Load Specifications
Load data in caliber 7 x 57 R with .284 | 128gr | IBEX TRD bullet and 52 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 SNPE Vectan SP 11.
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 2495 | <<locked>> | 84% | 43,004 psi | 87% | 2687 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,134 psi | 87% | 2726 fps | 99.9% |
| Accurate 4350 | <<locked>> | 96% | 43,555 psi | 88% | 2795 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 82% | 43,468 psi | 88% | 2723 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 88% | 44,295 psi | 90% | 2723 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,047 psi | 85% | 2795 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,859 psi | 89% | 2753 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 44,382 psi | 90% | 2762 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 43,381 psi | 88% | 2802 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 43,352 psi | 88% | 2831 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,409 psi | 86% | 2720 fps | 96% |
| Bofors RP3 | <<locked>> | 88% | 43,729 psi | 89% | 2759 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 44,208 psi | 90% | 2762 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 82% | 43,772 psi | 89% | 2736 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,322 psi | 86% | 2740 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,308 psi | 86% | 2759 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,186 psi | 71% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,047 psi | 85% | 2687 fps | 97.6% |
| IMR 3031 | <<locked>> | 82% | 43,004 psi | 87% | 2746 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,961 psi | 89% | 2710 fps | 97.1% |
| IMR 4831 | <<locked>> | 98% | 44,498 psi | 90% | 2795 fps | 96.5% |
| IMR 4895 | <<locked>> | 84% | 42,685 psi | 87% | 2743 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 82% | 42,554 psi | 86% | 2713 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 43,976 psi | 89% | 2667 fps | 97.6% |
| Lovex S062 | <<locked>> | 86% | 44,019 psi | 89% | 2720 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 43,134 psi | 87% | 2687 fps | 98.5% |
| Norma 202 | <<locked>> | 82% | 42,888 psi | 87% | 2697 fps | 99.8% |
| Norma 203B | <<locked>> | 86% | 43,685 psi | 89% | 2753 fps | 97.5% |
| Norma URP | <<locked>> | 96% | 43,497 psi | 88% | 2789 fps | 96% |
| Ramshot Big Game | <<locked>> | 86% | 43,076 psi | 87% | 2762 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,563 psi | 72% | 1818 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 43,453 psi | 88% | 2812 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 43,352 psi | 88% | 2848 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 43,366 psi | 88% | 2684 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 90% | 43,845 psi | 89% | 2753 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,554 psi | 86% | 2713 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 44,019 psi | 89% | 2720 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,090 psi | 85% | 2746 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,061 psi | 85% | 2694 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 44,469 psi | 90% | 2648 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,845 psi | 89% | 2644 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 44,019 psi | 89% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 43,236 psi | 88% | 2707 fps | 97.3% |
| Somchem S355 | <<locked>> | 90% | 44,556 psi | 90% | 2756 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,135 psi | 90% | 2848 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 44,469 psi | 90% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 42,424 psi | 86% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 43,178 psi | 88% | 2680 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 90% | 42,699 psi | 87% | 2690 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 86% | 44,295 psi | 90% | 2717 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 43,395 psi | 88% | 2720 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 44,135 psi | 90% | 2753 fps | 98.1% |
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 2495 | <<locked>> | 80% | 38,043 psi | 77% | 2592 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,940 psi | 73% | 2575 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 40,683 psi | 83% | 2740 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 41,089 psi | 83% | 2674 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 39,334 psi | 80% | 2621 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 39,508 psi | 80% | 2736 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,301 psi | 70% | 2539 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 39,175 psi | 79% | 2654 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,814 psi | 83% | 2740 fps | 95.2% |
| Alliant Reloder-17 | 44.2 gr | 86% | 36,042 psi | 73% | 2657 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,610 psi | 80% | 2661 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 34,026 psi | 69% | 2546 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,263 psi | 84% | 2703 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 80% | 41,365 psi | 84% | 2687 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 35,505 psi | 72% | 2585 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,057 psi | 75% | 2644 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 53% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,465 psi | 80% | 2631 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 40,234 psi | 82% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 39,001 psi | 79% | 2605 fps | 95.7% |
| IMR 4831 | <<locked>> | 96% | 41,756 psi | 85% | 2743 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,840 psi | 77% | 2635 fps | 96% |
| Lovex D073.6 | <<locked>> | 80% | 39,929 psi | 81% | 2661 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 41,365 psi | 84% | 2615 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 36,666 psi | 74% | 2562 fps | 97% |
| Norma 201 | <<locked>> | 80% | 40,509 psi | 82% | 2635 fps | 98% |
| Norma 202 | <<locked>> | 80% | 40,306 psi | 82% | 2644 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 36,405 psi | 74% | 2592 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 40,843 psi | 83% | 2733 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 38,029 psi | 77% | 2651 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 54% | 1631 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,898 psi | 77% | 2690 fps | 95.1% |
| ReloadSwiss RS 60 | 41.1 gr | 80% | 31,705 psi | 64% | 2549 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 38,754 psi | 79% | 2589 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 34,171 psi | 69% | 2539 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,929 psi | 81% | 2661 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 36,666 psi | 74% | 2562 fps | 97% |
| SNPE Vectan SP 11 | 42.5 gr | 84% | 37,246 psi | 76% | 2638 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,291 psi | 80% | 2635 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,626 psi | 84% | 2595 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,505 psi | 70% | 2457 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 41,423 psi | 84% | 2602 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 40,422 psi | 82% | 2648 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 35,114 psi | 71% | 2549 fps | 95.5% |
| Somchem S365 | <<locked>> | 90% | 32,503 psi | 66% | 2572 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 41,669 psi | 85% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,405 psi | 76% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,043 psi | 77% | 2579 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 31,183 psi | 63% | 2431 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,796 psi | 75% | 2566 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 36,085 psi | 73% | 2559 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,696 psi | 78% | 2641 fps | 96.8% |
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 52 powders for 7 x 57 R loaded with the .284 | 128gr | IBEX TRD. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,778 fps to 2,848 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 128.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, SNPE Vectan SP 11 rank at the top here: for 7 x 57 R with the .284 | 128gr | IBEX TRD 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.