Load Specifications
Load data in caliber 7 x 57 with .284 | 145gr | Peregrine Glider GRM bullet and 85 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 Power Pro 2000-MR.
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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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% | 48,327 psi | 85% | 2572 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,719 psi | 88% | 2638 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,733 psi | 86% | 2631 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 47,776 psi | 84% | 2644 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,747 psi | 86% | 2671 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,630 psi | 84% | 2720 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 88% | 50,821 psi | 90% | 2703 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 92% | 48,747 psi | 86% | 2654 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,908 psi | 88% | 2657 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 49,647 psi | 88% | 2644 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,835 psi | 88% | 2799 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 50,879 psi | 90% | 2720 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,559 psi | 86% | 2690 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,340 psi | 84% | 2733 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,805 psi | 85% | 2769 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,357 psi | 89% | 2713 fps | 98.6% |
| Bofors RP3 | <<locked>> | 94% | 50,995 psi | 90% | 2730 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,965 psi | 87% | 2602 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,457 psi | 86% | 2684 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,140 psi | 89% | 2769 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 82% | 50,386 psi | 89% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,008 psi | 87% | 2687 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 86% | 47,848 psi | 85% | 2661 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,381 psi | 77% | 2615 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 49,647 psi | 88% | 2740 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,679 psi | 61% | 1650 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,211 psi | 87% | 2667 fps | 99.5% |
| IMR 3031 | <<locked>> | 88% | 50,517 psi | 89% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 48,196 psi | 85% | 2638 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 50,908 psi | 90% | 2677 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,542 psi | 81% | 2667 fps | 97.8% |
| IMR 4895 | <<locked>> | 90% | 49,763 psi | 88% | 2720 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 86% | 49,908 psi | 88% | 2657 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 49,356 psi | 87% | 2641 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 49,501 psi | 88% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 50,792 psi | 90% | 2635 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 50,734 psi | 90% | 2684 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 49,661 psi | 88% | 2667 fps | 97.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,140 psi | 89% | 2694 fps | 96.1% |
| Norma 201 | <<locked>> | 88% | 49,443 psi | 87% | 2654 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 49,864 psi | 88% | 2661 fps | 100% |
| Norma 203B | <<locked>> | 92% | 50,821 psi | 90% | 2726 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 47,630 psi | 84% | 2717 fps | 98% |
| Ramshot Big Game | <<locked>> | 90% | 47,776 psi | 84% | 2697 fps | 99% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,862 psi | 83% | 2707 fps | 96% |
| Ramshot TAC | <<locked>> | 86% | 50,111 psi | 89% | 2667 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,617 psi | 88% | 2690 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 50,908 psi | 90% | 2657 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,969 psi | 62% | 1686 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,487 psi | 87% | 2644 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,777 psi | 88% | 2671 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,124 psi | 85% | 2743 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 51,126 psi | 90% | 2831 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,442 psi | 84% | 2743 fps | 97.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,443 psi | 86% | 2766 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 86% | 50,198 psi | 89% | 2638 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,806 psi | 88% | 2648 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 96% | 50,865 psi | 90% | 2720 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,661 psi | 88% | 2667 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,501 psi | 88% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 50,734 psi | 90% | 2684 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,140 psi | 89% | 2694 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,617 psi | 88% | 2733 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,051 psi | 85% | 2641 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,153 psi | 87% | 2674 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,486 psi | 86% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,153 psi | 85% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,024 psi | 88% | 2625 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 50,937 psi | 90% | 2694 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 50,676 psi | 90% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 47,979 psi | 85% | 2641 fps | 99% |
| Somchem S355 | <<locked>> | 94% | 48,428 psi | 86% | 2671 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,482 psi | 75% | 2671 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 48,298 psi | 85% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,631 psi | 86% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,994 psi | 87% | 2625 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,227 psi | 89% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 49,792 psi | 88% | 2657 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,212 psi | 89% | 2717 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 86% | 50,459 psi | 89% | 2661 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 48,573 psi | 86% | 2635 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,182 psi | 87% | 2723 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,834 psi | 85% | 2654 fps | 99.4% |
| Winchester 748 | <<locked>> | 86% | 49,632 psi | 88% | 2703 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 48,704 psi | 86% | 2680 fps | 99.5% |
