Load Specifications
Load data in caliber 7 x 57 with .284 | 128gr | IBEX TRD bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 84% | 51,097 psi | 90% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 49,385 psi | 87% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,676 psi | 90% | 2858 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 49,284 psi | 87% | 2841 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,778 psi | 90% | 2936 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 86% | 49,763 psi | 88% | 2854 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 92% | 50,372 psi | 89% | 2848 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,950 psi | 87% | 2812 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 84% | 48,689 psi | 86% | 2808 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,675 psi | 86% | 2946 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,038 psi | 88% | 2874 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,821 psi | 90% | 2894 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,443 psi | 87% | 2933 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,038 psi | 88% | 2976 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,081 psi | 87% | 2861 fps | 97.7% |
| Bofors RP3 | <<locked>> | 92% | 50,618 psi | 89% | 2890 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,068 psi | 90% | 2805 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 86% | 51,068 psi | 90% | 2894 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,776 psi | 86% | 2920 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 90% | 48,617 psi | 86% | 2841 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 50,256 psi | 89% | 2871 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,513 psi | 80% | 2815 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,457 psi | 86% | 2887 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 62% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,039 psi | 90% | 2867 fps | 99.2% |
| IMR 3031 | <<locked>> | 86% | 49,313 psi | 87% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,198 psi | 89% | 2835 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,283 psi | 85% | 2874 fps | 97.5% |
| IMR 4895 | <<locked>> | 88% | 48,979 psi | 87% | 2874 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 84% | 48,950 psi | 87% | 2812 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 86% | 49,008 psi | 87% | 2841 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,763 psi | 88% | 2789 fps | 98.7% |
| Lovex S062 | <<locked>> | 90% | 50,096 psi | 89% | 2841 fps | 99.5% |
| Lovex S065 | <<locked>> | 96% | 49,066 psi | 87% | 2818 fps | 96% |
| Norma 201 | <<locked>> | 86% | 49,182 psi | 87% | 2812 fps | 99.4% |
| Norma 202 | <<locked>> | 86% | 49,066 psi | 87% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,067 psi | 89% | 2884 fps | 98.8% |
| Norma URPᴾ | <<locked>> | 100% | 49,864 psi | 88% | 2920 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 90% | 49,850 psi | 88% | 2897 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 49,240 psi | 87% | 2815 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,457 psi | 86% | 2838 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,995 psi | 88% | 2812 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 63% | 1831 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,169 psi | 89% | 2949 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,096 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,212 psi | 89% | 2953 fps | 97.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,618 psi | 89% | 2966 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 84% | 50,575 psi | 89% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 49,458 psi | 87% | 2808 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 94% | 50,488 psi | 89% | 2881 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,066 psi | 87% | 2818 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 86% | 49,008 psi | 87% | 2841 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,096 psi | 89% | 2841 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,486 psi | 86% | 2881 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,633 psi | 90% | 2844 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,097 psi | 90% | 2874 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,633 psi | 90% | 2762 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,140 psi | 89% | 2759 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 49,806 psi | 88% | 2844 fps | 99.6% |
| Somchem S335 | <<locked>> | 86% | 50,053 psi | 88% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,154 psi | 89% | 2841 fps | 98.6% |
| Somchem S355 | <<locked>> | 94% | 51,053 psi | 90% | 2884 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,802 psi | 79% | 2874 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 82% | 50,502 psi | 89% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,618 psi | 89% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,472 psi | 86% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,371 psi | 87% | 2795 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,037 psi | 87% | 2812 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 98% | 49,327 psi | 87% | 2867 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 84% | 49,414 psi | 87% | 2815 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 90% | 50,923 psi | 90% | 2841 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,385 psi | 86% | 2871 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,082 psi | 89% | 2851 fps | 99.2% |
| Winchester 748 | <<locked>> | 84% | 48,646 psi | 86% | 2858 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,879 psi | 90% | 2884 fps | 99.2% |
