Load Specifications
Load data in caliber 7 x 57 R with .284 | 100gr | Barnes Solid bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and IMR 3031.
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>> | 86% | 44,005 psi | 89% | 3018 fps | 99.9% |
| Accurate 2460 | <<locked>> | 82% | 42,018 psi | 85% | 2999 fps | 98% |
| Accurate 2495 | <<locked>> | 92% | 43,105 psi | 87% | 3054 fps | 99.9% |
| Accurate 2520 | <<locked>> | 86% | 42,946 psi | 87% | 3054 fps | 97.9% |
| Accurate 4064 | <<locked>> | 94% | 43,091 psi | 87% | 3077 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 42,859 psi | 87% | 3018 fps | 96% |
| Alliant AR-Comp | <<locked>> | 88% | 43,671 psi | 89% | 3097 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 44,179 psi | 90% | 3041 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 84% | 42,525 psi | 86% | 2969 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 43,482 psi | 88% | 3087 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 82% | 42,815 psi | 87% | 3045 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 82% | 43,627 psi | 88% | 3058 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 44,396 psi | 90% | 3136 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,736 psi | 68% | 2008 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 41,727 psi | 85% | 3084 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 42,859 psi | 87% | 3018 fps | 96% |
| Lovex D073.5 | <<locked>> | 82% | 41,974 psi | 85% | 2999 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 90% | 44,019 psi | 89% | 3087 fps | 98.1% |
| Lovex S062 | <<locked>> | 92% | 42,931 psi | 87% | 3035 fps | 96.2% |
| Norma 201 | <<locked>> | 88% | 42,105 psi | 85% | 3005 fps | 95.9% |
| Norma 202 | <<locked>> | 88% | 42,264 psi | 86% | 3031 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,779 psi | 69% | 2054 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,235 psi | 86% | 3009 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 43,192 psi | 88% | 3156 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 86% | 43,468 psi | 88% | 3022 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 90% | 42,612 psi | 86% | 3005 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 44,019 psi | 89% | 3087 fps | 98.1% |
| Shooters World Precision | <<locked>> | 92% | 42,931 psi | 87% | 3035 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 44,237 psi | 90% | 2986 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 43,482 psi | 88% | 2976 fps | 99.2% |
| Somchem S321 | <<locked>> | 84% | 43,149 psi | 88% | 3045 fps | 96.5% |
| Somchem S335 | <<locked>> | 88% | 43,497 psi | 88% | 2986 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 84% | 44,338 psi | 90% | 2986 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 44,048 psi | 89% | 2989 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 92% | 43,613 psi | 88% | 3061 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 90% | 42,482 psi | 86% | 3009 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 98% | 44,295 psi | 90% | 3051 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 86% | 42,685 psi | 87% | 3012 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 92% | 43,714 psi | 89% | 3045 fps | 98.5% |
| Winchester 748 | <<locked>> | 88% | 44,309 psi | 90% | 3114 fps | 97.5% |
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% | 36,201 psi | 73% | 2848 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 39,131 psi | 79% | 2933 fps | 97.3% |
| Accurate 2495 | <<locked>> | 80% | 28,732 psi | 58% | 2703 fps | 97.2% |
| Accurate 2520 | <<locked>> | 80% | 34,606 psi | 70% | 2858 fps | 95.4% |
| Accurate 4064 | 41.9 gr | 84% | 31,009 psi | 63% | 2782 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 39,987 psi | 81% | 2956 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 33,460 psi | 68% | 2871 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,365 psi | 84% | 2982 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,579 psi | 76% | 2854 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 84% | 37,797 psi | 77% | 2956 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 40,103 psi | 81% | 2986 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 40,654 psi | 82% | 2995 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 41,727 psi | 85% | 3074 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,787 psi | 50% | 1795 fps | 100% |
| IMR 3031 | 39.4 gr | 80% | 31,865 psi | 65% | 2835 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 84% | 39,987 psi | 81% | 2956 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 39,117 psi | 79% | 2933 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 84% | 35,897 psi | 73% | 2904 fps | 95.9% |
| Lovex S062 | <<locked>> | 90% | 40,263 psi | 82% | 2976 fps | 95.4% |
| Norma 201 | <<locked>> | 86% | 39,537 psi | 80% | 2943 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 32,401 psi | 66% | 2785 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,947 psi | 51% | 1837 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,624 psi | 80% | 2949 fps | 96.7% |
| ReloadSwiss RS 60 | 49.2 gr | 92% | 37,753 psi | 77% | 3015 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 36,260 psi | 74% | 2854 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 88% | 39,958 psi | 81% | 2946 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 35,897 psi | 73% | 2904 fps | 95.9% |
| Shooters World Precision | <<locked>> | 90% | 40,263 psi | 82% | 2976 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,548 psi | 70% | 2759 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 29,921 psi | 61% | 2651 fps | 95.6% |
| Somchem S321 | <<locked>> | 82% | 40,277 psi | 82% | 2982 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 33,895 psi | 69% | 2762 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 80% | 39,262 psi | 80% | 2881 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 34,418 psi | 70% | 2776 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 29,443 psi | 60% | 2720 fps | 97.4% |
| Vihtavuori N140 | <<locked>> | 80% | 30,777 psi | 62% | 2720 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 94% | 38,870 psi | 79% | 2933 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 84% | 40,030 psi | 81% | 2949 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 84% | 33,765 psi | 68% | 2812 fps | 95.7% |
| Winchester 748 | <<locked>> | 84% | 38,522 psi | 78% | 2982 fps | 95.8% |
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 73 powders for 7 x 57 R loaded with the .284 | 100gr | Barnes Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,156 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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, Accurate 4064, IMR 3031 rank at the top here: for 7 x 57 R with the .284 | 100gr | Barnes Solid 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.