Load Specifications
Bullet:.284 | 139gr | Barnes LRX BT
Bullet Manufacturer:Barnes
Bullet Weight:139 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 x 57 load data
Case Length (l3):2.244"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:61 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:56,565 psi
Recommended Twist Rate:1:9.5
Load data in caliber 7 x 57 with .284 | 139gr | Barnes LRX BT bullet and 166 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 Power Pro 2000-MR 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% | 48,428 psi | 86% | 2641 fps | 100% |
| Accurate 2015 | <<locked>> | 86% | 50,415 psi | 89% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,559 psi | 88% | 2700 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,573 psi | 86% | 2677 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,428 psi | 86% | 2694 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 50,560 psi | 89% | 2717 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 47,819 psi | 85% | 2710 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,937 psi | 88% | 2733 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,718 psi | 86% | 2736 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 50,488 psi | 89% | 2756 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,863 psi | 85% | 2789 fps | 97.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,311 psi | 82% | 2753 fps | 97.5% |
| ADI AR 2206H | <<locked>> | 88% | 50,560 psi | 89% | 2766 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 88% | 49,284 psi | 87% | 2736 fps | 99% |
| ADI AR 2208 | <<locked>> | 92% | 48,443 psi | 86% | 2713 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 94% | 50,662 psi | 90% | 2740 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,067 psi | 89% | 2730 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,820 psi | 86% | 2697 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 86% | 49,632 psi | 88% | 2713 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 48,370 psi | 86% | 2687 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,068 psi | 90% | 2822 fps | 99.6% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,893 psi | 88% | 2792 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,864 psi | 88% | 2867 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,530 psi | 86% | 2831 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,068 psi | 90% | 2785 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,530 psi | 88% | 2753 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 82% | 50,343 psi | 89% | 2671 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,530 psi | 86% | 2753 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,386 psi | 89% | 2776 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,268 psi | 84% | 2795 fps | 98% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,079 psi | 81% | 2759 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,950 psi | 85% | 2835 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 50,082 psi | 89% | 2864 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,111 psi | 89% | 2776 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,037 psi | 87% | 2746 fps | 98.1% |
| Bofors RP3 | <<locked>> | 94% | 51,068 psi | 90% | 2799 fps | 99.8% |
| Bofors RP3 | <<locked>> | 94% | 49,472 psi | 87% | 2766 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,979 psi | 87% | 2667 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 51,024 psi | 90% | 2690 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,327 psi | 85% | 2746 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 50,560 psi | 89% | 2772 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,024 psi | 88% | 2835 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,776 psi | 86% | 2805 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 82% | 50,401 psi | 89% | 2726 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 49,298 psi | 87% | 2703 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 50,299 psi | 89% | 2726 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,139 psi | 87% | 2753 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 94% | 51,169 psi | 90% | 2776 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 88% | 50,981 psi | 90% | 2779 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 88% | 49,719 psi | 88% | 2749 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,352 psi | 77% | 2677 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,105 psi | 74% | 2644 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 49,748 psi | 88% | 2805 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,588 psi | 86% | 2779 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 61% | 1696 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,679 psi | 61% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,313 psi | 87% | 2733 fps | 99.3% |
| Hodgdon VARGET | <<locked>> | 88% | 48,124 psi | 85% | 2703 fps | 99.1% |
| IMR 3031 | <<locked>> | 88% | 50,401 psi | 89% | 2769 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 49,226 psi | 87% | 2746 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 50,952 psi | 90% | 2746 fps | 99% |
| IMR 4064 | <<locked>> | 92% | 50,125 psi | 89% | 2723 fps | 98.7% |
| IMR 4198 | <<locked>> | 82% | 51,053 psi | 90% | 2635 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,716 psi | 81% | 2733 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,367 psi | 78% | 2700 fps | 97.1% |
| IMR 4895 | <<locked>> | 90% | 49,734 psi | 88% | 2785 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 48,501 psi | 86% | 2756 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 86% | 50,067 psi | 89% | 2730 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 48,820 psi | 86% | 2697 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 82% | 49,429 psi | 87% | 2707 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 48,167 psi | 85% | 2680 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 88% | 49,414 psi | 87% | 2746 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 48,138 psi | 85% | 2717 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 50,995 psi | 90% | 2703 fps | 99.3% |
| Lovex S060 | <<locked>> | 88% | 49,835 psi | 88% | 2677 fps | 99% |
| Lovex S062 | <<locked>> | 92% | 50,372 psi | 89% | 2746 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 49,139 psi | 87% | 2717 fps | 99.7% |
| Lovex S065 | <<locked>> | 98% | 49,676 psi | 88% | 2733 fps | 96.9% |
| Lovex S065 | <<locked>> | 98% | 48,385 psi | 86% | 2700 fps | 96.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,995 psi | 88% | 2756 fps | 95.8% |
