Load Specifications
Load data in caliber 7 x 57 with .284 | 160gr | Peregrine Glider GRM bullet and 89 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 50,647 psi | 90% | 2464 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 51,169 psi | 90% | 2520 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,401 psi | 89% | 2543 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 47,993 psi | 85% | 2520 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,705 psi | 90% | 2635 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 49,647 psi | 88% | 2549 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 50,807 psi | 90% | 2552 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,936 psi | 87% | 2510 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 49,081 psi | 87% | 2490 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,878 psi | 86% | 2648 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,096 psi | 89% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,807 psi | 90% | 2589 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,603 psi | 88% | 2641 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,444 psi | 89% | 2677 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,882 psi | 62% | 2385 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,682 psi | 68% | 2523 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,385 psi | 87% | 2566 fps | 99.1% |
| Bofors RP3 | <<locked>> | 92% | 50,401 psi | 89% | 2582 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 51,053 psi | 90% | 2549 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,169 psi | 90% | 2500 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,850 psi | 90% | 2579 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,443 psi | 87% | 2618 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 90% | 48,341 psi | 85% | 2543 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 98% | 50,923 psi | 90% | 2638 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 50,111 psi | 89% | 2559 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,600 psi | 81% | 2526 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 49,081 psi | 87% | 2592 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 62% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,370 psi | 86% | 2516 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 49,661 psi | 88% | 2546 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,140 psi | 89% | 2533 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,560 psi | 89% | 2513 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,009 psi | 88% | 2536 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,225 psi | 85% | 2579 fps | 99% |
| IMR 4895 | <<locked>> | 88% | 48,849 psi | 86% | 2569 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 48,936 psi | 87% | 2510 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 48,704 psi | 86% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,009 psi | 88% | 2490 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 49,719 psi | 88% | 2533 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 49,023 psi | 87% | 2530 fps | 97.9% |
| Lovex S070 | <<locked>> | 98% | 49,356 psi | 87% | 2556 fps | 96.9% |
| Norma 201 | <<locked>> | 86% | 48,530 psi | 86% | 2503 fps | 100% |
| Norma 202 | <<locked>> | 86% | 48,979 psi | 87% | 2507 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,009 psi | 88% | 2575 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 50,299 psi | 89% | 2625 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 90% | 50,488 psi | 89% | 2605 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,516 psi | 88% | 2621 fps | 97.6% |
| Ramshot TAC | <<locked>> | 84% | 49,240 psi | 87% | 2523 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,443 psi | 86% | 2536 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,792 psi | 88% | 2510 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 63% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,791 psi | 86% | 2526 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,865 psi | 90% | 2648 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,488 psi | 89% | 2684 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,241 psi | 89% | 2654 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,923 psi | 90% | 2680 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 84% | 49,690 psi | 88% | 2490 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,921 psi | 86% | 2500 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 50,285 psi | 89% | 2575 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 51,053 psi | 90% | 2549 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,023 psi | 87% | 2530 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,704 psi | 86% | 2530 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,719 psi | 88% | 2533 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 49,356 psi | 87% | 2556 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,863 psi | 86% | 2585 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,386 psi | 89% | 2546 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,254 psi | 85% | 2526 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,299 psi | 89% | 2451 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,415 psi | 89% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,110 psi | 87% | 2484 fps | 96.5% |
| Somchem S321 | <<locked>> | 82% | 49,632 psi | 88% | 2536 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,676 psi | 88% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,357 psi | 89% | 2546 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 50,836 psi | 90% | 2575 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,991 psi | 80% | 2582 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 50,241 psi | 89% | 2421 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,560 psi | 89% | 2441 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,486 psi | 86% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,472 psi | 87% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,124 psi | 87% | 2513 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,647 psi | 88% | 2575 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 49,110 psi | 87% | 2507 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 50,836 psi | 90% | 2533 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,747 psi | 86% | 2582 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,376 psi | 66% | 2457 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,125 psi | 89% | 2562 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 48,776 psi | 86% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,923 psi | 90% | 2638 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 51,184 psi | 90% | 2582 fps | 99.9% |