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% | 45,382 psi | 80% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,566 psi | 68% | 2612 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,454 psi | 79% | 2749 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 36,405 psi | 64% | 2595 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 41,553 psi | 73% | 2766 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 41,495 psi | 73% | 2694 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 37,565 psi | 66% | 2592 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,366 psi | 77% | 2707 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 42,859 psi | 76% | 2713 fps | 100% |
| Alliant Power Pro 2000-MR | 43.6 gr | 82% | 40,001 psi | 71% | 2759 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,751 psi | 61% | 2562 fps | 96% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,420 psi | 66% | 2625 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,495 psi | 73% | 2769 fps | 95.6% |
| Alliant Reloder-17 | 45 gr | 86% | 36,477 psi | 64% | 2680 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,176 psi | 71% | 2684 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 34,418 psi | 61% | 2562 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,281 psi | 80% | 2703 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,901 psi | 74% | 2726 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,556 psi | 81% | 2858 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 86% | 42,670 psi | 75% | 2726 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 41,829 psi | 74% | 2707 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 35,911 psi | 63% | 2608 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,652 psi | 67% | 2667 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 46% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,132 psi | 71% | 2657 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 41,017 psi | 73% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,028 psi | 65% | 2572 fps | 95.1% |
| IMR 4831 | <<locked>> | 94% | 39,885 psi | 71% | 2713 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,218 psi | 68% | 2654 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 80% | 43,366 psi | 77% | 2707 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 40,364 psi | 71% | 2680 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 41,771 psi | 74% | 2635 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 37,130 psi | 66% | 2585 fps | 97.2% |
| Lovex S065 | <<locked>> | 94% | 46,485 psi | 82% | 2769 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 40,901 psi | 72% | 2654 fps | 98.1% |
| Norma 202 | <<locked>> | 80% | 40,756 psi | 72% | 2664 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 36,840 psi | 65% | 2612 fps | 95.7% |
| Norma URP | <<locked>> | 94% | 41,568 psi | 73% | 2759 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,100 psi | 64% | 2615 fps | 95% |
| Ramshot TAC | <<locked>> | 82% | 46,122 psi | 82% | 2756 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,424 psi | 75% | 2723 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,833 psi | 83% | 2756 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 47% | 1637 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,537 psi | 68% | 2713 fps | 95.5% |
| ReloadSwiss RS 60 | 41.9 gr | 80% | 32,169 psi | 57% | 2575 fps | 96.6% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,089 psi | 73% | 2776 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,541 psi | 79% | 2841 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 45,078 psi | 80% | 2713 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 39,175 psi | 69% | 2608 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 34,751 psi | 61% | 2566 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 46,485 psi | 82% | 2769 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,364 psi | 71% | 2680 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 37,130 psi | 66% | 2585 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 37,753 psi | 67% | 2661 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,512 psi | 79% | 2733 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,929 psi | 71% | 2657 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,105 psi | 74% | 2615 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,940 psi | 62% | 2477 fps | 99.4% |
| Somchem S321 | <<locked>> | 80% | 46,615 psi | 82% | 2785 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 41,843 psi | 74% | 2621 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 40,959 psi | 72% | 2671 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 33,388 psi | 59% | 2516 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 31,198 psi | 55% | 2546 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 47,471 psi | 84% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,177 psi | 75% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,942 psi | 67% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,725 psi | 68% | 2602 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 31,763 psi | 56% | 2457 fps | 96% |
| Vihtavuori N160 | <<locked>> | 92% | 40,886 psi | 72% | 2707 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,337 psi | 77% | 2700 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,376 psi | 66% | 2589 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 42,757 psi | 76% | 2766 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,360 psi | 61% | 2526 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 42,612 psi | 75% | 2746 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,262 psi | 69% | 2664 fps | 97.1% |
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 75 powders for 7 x 57 loaded with the .284 | 128gr | IBEX TRD. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,788 fps to 2,989 fps. Accurate 4350 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, 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. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 x 57 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.