Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Peregrine VLR-4 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 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 88% | 44,599 psi | 90% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 43,903 psi | 89% | 2625 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 41,974 psi | 85% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 43,642 psi | 89% | 2694 fps | 97% |
| ADI AR 2206H | <<locked>> | 84% | 44,106 psi | 89% | 2631 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 88% | 42,322 psi | 86% | 2582 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,381 psi | 88% | 2592 fps | 99% |
| Alliant AR-Comp | <<locked>> | 82% | 42,859 psi | 87% | 2592 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,786 psi | 87% | 2707 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,280 psi | 90% | 2654 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,018 psi | 85% | 2612 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,874 psi | 89% | 2707 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,179 psi | 90% | 2743 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,062 psi | 87% | 2631 fps | 97% |
| Bofors RP3 | <<locked>> | 90% | 43,758 psi | 89% | 2654 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 84% | 44,614 psi | 90% | 2661 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 88% | 42,279 psi | 86% | 2605 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 44,498 psi | 90% | 2644 fps | 98.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,699 psi | 87% | 2644 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,830 psi | 87% | 2664 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,476 psi | 70% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,699 psi | 87% | 2595 fps | 98.3% |
| IMR 3031 | <<locked>> | 84% | 43,381 psi | 88% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 44,454 psi | 90% | 2615 fps | 97.9% |
| IMR 4831 | <<locked>> | 98% | 41,901 psi | 85% | 2644 fps | 96.6% |
| IMR 4895 | <<locked>> | 86% | 43,047 psi | 87% | 2644 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 82% | 43,381 psi | 88% | 2592 fps | 99% |
| Lovex D073.6 | <<locked>> | 84% | 42,308 psi | 86% | 2605 fps | 99.7% |
| Lovex S060 | <<locked>> | 84% | 44,599 psi | 90% | 2572 fps | 98.3% |
| Lovex S062 | <<locked>> | 88% | 43,961 psi | 89% | 2615 fps | 99.2% |
| Norma 201 | <<locked>> | 84% | 42,888 psi | 87% | 2582 fps | 99% |
| Norma 202 | <<locked>> | 84% | 43,178 psi | 88% | 2595 fps | 100% |
| Norma 203B | <<locked>> | 88% | 43,976 psi | 89% | 2654 fps | 98.3% |
| Norma URP | <<locked>> | 98% | 43,947 psi | 89% | 2694 fps | 97% |
| Ramshot Big Game | <<locked>> | 88% | 43,903 psi | 89% | 2671 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,438 psi | 86% | 2608 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,027 psi | 71% | 1722 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,048 psi | 89% | 2717 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 44,077 psi | 89% | 2753 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,598 psi | 88% | 2717 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 82% | 43,961 psi | 89% | 2579 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 86% | 43,163 psi | 88% | 2579 fps | 99% |
| Rottweil R 903 | <<locked>> | 92% | 43,656 psi | 89% | 2644 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,308 psi | 86% | 2605 fps | 99.7% |
| Shooters World Precision | <<locked>> | 88% | 43,961 psi | 89% | 2615 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,525 psi | 86% | 2651 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,222 psi | 90% | 2615 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,395 psi | 86% | 2598 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 41,989 psi | 85% | 2500 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 41,901 psi | 85% | 2503 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,135 psi | 90% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 43,903 psi | 89% | 2615 fps | 98.1% |
| Somchem S355 | <<locked>> | 90% | 41,814 psi | 85% | 2598 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,713 psi | 85% | 2697 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 82% | 42,206 psi | 86% | 2500 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,482 psi | 86% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,787 psi | 89% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 42,873 psi | 87% | 2589 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 96% | 43,468 psi | 88% | 2648 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 82% | 43,323 psi | 88% | 2585 fps | 99% |
| Vihtavuori N540 | <<locked>> | 86% | 42,090 psi | 85% | 2572 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 42,308 psi | 86% | 2641 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,309 psi | 90% | 2635 fps | 98.7% |
| Winchester 748 | <<locked>> | 82% | 42,540 psi | 86% | 2628 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,829 psi | 85% | 2602 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% | 34,142 psi | 69% | 2421 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,872 psi | 83% | 2569 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 32,329 psi | 66% | 2405 fps | 98.9% |
