Load Specifications
Load data in caliber 7 x 57 R with .284 | 135gr | Atomic 29 HP bullet and 60 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% | 44,454 psi | 90% | 2661 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 44,382 psi | 90% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 43,004 psi | 87% | 2733 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 42,859 psi | 87% | 2661 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 88% | 43,990 psi | 89% | 2664 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 82% | 44,570 psi | 90% | 2671 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,469 psi | 90% | 2799 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,410 psi | 88% | 2690 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,874 psi | 89% | 2700 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 43,076 psi | 87% | 2746 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 43,047 psi | 87% | 2776 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,047 psi | 85% | 2661 fps | 96.6% |
| Bofors RP3 | <<locked>> | 88% | 43,004 psi | 87% | 2690 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,714 psi | 89% | 2697 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 88% | 44,295 psi | 90% | 2697 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 43,207 psi | 88% | 2674 fps | 98.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,527 psi | 90% | 2733 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,901 psi | 85% | 2697 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 71% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 44,483 psi | 90% | 2684 fps | 98.6% |
| IMR 3031 | <<locked>> | 82% | 42,569 psi | 86% | 2677 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,540 psi | 88% | 2651 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 44,193 psi | 90% | 2736 fps | 97.1% |
| IMR 4895 | <<locked>> | 84% | 42,047 psi | 85% | 2677 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 82% | 41,800 psi | 85% | 2648 fps | 99.6% |
| Lovex S060 | <<locked>> | 82% | 43,540 psi | 88% | 2608 fps | 98% |
| Lovex S062 | <<locked>> | 86% | 43,279 psi | 88% | 2654 fps | 99% |
| Norma 201 | <<locked>> | 82% | 42,163 psi | 86% | 2621 fps | 98.8% |
| Norma 202 | <<locked>> | 82% | 42,308 psi | 86% | 2631 fps | 99.9% |
| Norma 203B | <<locked>> | 86% | 43,178 psi | 88% | 2690 fps | 98% |
| Norma URP | <<locked>> | 96% | 43,178 psi | 88% | 2733 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 86% | 42,757 psi | 87% | 2703 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 44,382 psi | 90% | 2697 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,360 psi | 72% | 1772 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 43,105 psi | 87% | 2753 fps | 97.4% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 43,004 psi | 87% | 2789 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,685 psi | 87% | 2749 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 84% | 42,743 psi | 87% | 2621 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 90% | 43,120 psi | 87% | 2687 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,800 psi | 85% | 2648 fps | 99.6% |
| Shooters World Precision | <<locked>> | 86% | 43,279 psi | 88% | 2654 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 44,556 psi | 90% | 2743 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,294 psi | 88% | 2648 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 44,382 psi | 90% | 2687 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,845 psi | 89% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,439 psi | 88% | 2582 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 43,308 psi | 88% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,888 psi | 87% | 2648 fps | 97.8% |
| Somchem S355 | <<locked>> | 90% | 43,947 psi | 89% | 2690 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,801 psi | 89% | 2789 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 44,034 psi | 89% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 44,396 psi | 90% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,699 psi | 87% | 2618 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,134 psi | 85% | 2628 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 94% | 42,467 psi | 86% | 2680 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 86% | 43,787 psi | 89% | 2654 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 44,483 psi | 90% | 2733 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 43,076 psi | 87% | 2664 fps | 98.4% |
| Winchester 748 | <<locked>> | 82% | 44,382 psi | 90% | 2717 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,758 psi | 89% | 2694 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% | 36,405 psi | 74% | 2513 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,418 psi | 70% | 2497 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 40,030 psi | 81% | 2674 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 40,393 psi | 82% | 2612 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 36,637 psi | 74% | 2510 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 41,800 psi | 85% | 2628 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 39,073 psi | 79% | 2677 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,518 psi | 68% | 2474 fps | 96.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,260 psi | 74% | 2539 fps | 95.4% |
| Alliant Reloder-16 | 43.8 gr | 92% | 38,145 psi | 77% | 2635 fps | 95.1% |
| Alliant Reloder-17 | 44.1 gr | 86% | 35,433 psi | 72% | 2598 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,175 psi | 79% | 2602 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 32,953 psi | 67% | 2474 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,683 psi | 83% | 2638 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 41,423 psi | 84% | 2641 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 40,741 psi | 83% | 2625 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,590 psi | 66% | 2470 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,521 psi | 74% | 2582 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,049 psi | 53% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,986 psi | 79% | 2572 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 39,943 psi | 81% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,969 psi | 73% | 2490 fps | 95.4% |
| IMR 4831 | <<locked>> | 94% | 38,638 psi | 78% | 2628 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,115 psi | 75% | 2572 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 80% | 39,059 psi | 79% | 2592 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 40,843 psi | 83% | 2552 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 35,781 psi | 73% | 2500 fps | 97.4% |
| Norma 201 | <<locked>> | 80% | 39,508 psi | 80% | 2566 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 39,566 psi | 80% | 2579 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 35,665 psi | 72% | 2526 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 40,393 psi | 82% | 2674 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 34,940 psi | 71% | 2530 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,365 psi | 84% | 2638 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,150 psi | 53% | 1581 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,318 psi | 76% | 2628 fps | 95.7% |
| ReloadSwiss RS 60 | 41 gr | 80% | 30,937 psi | 63% | 2490 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,943 psi | 81% | 2694 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 37,724 psi | 77% | 2520 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 33,098 psi | 67% | 2470 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,059 psi | 79% | 2592 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 35,781 psi | 73% | 2500 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,374 psi | 70% | 2523 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,263 psi | 82% | 2585 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,740 psi | 79% | 2572 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,002 psi | 83% | 2533 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,794 psi | 69% | 2395 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 40,611 psi | 82% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,929 psi | 81% | 2589 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 32,024 psi | 65% | 2428 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 29,704 psi | 60% | 2451 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 41,162 psi | 83% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,593 psi | 74% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,405 psi | 76% | 2513 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 30,284 psi | 61% | 2365 fps | 96% |
| Vihtavuori N160 | <<locked>> | 92% | 39,711 psi | 81% | 2621 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,056 psi | 73% | 2503 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 92% | 39,030 psi | 79% | 2625 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,170 psi | 67% | 2444 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 41,510 psi | 84% | 2661 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,116 psi | 77% | 2579 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 83 powders for 7 x 57 R loaded with the .284 | 135gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,799 fps. Accurate 3100 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 | 135gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-26 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.