Load Specifications
Load data in caliber 7 x 57 R with .284 | 160gr | Brenneke TAG bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 43,265 psi | 88% | 2428 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,030 psi | 81% | 2464 fps | 96.1% |
| Accurate 4064 | <<locked>> | 84% | 43,787 psi | 89% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,685 psi | 87% | 2526 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 84% | 42,801 psi | 87% | 2448 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,497 psi | 88% | 2585 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,627 psi | 86% | 2470 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,989 psi | 87% | 2484 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,438 psi | 86% | 2543 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,380 psi | 86% | 2569 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,450 psi | 78% | 2493 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,931 psi | 87% | 2644 fps | 98.3% |
| Bofors RP3 | <<locked>> | 84% | 42,279 psi | 86% | 2477 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 43,134 psi | 87% | 2480 fps | 98% |
| Hodgdon H414 | <<locked>> | 90% | 42,830 psi | 87% | 2530 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 44,251 psi | 90% | 2530 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,758 psi | 89% | 2526 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 72% | 1594 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,337 psi | 86% | 2431 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 43,874 psi | 89% | 2533 fps | 98.7% |
| IMR 4895 | <<locked>> | 82% | 44,034 psi | 89% | 2513 fps | 99.5% |
| Lovex S062 | <<locked>> | 82% | 42,163 psi | 86% | 2434 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 44,237 psi | 90% | 2480 fps | 97.5% |
| Lovex S070 | <<locked>> | 90% | 42,090 psi | 85% | 2457 fps | 95.8% |
| Norma 203B | <<locked>> | 82% | 42,308 psi | 86% | 2474 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 42,699 psi | 87% | 2526 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 82% | 42,061 psi | 85% | 2490 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 92% | 41,858 psi | 85% | 2516 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,969 psi | 73% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,743 psi | 89% | 2470 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,989 psi | 85% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,670 psi | 87% | 2552 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,496 psi | 86% | 2566 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 43,859 psi | 89% | 2444 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 42,482 psi | 86% | 2474 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,237 psi | 90% | 2480 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 42,163 psi | 86% | 2434 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 42,090 psi | 85% | 2457 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,947 psi | 89% | 2530 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,322 psi | 86% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,801 psi | 89% | 2428 fps | 96% |
| Somchem S355 | <<locked>> | 86% | 43,105 psi | 87% | 2474 fps | 99.5% |
| Somchem S365 | <<locked>> | 96% | 43,613 psi | 88% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,613 psi | 88% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 44,222 psi | 90% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 43,990 psi | 89% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 41,829 psi | 85% | 2474 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 42,569 psi | 86% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 44,034 psi | 89% | 2530 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,032 psi | 85% | 2562 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,989 psi | 85% | 2461 fps | 99.6% |
| Winchester 760 | <<locked>> | 90% | 42,830 psi | 87% | 2530 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,389 psi | 70% | 2497 fps | 98.9% |
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% | 40,582 psi | 82% | 2385 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 37,246 psi | 76% | 2408 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,435 psi | 78% | 2382 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,111 psi | 65% | 2313 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,942 psi | 77% | 2356 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,379 psi | 82% | 2523 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,463 psi | 76% | 2375 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,176 psi | 81% | 2431 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,953 psi | 67% | 2333 fps | 95.7% |
| Alliant Reloder-17 | 40.7 gr | 80% | 32,184 psi | 65% | 2343 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,195 psi | 57% | 2238 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,737 psi | 70% | 2464 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 36,796 psi | 75% | 2372 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 80% | 37,652 psi | 76% | 2375 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 40,059 psi | 81% | 2474 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,210 psi | 57% | 2188 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,886 psi | 83% | 2474 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 54% | 1427 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,813 psi | 81% | 2385 fps | 98.4% |
| IMR 4831 | <<locked>> | 84% | 31,444 psi | 64% | 2280 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,176 psi | 84% | 2461 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,392 psi | 80% | 2382 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 36,796 psi | 75% | 2333 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 39,421 psi | 80% | 2405 fps | 95% |
| Norma 203B | <<locked>> | 80% | 39,537 psi | 80% | 2421 fps | 98.7% |
| Norma URP | <<locked>> | 84% | 32,837 psi | 67% | 2320 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,059 psi | 79% | 2431 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 39,189 psi | 79% | 2464 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,556 psi | 54% | 1457 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,363 psi | 78% | 2365 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,301 psi | 70% | 2405 fps | 99.7% |
| ReloadSwiss RS 62 | 43.7 gr | 86% | 34,461 psi | 70% | 2385 fps | 95.8% |
| ReloadSwiss RS 70 | 45.5 gr | 88% | 37,217 psi | 75% | 2451 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 41,278 psi | 84% | 2398 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,679 psi | 70% | 2323 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,796 psi | 75% | 2333 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 39,392 psi | 80% | 2382 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 39,421 psi | 80% | 2405 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,853 psi | 73% | 2372 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,376 psi | 76% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,205 psi | 84% | 2382 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 35,665 psi | 72% | 2329 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 25,643 psi | 52% | 2169 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 40,930 psi | 83% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,597 psi | 84% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,866 psi | 69% | 2270 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 32,184 psi | 65% | 2274 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,813 psi | 81% | 2379 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,634 psi | 68% | 2323 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 30,211 psi | 61% | 2310 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,037 psi | 61% | 2205 fps | 96.5% |
| Winchester 760 | <<locked>> | 88% | 40,059 psi | 81% | 2474 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,253 psi | 57% | 2310 fps | 95.6% |
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 53 powders for 7 x 57 R loaded with the .284 | 160gr | Brenneke TAG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,644 fps. Accurate 3100 gives the best case fill at 100 %, and 53 of the 53 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 160.0 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 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 160gr | Brenneke TAG 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.