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 2015 | <<locked>> | 80% | 42,467 psi | 75% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,354 psi | 82% | 2585 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,548 psi | 61% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,684 psi | 74% | 2543 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 32,706 psi | 58% | 2375 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 35,839 psi | 63% | 2500 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 39,320 psi | 70% | 2497 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 35,665 psi | 63% | 2402 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,437 psi | 73% | 2513 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,437 psi | 71% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | 40.5 gr | 82% | 37,985 psi | 67% | 2562 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,300 psi | 57% | 2362 fps | 96.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,172 psi | 62% | 2428 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,970 psi | 65% | 2516 fps | 95.2% |
| Alliant Reloder-17 | 40.8 gr | 84% | 31,952 psi | 56% | 2425 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,261 psi | 68% | 2493 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 31,705 psi | 56% | 2362 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,337 psi | 77% | 2507 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,494 psi | 70% | 2523 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,511 psi | 77% | 2654 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 80% | 47,195 psi | 83% | 2612 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,176 psi | 71% | 2526 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 39,624 psi | 70% | 2507 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,473 psi | 56% | 2359 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,389 psi | 63% | 2467 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 46% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,000 psi | 67% | 2461 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 38,609 psi | 68% | 2510 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,041 psi | 62% | 2382 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,906 psi | 85% | 2628 fps | 95.1% |
| IMR 4831 | <<locked>> | 94% | 37,420 psi | 66% | 2513 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 35,969 psi | 64% | 2457 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 41,437 psi | 73% | 2513 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 46,006 psi | 81% | 2589 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,594 psi | 66% | 2474 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 39,755 psi | 70% | 2441 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 34,461 psi | 61% | 2382 fps | 97.4% |
| Lovex S065 | <<locked>> | 92% | 41,263 psi | 73% | 2520 fps | 95% |
| Lovex S070 | <<locked>> | 98% | 47,108 psi | 83% | 2644 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 38,130 psi | 67% | 2448 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 38,348 psi | 68% | 2464 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 34,519 psi | 61% | 2415 fps | 96% |
| Norma URP | <<locked>> | 92% | 36,564 psi | 65% | 2503 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,968 psi | 60% | 2421 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 98% | 44,077 psi | 78% | 2654 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 41,307 psi | 73% | 2510 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,364 psi | 71% | 2526 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,585 psi | 79% | 2552 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,846 psi | 46% | 1506 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,485 psi | 82% | 2595 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,789 psi | 83% | 2618 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,347 psi | 64% | 2516 fps | 96% |
| ReloadSwiss RS 60 | 38.9 gr | 80% | 29,921 psi | 53% | 2379 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,522 psi | 68% | 2572 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,438 psi | 75% | 2648 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,901 psi | 74% | 2500 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,303 psi | 64% | 2402 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 82% | 31,865 psi | 56% | 2359 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,263 psi | 73% | 2520 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,594 psi | 66% | 2474 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 34,461 psi | 61% | 2382 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 47,108 psi | 83% | 2644 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,127 psi | 59% | 2408 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,914 psi | 69% | 2470 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,869 psi | 67% | 2464 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,929 psi | 71% | 2418 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,779 psi | 58% | 2287 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,804 psi | 83% | 2572 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 44,425 psi | 79% | 2585 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,349 psi | 70% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,957 psi | 69% | 2480 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 30,734 psi | 54% | 2316 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 28,558 psi | 50% | 2343 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 45,339 psi | 80% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,161 psi | 71% | 2421 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,375 psi | 63% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,274 psi | 64% | 2402 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,153 psi | 52% | 2257 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 38,566 psi | 68% | 2510 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,336 psi | 73% | 2507 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 35,041 psi | 62% | 2392 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,623 psi | 67% | 2510 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,184 psi | 57% | 2339 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 40,350 psi | 71% | 2546 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,043 psi | 65% | 2467 fps | 97.4% |
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 85 powders for 7 x 57 loaded with the .284 | 145gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,831 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,831 fps. Accurate 4350 gives the best case fill at 100 %, and 85 of the 85 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 145.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, 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, Alliant Power Pro 2000-MR rank at the top here: for 7 x 57 with the .284 | 145gr | Peregrine Glider GRM 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.