| Norma 201 | <<locked>> | 88% | 49,240 psi | 87% | 2717 fps | 99.7% |
| Norma 201 | <<locked>> | 88% | 48,356 psi | 85% | 2690 fps | 99.6% |
| Norma 202 | <<locked>> | 88% | 49,647 psi | 88% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 88% | 48,675 psi | 86% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 92% | 50,720 psi | 90% | 2792 fps | 99.3% |
| Norma 203B | <<locked>> | 92% | 49,501 psi | 88% | 2762 fps | 99% |
| Norma URPᴾ | <<locked>> | 100% | 47,529 psi | 84% | 2779 fps | 97.8% |
| Norma URPᴾ | <<locked>> | 100% | 46,180 psi | 82% | 2746 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 92% | 51,126 psi | 90% | 2815 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 92% | 49,705 psi | 88% | 2785 fps | 98.9% |
| Ramshot TAC | <<locked>> | 86% | 50,328 psi | 89% | 2733 fps | 97.2% |
| Ramshot TAC | <<locked>> | 86% | 49,284 psi | 87% | 2707 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,487 psi | 87% | 2753 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,356 psi | 85% | 2726 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 50,923 psi | 90% | 2723 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,806 psi | 88% | 2697 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,853 psi | 62% | 1736 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,940 psi | 62% | 1729 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,443 psi | 87% | 2710 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,472 psi | 86% | 2684 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,821 psi | 88% | 2733 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,022 psi | 85% | 2808 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 50,241 psi | 89% | 2838 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 47,906 psi | 85% | 2844 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 50,009 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,674 psi | 84% | 2808 fps | 97.6% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,151 psi | 82% | 2772 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,602 psi | 86% | 2831 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,311 psi | 84% | 2792 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 86% | 50,212 psi | 89% | 2703 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 49,153 psi | 87% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,617 psi | 88% | 2713 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 90% | 48,689 psi | 86% | 2690 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 96% | 50,937 psi | 90% | 2789 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 96% | 49,371 psi | 87% | 2756 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,676 psi | 88% | 2733 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,385 psi | 86% | 2700 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,414 psi | 87% | 2746 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,138 psi | 85% | 2717 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 50,372 psi | 89% | 2746 fps | 99.8% |
| Shooters World Precision | <<locked>> | 92% | 49,139 psi | 87% | 2717 fps | 99.7% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,995 psi | 88% | 2756 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,559 psi | 88% | 2799 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,167 psi | 85% | 2766 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,254 psi | 85% | 2707 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,169 psi | 89% | 2726 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,066 psi | 87% | 2740 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,950 psi | 85% | 2710 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,225 psi | 85% | 2621 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,314 psi | 89% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,010 psi | 90% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 50,169 psi | 89% | 2644 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 50,894 psi | 90% | 2759 fps | 99.9% |
| Somchem S321 | <<locked>> | 84% | 49,719 psi | 88% | 2730 fps | 99.8% |
| Somchem S335 | <<locked>> | 88% | 50,517 psi | 89% | 2671 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 49,603 psi | 88% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 51,155 psi | 90% | 2756 fps | 99.2% |
| Somchem S341 | <<locked>> | 88% | 50,067 psi | 89% | 2730 fps | 99% |
| Somchem S355 | <<locked>> | 94% | 48,327 psi | 85% | 2736 fps | 99.3% |
| Somchem S355 | <<locked>> | 96% | 50,183 psi | 89% | 2756 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,308 psi | 75% | 2730 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,104 psi | 73% | 2697 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 82% | 48,211 psi | 85% | 2598 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 50,154 psi | 89% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,356 psi | 85% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,401 psi | 89% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,834 psi | 86% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 50,966 psi | 90% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,212 psi | 89% | 2707 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,023 psi | 87% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 49,835 psi | 88% | 2723 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 96% | 48,428 psi | 86% | 2694 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,401 psi | 89% | 2785 fps | 98.2% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,066 psi | 87% | 2753 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 86% | 50,270 psi | 89% | 2723 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 86% | 48,979 psi | 87% | 2694 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 90% | 48,428 psi | 86% | 2697 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 50,662 psi | 90% | 2723 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,226 psi | 87% | 2785 fps | 97.8% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,935 psi | 85% | 2756 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 48,080 psi | 85% | 2720 fps | 99.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,096 psi | 89% | 2743 fps | 99.4% |
