Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Peregrine VLR-4 bullet and 88 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.
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 2015 | <<locked>> | 84% | 49,806 psi | 88% | 2552 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 50,502 psi | 89% | 2608 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,734 psi | 88% | 2631 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 50,488 psi | 89% | 2651 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,937 psi | 88% | 2717 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 86% | 49,211 psi | 87% | 2638 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 92% | 50,183 psi | 89% | 2638 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,312 psi | 85% | 2595 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 48,457 psi | 86% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,283 psi | 85% | 2733 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,661 psi | 88% | 2657 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,125 psi | 89% | 2674 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,124 psi | 87% | 2726 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,734 psi | 88% | 2762 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,490 psi | 61% | 2457 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,501 psi | 86% | 2644 fps | 98.7% |
| Bofors RP3 | <<locked>> | 92% | 49,414 psi | 87% | 2664 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 50,459 psi | 89% | 2631 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,285 psi | 89% | 2582 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,357 psi | 89% | 2671 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,675 psi | 86% | 2707 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 92% | 50,937 psi | 90% | 2677 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 98% | 49,821 psi | 88% | 2713 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 49,661 psi | 88% | 2651 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,165 psi | 80% | 2608 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,240 psi | 85% | 2674 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,896 psi | 62% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,039 psi | 90% | 2654 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 48,965 psi | 87% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,632 psi | 88% | 2621 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,009 psi | 88% | 2598 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,545 psi | 88% | 2621 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,529 psi | 84% | 2661 fps | 98.5% |
| IMR 4895 | <<locked>> | 88% | 48,283 psi | 85% | 2654 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 48,312 psi | 85% | 2595 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 86% | 48,037 psi | 85% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,414 psi | 87% | 2575 fps | 99.4% |
| Lovex S062 | <<locked>> | 90% | 49,153 psi | 87% | 2621 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,472 psi | 86% | 2612 fps | 97.3% |
| Lovex S070 | <<locked>> | 98% | 48,921 psi | 86% | 2638 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 50,952 psi | 90% | 2635 fps | 100% |
| Norma 202 | <<locked>> | 86% | 48,254 psi | 85% | 2595 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,313 psi | 87% | 2661 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 49,676 psi | 88% | 2710 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 90% | 49,719 psi | 88% | 2687 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,704 psi | 86% | 2703 fps | 97% |
| Ramshot TAC | <<locked>> | 84% | 48,544 psi | 86% | 2602 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 51,140 psi | 90% | 2674 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,313 psi | 87% | 2595 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,215 psi | 62% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,211 psi | 85% | 2608 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,922 psi | 88% | 2730 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,574 psi | 88% | 2766 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,545 psi | 88% | 2736 fps | 98.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,270 psi | 89% | 2762 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 84% | 48,921 psi | 86% | 2575 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,182 psi | 85% | 2585 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 49,284 psi | 87% | 2657 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 96% | 50,459 psi | 89% | 2631 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,472 psi | 86% | 2612 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,037 psi | 85% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,153 psi | 87% | 2621 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 48,921 psi | 86% | 2638 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,138 psi | 85% | 2671 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,893 psi | 88% | 2631 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,618 psi | 89% | 2657 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,835 psi | 88% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,588 psi | 88% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,341 psi | 85% | 2559 fps | 95.8% |
| Somchem S321 | <<locked>> | 82% | 49,023 psi | 87% | 2625 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 49,037 psi | 87% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,501 psi | 88% | 2625 fps | 99.4% |
| Somchem S355 | <<locked>> | 94% | 49,966 psi | 88% | 2657 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,005 psi | 78% | 2657 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 49,690 psi | 88% | 2510 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,067 psi | 89% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,024 psi | 90% | 2608 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,950 psi | 87% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,225 psi | 85% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,037 psi | 87% | 2661 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 48,776 psi | 86% | 2595 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 49,995 psi | 88% | 2615 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,184 psi | 90% | 2713 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,840 psi | 65% | 2530 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,545 psi | 88% | 2644 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 48,138 psi | 85% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,183 psi | 89% | 2720 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,212 psi | 89% | 2664 fps | 99.8% |
