Load Specifications
Load data in caliber 7 x 57 R with .284 | 148gr | TWENTY-NINE ERTP bullet and 62 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>> | 84% | 42,061 psi | 85% | 2484 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,264 psi | 86% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 43,381 psi | 88% | 2608 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 43,366 psi | 88% | 2536 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 88% | 44,483 psi | 90% | 2539 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,930 psi | 85% | 2612 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,743 psi | 89% | 2559 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 44,150 psi | 90% | 2569 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 43,424 psi | 88% | 2621 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 43,337 psi | 88% | 2648 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,563 psi | 70% | 2454 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,525 psi | 86% | 2539 fps | 97.3% |
| Bofors RP3 | <<locked>> | 88% | 43,526 psi | 88% | 2569 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,816 psi | 89% | 2562 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 86% | 41,887 psi | 85% | 2520 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 43,700 psi | 89% | 2546 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,409 psi | 86% | 2559 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,047 psi | 85% | 2566 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 71% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,090 psi | 85% | 2503 fps | 98.6% |
| IMR 3031 | <<locked>> | 82% | 42,888 psi | 87% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,888 psi | 89% | 2523 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 44,338 psi | 90% | 2608 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 42,467 psi | 86% | 2552 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 82% | 41,930 psi | 85% | 2513 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 43,801 psi | 89% | 2477 fps | 98.5% |
| Lovex S062 | <<locked>> | 86% | 43,656 psi | 89% | 2526 fps | 99.4% |
| Lovex S065 | <<locked>> | 92% | 42,960 psi | 87% | 2513 fps | 95.7% |
| Norma 201 | <<locked>> | 82% | 42,569 psi | 86% | 2493 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 42,714 psi | 87% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 86% | 43,453 psi | 88% | 2559 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 43,395 psi | 88% | 2605 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 86% | 43,207 psi | 88% | 2579 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,375 psi | 72% | 1667 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 43,526 psi | 88% | 2621 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 43,410 psi | 88% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 43,062 psi | 87% | 2625 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,932 psi | 89% | 2641 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 84% | 42,859 psi | 87% | 2490 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 43,410 psi | 88% | 2559 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,960 psi | 87% | 2513 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,930 psi | 85% | 2513 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 43,656 psi | 89% | 2526 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,163 psi | 86% | 2562 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,439 psi | 88% | 2520 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,742 psi | 85% | 2503 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 44,280 psi | 90% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 44,048 psi | 89% | 2457 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 43,642 psi | 89% | 2457 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 43,337 psi | 88% | 2523 fps | 98.3% |
| Somchem S355 | <<locked>> | 90% | 44,454 psi | 90% | 2566 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,135 psi | 90% | 2661 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 44,411 psi | 90% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 42,061 psi | 85% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 43,004 psi | 87% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,424 psi | 86% | 2500 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 42,873 psi | 87% | 2556 fps | 97% |
| Vihtavuori N540 | <<locked>> | 86% | 44,208 psi | 90% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 41,945 psi | 85% | 2556 fps | 96.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,854 psi | 75% | 2530 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 43,482 psi | 88% | 2543 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,947 psi | 89% | 2562 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% | 36,883 psi | 75% | 2392 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,867 psi | 71% | 2379 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 35,331 psi | 72% | 2448 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 40,756 psi | 83% | 2487 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,650 psi | 70% | 2339 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,796 psi | 75% | 2497 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,968 psi | 69% | 2362 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,564 psi | 74% | 2418 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,143 psi | 73% | 2461 fps | 95.2% |
| Alliant Reloder-17 | 39.3 gr | 82% | 31,169 psi | 63% | 2365 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,518 psi | 66% | 2405 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,711 psi | 81% | 2484 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 33,344 psi | 68% | 2362 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,162 psi | 83% | 2516 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 84% | 39,030 psi | 79% | 2464 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 41,060 psi | 83% | 2497 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,922 psi | 63% | 2310 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,840 psi | 75% | 2461 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 53% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,537 psi | 80% | 2451 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 40,393 psi | 82% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,332 psi | 74% | 2372 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 36,550 psi | 74% | 2457 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 37,434 psi | 76% | 2448 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 39,363 psi | 80% | 2467 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,220 psi | 84% | 2431 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,143 psi | 73% | 2379 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 40,393 psi | 82% | 2464 fps | 95% |
| Norma 201 | <<locked>> | 80% | 39,958 psi | 81% | 2444 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 40,059 psi | 81% | 2457 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,984 psi | 73% | 2408 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 35,853 psi | 73% | 2448 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,360 psi | 72% | 2415 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 54% | 1490 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,855 psi | 77% | 2510 fps | 96.7% |
| ReloadSwiss RS 60 | 38.4 gr | 80% | 31,241 psi | 63% | 2379 fps | 97.7% |
| ReloadSwiss RS 62 | 44.1 gr | 92% | 37,695 psi | 76% | 2516 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,031 psi | 83% | 2582 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 38,072 psi | 77% | 2398 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,372 psi | 64% | 2306 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,393 psi | 82% | 2464 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,363 psi | 80% | 2467 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,143 psi | 73% | 2379 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,474 psi | 66% | 2352 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,538 psi | 82% | 2464 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,262 psi | 80% | 2454 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,495 psi | 84% | 2408 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,229 psi | 69% | 2280 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,017 psi | 83% | 2411 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,437 psi | 82% | 2470 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 32,430 psi | 66% | 2316 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 28,224 psi | 57% | 2293 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 41,669 psi | 85% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,115 psi | 75% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,898 psi | 77% | 2395 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,748 psi | 62% | 2260 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 37,739 psi | 77% | 2454 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 36,463 psi | 74% | 2382 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,999 psi | 75% | 2457 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 34,563 psi | 70% | 2477 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,212 psi | 63% | 2280 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,522 psi | 78% | 2457 fps | 98% |
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 62 powders for 7 x 57 R loaded with the .284 | 148gr | TWENTY-NINE ERTP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,661 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,661 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 148.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 148gr | TWENTY-NINE ERTP 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.