Load Specifications
Load data in caliber 7 x 57 R with .284 | 168gr | Nosler AccuBond Long Range bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, 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>> | 82% | 43,874 psi | 89% | 2346 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,103 psi | 81% | 2382 fps | 96.3% |
| Accurate 4064 | <<locked>> | 84% | 44,150 psi | 90% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,931 psi | 87% | 2448 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 84% | 42,931 psi | 87% | 2362 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,178 psi | 88% | 2487 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,641 psi | 86% | 2385 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,931 psi | 87% | 2395 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,351 psi | 86% | 2454 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,206 psi | 86% | 2477 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,551 psi | 78% | 2411 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,859 psi | 87% | 2556 fps | 98.4% |
| Bofors RP3 | <<locked>> | 84% | 42,308 psi | 86% | 2388 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 43,149 psi | 88% | 2395 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 90% | 42,656 psi | 87% | 2438 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 44,048 psi | 89% | 2438 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,845 psi | 89% | 2441 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,563 psi | 72% | 1532 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,337 psi | 86% | 2346 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 43,845 psi | 89% | 2448 fps | 98.8% |
| IMR 4895 | <<locked>> | 82% | 43,961 psi | 89% | 2421 fps | 99.5% |
| Lovex S062 | <<locked>> | 82% | 42,293 psi | 86% | 2349 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 44,483 psi | 90% | 2395 fps | 97.6% |
| Lovex S070 | <<locked>> | 90% | 42,105 psi | 85% | 2372 fps | 95.9% |
| Norma 203B | <<locked>> | 82% | 42,279 psi | 86% | 2385 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 42,699 psi | 87% | 2438 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 82% | 41,771 psi | 85% | 2398 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 94% | 44,295 psi | 90% | 2477 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 73% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,845 psi | 89% | 2385 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,916 psi | 85% | 2477 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,206 psi | 86% | 2457 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,511 psi | 86% | 2477 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 82% | 44,367 psi | 90% | 2362 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 42,540 psi | 86% | 2388 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,483 psi | 90% | 2395 fps | 97.6% |
| Shooters World Precision | <<locked>> | 82% | 42,293 psi | 86% | 2349 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 42,105 psi | 85% | 2372 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,700 psi | 89% | 2438 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,308 psi | 86% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,859 psi | 89% | 2343 fps | 96.1% |
| Somchem S355 | <<locked>> | 86% | 43,337 psi | 88% | 2388 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 43,381 psi | 88% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,816 psi | 89% | 2339 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 44,353 psi | 90% | 2349 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 44,063 psi | 89% | 2372 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 41,785 psi | 85% | 2388 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 42,656 psi | 87% | 2346 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 44,034 psi | 89% | 2444 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,090 psi | 85% | 2480 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 44,585 psi | 90% | 2418 fps | 99.8% |
| Winchester 760 | <<locked>> | 90% | 42,975 psi | 87% | 2444 fps | 96% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,548 psi | 70% | 2415 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% | 41,089 psi | 83% | 2303 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 37,463 psi | 76% | 2333 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 38,870 psi | 79% | 2300 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,474 psi | 66% | 2241 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,826 psi | 77% | 2267 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,553 psi | 82% | 2438 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,550 psi | 76% | 2290 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,306 psi | 82% | 2346 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,011 psi | 67% | 2254 fps | 95.9% |
| Alliant Reloder-17 | 38.1 gr | 80% | 32,387 psi | 66% | 2267 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,587 psi | 58% | 2172 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,940 psi | 71% | 2385 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 37,159 psi | 75% | 2297 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 38,000 psi | 77% | 2297 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 88% | 40,059 psi | 81% | 2388 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,500 psi | 58% | 2116 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,872 psi | 83% | 2388 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 54% | 1362 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,726 psi | 81% | 2297 fps | 98.5% |
| IMR 4831 | <<locked>> | 84% | 31,705 psi | 64% | 2208 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 41,263 psi | 84% | 2375 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,711 psi | 81% | 2303 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 36,956 psi | 75% | 2254 fps | 95.6% |
| Lovex S070 | <<locked>> | 88% | 39,610 psi | 80% | 2326 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 39,668 psi | 80% | 2336 fps | 98.9% |
| Norma URP | <<locked>> | 84% | 32,996 psi | 67% | 2244 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,189 psi | 79% | 2352 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 39,189 psi | 79% | 2379 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 55% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,508 psi | 78% | 2283 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,490 psi | 70% | 2326 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,213 psi | 65% | 2254 fps | 95.1% |
| ReloadSwiss RS 70 | 41.6 gr | 86% | 34,853 psi | 71% | 2313 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 41,626 psi | 84% | 2316 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,954 psi | 71% | 2247 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,956 psi | 75% | 2254 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 39,711 psi | 81% | 2303 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 39,610 psi | 80% | 2326 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,897 psi | 73% | 2293 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,434 psi | 76% | 2195 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,118 psi | 83% | 2297 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 35,824 psi | 73% | 2251 fps | 98.4% |
| Somchem S365 | 36.1 gr | 80% | 26,005 psi | 53% | 2103 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 80% | 41,031 psi | 83% | 2297 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,597 psi | 84% | 2306 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,055 psi | 69% | 2195 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 32,300 psi | 66% | 2198 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 40,118 psi | 81% | 2300 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,794 psi | 69% | 2244 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 30,371 psi | 62% | 2234 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,211 psi | 61% | 2133 fps | 96.7% |
| Winchester 760 | <<locked>> | 88% | 40,059 psi | 81% | 2388 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,398 psi | 58% | 2238 fps | 95.9% |
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 53 powders for 7 x 57 R loaded with the .284 | 168gr | Nosler AccuBond Long Range. Alliant Reloder-26 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,556 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 168.0 gr projectile in 0.284" calls for a 1:9.5 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. Somchem S365, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 x 57 R with the .284 | 168gr | Nosler AccuBond Long Range 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.