Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Hornady GMX 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, 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.
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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% | 50,386 psi | 89% | 2562 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 51,039 psi | 90% | 2618 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,908 psi | 88% | 2635 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 50,966 psi | 90% | 2661 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,459 psi | 89% | 2726 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 86% | 49,356 psi | 87% | 2644 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 92% | 50,299 psi | 89% | 2641 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,805 psi | 86% | 2605 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 48,718 psi | 86% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,385 psi | 86% | 2740 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,821 psi | 88% | 2664 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,604 psi | 89% | 2684 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,226 psi | 87% | 2730 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,154 psi | 89% | 2772 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,563 psi | 61% | 2461 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,979 psi | 87% | 2654 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 49,951 psi | 88% | 2674 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 50,894 psi | 90% | 2641 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,778 psi | 90% | 2592 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,531 psi | 89% | 2674 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,878 psi | 86% | 2710 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 47,979 psi | 85% | 2635 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 98% | 50,256 psi | 89% | 2723 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 49,835 psi | 88% | 2654 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,266 psi | 80% | 2615 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,704 psi | 86% | 2684 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 62% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,169 psi | 90% | 2657 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 49,211 psi | 87% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,763 psi | 88% | 2625 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,111 psi | 89% | 2602 fps | 96.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,691 psi | 90% | 2664 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,661 psi | 88% | 2625 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,993 psi | 85% | 2671 fps | 98.6% |
| IMR 4895 | <<locked>> | 88% | 48,428 psi | 86% | 2657 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 48,805 psi | 86% | 2605 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 48,182 psi | 85% | 2621 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,559 psi | 88% | 2579 fps | 99.5% |
| Lovex S062 | <<locked>> | 90% | 49,327 psi | 87% | 2625 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,530 psi | 86% | 2615 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 49,008 psi | 87% | 2641 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 51,097 psi | 90% | 2638 fps | 100% |
| Norma 202 | <<locked>> | 86% | 48,443 psi | 86% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,777 psi | 88% | 2671 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 50,111 psi | 89% | 2720 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 49,821 psi | 88% | 2690 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,052 psi | 87% | 2710 fps | 97.1% |
| Ramshot TAC | <<locked>> | 84% | 48,660 psi | 86% | 2608 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,240 psi | 85% | 2631 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,429 psi | 87% | 2598 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,273 psi | 62% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,675 psi | 86% | 2618 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,473 psi | 89% | 2743 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,980 psi | 88% | 2776 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,009 psi | 88% | 2746 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,618 psi | 89% | 2772 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 84% | 49,139 psi | 87% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,704 psi | 86% | 2595 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 49,835 psi | 88% | 2667 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 96% | 50,894 psi | 90% | 2641 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,530 psi | 86% | 2615 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,182 psi | 85% | 2621 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,327 psi | 87% | 2625 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 49,008 psi | 87% | 2641 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,283 psi | 85% | 2674 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,009 psi | 88% | 2635 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,097 psi | 90% | 2667 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,038 psi | 88% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,082 psi | 89% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,762 psi | 86% | 2569 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 49,501 psi | 88% | 2631 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,211 psi | 87% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,966 psi | 88% | 2635 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 50,459 psi | 89% | 2667 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,396 psi | 78% | 2667 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 49,879 psi | 88% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,256 psi | 89% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,037 psi | 85% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,110 psi | 87% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,660 psi | 86% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,153 psi | 87% | 2664 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 84% | 48,950 psi | 87% | 2602 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 50,502 psi | 89% | 2625 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,167 psi | 85% | 2667 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,941 psi | 65% | 2536 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,922 psi | 88% | 2651 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 48,312 psi | 85% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,589 psi | 89% | 2726 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,720 psi | 90% | 2674 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% | 44,382 psi | 78% | 2474 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,419 psi | 64% | 2388 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,323 psi | 77% | 2533 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,505 psi | 61% | 2375 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,288 psi | 62% | 2451 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 40,770 psi | 72% | 2490 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,693 psi | 61% | 2346 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,859 psi | 76% | 2503 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,569 psi | 75% | 2497 fps | 100% |
