Load Specifications
Load data in caliber 7 x 57 R with .284 | 145gr | CutEdge LZR MAX bullet and 66 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 Reloder-16.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 42,293 psi | 86% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 44,483 psi | 90% | 2585 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 42,554 psi | 86% | 2566 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 44,295 psi | 90% | 2657 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 84% | 44,309 psi | 90% | 2585 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 88% | 42,801 psi | 87% | 2543 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,801 psi | 89% | 2549 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 82% | 43,294 psi | 88% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,149 psi | 88% | 2667 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,585 psi | 90% | 2608 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,583 psi | 86% | 2575 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 44,324 psi | 90% | 2667 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,469 psi | 90% | 2700 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,714 psi | 89% | 2592 fps | 97.4% |
| Bofors RP3 | <<locked>> | 90% | 44,179 psi | 90% | 2612 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,163 psi | 86% | 2566 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 88% | 42,612 psi | 86% | 2566 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 41,916 psi | 85% | 2546 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,221 psi | 88% | 2605 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,207 psi | 88% | 2621 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,809 psi | 71% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,149 psi | 88% | 2556 fps | 98.6% |
| IMR 3031 | <<locked>> | 84% | 43,859 psi | 89% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,192 psi | 86% | 2523 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 42,525 psi | 86% | 2608 fps | 97.1% |
| IMR 4895 | <<locked>> | 86% | 43,627 psi | 88% | 2605 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 82% | 43,801 psi | 89% | 2549 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 84% | 42,888 psi | 87% | 2566 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 42,264 psi | 86% | 2484 fps | 98.1% |
| Lovex S062 | <<locked>> | 88% | 44,512 psi | 90% | 2575 fps | 99.4% |
| Norma 201 | <<locked>> | 84% | 43,323 psi | 88% | 2543 fps | 99.2% |
| Norma 202 | <<locked>> | 84% | 43,598 psi | 88% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 88% | 44,599 psi | 90% | 2615 fps | 98.6% |
| Norma URP | <<locked>> | 98% | 44,498 psi | 90% | 2657 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 88% | 44,367 psi | 90% | 2631 fps | 98.4% |
| Ramshot TAC | <<locked>> | 82% | 43,947 psi | 89% | 2552 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,047 psi | 87% | 2569 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,114 psi | 71% | 1683 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,440 psi | 90% | 2674 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,611 psi | 84% | 2654 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 44,063 psi | 89% | 2674 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 82% | 44,266 psi | 90% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 43,627 psi | 88% | 2539 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 92% | 44,077 psi | 89% | 2605 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,888 psi | 87% | 2566 fps | 99.9% |
| Shooters World Precision | <<locked>> | 88% | 44,512 psi | 90% | 2575 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,946 psi | 87% | 2612 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,556 psi | 90% | 2572 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,960 psi | 87% | 2559 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,583 psi | 86% | 2461 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,351 psi | 86% | 2464 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,556 psi | 90% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 44,585 psi | 90% | 2575 fps | 98.4% |
| Somchem S355 | <<locked>> | 90% | 42,467 psi | 86% | 2562 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,061 psi | 85% | 2654 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 42,786 psi | 87% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,931 psi | 87% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 44,005 psi | 89% | 2536 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 43,236 psi | 88% | 2546 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 96% | 43,685 psi | 89% | 2602 fps | 97% |
| Vihtavuori N530 | <<locked>> | 82% | 43,787 psi | 89% | 2546 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 86% | 42,380 psi | 86% | 2530 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 42,888 psi | 87% | 2605 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,698 psi | 85% | 2539 fps | 98.5% |
| Winchester 748 | <<locked>> | 82% | 43,134 psi | 87% | 2589 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,119 psi | 85% | 2559 fps | 98.5% |
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 2495 | <<locked>> | 80% | 34,505 psi | 70% | 2382 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,379 psi | 84% | 2530 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 32,648 psi | 66% | 2365 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 38,203 psi | 77% | 2543 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 39,030 psi | 79% | 2484 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 35,404 psi | 72% | 2388 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,147 psi | 83% | 2500 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,350 psi | 82% | 2500 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,753 psi | 77% | 2549 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,256 psi | 65% | 2356 fps | 96.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,896 psi | 71% | 2415 fps | 95.4% |
| Alliant Reloder-16 | 41.1 gr | 92% | 36,782 psi | 75% | 2507 fps | 95.1% |
| Alliant Reloder-17 | 40.4 gr | 84% | 31,807 psi | 65% | 2415 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,029 psi | 77% | 2480 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 31,444 psi | 64% | 2349 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,262 psi | 80% | 2513 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 39,987 psi | 81% | 2516 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,334 psi | 80% | 2497 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,270 psi | 63% | 2349 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,157 psi | 71% | 2454 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 52% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,971 psi | 77% | 2454 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 38,537 psi | 78% | 2503 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,780 psi | 71% | 2369 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 36,970 psi | 75% | 2497 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,694 psi | 72% | 2444 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,147 psi | 83% | 2500 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 37,333 psi | 76% | 2461 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 39,726 psi | 81% | 2434 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 34,403 psi | 70% | 2375 fps | 97.4% |
| Norma 201 | <<locked>> | 80% | 38,087 psi | 77% | 2441 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 38,319 psi | 78% | 2457 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 34,258 psi | 69% | 2405 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 39,073 psi | 79% | 2549 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 33,765 psi | 68% | 2411 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 41,104 psi | 83% | 2497 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,147 psi | 81% | 2513 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,875 psi | 52% | 1503 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,085 psi | 73% | 2503 fps | 95.8% |
| ReloadSwiss RS 60 | 38.5 gr | 80% | 29,733 psi | 60% | 2365 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,421 psi | 78% | 2566 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 41,872 psi | 85% | 2493 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,245 psi | 74% | 2395 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 31,604 psi | 64% | 2346 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,333 psi | 76% | 2461 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 34,403 psi | 70% | 2375 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,924 psi | 67% | 2395 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,943 psi | 79% | 2464 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,623 psi | 76% | 2454 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,871 psi | 81% | 2411 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,750 psi | 66% | 2280 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,305 psi | 80% | 2415 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,740 psi | 79% | 2467 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 30,705 psi | 62% | 2306 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 28,587 psi | 58% | 2336 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 40,089 psi | 81% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,288 psi | 72% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,230 psi | 73% | 2395 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,124 psi | 59% | 2251 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 38,392 psi | 78% | 2500 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 41,046 psi | 83% | 2497 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,809 psi | 71% | 2382 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,478 psi | 76% | 2500 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,068 psi | 65% | 2329 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,089 psi | 81% | 2533 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,782 psi | 75% | 2454 fps | 97.3% |
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 66 powders for 7 x 57 R loaded with the .284 | 145gr | CutEdge LZR MAX. Alliant Reloder-17 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,700 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 71–90 %, 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. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 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 Reloder-16 rank at the top here: for 7 x 57 R with the .284 | 145gr | CutEdge LZR MAX 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.