi | 60% | 2572 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 46,079 psi | 81% | 2900 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 40,843 psi | 72% | 2723 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 40,437 psi | 71% | 2779 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 34,490 psi | 61% | 2661 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 32,024 psi | 57% | 2680 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 46,789 psi | 83% | 2805 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,466 psi | 73% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,927 psi | 65% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,797 psi | 67% | 2700 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 30,632 psi | 54% | 2536 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 43,091 psi | 76% | 2871 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 42,525 psi | 75% | 2808 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,376 psi | 64% | 2680 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 94% | 42,322 psi | 75% | 2871 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,694 psi | 63% | 2671 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,872 psi | 74% | 2851 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,392 psi | 68% | 2759 fps | 96.6% |
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 76 powders for 7 x 57 loaded with the .284 | 120gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,107 fps. Accurate 4350 gives the best case fill at 100 %, and 76 of the 76 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 120.0 gr projectile in 0.284" calls for a 1:16.0 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 | 120gr | Sierra Pro-Hunter 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.