Load Specifications
Load data in caliber 7 x 57 R with .284 | 120gr | Barnes TSX BT bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Reloder- TS 15.5.
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>> | 82% | 41,858 psi | 85% | 2733 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 44,309 psi | 90% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 43,685 psi | 89% | 2835 fps | 99.3% |
| Accurate 4064 | <<locked>> | 92% | 44,498 psi | 90% | 2867 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 44,063 psi | 89% | 2841 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 84% | 43,569 psi | 88% | 2805 fps | 98% |
| Alliant AR-Comp | <<locked>> | 84% | 42,322 psi | 86% | 2812 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,976 psi | 89% | 2858 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,959 psi | 85% | 2818 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 44,251 psi | 90% | 2949 fps | 97.5% |
| Bofors RP3 | <<locked>> | 92% | 43,424 psi | 88% | 2861 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 43,076 psi | 87% | 2753 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,597 psi | 84% | 2815 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,960 psi | 87% | 2897 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 44,382 psi | 90% | 2854 fps | 97.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,842 psi | 81% | 2782 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,627 psi | 86% | 2871 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,200 psi | 69% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,757 psi | 87% | 2805 fps | 97.1% |
| IMR 3031 | <<locked>> | 86% | 42,989 psi | 87% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 44,338 psi | 90% | 2818 fps | 96.5% |
| IMR 4895 | <<locked>> | 88% | 42,975 psi | 87% | 2854 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 84% | 43,569 psi | 88% | 2805 fps | 98% |
| Lovex D073.6 | <<locked>> | 86% | 42,293 psi | 86% | 2818 fps | 99.1% |
| Lovex S060 | <<locked>> | 84% | 42,206 psi | 86% | 2733 fps | 96.5% |
| Lovex S062 | <<locked>> | 90% | 43,671 psi | 89% | 2822 fps | 98.2% |
| Norma 201 | <<locked>> | 86% | 42,989 psi | 87% | 2795 fps | 98% |
| Norma 202 | <<locked>> | 86% | 43,163 psi | 88% | 2812 fps | 99.6% |
| Norma 203B | <<locked>> | 90% | 44,048 psi | 89% | 2864 fps | 97% |
| Ramshot Big Game | <<locked>> | 90% | 43,990 psi | 89% | 2881 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,569 psi | 86% | 2818 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 44,396 psi | 90% | 2799 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,345 psi | 70% | 1873 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 43,787 psi | 89% | 2923 fps | 96.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 44,048 psi | 89% | 2959 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 43,874 psi | 89% | 2795 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 88% | 43,221 psi | 88% | 2792 fps | 98% |
| Rottweil R 903 | <<locked>> | 94% | 43,308 psi | 88% | 2848 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,293 psi | 86% | 2818 fps | 99.1% |
| Shooters World Precision | <<locked>> | 90% | 43,671 psi | 89% | 2822 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,409 psi | 86% | 2854 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,627 psi | 86% | 2808 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,177 psi | 86% | 2713 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,756 psi | 85% | 2710 fps | 99.8% |
| Somchem S321 | <<locked>> | 82% | 43,903 psi | 89% | 2831 fps | 98.4% |
| Somchem S335 | <<locked>> | 86% | 44,353 psi | 90% | 2766 fps | 99.9% |
| Somchem S341 | <<locked>> | 86% | 44,077 psi | 89% | 2825 fps | 96.8% |
| Somchem S355 | <<locked>> | 94% | 44,440 psi | 90% | 2858 fps | 97.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,566 psi | 78% | 2828 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 42,264 psi | 86% | 2717 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,177 psi | 86% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 43,569 psi | 88% | 2795 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 94% | 42,670 psi | 87% | 2792 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 84% | 43,453 psi | 88% | 2799 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 88% | 41,901 psi | 85% | 2776 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 44,454 psi | 90% | 2831 fps | 97.5% |
| Winchester 748 | <<locked>> | 84% | 42,380 psi | 86% | 2841 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,742 psi | 85% | 2808 fps | 97% |
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% | 39,349 psi | 80% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,270 psi | 63% | 2559 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 38,116 psi | 77% | 2720 fps | 98.4% |
| Accurate 4064 | <<locked>> | 80% | 29,602 psi | 60% | 2530 fps | 96.9% |
| ADI AR 2206H | <<locked>> | 82% | 38,653 psi | 78% | 2726 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,218 psi | 78% | 2694 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 36,825 psi | 75% | 2707 fps | 100% |
| Alliant Reloder- TS 15.5 | 41.9 gr | 86% | 36,216 psi | 73% | 2690 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,262 psi | 80% | 2759 fps | 95% |
| Alliant Reloder-17 | 47.8 gr | 92% | 38,580 psi | 78% | 2818 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 35,259 psi | 72% | 2680 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,393 psi | 82% | 2697 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,143 psi | 73% | 2694 fps | 96.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,914 psi | 81% | 2828 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 36,390 psi | 74% | 2680 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 37,231 psi | 76% | 2723 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,780 psi | 71% | 2687 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 51% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 37,695 psi | 76% | 2694 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 35,186 psi | 71% | 2697 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 39,088 psi | 79% | 2710 fps | 95% |
| IMR 4895 | <<locked>> | 84% | 37,594 psi | 76% | 2733 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 38,218 psi | 78% | 2694 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 80% | 34,156 psi | 69% | 2641 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 39,566 psi | 80% | 2677 fps | 95.7% |
| Lovex S062 | <<locked>> | 82% | 33,910 psi | 69% | 2605 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 35,186 psi | 71% | 2621 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 35,476 psi | 72% | 2648 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 38,551 psi | 78% | 2746 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 86% | 38,363 psi | 78% | 2759 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 82% | 39,871 psi | 81% | 2759 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,669 psi | 85% | 2743 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,353 psi | 51% | 1677 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 40,901 psi | 83% | 2864 fps | 95.4% |
| ReloadSwiss RS 60 | 43.6 gr | 84% | 31,401 psi | 64% | 2635 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,711 psi | 79% | 2687 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 80% | 33,547 psi | 68% | 2572 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 35,404 psi | 72% | 2677 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,156 psi | 69% | 2641 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 33,910 psi | 69% | 2605 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,755 psi | 81% | 2795 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 39,668 psi | 80% | 2746 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,275 psi | 76% | 2612 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,429 psi | 62% | 2461 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 40,886 psi | 83% | 2769 fps | 97.7% |
| Somchem S335 | <<locked>> | 80% | 36,492 psi | 74% | 2608 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 38,363 psi | 78% | 2707 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 36,593 psi | 74% | 2690 fps | 95.3% |
| Somchem S365 | <<locked>> | 96% | 33,982 psi | 69% | 2710 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 37,391 psi | 76% | 2618 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 32,430 psi | 66% | 2579 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 33,489 psi | 68% | 2579 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 32,692 psi | 66% | 2572 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 37,956 psi | 77% | 2684 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 80% | 32,198 psi | 65% | 2559 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 38,899 psi | 79% | 2713 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 37,014 psi | 75% | 2723 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 36,318 psi | 74% | 2687 fps | 95.3% |
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 58 powders for 7 x 57 R loaded with the .284 | 120gr | Barnes TSX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,834 fps to 2,959 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 120.0 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, Alliant Reloder-17, Alliant Reloder- TS 15.5 rank at the top here: for 7 x 57 R with the .284 | 120gr | Barnes TSX BT 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.