| Accurate 4350 | <<locked>> | 94% | 37,695 psi | 76% | 2579 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 38,696 psi | 78% | 2523 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 37,376 psi | 76% | 2477 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,756 psi | 83% | 2539 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 40,016 psi | 81% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,275 psi | 76% | 2585 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,966 psi | 65% | 2392 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,534 psi | 70% | 2451 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,798 psi | 79% | 2598 fps | 95.5% |
| Alliant Reloder-17 | 42.2 gr | 86% | 33,794 psi | 69% | 2510 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,550 psi | 76% | 2516 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 31,067 psi | 63% | 2385 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,740 psi | 79% | 2549 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 86% | 39,682 psi | 80% | 2556 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 38,972 psi | 79% | 2536 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 33,083 psi | 67% | 2438 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,737 psi | 70% | 2493 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 52% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,666 psi | 76% | 2493 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 37,913 psi | 77% | 2539 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,490 psi | 70% | 2408 fps | 95% |
| IMR 4831 | <<locked>> | 94% | 36,535 psi | 74% | 2533 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 35,346 psi | 72% | 2484 fps | 96% |
| IMR 8208 XBR | <<locked>> | 80% | 40,756 psi | 83% | 2539 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 36,883 psi | 75% | 2500 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 39,479 psi | 80% | 2477 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 34,142 psi | 69% | 2415 fps | 97% |
| Norma 201 | <<locked>> | 80% | 37,797 psi | 77% | 2480 fps | 98% |
| Norma 202 | <<locked>> | 80% | 38,014 psi | 77% | 2500 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 33,924 psi | 69% | 2441 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 38,421 psi | 78% | 2582 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 82% | 35,708 psi | 72% | 2500 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,639 psi | 80% | 2552 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 52% | 1532 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,636 psi | 72% | 2539 fps | 95.3% |
| ReloadSwiss RS 60 | 39.2 gr | 80% | 29,385 psi | 60% | 2398 fps | 96.2% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,611 psi | 82% | 2654 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,307 psi | 84% | 2530 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 35,723 psi | 72% | 2428 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 31,241 psi | 63% | 2382 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,883 psi | 75% | 2500 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 34,142 psi | 69% | 2415 fps | 97% |
| SNPE Vectan SP 11 | 40.5 gr | 84% | 34,853 psi | 71% | 2487 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,249 psi | 84% | 2556 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,202 psi | 75% | 2490 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,639 psi | 80% | 2454 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,547 psi | 66% | 2320 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 39,015 psi | 79% | 2457 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,218 psi | 78% | 2503 fps | 96.7% |
| Somchem S355 | <<locked>> | 82% | 32,445 psi | 66% | 2395 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 29,979 psi | 61% | 2418 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 39,842 psi | 81% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,027 psi | 71% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,897 psi | 73% | 2434 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 28,819 psi | 58% | 2287 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 92% | 38,029 psi | 77% | 2536 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 40,625 psi | 82% | 2536 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 34,447 psi | 70% | 2418 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 39,726 psi | 81% | 2592 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,939 psi | 69% | 2418 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 39,595 psi | 80% | 2572 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,347 psi | 74% | 2490 fps | 96.9% |
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 87 powders for 7 x 57 R loaded with the .284 | 140gr | Peregrine VLR-4. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,753 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 66–90 %, 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. Alliant Reloder-23, Alliant Reloder-26, 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. ReloadSwiss RS 60, Alliant Reloder-17, SNPE Vectan SP 11 rank at the top here: for 7 x 57 R with the .284 | 140gr | Peregrine VLR-4 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.