Load Specifications
Load data in caliber 7 x 57 R with .284 | 104gr | GM Geschoss-Manufaktur Splinter Tip bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 3031 and Accurate 4064.
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>> | 88% | 44,541 psi | 90% | 2966 fps | 99.9% |
| Accurate 2460 | <<locked>> | 84% | 42,554 psi | 86% | 2953 fps | 98.2% |
| Accurate 2495 | <<locked>> | 94% | 42,873 psi | 87% | 2995 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 43,221 psi | 88% | 3005 fps | 98.1% |
| Accurate 4064 | <<locked>> | 96% | 43,004 psi | 87% | 3022 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 43,453 psi | 88% | 2972 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 90% | 44,556 psi | 90% | 3051 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 43,004 psi | 87% | 3012 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 41,785 psi | 85% | 2930 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 86% | 43,265 psi | 88% | 2927 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 44,135 psi | 90% | 3041 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 84% | 43,555 psi | 88% | 3002 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 84% | 44,599 psi | 90% | 3018 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,417 psi | 68% | 1946 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 42,148 psi | 85% | 3031 fps | 99.6% |
| IMR 4198 | <<locked>> | 82% | 43,265 psi | 88% | 2920 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 43,453 psi | 88% | 2972 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 84% | 42,308 psi | 86% | 2946 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 92% | 44,440 psi | 90% | 3038 fps | 98.3% |
| Lovex S062 | <<locked>> | 94% | 43,250 psi | 88% | 2982 fps | 96.4% |
| Norma 201 | <<locked>> | 90% | 42,424 psi | 86% | 2953 fps | 96.1% |
| Norma 202 | <<locked>> | 90% | 42,743 psi | 87% | 2982 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,402 psi | 68% | 1988 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 43,308 psi | 88% | 2972 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 43,888 psi | 89% | 3110 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 88% | 43,642 psi | 89% | 2969 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 92% | 42,714 psi | 87% | 2949 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 44,440 psi | 90% | 3038 fps | 98.3% |
| Shooters World Precision | <<locked>> | 94% | 43,250 psi | 88% | 2982 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 42,627 psi | 86% | 2946 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 42,409 psi | 86% | 2884 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 44,469 psi | 90% | 2933 fps | 99.4% |
| Somchem S321 | <<locked>> | 86% | 43,845 psi | 89% | 3002 fps | 96.8% |
| Somchem S335 | <<locked>> | 90% | 43,990 psi | 89% | 2933 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 84% | 42,598 psi | 86% | 2890 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 42,250 psi | 86% | 2894 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 94% | 43,859 psi | 89% | 3005 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 43,221 psi | 88% | 2963 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 98% | 41,901 psi | 85% | 2943 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 88% | 43,671 psi | 89% | 2972 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 94% | 44,425 psi | 90% | 2999 fps | 98.7% |
| Winchester 748 | <<locked>> | 88% | 42,047 psi | 85% | 3005 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 92% | 44,440 psi | 90% | 3031 fps | 95.8% |
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% | 34,113 psi | 69% | 2743 fps | 98.7% |
| Accurate 2460 | <<locked>> | 80% | 37,028 psi | 75% | 2831 fps | 96.9% |
| Accurate 2495 | <<locked>> | 80% | 26,353 psi | 53% | 2585 fps | 96.4% |
| Accurate 2520 | <<locked>> | 82% | 34,954 psi | 71% | 2815 fps | 95.7% |
| Accurate 4064 | 40.8 gr | 86% | 30,574 psi | 62% | 2723 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 40,640 psi | 82% | 2913 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 31,604 psi | 64% | 2769 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 40,364 psi | 82% | 2956 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,204 psi | 80% | 2877 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 38,203 psi | 77% | 2812 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 86% | 38,479 psi | 78% | 2917 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 38,101 psi | 77% | 2881 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 80% | 38,667 psi | 78% | 2894 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,555 psi | 50% | 1739 fps | 100% |
| IMR 3031 | 37.5 gr | 80% | 30,023 psi | 61% | 2730 fps | 96.6% |
| IMR 4198 | <<locked>> | 80% | 40,596 psi | 82% | 2867 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 40,640 psi | 82% | 2913 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 80% | 36,854 psi | 75% | 2825 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 84% | 33,446 psi | 68% | 2789 fps | 95.1% |
| Lovex S062 | <<locked>> | 92% | 40,422 psi | 82% | 2920 fps | 95.6% |
| Norma 201 | <<locked>> | 88% | 39,929 psi | 81% | 2897 fps | 95.4% |
| Norma 202 | <<locked>> | 82% | 32,648 psi | 66% | 2740 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,410 psi | 50% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,782 psi | 77% | 2848 fps | 96.2% |
| ReloadSwiss RS 60 | 47.9 gr | 94% | 38,406 psi | 78% | 2972 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 33,997 psi | 69% | 2740 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 90% | 40,147 psi | 81% | 2894 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 33,446 psi | 68% | 2789 fps | 95.1% |
| Shooters World Precision | <<locked>> | 92% | 40,422 psi | 82% | 2920 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,943 psi | 81% | 2890 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,706 psi | 66% | 2657 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 28,152 psi | 57% | 2549 fps | 95% |
| Somchem S321 | <<locked>> | 82% | 38,072 psi | 77% | 2874 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 32,111 psi | 65% | 2661 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 80% | 37,362 psi | 76% | 2779 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 32,619 psi | 66% | 2677 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 27,485 psi | 56% | 2612 fps | 96.7% |
| Vihtavuori N140 | <<locked>> | 82% | 31,024 psi | 63% | 2677 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 96% | 39,320 psi | 80% | 2887 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 86% | 40,756 psi | 83% | 2910 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 84% | 31,908 psi | 65% | 2710 fps | 95.1% |
| Winchester 748 | <<locked>> | 84% | 36,680 psi | 74% | 2881 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 41,524 psi | 84% | 2969 fps | 95% |
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 74 powders for 7 x 57 R loaded with the .284 | 104gr | GM Geschoss-Manufaktur Splinter Tip. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,110 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 104.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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, IMR 3031, Accurate 4064 rank at the top here: for 7 x 57 R with the .284 | 104gr | GM Geschoss-Manufaktur Splinter Tip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, ADI AR 2208, Alliant Power Pro 2000-MR 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.