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 2015 | <<locked>> | 80% | 44,179 psi | 78% | 2467 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,230 psi | 64% | 2382 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,134 psi | 76% | 2526 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,272 psi | 61% | 2369 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 34,882 psi | 62% | 2441 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,567 psi | 72% | 2484 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,519 psi | 61% | 2339 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,699 psi | 75% | 2497 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 42,337 psi | 75% | 2493 fps | 100% |
| Alliant Power Pro 2000-MR | 39.7 gr | 80% | 36,564 psi | 65% | 2497 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,750 psi | 60% | 2359 fps | 97.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,361 psi | 64% | 2418 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,839 psi | 63% | 2457 fps | 95.4% |
| Alliant Reloder-17 | 40.1 gr | 82% | 31,038 psi | 55% | 2365 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,445 psi | 57% | 2408 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,508 psi | 70% | 2484 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 32,938 psi | 58% | 2356 fps | 97.1% |
| Bofors RP7 | <<locked>> | 94% | 47,413 psi | 84% | 2582 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,570 psi | 79% | 2490 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,901 psi | 72% | 2513 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,049 psi | 80% | 2644 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 36,303 psi | 64% | 2408 fps | 95% |
| Hodgdon H414 | <<locked>> | 96% | 46,760 psi | 83% | 2661 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,930 psi | 72% | 2497 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,763 psi | 54% | 2310 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,637 psi | 65% | 2461 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 46% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,465 psi | 70% | 2454 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,059 psi | 71% | 2493 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,201 psi | 64% | 2372 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,079 psi | 83% | 2549 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,644 psi | 82% | 2569 fps | 95.3% |
| IMR 4831 | <<locked>> | 90% | 34,113 psi | 60% | 2405 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,246 psi | 66% | 2448 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 42,699 psi | 75% | 2497 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 39,001 psi | 69% | 2461 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,147 psi | 73% | 2431 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,882 psi | 63% | 2379 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 40,016 psi | 71% | 2461 fps | 95.2% |
| Lovex S070 | <<locked>> | 96% | 45,658 psi | 81% | 2582 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 39,624 psi | 70% | 2441 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 39,914 psi | 71% | 2454 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,723 psi | 63% | 2408 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 35,781 psi | 63% | 2451 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,143 psi | 62% | 2415 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 42,757 psi | 76% | 2592 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 42,511 psi | 75% | 2497 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,684 psi | 74% | 2513 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,151 psi | 82% | 2543 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,092 psi | 46% | 1486 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,380 psi | 75% | 2503 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,710 psi | 67% | 2510 fps | 96.9% |
| ReloadSwiss RS 60 | 39.1 gr | 80% | 30,922 psi | 55% | 2375 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,492 psi | 66% | 2516 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,104 psi | 73% | 2589 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 43,236 psi | 76% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,492 psi | 66% | 2392 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 30,980 psi | 55% | 2300 fps | 96% |
| Rottweil R 907 | <<locked>> | 94% | 47,413 psi | 84% | 2582 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,016 psi | 71% | 2461 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,001 psi | 69% | 2461 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,882 psi | 63% | 2379 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 45,658 psi | 81% | 2582 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,198 psi | 57% | 2349 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,495 psi | 72% | 2467 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,102 psi | 69% | 2454 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,133 psi | 73% | 2405 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,895 psi | 60% | 2274 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,295 psi | 80% | 2513 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 45,788 psi | 81% | 2572 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,828 psi | 72% | 2408 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,248 psi | 71% | 2467 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 32,097 psi | 57% | 2313 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 27,789 psi | 49% | 2287 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 46,630 psi | 82% | 2467 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,394 psi | 73% | 2402 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,709 psi | 65% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,753 psi | 67% | 2392 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,443 psi | 54% | 2257 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 37,434 psi | 66% | 2451 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 42,627 psi | 75% | 2493 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,201 psi | 64% | 2379 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,637 psi | 65% | 2451 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 34,534 psi | 61% | 2477 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,009 psi | 55% | 2277 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,785 psi | 74% | 2533 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 46,760 psi | 83% | 2661 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,290 psi | 68% | 2454 fps | 98.1% |
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 88 powders for 7 x 57 loaded with the .284 | 150gr | Peregrine VLR-4. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,766 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,766 fps. Accurate 4350 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 | 150gr | Peregrine VLR-4 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.