| Winchester 748 | <<locked>> | 86% | 49,588 psi | 88% | 2769 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 48,327 psi | 85% | 2743 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 48,530 psi | 86% | 2743 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,792 psi | 90% | 2772 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% | 42,453 psi | 75% | 2546 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 41,640 psi | 74% | 2523 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,282 psi | 82% | 2648 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,295 psi | 80% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,737 psi | 61% | 2454 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,634 psi | 59% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,582 psi | 74% | 2602 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 40,321 psi | 71% | 2572 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 32,851 psi | 58% | 2434 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 31,865 psi | 56% | 2408 fps | 98.7% |
| Accurate 4350 | <<locked>> | 94% | 38,508 psi | 68% | 2615 fps | 95.6% |
| Accurate 4350 | <<locked>> | 94% | 37,362 psi | 66% | 2582 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 39,160 psi | 69% | 2556 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 80% | 38,218 psi | 68% | 2526 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 82% | 35,505 psi | 63% | 2454 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 84% | 36,912 psi | 65% | 2480 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,249 psi | 73% | 2572 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,306 psi | 71% | 2543 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 40,364 psi | 71% | 2569 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 39,450 psi | 70% | 2549 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,935 psi | 85% | 2769 fps | 99.3% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,746 psi | 83% | 2740 fps | 99% |
| Alliant Power Pro 2000-MR | 40.8 gr | 82% | 37,811 psi | 67% | 2618 fps | 95.4% |
| Alliant Power Pro 2000-MR | 41.8 gr | 84% | 39,407 psi | 70% | 2644 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,445 psi | 57% | 2421 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,517 psi | 56% | 2392 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,239 psi | 84% | 2621 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,969 psi | 62% | 2480 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,332 psi | 64% | 2503 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,233 psi | 69% | 2628 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,290 psi | 68% | 2595 fps | 95.1% |
| Alliant Reloder-17 | 42.2 gr | 86% | 34,243 psi | 61% | 2539 fps | 95.8% |
| Alliant Reloder-17 | 42.2 gr | 86% | 33,359 psi | 59% | 2507 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,101 psi | 67% | 2549 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,318 psi | 66% | 2523 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 31,502 psi | 56% | 2415 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 30,618 psi | 54% | 2385 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,221 psi | 76% | 2569 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,279 psi | 75% | 2543 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,407 psi | 70% | 2582 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,247 psi | 68% | 2552 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,294 psi | 77% | 2713 fps | 97.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,366 psi | 75% | 2687 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 47,369 psi | 84% | 2680 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 46,238 psi | 82% | 2654 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,963 psi | 83% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,263 psi | 71% | 2589 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 88% | 41,713 psi | 74% | 2608 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,436 psi | 70% | 2566 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 80% | 38,493 psi | 68% | 2539 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 33,562 psi | 59% | 2470 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,663 psi | 58% | 2434 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,346 psi | 62% | 2526 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,534 psi | 61% | 2500 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 45% | 1516 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,570 psi | 45% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,101 psi | 67% | 2523 fps | 97.3% |
| Hodgdon VARGET | <<locked>> | 80% | 37,217 psi | 66% | 2493 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 38,537 psi | 68% | 2572 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 37,362 psi | 66% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,998 psi | 62% | 2441 fps | 95.3% |
| IMR 4064 | <<locked>> | 82% | 36,347 psi | 64% | 2461 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 47,863 psi | 85% | 2589 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 37,275 psi | 66% | 2569 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 38,653 psi | 68% | 2589 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,795 psi | 63% | 2513 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 34,882 psi | 62% | 2484 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 41,249 psi | 73% | 2572 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 40,306 psi | 71% | 2543 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 46,166 psi | 82% | 2654 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 44,904 psi | 79% | 2625 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 37,594 psi | 66% | 2536 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 36,376 psi | 64% | 2503 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 39,929 psi | 71% | 2507 fps | 97.3% |
| Lovex S060 | <<locked>> | 80% | 39,044 psi | 69% | 2477 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 34,606 psi | 61% | 2444 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 33,707 psi | 60% | 2415 fps | 96.8% |
| Lovex S065 | <<locked>> | 94% | 43,772 psi | 77% | 2628 fps | 95.5% |
| Lovex S065 | <<locked>> | 96% | 45,455 psi | 80% | 2648 fps | 95.7% |
| Lovex S070 | <<locked>> | 98% | 47,065 psi | 83% | 2707 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,276 psi | 68% | 2513 fps | 98.1% |
| Norma 201 | <<locked>> | 80% | 37,347 psi | 66% | 2484 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 38,493 psi | 68% | 2526 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 37,507 psi | 66% | 2500 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 34,374 psi | 61% | 2470 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 33,460 psi | 59% | 2441 fps | 95.1% |
| Norma URP | <<locked>> | 94% | 39,117 psi | 69% | 2618 fps | 95.6% |
