Load Specifications
Load data in caliber 7 x 57 R with .284 | 161gr | SUS-TAC LRT bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-17.
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>> | 84% | 43,511 psi | 88% | 2385 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,497 psi | 88% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 41,771 psi | 85% | 2464 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 82% | 44,614 psi | 90% | 2441 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 86% | 42,743 psi | 87% | 2395 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 43,308 psi | 88% | 2526 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,221 psi | 86% | 2415 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,888 psi | 87% | 2431 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 44,425 psi | 90% | 2526 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 44,556 psi | 90% | 2556 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,636 psi | 72% | 2379 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,407 psi | 80% | 2513 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,555 psi | 88% | 2444 fps | 98.2% |
| Bofors RP3 | <<locked>> | 86% | 41,858 psi | 85% | 2421 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 86% | 43,207 psi | 88% | 2431 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 43,569 psi | 88% | 2467 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 43,468 psi | 88% | 2474 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 71% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,294 psi | 88% | 2408 fps | 99.2% |
| IMR 3031 | <<locked>> | 82% | 44,454 psi | 90% | 2448 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,395 psi | 86% | 2382 fps | 98.4% |
| IMR 4831 | <<locked>> | 96% | 42,873 psi | 87% | 2467 fps | 98% |
| IMR 4895 | <<locked>> | 84% | 43,903 psi | 89% | 2461 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 82% | 43,482 psi | 88% | 2421 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 42,235 psi | 86% | 2385 fps | 99.5% |
| Lovex S065 | <<locked>> | 92% | 44,063 psi | 89% | 2421 fps | 96.8% |
| Norma 201 | <<locked>> | 82% | 43,656 psi | 89% | 2395 fps | 99.7% |
| Norma 202 | <<locked>> | 82% | 43,903 psi | 89% | 2405 fps | 100% |
| Norma 203B | <<locked>> | 84% | 42,206 psi | 86% | 2421 fps | 98.8% |
| Norma URP | <<locked>> | 94% | 42,061 psi | 85% | 2464 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 86% | 44,498 psi | 90% | 2484 fps | 99% |
| Ramshot Hunter | <<locked>> | 96% | 43,961 psi | 89% | 2503 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,708 psi | 72% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,758 psi | 89% | 2415 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,018 psi | 85% | 2477 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 44,541 psi | 90% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 44,396 psi | 90% | 2533 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,047 psi | 85% | 2497 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 44,034 psi | 89% | 2395 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 42,061 psi | 85% | 2418 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,063 psi | 89% | 2421 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 43,482 psi | 88% | 2421 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 42,235 psi | 86% | 2385 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 43,395 psi | 88% | 2470 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,120 psi | 87% | 2415 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,424 psi | 86% | 2316 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 44,367 psi | 90% | 2425 fps | 99% |
| Somchem S355 | <<locked>> | 88% | 42,975 psi | 87% | 2421 fps | 99.2% |
| Somchem S365 | <<locked>> | 98% | 42,743 psi | 87% | 2520 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 84% | 43,598 psi | 88% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 44,367 psi | 90% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 43,830 psi | 89% | 2408 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 94% | 44,005 psi | 89% | 2461 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 42,699 psi | 87% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 43,178 psi | 88% | 2467 fps | 97.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,261 psi | 78% | 2448 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 44,570 psi | 90% | 2451 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,821 psi | 65% | 2359 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,250 psi | 86% | 2415 fps | 99.2% |
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% | 37,956 psi | 77% | 2297 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,926 psi | 73% | 2287 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,069 psi | 69% | 2313 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 41,829 psi | 85% | 2392 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 35,694 psi | 72% | 2257 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,782 psi | 77% | 2411 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,911 psi | 71% | 2274 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,623 psi | 76% | 2329 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,896 psi | 71% | 2326 fps | 95.6% |
| Alliant Reloder-17 | 36.8 gr | 80% | 30,095 psi | 61% | 2238 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,747 psi | 60% | 2231 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,651 psi | 74% | 2451 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,857 psi | 83% | 2395 fps | 97.6% |
| Bofors RP3 | <<locked>> | 80% | 34,447 psi | 70% | 2280 fps | 98% |
| Hodgdon H380 | <<locked>> | 80% | 35,476 psi | 72% | 2280 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,994 psi | 61% | 2185 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,101 psi | 77% | 2375 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,107 psi | 53% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,553 psi | 82% | 2359 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 41,466 psi | 84% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,434 psi | 76% | 2287 fps | 97.3% |
| IMR 4831 | <<locked>> | 88% | 33,286 psi | 68% | 2280 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 38,508 psi | 78% | 2359 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 40,669 psi | 82% | 2375 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 37,072 psi | 75% | 2290 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 39,088 psi | 79% | 2329 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 40,901 psi | 83% | 2349 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 41,089 psi | 83% | 2359 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,985 psi | 75% | 2323 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 34,751 psi | 70% | 2316 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,405 psi | 74% | 2333 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 94% | 41,278 psi | 84% | 2454 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 54% | 1414 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 40,799 psi | 83% | 2359 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,943 psi | 79% | 2418 fps | 97.7% |
| ReloadSwiss RS 60 | 36.8 gr | 80% | 32,053 psi | 65% | 2300 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,434 psi | 74% | 2382 fps | 95.8% |
| ReloadSwiss RS 70 | 43 gr | 92% | 39,494 psi | 80% | 2444 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 38,928 psi | 79% | 2303 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 32,358 psi | 66% | 2224 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,088 psi | 79% | 2329 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,669 psi | 82% | 2375 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,072 psi | 75% | 2290 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,272 psi | 67% | 2267 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,147 psi | 81% | 2362 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,201 psi | 71% | 2192 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,655 psi | 84% | 2379 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 33,286 psi | 68% | 2231 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 25,730 psi | 52% | 2123 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 38,290 psi | 78% | 2293 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,914 psi | 79% | 2300 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,618 psi | 64% | 2178 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 34,040 psi | 69% | 2267 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 37,550 psi | 76% | 2293 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 35,810 psi | 73% | 2323 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 94% | 31,546 psi | 64% | 2300 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,095 psi | 61% | 2156 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,878 psi | 61% | 2300 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,595 psi | 80% | 2365 fps | 98.7% |
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 | 161gr | SUS-TAC LRT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,559 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,559 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 61–90 %, leaving at least 10 % headroom. The 161.0 gr projectile in 0.284" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-23 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, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 x 57 R with the .284 | 161gr | SUS-TAC LRT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 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.