Load Specifications
Load data in caliber 7 x 57 R with .284 | 150gr | Peregrine VLR-4 bullet and 63 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 ReloadSwiss RS 62.
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 2495 | <<locked>> | 86% | 43,410 psi | 88% | 2497 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,642 psi | 89% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,279 psi | 86% | 2579 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 42,438 psi | 86% | 2510 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 88% | 43,714 psi | 89% | 2516 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 82% | 44,353 psi | 90% | 2513 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,193 psi | 90% | 2648 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,859 psi | 87% | 2536 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,555 psi | 88% | 2552 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,641 psi | 86% | 2595 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,815 psi | 87% | 2628 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,924 psi | 69% | 2434 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,713 psi | 85% | 2513 fps | 97.3% |
| Bofors RP3 | <<locked>> | 88% | 42,467 psi | 86% | 2539 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,207 psi | 88% | 2543 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 88% | 43,961 psi | 89% | 2549 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 42,815 psi | 87% | 2520 fps | 98.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,367 psi | 90% | 2585 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 44,280 psi | 90% | 2595 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,853 psi | 71% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 44,034 psi | 89% | 2530 fps | 99% |
| IMR 3031 | <<locked>> | 82% | 42,279 psi | 86% | 2523 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,091 psi | 87% | 2500 fps | 98.1% |
| IMR 4831 | <<locked>> | 98% | 43,758 psi | 89% | 2589 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 41,872 psi | 85% | 2530 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 84% | 43,976 psi | 89% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 43,033 psi | 87% | 2457 fps | 98.5% |
| Lovex S062 | <<locked>> | 86% | 42,685 psi | 87% | 2500 fps | 99.3% |
| Norma 201 | <<locked>> | 84% | 44,193 psi | 90% | 2516 fps | 99.5% |
| Norma 202 | <<locked>> | 84% | 44,541 psi | 90% | 2526 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,830 psi | 87% | 2539 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 42,815 psi | 87% | 2582 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 86% | 42,395 psi | 86% | 2552 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,990 psi | 89% | 2546 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 71% | 1654 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,670 psi | 87% | 2595 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,641 psi | 86% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,163 psi | 86% | 2598 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,163 psi | 88% | 2618 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 84% | 42,105 psi | 85% | 2470 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 42,685 psi | 87% | 2536 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,976 psi | 89% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 42,685 psi | 87% | 2500 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 44,077 psi | 89% | 2589 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,772 psi | 87% | 2497 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,874 psi | 89% | 2533 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,323 psi | 88% | 2431 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,221 psi | 88% | 2434 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,641 psi | 86% | 2431 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,540 psi | 86% | 2500 fps | 98.3% |
| Somchem S355 | <<locked>> | 90% | 43,453 psi | 88% | 2539 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,279 psi | 88% | 2635 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 43,613 psi | 88% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,932 psi | 89% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,148 psi | 85% | 2464 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,800 psi | 85% | 2480 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 42,018 psi | 85% | 2530 fps | 97% |
| Vihtavuori N540 | <<locked>> | 86% | 43,308 psi | 88% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 44,063 psi | 89% | 2585 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,129 psi | 73% | 2507 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,714 psi | 87% | 2520 fps | 98.9% |
| Winchester 748 | <<locked>> | 82% | 44,135 psi | 90% | 2562 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,149 psi | 88% | 2536 fps | 99% |
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% | 35,389 psi | 72% | 2359 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,489 psi | 68% | 2346 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 36,738 psi | 75% | 2470 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 39,813 psi | 81% | 2457 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 34,098 psi | 69% | 2320 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 41,350 psi | 84% | 2467 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,984 psi | 73% | 2470 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,040 psi | 67% | 2333 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,650 psi | 72% | 2392 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,317 psi | 72% | 2434 fps | 95% |
| Alliant Reloder-17 | 40.2 gr | 84% | 32,532 psi | 66% | 2395 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,865 psi | 65% | 2382 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,928 psi | 79% | 2461 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 32,227 psi | 65% | 2329 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,190 psi | 82% | 2487 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 84% | 38,348 psi | 78% | 2441 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 40,161 psi | 81% | 2470 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,255 psi | 61% | 2287 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,216 psi | 73% | 2438 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 52% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,769 psi | 79% | 2428 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 39,465 psi | 80% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,708 psi | 72% | 2352 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 35,607 psi | 72% | 2428 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,506 psi | 74% | 2421 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 38,261 psi | 78% | 2438 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,422 psi | 82% | 2408 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,157 psi | 71% | 2352 fps | 97.9% |
| Norma 201 | <<locked>> | 80% | 38,870 psi | 79% | 2415 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,131 psi | 79% | 2431 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,056 psi | 71% | 2382 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 35,244 psi | 71% | 2428 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,534 psi | 70% | 2388 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,017 psi | 83% | 2490 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,904 psi | 53% | 1473 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,999 psi | 75% | 2480 fps | 96.6% |
| ReloadSwiss RS 60 | 38.3 gr | 80% | 30,385 psi | 62% | 2349 fps | 97.6% |
| ReloadSwiss RS 62 | 44 gr | 92% | 36,782 psi | 75% | 2490 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,248 psi | 82% | 2559 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 36,999 psi | 75% | 2369 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,284 psi | 61% | 2274 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,261 psi | 78% | 2438 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,157 psi | 71% | 2352 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,604 psi | 64% | 2326 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,842 psi | 81% | 2441 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,421 psi | 78% | 2428 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,596 psi | 82% | 2382 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,402 psi | 68% | 2257 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,074 psi | 81% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,624 psi | 80% | 2444 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,401 psi | 64% | 2287 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 27,499 psi | 56% | 2267 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 40,857 psi | 83% | 2382 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,114 psi | 73% | 2362 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,999 psi | 75% | 2369 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,776 psi | 60% | 2231 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 36,883 psi | 75% | 2428 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,563 psi | 72% | 2356 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,100 psi | 73% | 2428 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 33,794 psi | 69% | 2451 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,632 psi | 62% | 2257 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,031 psi | 83% | 2507 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,652 psi | 76% | 2431 fps | 97.9% |
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 63 powders for 7 x 57 R loaded with the .284 | 150gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,648 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 63 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 69–90 %, 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. Alliant Reloder-23, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 150gr | Peregrine VLR-4 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.