| Norma URP | <<locked>> | 94% | 38,116 psi | 67% | 2589 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,852 psi | 60% | 2477 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 35,244 psi | 62% | 2500 fps | 95.4% |
| Ramshot TAC | <<locked>> | 82% | 43,918 psi | 78% | 2621 fps | 95.7% |
| Ramshot TAC | <<locked>> | 82% | 42,902 psi | 76% | 2592 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,263 psi | 71% | 2585 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,407 psi | 70% | 2559 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,773 psi | 79% | 2621 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,627 psi | 77% | 2589 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 46% | 1555 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,628 psi | 45% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,224 psi | 82% | 2657 fps | 99.9% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,223 psi | 80% | 2631 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,615 psi | 82% | 2680 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,056 psi | 64% | 2569 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,143 psi | 62% | 2539 fps | 95% |
| ReloadSwiss RS 60 | 39.2 gr | 80% | 29,863 psi | 53% | 2431 fps | 96.5% |
| ReloadSwiss RS 60 | 39.2 gr | 80% | 29,037 psi | 51% | 2395 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,450 psi | 68% | 2628 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,987 psi | 71% | 2654 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,177 psi | 75% | 2700 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,135 psi | 78% | 2730 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,901 psi | 74% | 2562 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 80% | 40,828 psi | 72% | 2536 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 36,260 psi | 64% | 2461 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,534 psi | 63% | 2438 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 31,676 psi | 56% | 2411 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 84% | 32,880 psi | 58% | 2434 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,772 psi | 77% | 2628 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,455 psi | 80% | 2648 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,594 psi | 66% | 2536 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,376 psi | 64% | 2503 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 34,606 psi | 61% | 2444 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 33,707 psi | 60% | 2415 fps | 96.8% |
| Shooters World SW4350 | <<locked>> | 98% | 47,065 psi | 83% | 2707 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,346 psi | 62% | 2516 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,606 psi | 61% | 2493 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,829 psi | 74% | 2589 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,698 psi | 72% | 2559 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,623 psi | 67% | 2520 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,753 psi | 65% | 2493 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,914 psi | 71% | 2480 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,233 psi | 69% | 2461 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,808 psi | 58% | 2346 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,140 psi | 57% | 2323 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 44,251 psi | 78% | 2648 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 43,352 psi | 77% | 2621 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 39,523 psi | 70% | 2487 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 38,595 psi | 68% | 2461 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,812 psi | 69% | 2536 fps | 96.9% |
| Somchem S341 | <<locked>> | 80% | 37,985 psi | 67% | 2510 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 32,866 psi | 58% | 2425 fps | 95.6% |
| Somchem S355 | <<locked>> | 82% | 32,039 psi | 57% | 2395 fps | 95.1% |
| Somchem S365 | <<locked>> | 90% | 30,385 psi | 54% | 2448 fps | 95.9% |
| Somchem S365 | <<locked>> | 90% | 29,791 psi | 53% | 2421 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 45,353 psi | 80% | 2556 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 44,570 psi | 79% | 2533 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,147 psi | 71% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,421 psi | 70% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,360 psi | 63% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,577 psi | 61% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,376 psi | 64% | 2464 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 35,462 psi | 63% | 2438 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 29,240 psi | 52% | 2316 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 28,442 psi | 50% | 2287 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 92% | 38,450 psi | 68% | 2566 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 94% | 40,219 psi | 71% | 2595 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,118 psi | 73% | 2566 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 80% | 40,161 psi | 71% | 2536 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 34,838 psi | 62% | 2448 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 33,982 psi | 60% | 2421 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 94% | 40,393 psi | 71% | 2625 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 94% | 39,175 psi | 69% | 2592 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,068 psi | 57% | 2392 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,518 psi | 59% | 2415 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,292 psi | 71% | 2605 fps | 99.2% |
| Winchester 748 | <<locked>> | 80% | 39,349 psi | 70% | 2579 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,956 psi | 65% | 2523 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,868 psi | 63% | 2493 fps | 96.6% |
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 166 powders for 7 x 57 loaded with the .284 | 139gr | Barnes LRX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,871 fps. Accurate 4350 gives the best case fill at 100 %, and 166 of the 166 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 139.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Accurate 4350, Alliant Reloder-16 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 Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 139gr | Barnes LRX BT 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.