Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Barnes TTSX BT bullet and 65 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-16.
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% | 41,974 psi | 85% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 44,077 psi | 89% | 2628 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 42,163 psi | 86% | 2608 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 43,787 psi | 89% | 2700 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 84% | 44,338 psi | 90% | 2638 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 88% | 42,482 psi | 86% | 2585 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,598 psi | 88% | 2598 fps | 99% |
| Alliant AR-Comp | <<locked>> | 82% | 43,120 psi | 87% | 2595 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,960 psi | 87% | 2713 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,469 psi | 90% | 2657 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,235 psi | 86% | 2618 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,990 psi | 89% | 2710 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,324 psi | 90% | 2746 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,526 psi | 88% | 2641 fps | 97.1% |
| Bofors RP3 | <<locked>> | 90% | 43,932 psi | 89% | 2657 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,756 psi | 85% | 2608 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 88% | 42,438 psi | 86% | 2612 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 82% | 41,698 psi | 85% | 2592 fps | 98.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,120 psi | 87% | 2654 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,033 psi | 87% | 2667 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,534 psi | 70% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,873 psi | 87% | 2598 fps | 98.4% |
| IMR 3031 | <<locked>> | 84% | 43,627 psi | 88% | 2644 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 41,945 psi | 85% | 2569 fps | 97.3% |
| IMR 4831 | <<locked>> | 98% | 42,047 psi | 85% | 2648 fps | 96.7% |
| IMR 4895 | <<locked>> | 86% | 43,265 psi | 88% | 2651 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 82% | 43,598 psi | 88% | 2598 fps | 99% |
| Lovex D073.6 | <<locked>> | 84% | 42,830 psi | 87% | 2615 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 42,163 psi | 86% | 2530 fps | 97.9% |
| Lovex S062 | <<locked>> | 88% | 44,135 psi | 90% | 2621 fps | 99.2% |
| Norma 201 | <<locked>> | 84% | 43,076 psi | 87% | 2589 fps | 99% |
| Norma 202 | <<locked>> | 84% | 43,381 psi | 88% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 88% | 44,193 psi | 90% | 2657 fps | 98.3% |
| Norma URP | <<locked>> | 98% | 44,063 psi | 89% | 2697 fps | 97% |
| Ramshot Big Game | <<locked>> | 88% | 44,034 psi | 89% | 2674 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,917 psi | 87% | 2618 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,809 psi | 71% | 1719 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,222 psi | 90% | 2720 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 44,251 psi | 90% | 2759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,729 psi | 89% | 2720 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 82% | 44,193 psi | 90% | 2585 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 86% | 43,700 psi | 89% | 2592 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 92% | 44,193 psi | 90% | 2657 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,830 psi | 87% | 2615 fps | 99.8% |
| Shooters World Precision | <<locked>> | 88% | 44,135 psi | 90% | 2621 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,975 psi | 87% | 2661 fps | 98% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,382 psi | 90% | 2618 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,873 psi | 87% | 2608 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,221 psi | 86% | 2503 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,105 psi | 85% | 2510 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,324 psi | 90% | 2552 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 44,382 psi | 90% | 2625 fps | 98.2% |
| Somchem S355 | <<locked>> | 90% | 42,322 psi | 86% | 2608 fps | 98.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,858 psi | 85% | 2700 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 82% | 42,409 psi | 86% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,699 psi | 87% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,961 psi | 89% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 43,308 psi | 88% | 2598 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 96% | 43,584 psi | 88% | 2651 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 82% | 43,511 psi | 88% | 2592 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 86% | 42,264 psi | 86% | 2575 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 42,743 psi | 87% | 2651 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,338 psi | 90% | 2638 fps | 98.8% |
| Winchester 748 | <<locked>> | 82% | 42,728 psi | 87% | 2635 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,974 psi | 85% | 2608 fps | 98.3% |
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% | 34,389 psi | 70% | 2428 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,075 psi | 83% | 2572 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 32,532 psi | 66% | 2411 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 38,174 psi | 77% | 2589 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 38,899 psi | 79% | 2530 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 35,259 psi | 72% | 2431 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,959 psi | 83% | 2546 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 40,277 psi | 82% | 2549 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,434 psi | 76% | 2589 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,155 psi | 65% | 2398 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,722 psi | 70% | 2457 fps | 95.1% |
| Alliant Reloder-16 | 43 gr | 94% | 38,957 psi | 79% | 2602 fps | 95.6% |
| Alliant Reloder-17 | 42.4 gr | 86% | 33,953 psi | 69% | 2513 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,724 psi | 77% | 2523 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 31,285 psi | 63% | 2392 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,972 psi | 79% | 2556 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 39,856 psi | 81% | 2559 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 39,175 psi | 79% | 2543 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 33,243 psi | 67% | 2441 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,128 psi | 71% | 2503 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,744 psi | 52% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,855 psi | 77% | 2497 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 38,145 psi | 77% | 2546 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,693 psi | 70% | 2415 fps | 95.1% |
| IMR 4831 | <<locked>> | 94% | 36,956 psi | 75% | 2543 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 35,534 psi | 72% | 2487 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 80% | 40,959 psi | 83% | 2546 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 80% | 37,072 psi | 75% | 2507 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 39,682 psi | 80% | 2480 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 34,345 psi | 70% | 2421 fps | 97.1% |
| Norma 201 | <<locked>> | 80% | 38,014 psi | 77% | 2487 fps | 98.1% |
| Norma 202 | <<locked>> | 80% | 38,218 psi | 78% | 2503 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 34,127 psi | 69% | 2448 fps | 95.5% |
| Norma URP | <<locked>> | 94% | 38,798 psi | 79% | 2592 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 82% | 35,868 psi | 73% | 2507 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,089 psi | 81% | 2562 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,817 psi | 52% | 1535 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,839 psi | 73% | 2546 fps | 95.4% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 29,515 psi | 60% | 2402 fps | 96.3% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,218 psi | 78% | 2608 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 41,553 psi | 84% | 2536 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 35,940 psi | 73% | 2434 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 31,430 psi | 64% | 2385 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,072 psi | 75% | 2507 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 34,345 psi | 70% | 2421 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,230 psi | 71% | 2497 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,394 psi | 84% | 2562 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,405 psi | 76% | 2497 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,566 psi | 80% | 2457 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,518 psi | 66% | 2323 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 39,218 psi | 80% | 2461 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,421 psi | 78% | 2510 fps | 96.8% |
| Somchem S355 | <<locked>> | 82% | 32,634 psi | 66% | 2402 fps | 95.5% |
| Somchem S365 | <<locked>> | 90% | 30,327 psi | 62% | 2428 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 80% | 39,798 psi | 81% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,012 psi | 71% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,100 psi | 73% | 2441 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 28,993 psi | 59% | 2293 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 92% | 38,174 psi | 77% | 2543 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,828 psi | 83% | 2539 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 80% | 34,621 psi | 70% | 2425 fps | 99% |
| Vihtavuori N550 | <<locked>> | 94% | 39,871 psi | 81% | 2595 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 34,011 psi | 69% | 2421 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 39,798 psi | 81% | 2575 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,506 psi | 74% | 2497 fps | 97% |
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 65 powders for 7 x 57 R loaded with the .284 | 140gr | Barnes TTSX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,759 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 65 of the 65 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 140.0 gr projectile in 0.284" calls for a 1:10.0 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-16 rank at the top here: for 7 x 57 R with the .284 | 140gr | Barnes TTSX 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.