| Alliant Power Pro 2000-MR | 39.9 gr | 80% | 36,680 psi | 65% | 2500 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,910 psi | 60% | 2365 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,535 psi | 65% | 2425 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,201 psi | 64% | 2470 fps | 95.6% |
| Alliant Reloder-17 | 40.3 gr | 82% | 31,169 psi | 55% | 2372 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,532 psi | 58% | 2411 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,668 psi | 70% | 2487 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,127 psi | 59% | 2362 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 47,543 psi | 84% | 2589 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,730 psi | 79% | 2497 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,075 psi | 73% | 2516 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,542 psi | 81% | 2654 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 82% | 36,709 psi | 65% | 2418 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 96% | 47,224 psi | 83% | 2671 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 41,089 psi | 73% | 2500 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,893 psi | 55% | 2316 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,043 psi | 65% | 2470 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 46% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,653 psi | 70% | 2457 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,292 psi | 71% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,361 psi | 64% | 2379 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,195 psi | 83% | 2552 fps | 95.6% |
| IMR 4350 | <<locked>> | 98% | 47,718 psi | 84% | 2615 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,746 psi | 83% | 2575 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 34,272 psi | 61% | 2411 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,405 psi | 66% | 2454 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 42,859 psi | 76% | 2503 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,175 psi | 69% | 2467 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,336 psi | 73% | 2438 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,085 psi | 64% | 2382 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 40,437 psi | 71% | 2470 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 46,108 psi | 82% | 2595 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 39,842 psi | 70% | 2448 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,132 psi | 71% | 2461 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,926 psi | 64% | 2411 fps | 97% |
| Norma URP | <<locked>> | 90% | 35,911 psi | 63% | 2454 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 35,259 psi | 62% | 2421 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 43,105 psi | 76% | 2605 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 42,641 psi | 75% | 2500 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,119 psi | 74% | 2523 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,282 psi | 82% | 2549 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,194 psi | 46% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,511 psi | 75% | 2510 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,927 psi | 67% | 2516 fps | 97% |
| ReloadSwiss RS 60 | 39.3 gr | 80% | 31,038 psi | 55% | 2382 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,869 psi | 67% | 2526 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,162 psi | 73% | 2592 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,439 psi | 77% | 2490 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,666 psi | 67% | 2398 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,154 psi | 55% | 2306 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 47,543 psi | 84% | 2589 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,437 psi | 71% | 2470 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,175 psi | 69% | 2467 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,085 psi | 64% | 2382 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 46,108 psi | 82% | 2595 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,343 psi | 57% | 2356 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,611 psi | 72% | 2470 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,262 psi | 69% | 2461 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,611 psi | 74% | 2415 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,316 psi | 61% | 2287 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,411 psi | 80% | 2516 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,948 psi | 81% | 2575 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,988 psi | 72% | 2415 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,422 psi | 71% | 2474 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,242 psi | 57% | 2320 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 28,094 psi | 50% | 2297 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,181 psi | 83% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,887 psi | 74% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,188 psi | 66% | 2392 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,913 psi | 67% | 2398 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,603 psi | 54% | 2260 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 35,244 psi | 62% | 2405 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 42,830 psi | 76% | 2500 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,390 psi | 64% | 2385 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 37,014 psi | 65% | 2461 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 32,503 psi | 57% | 2431 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,299 psi | 55% | 2287 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 41,959 psi | 74% | 2536 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 47,224 psi | 83% | 2671 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,464 psi | 68% | 2461 fps | 98.2% |
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 89 powders for 7 x 57 loaded with the .284 | 150gr | Hornady GMX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,776 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 61–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:9.5 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 | Hornady GMX 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.