Load Specifications
Load data in caliber 7 x 57 R with .284 | 128gr | Brenneke TUG Nature Plus bullet and 63 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 Ramshot Big Game.
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% | 43,801 psi | 89% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 43,700 psi | 89% | 2733 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 43,018 psi | 87% | 2740 fps | 99.6% |
| Accurate 4064 | <<locked>> | 90% | 43,990 psi | 89% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 42,685 psi | 87% | 2802 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 43,192 psi | 88% | 2743 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 90% | 44,179 psi | 90% | 2743 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,670 psi | 87% | 2707 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 82% | 41,843 psi | 85% | 2713 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 41,945 psi | 85% | 2818 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 43,308 psi | 88% | 2766 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 44,077 psi | 89% | 2782 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,033 psi | 87% | 2815 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,395 psi | 88% | 2854 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,279 psi | 86% | 2740 fps | 96% |
| Bofors RP3 | <<locked>> | 90% | 42,830 psi | 87% | 2769 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 43,801 psi | 89% | 2779 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 90% | 44,396 psi | 90% | 2776 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 84% | 43,540 psi | 88% | 2759 fps | 98.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,989 psi | 85% | 2756 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,047 psi | 85% | 2779 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,447 psi | 70% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,134 psi | 85% | 2713 fps | 97.7% |
| IMR 3031 | <<locked>> | 84% | 42,583 psi | 86% | 2762 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 43,743 psi | 89% | 2730 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,034 psi | 89% | 2808 fps | 96.5% |
| IMR 4895 | <<locked>> | 86% | 42,250 psi | 86% | 2759 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 82% | 42,670 psi | 87% | 2707 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 84% | 41,684 psi | 85% | 2723 fps | 99.4% |
| Lovex S060 | <<locked>> | 84% | 43,947 psi | 89% | 2690 fps | 97.6% |
| Lovex S062 | <<locked>> | 88% | 43,178 psi | 88% | 2733 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 42,134 psi | 85% | 2697 fps | 98.4% |
| Norma 202 | <<locked>> | 84% | 42,351 psi | 86% | 2713 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 43,323 psi | 88% | 2769 fps | 97.6% |
| Norma URP | <<locked>> | 98% | 43,178 psi | 88% | 2805 fps | 96% |
| Ramshot Big Game | <<locked>> | 88% | 43,134 psi | 87% | 2782 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 41,858 psi | 85% | 2723 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,635 psi | 70% | 1818 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 43,192 psi | 88% | 2831 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,410 psi | 88% | 2871 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 43,221 psi | 88% | 2700 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 42,656 psi | 87% | 2700 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 92% | 42,728 psi | 87% | 2759 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 41,684 psi | 85% | 2723 fps | 99.4% |
| Shooters World Precision | <<locked>> | 88% | 43,178 psi | 88% | 2733 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,843 psi | 85% | 2766 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,597 psi | 84% | 2710 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 43,961 psi | 89% | 2664 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 43,700 psi | 89% | 2664 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 43,410 psi | 88% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 43,105 psi | 87% | 2726 fps | 97.3% |
| Somchem S355 | <<locked>> | 92% | 43,743 psi | 89% | 2762 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,799 psi | 83% | 2802 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 84% | 44,106 psi | 89% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 44,396 psi | 90% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,786 psi | 87% | 2697 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 42,003 psi | 85% | 2700 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 82% | 42,511 psi | 86% | 2700 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 88% | 43,990 psi | 89% | 2736 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 98% | 44,353 psi | 90% | 2805 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,526 psi | 88% | 2743 fps | 98.1% |
| Winchester 748 | <<locked>> | 82% | 41,727 psi | 85% | 2743 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 86% | 43,947 psi | 89% | 2772 fps | 98.2% |
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 | 84% | 2635 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,388 psi | 68% | 2530 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,176 psi | 81% | 2684 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 31,575 psi | 64% | 2507 fps | 98.2% |
| Accurate 4350 | <<locked>> | 96% | 39,639 psi | 80% | 2740 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 37,869 psi | 77% | 2631 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 39,001 psi | 79% | 2635 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,929 psi | 81% | 2651 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 38,899 psi | 79% | 2661 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 39,276 psi | 80% | 2753 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,257 psi | 67% | 2543 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,595 psi | 78% | 2667 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,567 psi | 82% | 2759 fps | 95.3% |
| Alliant Reloder-17 | 45.5 gr | 88% | 35,418 psi | 72% | 2667 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,595 psi | 80% | 2684 fps | 95.2% |
| Bofors RP3 | <<locked>> | 82% | 32,460 psi | 66% | 2536 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,072 psi | 77% | 2661 fps | 98% |
| Hodgdon H380 | <<locked>> | 88% | 41,524 psi | 84% | 2717 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,116 psi | 77% | 2641 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,548 psi | 70% | 2589 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,214 psi | 69% | 2598 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,541 psi | 52% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,869 psi | 75% | 2598 fps | 96.2% |
| IMR 3031 | <<locked>> | 80% | 37,144 psi | 75% | 2654 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,522 psi | 78% | 2621 fps | 95.7% |
| IMR 4831 | <<locked>> | 98% | 41,089 psi | 83% | 2753 fps | 95.7% |
| IMR 4895 | <<locked>> | 82% | 36,941 psi | 75% | 2641 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 39,929 psi | 81% | 2651 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 36,085 psi | 73% | 2608 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 38,595 psi | 78% | 2582 fps | 96.3% |
| Lovex S062 | <<locked>> | 80% | 33,243 psi | 67% | 2513 fps | 96% |
| Norma 201 | <<locked>> | 80% | 37,115 psi | 75% | 2592 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 37,246 psi | 76% | 2608 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 35,447 psi | 72% | 2598 fps | 95.2% |
| Norma URP | <<locked>> | 96% | 40,364 psi | 82% | 2746 fps | 95.1% |
| Ramshot Big Game | 44.1 gr | 84% | 37,579 psi | 76% | 2664 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,972 psi | 79% | 2661 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,556 psi | 52% | 1624 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,362 psi | 76% | 2703 fps | 95.1% |
| ReloadSwiss RS 60 | 42.4 gr | 82% | 30,893 psi | 63% | 2552 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 40,422 psi | 82% | 2644 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 35,114 psi | 71% | 2536 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 86% | 34,940 psi | 71% | 2589 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,085 psi | 73% | 2608 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 33,243 psi | 67% | 2513 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,695 psi | 74% | 2651 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,506 psi | 74% | 2595 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,885 psi | 79% | 2566 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,836 psi | 65% | 2421 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 38,334 psi | 78% | 2569 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,521 psi | 76% | 2612 fps | 95.7% |
| Somchem S355 | <<locked>> | 84% | 33,924 psi | 69% | 2549 fps | 95.2% |
| Somchem S365 | <<locked>> | 92% | 31,444 psi | 64% | 2572 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 39,059 psi | 79% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,185 psi | 69% | 2539 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,172 psi | 71% | 2543 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 30,182 psi | 61% | 2434 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 39,726 psi | 81% | 2644 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 33,808 psi | 69% | 2523 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 96% | 41,495 psi | 84% | 2749 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,520 psi | 72% | 2569 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 38,986 psi | 79% | 2687 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,737 psi | 72% | 2598 fps | 96% |
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 63 powders for 7 x 57 R loaded with the .284 | 128gr | Brenneke TUG Nature Plus. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,778 fps to 2,871 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 63 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 128.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, IMR 4831 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, Ramshot Big Game rank at the top here: for 7 x 57 R with the .284 | 128gr | Brenneke TUG Nature Plus 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.