Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Frontier BTSP bullet and 64 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% | 43,627 psi | 88% | 2589 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,714 psi | 89% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,916 psi | 85% | 2657 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 82% | 42,380 psi | 86% | 2592 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 88% | 43,381 psi | 88% | 2595 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 44,512 psi | 90% | 2605 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 82% | 43,830 psi | 89% | 2598 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,888 psi | 89% | 2726 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,525 psi | 86% | 2612 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,265 psi | 88% | 2628 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,351 psi | 86% | 2671 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,438 psi | 86% | 2703 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,222 psi | 90% | 2644 fps | 97.2% |
| Bofors RP3 | <<locked>> | 88% | 42,192 psi | 86% | 2621 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,859 psi | 87% | 2625 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 88% | 43,613 psi | 88% | 2625 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 82% | 42,685 psi | 87% | 2605 fps | 98.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,903 psi | 89% | 2661 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 44,034 psi | 89% | 2680 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 71% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,787 psi | 89% | 2608 fps | 98.5% |
| IMR 3031 | <<locked>> | 82% | 41,829 psi | 85% | 2605 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,888 psi | 87% | 2579 fps | 97.5% |
| IMR 4831 | <<locked>> | 98% | 43,236 psi | 88% | 2664 fps | 97% |
| IMR 4895 | <<locked>> | 86% | 44,324 psi | 90% | 2661 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 82% | 44,512 psi | 90% | 2605 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 84% | 43,743 psi | 89% | 2625 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 43,004 psi | 87% | 2539 fps | 98% |
| Lovex S062 | <<locked>> | 86% | 42,583 psi | 86% | 2582 fps | 99% |
| Norma 201 | <<locked>> | 84% | 44,237 psi | 90% | 2602 fps | 99.2% |
| Norma 202 | <<locked>> | 84% | 44,425 psi | 90% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,540 psi | 86% | 2618 fps | 98% |
| Norma URP | <<locked>> | 96% | 42,134 psi | 85% | 2654 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 86% | 42,148 psi | 85% | 2631 fps | 97.7% |
| Ramshot TAC | <<locked>> | 82% | 44,541 psi | 90% | 2605 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,584 psi | 88% | 2625 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,099 psi | 71% | 1719 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,206 psi | 86% | 2674 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,293 psi | 86% | 2713 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,916 psi | 85% | 2677 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 86% | 44,527 psi | 90% | 2598 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 42,337 psi | 86% | 2615 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,743 psi | 89% | 2625 fps | 99.8% |
| Shooters World Precision | <<locked>> | 86% | 42,583 psi | 86% | 2582 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,700 psi | 89% | 2667 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,540 psi | 86% | 2575 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,526 psi | 88% | 2612 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,163 psi | 88% | 2513 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,018 psi | 87% | 2516 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,714 psi | 87% | 2516 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,119 psi | 85% | 2575 fps | 97.7% |
| Somchem S355 | <<locked>> | 90% | 43,178 psi | 88% | 2618 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,004 psi | 87% | 2713 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 43,279 psi | 88% | 2510 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,816 psi | 89% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 41,989 psi | 85% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 44,135 psi | 90% | 2605 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 96% | 44,338 psi | 90% | 2657 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 82% | 44,483 psi | 90% | 2598 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 86% | 43,018 psi | 87% | 2582 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 43,598 psi | 88% | 2661 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,235 psi | 86% | 2592 fps | 98.3% |
| Winchester 748 | <<locked>> | 82% | 43,714 psi | 89% | 2644 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,004 psi | 87% | 2618 fps | 98.5% |
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% | 35,955 psi | 73% | 2451 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,982 psi | 69% | 2431 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 39,189 psi | 79% | 2602 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 39,842 psi | 81% | 2543 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 36,100 psi | 73% | 2444 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,887 psi | 85% | 2556 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 40,959 psi | 83% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 38,348 psi | 78% | 2602 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,127 psi | 67% | 2411 fps | 96.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,737 psi | 72% | 2470 fps | 95.4% |
| Alliant Reloder-16 | 42.8 gr | 94% | 39,885 psi | 81% | 2615 fps | 95.9% |
| Alliant Reloder-17 | 41.2 gr | 84% | 32,663 psi | 66% | 2470 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,667 psi | 78% | 2533 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 32,460 psi | 66% | 2411 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,016 psi | 81% | 2569 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 40,683 psi | 83% | 2569 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 40,176 psi | 81% | 2552 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,184 psi | 65% | 2408 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,853 psi | 73% | 2513 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 53% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,435 psi | 78% | 2503 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 39,146 psi | 79% | 2556 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,578 psi | 72% | 2428 fps | 95.4% |
| IMR 4831 | <<locked>> | 94% | 37,840 psi | 77% | 2556 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,579 psi | 74% | 2503 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,887 psi | 85% | 2556 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 38,305 psi | 78% | 2520 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 40,219 psi | 82% | 2484 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 35,157 psi | 71% | 2431 fps | 97.3% |
| Norma 201 | <<locked>> | 80% | 39,117 psi | 79% | 2500 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 39,204 psi | 80% | 2516 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 35,128 psi | 71% | 2461 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 39,610 psi | 80% | 2602 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,418 psi | 70% | 2464 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 41,727 psi | 85% | 2549 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,785 psi | 83% | 2569 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,063 psi | 53% | 1535 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,854 psi | 75% | 2559 fps | 95.7% |
| ReloadSwiss RS 60 | 39.2 gr | 80% | 30,458 psi | 62% | 2421 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,160 psi | 79% | 2621 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 37,043 psi | 75% | 2451 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 32,561 psi | 66% | 2405 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,305 psi | 78% | 2520 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 35,157 psi | 71% | 2431 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,649 psi | 68% | 2451 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,726 psi | 81% | 2520 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,319 psi | 78% | 2510 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,480 psi | 82% | 2464 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,359 psi | 68% | 2333 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 40,248 psi | 82% | 2470 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,378 psi | 80% | 2523 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 31,662 psi | 64% | 2365 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 29,327 psi | 59% | 2392 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 40,640 psi | 82% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,042 psi | 73% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,043 psi | 75% | 2451 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 29,979 psi | 61% | 2306 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 39,189 psi | 79% | 2556 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 41,800 psi | 85% | 2552 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 35,592 psi | 72% | 2438 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 41,002 psi | 83% | 2612 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,605 psi | 66% | 2379 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 40,785 psi | 83% | 2589 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,492 psi | 76% | 2510 fps | 97.2% |
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 64 powders for 7 x 57 R loaded with the .284 | 140gr | Frontier BTSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,726 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 64 of the 64 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 1:9.0 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 | Frontier BTSP 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.