Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Osprey Virtus 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.
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% | 50,038 psi | 88% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 50,705 psi | 90% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,966 psi | 88% | 2635 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 51,039 psi | 90% | 2661 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,096 psi | 89% | 2720 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 86% | 49,400 psi | 87% | 2641 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 92% | 50,314 psi | 89% | 2641 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,849 psi | 86% | 2602 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 48,762 psi | 86% | 2589 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,443 psi | 86% | 2740 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,835 psi | 88% | 2664 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,647 psi | 90% | 2684 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,211 psi | 87% | 2730 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,154 psi | 89% | 2769 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,606 psi | 61% | 2461 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,037 psi | 87% | 2654 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 49,951 psi | 88% | 2674 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 50,618 psi | 89% | 2638 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,821 psi | 90% | 2592 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,546 psi | 89% | 2674 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,907 psi | 86% | 2710 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 92% | 51,097 psi | 90% | 2680 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 98% | 50,328 psi | 89% | 2723 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 49,835 psi | 88% | 2654 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,295 psi | 80% | 2615 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,747 psi | 86% | 2684 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 62% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,124 psi | 85% | 2612 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 49,197 psi | 87% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,821 psi | 88% | 2625 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,154 psi | 89% | 2602 fps | 96.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,749 psi | 90% | 2664 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,661 psi | 88% | 2625 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,688 psi | 84% | 2667 fps | 98.6% |
| IMR 4895 | <<locked>> | 88% | 48,443 psi | 86% | 2657 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 48,849 psi | 86% | 2602 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 48,240 psi | 85% | 2621 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,603 psi | 88% | 2582 fps | 99.5% |
| Lovex S062 | <<locked>> | 90% | 49,313 psi | 87% | 2625 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,573 psi | 86% | 2615 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 49,037 psi | 87% | 2641 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 51,126 psi | 90% | 2638 fps | 100% |
| Norma 202 | <<locked>> | 86% | 48,486 psi | 86% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,835 psi | 88% | 2671 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 49,777 psi | 88% | 2713 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 90% | 49,864 psi | 88% | 2690 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,124 psi | 87% | 2710 fps | 97.1% |
| Ramshot TAC | <<locked>> | 84% | 48,689 psi | 86% | 2608 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,921 psi | 85% | 2625 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,472 psi | 87% | 2598 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 62% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,675 psi | 86% | 2618 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,502 psi | 89% | 2740 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,009 psi | 88% | 2776 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,009 psi | 88% | 2746 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,676 psi | 90% | 2769 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 84% | 49,139 psi | 87% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,414 psi | 86% | 2589 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 49,835 psi | 88% | 2667 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 96% | 50,618 psi | 89% | 2638 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,573 psi | 86% | 2615 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,240 psi | 85% | 2621 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,313 psi | 87% | 2625 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 49,037 psi | 87% | 2641 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,312 psi | 85% | 2671 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,067 psi | 89% | 2635 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,155 psi | 90% | 2667 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,096 psi | 89% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,067 psi | 89% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,834 psi | 86% | 2572 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 49,226 psi | 87% | 2628 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,255 psi | 87% | 2543 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,980 psi | 88% | 2635 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 50,488 psi | 89% | 2664 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,454 psi | 79% | 2667 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 49,922 psi | 88% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,270 psi | 89% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,037 psi | 85% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,168 psi | 87% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,718 psi | 86% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 49,211 psi | 87% | 2664 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 84% | 48,950 psi | 87% | 2598 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 50,502 psi | 89% | 2625 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,196 psi | 85% | 2667 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,999 psi | 65% | 2533 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,922 psi | 88% | 2651 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 48,356 psi | 85% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,647 psi | 90% | 2730 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,778 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% | 44,063 psi | 78% | 2467 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,463 psi | 64% | 2388 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,366 psi | 77% | 2533 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,505 psi | 61% | 2375 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,317 psi | 62% | 2451 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 40,770 psi | 72% | 2490 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,708 psi | 61% | 2346 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,902 psi | 76% | 2503 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,612 psi | 75% | 2497 fps | 100% |
| Alliant Power Pro 2000-MR | 39.9 gr | 80% | 36,724 psi | 65% | 2500 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,939 psi | 60% | 2365 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,564 psi | 65% | 2425 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,216 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% | 32,547 psi | 58% | 2411 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,711 psi | 70% | 2487 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,112 psi | 59% | 2359 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 47,587 psi | 84% | 2589 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,773 psi | 79% | 2497 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,060 psi | 73% | 2516 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,585 psi | 81% | 2654 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 82% | 36,492 psi | 65% | 2415 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 96% | 46,920 psi | 83% | 2667 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 41,133 psi | 73% | 2500 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,908 psi | 55% | 2313 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,811 psi | 65% | 2464 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 46% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,682 psi | 70% | 2457 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,321 psi | 71% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,390 psi | 64% | 2379 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,210 psi | 83% | 2552 fps | 95.6% |
| IMR 4350 | <<locked>> | 98% | 47,732 psi | 84% | 2615 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,804 psi | 83% | 2575 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 34,287 psi | 61% | 2411 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,449 psi | 66% | 2454 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 42,902 psi | 76% | 2503 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,218 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 | 98.2% |
| Lovex S065 | <<locked>> | 90% | 40,161 psi | 71% | 2464 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 46,108 psi | 82% | 2592 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 39,827 psi | 70% | 2448 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,118 psi | 71% | 2461 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,926 psi | 64% | 2411 fps | 97% |
| Norma URP | <<locked>> | 90% | 35,955 psi | 64% | 2454 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 35,302 psi | 62% | 2421 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 42,888 psi | 76% | 2598 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 42,670 psi | 75% | 2500 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,858 psi | 74% | 2520 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,325 psi | 82% | 2549 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,208 psi | 46% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,525 psi | 75% | 2507 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,956 psi | 67% | 2516 fps | 97% |
| ReloadSwiss RS 60 | 39.3 gr | 80% | 31,067 psi | 55% | 2382 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,884 psi | 67% | 2526 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,205 psi | 73% | 2592 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,439 psi | 77% | 2487 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,695 psi | 67% | 2395 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,169 psi | 55% | 2306 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 47,587 psi | 84% | 2589 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,161 psi | 71% | 2464 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,218 psi | 69% | 2467 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,085 psi | 64% | 2382 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 46,108 psi | 82% | 2592 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,358 psi | 57% | 2356 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,654 psi | 72% | 2470 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,276 psi | 69% | 2457 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,350 psi | 73% | 2408 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,069 psi | 60% | 2280 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,411 psi | 80% | 2516 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,992 psi | 81% | 2575 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,031 psi | 73% | 2415 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,422 psi | 71% | 2474 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,285 psi | 57% | 2320 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 28,108 psi | 50% | 2300 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 46,876 psi | 83% | 2470 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,626 psi | 74% | 2408 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,927 psi | 65% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,956 psi | 67% | 2398 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,632 psi | 54% | 2260 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 35,288 psi | 62% | 2408 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 42,815 psi | 76% | 2497 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,376 psi | 64% | 2385 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,999 psi | 65% | 2461 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 32,532 psi | 58% | 2431 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,111 psi | 55% | 2283 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 42,003 psi | 74% | 2536 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 47,224 psi | 83% | 2671 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,508 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 | Osprey Virtus. 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 1:9.0 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 | Osprey Virtus 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.