Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Barnes TSX BT bullet and 60 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 ReloadSwiss RS 62.
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>> | 86% | 43,526 psi | 88% | 2605 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,932 psi | 89% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,728 psi | 87% | 2687 fps | 97% |
| ADI AR 2206H | <<locked>> | 82% | 42,699 psi | 87% | 2618 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 88% | 43,714 psi | 89% | 2618 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 82% | 44,527 psi | 90% | 2625 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,338 psi | 90% | 2756 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,076 psi | 87% | 2641 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,540 psi | 88% | 2654 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,612 psi | 86% | 2697 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,873 psi | 87% | 2733 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,843 psi | 85% | 2618 fps | 96.9% |
| Bofors RP3 | <<locked>> | 88% | 42,801 psi | 87% | 2648 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,337 psi | 88% | 2648 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 88% | 43,932 psi | 89% | 2651 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 82% | 43,091 psi | 87% | 2631 fps | 98.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,425 psi | 90% | 2690 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 44,570 psi | 90% | 2710 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 71% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 44,193 psi | 90% | 2635 fps | 98.8% |
| IMR 3031 | <<locked>> | 82% | 42,148 psi | 85% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,221 psi | 88% | 2605 fps | 97.8% |
| IMR 4831 | <<locked>> | 98% | 43,787 psi | 89% | 2690 fps | 97.4% |
| IMR 4895 | <<locked>> | 86% | 44,585 psi | 90% | 2684 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 84% | 44,222 psi | 90% | 2651 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 43,178 psi | 88% | 2562 fps | 98.2% |
| Lovex S062 | <<locked>> | 86% | 42,801 psi | 87% | 2605 fps | 99.1% |
| Norma 201 | <<locked>> | 84% | 44,469 psi | 90% | 2625 fps | 99.3% |
| Norma 202 | <<locked>> | 82% | 41,829 psi | 85% | 2582 fps | 99.9% |
| Norma 203B | <<locked>> | 86% | 42,815 psi | 87% | 2644 fps | 98.2% |
| Norma URP | <<locked>> | 96% | 43,018 psi | 87% | 2690 fps | 97% |
| Ramshot Big Game | <<locked>> | 86% | 42,540 psi | 86% | 2657 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 82% | 44,150 psi | 90% | 2651 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,041 psi | 71% | 1736 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,873 psi | 87% | 2703 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,844 psi | 87% | 2743 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,598 psi | 86% | 2707 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 42,134 psi | 85% | 2572 fps | 99% |
| Rottweil R 903 | <<locked>> | 90% | 42,699 psi | 87% | 2638 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 44,222 psi | 90% | 2651 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 42,801 psi | 87% | 2605 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 44,425 psi | 90% | 2700 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,873 psi | 87% | 2602 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 44,063 psi | 89% | 2641 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,381 psi | 88% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,395 psi | 88% | 2543 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,757 psi | 87% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,627 psi | 86% | 2602 fps | 98% |
| Somchem S355 | <<locked>> | 90% | 43,569 psi | 88% | 2644 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,424 psi | 88% | 2743 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 82% | 43,598 psi | 88% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 44,251 psi | 90% | 2608 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,366 psi | 86% | 2569 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 44,512 psi | 90% | 2631 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 94% | 42,293 psi | 86% | 2638 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 86% | 43,453 psi | 88% | 2605 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 44,338 psi | 90% | 2694 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 43,004 psi | 87% | 2625 fps | 98.7% |
| Winchester 748 | <<locked>> | 82% | 44,150 psi | 90% | 2667 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,497 psi | 88% | 2648 fps | 98.8% |
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% | 35,607 psi | 72% | 2461 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,736 psi | 68% | 2448 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 36,854 psi | 75% | 2569 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 39,958 psi | 81% | 2562 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 36,245 psi | 74% | 2467 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 41,698 psi | 85% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 38,769 psi | 79% | 2635 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,214 psi | 67% | 2431 fps | 96.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,766 psi | 73% | 2490 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,855 psi | 77% | 2592 fps | 95.5% |
| Alliant Reloder-17 | 42.6 gr | 84% | 32,634 psi | 66% | 2490 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,146 psi | 79% | 2562 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 32,314 psi | 66% | 2425 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,248 psi | 82% | 2589 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 38,363 psi | 78% | 2539 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,248 psi | 82% | 2572 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,184 psi | 65% | 2428 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,114 psi | 73% | 2536 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 52% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,870 psi | 79% | 2530 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 39,479 psi | 80% | 2579 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,723 psi | 72% | 2451 fps | 95.8% |
| IMR 4831 | <<locked>> | 94% | 38,363 psi | 78% | 2582 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 36,593 psi | 74% | 2523 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 80% | 38,493 psi | 78% | 2543 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 40,698 psi | 83% | 2513 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 35,404 psi | 72% | 2454 fps | 97.6% |
| Norma 201 | <<locked>> | 80% | 39,102 psi | 79% | 2520 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 39,349 psi | 80% | 2536 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 35,143 psi | 71% | 2480 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 37,492 psi | 76% | 2575 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,548 psi | 70% | 2487 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,307 psi | 84% | 2598 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 53% | 1552 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,173 psi | 75% | 2585 fps | 96.1% |
| ReloadSwiss RS 60 | 40.6 gr | 80% | 30,487 psi | 62% | 2444 fps | 97.1% |
| ReloadSwiss RS 62 | 47.7 gr | 94% | 39,726 psi | 81% | 2651 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 37,028 psi | 75% | 2470 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 30,429 psi | 62% | 2369 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,493 psi | 78% | 2543 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 35,404 psi | 72% | 2454 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,982 psi | 69% | 2477 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,842 psi | 81% | 2543 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,638 psi | 78% | 2533 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,727 psi | 83% | 2487 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,518 psi | 68% | 2352 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 40,277 psi | 82% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,856 psi | 81% | 2549 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 31,589 psi | 64% | 2385 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 29,399 psi | 60% | 2411 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 40,973 psi | 83% | 2487 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,230 psi | 73% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,188 psi | 75% | 2470 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,950 psi | 61% | 2323 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 90% | 37,144 psi | 75% | 2530 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 35,795 psi | 73% | 2457 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 38,740 psi | 79% | 2582 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,822 psi | 67% | 2405 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 41,191 psi | 84% | 2615 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,739 psi | 77% | 2533 fps | 97.5% |
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 60 powders for 7 x 57 R loaded with the .284 | 140gr | Barnes TSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,756 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 60 of the 60 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 140.0 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, 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 140gr | 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.