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% | 44,686 psi | 79% | 2382 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,869 psi | 65% | 2303 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,830 psi | 77% | 2444 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,882 psi | 62% | 2297 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 33,083 psi | 58% | 2316 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,973 psi | 72% | 2402 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 34,983 psi | 62% | 2267 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,047 psi | 76% | 2411 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 42,989 psi | 76% | 2408 fps | 100% |
| Alliant Power Pro 2000-MR | 38.2 gr | 80% | 37,144 psi | 66% | 2425 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,287 psi | 61% | 2287 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,724 psi | 65% | 2339 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,243 psi | 61% | 2336 fps | 95.4% |
| Alliant Reloder-17 | 37.6 gr | 80% | 29,428 psi | 52% | 2244 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,937 psi | 55% | 2290 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 35,940 psi | 64% | 2461 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,234 psi | 71% | 2408 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 33,344 psi | 59% | 2280 fps | 97.7% |
| Bofors RP7 | <<locked>> | 94% | 47,892 psi | 85% | 2500 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,165 psi | 80% | 2408 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,597 psi | 74% | 2434 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,963 psi | 81% | 2562 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 82% | 36,854 psi | 65% | 2336 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 94% | 44,324 psi | 78% | 2526 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 41,292 psi | 73% | 2411 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,298 psi | 52% | 2192 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,188 psi | 66% | 2382 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 46% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,813 psi | 70% | 2372 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 40,669 psi | 72% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,680 psi | 65% | 2300 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 44,570 psi | 79% | 2415 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 44,150 psi | 78% | 2438 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 34,693 psi | 61% | 2336 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 37,608 psi | 66% | 2369 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,047 psi | 76% | 2411 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 39,537 psi | 70% | 2382 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 41,669 psi | 74% | 2352 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 36,434 psi | 64% | 2303 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 38,276 psi | 68% | 2339 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 43,729 psi | 77% | 2461 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 40,190 psi | 71% | 2362 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 40,538 psi | 72% | 2375 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,114 psi | 64% | 2329 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 33,982 psi | 60% | 2326 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 35,723 psi | 63% | 2343 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 40,640 psi | 72% | 2464 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 42,902 psi | 76% | 2415 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,337 psi | 75% | 2438 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,804 psi | 83% | 2464 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 46% | 1424 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,975 psi | 76% | 2428 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,319 psi | 68% | 2431 fps | 97.6% |
| ReloadSwiss RS 60 | 37.6 gr | 80% | 31,386 psi | 55% | 2306 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,737 psi | 63% | 2392 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,783 psi | 69% | 2454 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 43,700 psi | 77% | 2398 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,247 psi | 68% | 2320 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 31,560 psi | 56% | 2234 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 47,892 psi | 85% | 2500 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 38,276 psi | 68% | 2339 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,537 psi | 70% | 2382 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 36,434 psi | 64% | 2303 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 43,729 psi | 77% | 2461 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,634 psi | 58% | 2277 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,162 psi | 73% | 2392 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,595 psi | 70% | 2375 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,829 psi | 74% | 2326 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,519 psi | 61% | 2205 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 42,902 psi | 76% | 2385 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 46,572 psi | 82% | 2490 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 41,379 psi | 73% | 2329 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,944 psi | 72% | 2392 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 32,605 psi | 58% | 2244 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 26,484 psi | 47% | 2172 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 47,398 psi | 84% | 2382 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,134 psi | 74% | 2323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,434 psi | 66% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,363 psi | 68% | 2316 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,995 psi | 55% | 2188 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 88% | 35,607 psi | 63% | 2329 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 43,062 psi | 76% | 2408 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 36,651 psi | 65% | 2303 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 34,954 psi | 62% | 2333 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 32,909 psi | 58% | 2359 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,370 psi | 52% | 2162 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 42,424 psi | 75% | 2451 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 44,672 psi | 79% | 2533 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,914 psi | 69% | 2379 fps | 98.6% |
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 89 powders for 7 x 57 loaded with the .284 | 160gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,684 fps. Accurate 4350 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:8.0 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 x 57 with the .284 | 160gr | 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.