Load Specifications
Load data in caliber 7 x 57 with .284 | 174gr | Prvi Partizan PSP BT bullet and 85 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 60.
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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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% | 51,082 psi | 90% | 2418 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,559 psi | 88% | 2418 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,512 psi | 79% | 2438 fps | 98.1% |
| Accurate 4064 | <<locked>> | 86% | 51,140 psi | 90% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,415 psi | 89% | 2543 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 51,111 psi | 90% | 2487 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 49,052 psi | 87% | 2444 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 48,965 psi | 87% | 2523 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 50,401 psi | 89% | 2592 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,023 psi | 87% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,327 psi | 87% | 2480 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,834 psi | 86% | 2549 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,139 psi | 87% | 2572 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,111 psi | 90% | 2566 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,337 psi | 75% | 2464 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,304 psi | 66% | 2379 fps | 96.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,384 psi | 84% | 2621 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 50,604 psi | 89% | 2500 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 49,226 psi | 87% | 2477 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,472 psi | 87% | 2454 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 86% | 50,096 psi | 89% | 2490 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 49,734 psi | 88% | 2539 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 90% | 50,502 psi | 89% | 2507 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,457 psi | 86% | 2484 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 50,836 psi | 90% | 2523 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,734 psi | 88% | 2569 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 64% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,545 psi | 88% | 2451 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,675 psi | 86% | 2431 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 51,111 psi | 90% | 2454 fps | 98.3% |
| IMR 4350 | <<locked>> | 94% | 49,835 psi | 88% | 2484 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,356 psi | 85% | 2438 fps | 97.8% |
| IMR 4831 | <<locked>> | 94% | 47,877 psi | 85% | 2490 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 50,575 psi | 89% | 2507 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 50,821 psi | 90% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 50,517 psi | 89% | 2418 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 48,370 psi | 86% | 2425 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 50,778 psi | 90% | 2480 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 48,602 psi | 86% | 2467 fps | 98.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,072 psi | 66% | 2306 fps | 96.2% |
| Norma 201 | <<locked>> | 82% | 49,864 psi | 88% | 2434 fps | 100% |
| Norma 202 | <<locked>> | 82% | 50,314 psi | 89% | 2434 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,631 psi | 86% | 2467 fps | 100% |
| Norma 204 | <<locked>> | 94% | 49,893 psi | 88% | 2523 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 47,224 psi | 83% | 2582 fps | 97.7% |
| Norma URP | <<locked>> | 94% | 50,009 psi | 88% | 2536 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 48,936 psi | 87% | 2493 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 48,530 psi | 86% | 2530 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,492 psi | 65% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 50,401 psi | 89% | 2477 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,748 psi | 88% | 2539 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,965 psi | 87% | 2569 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 50,198 psi | 89% | 2566 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,501 psi | 88% | 2589 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 50,560 psi | 89% | 2438 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,400 psi | 87% | 2474 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,111 psi | 89% | 2549 fps | 97% |
| Rottweil R 907 | <<locked>> | 90% | 49,472 psi | 87% | 2454 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 50,778 psi | 90% | 2480 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 50,821 psi | 90% | 2464 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 48,370 psi | 86% | 2425 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,602 psi | 86% | 2467 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 50,676 psi | 90% | 2526 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,530 psi | 88% | 2461 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,039 psi | 90% | 2375 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,631 psi | 86% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,763 psi | 90% | 2438 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,617 psi | 88% | 2546 fps | 96.9% |
| Somchem S335 | <<locked>> | 82% | 50,647 psi | 90% | 2379 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 49,676 psi | 88% | 2470 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 48,153 psi | 85% | 2539 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,560 psi | 89% | 2530 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 84% | 50,285 psi | 89% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 50,923 psi | 90% | 2418 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 51,039 psi | 90% | 2454 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,878 psi | 86% | 2484 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,671 psi | 77% | 2405 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 84% | 49,023 psi | 87% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,053 psi | 90% | 2536 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,920 psi | 83% | 2533 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,312 psi | 85% | 2457 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 50,096 psi | 89% | 2546 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,898 psi | 67% | 2493 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,095 psi | 87% | 2467 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,514 psi | 84% | 2470 fps | 96% |
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% | 44,846 psi | 79% | 2333 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,526 psi | 77% | 2320 fps | 96% |
| Accurate 3100 | <<locked>> | 92% | 34,084 psi | 60% | 2247 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,424 psi | 75% | 2336 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,343 psi | 55% | 2195 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,863 psi | 85% | 2438 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,828 psi | 72% | 2310 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 46,093 psi | 81% | 2477 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,830 psi | 77% | 2484 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,712 psi | 72% | 2329 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,526 psi | 77% | 2388 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,575 psi | 56% | 2205 fps | 96.2% |
| Alliant Reloder-17 | 40.3 gr | 80% | 35,215 psi | 62% | 2320 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,121 psi | 80% | 2464 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,962 psi | 46% | 2083 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,012 psi | 62% | 2326 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,227 psi | 55% | 2280 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,137 psi | 83% | 2448 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 40,422 psi | 71% | 2336 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,162 psi | 73% | 2313 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 41,336 psi | 73% | 2343 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 38,305 psi | 68% | 2339 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 84% | 41,814 psi | 74% | 2359 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,167 psi | 52% | 2119 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,483 psi | 79% | 2428 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,263 psi | 71% | 2402 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 47% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,383 psi | 82% | 2405 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,859 psi | 76% | 2336 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,223 psi | 80% | 2359 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 41,321 psi | 73% | 2339 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,869 psi | 67% | 2251 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,589 psi | 54% | 2162 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 44,628 psi | 79% | 2411 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 47,514 psi | 84% | 2418 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,703 psi | 84% | 2379 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,975 psi | 76% | 2339 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,331 psi | 62% | 2205 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,942 psi | 67% | 2277 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 34,780 psi | 61% | 2260 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 47,007 psi | 83% | 2392 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,413 psi | 84% | 2395 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,917 psi | 76% | 2375 fps | 99.7% |
| Norma 204 | <<locked>> | 92% | 46,673 psi | 83% | 2470 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 38,682 psi | 68% | 2418 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,691 psi | 56% | 2195 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 42,554 psi | 75% | 2392 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,215 psi | 62% | 2283 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 48% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,553 psi | 73% | 2329 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,398 psi | 82% | 2487 fps | 99.8% |
| ReloadSwiss RS 60 | 40.3 gr | 80% | 37,434 psi | 66% | 2372 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,154 psi | 55% | 2211 fps | 95.6% |
| ReloadSwiss RS 70 | 41.9 gr | 82% | 32,982 psi | 58% | 2257 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 44,628 psi | 79% | 2349 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,159 psi | 67% | 2287 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 96% | 43,976 psi | 78% | 2451 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 41,162 psi | 73% | 2313 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,331 psi | 62% | 2205 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,514 psi | 84% | 2418 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,975 psi | 76% | 2339 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,942 psi | 67% | 2277 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,160 psi | 69% | 2336 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,470 psi | 82% | 2415 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,022 psi | 85% | 2336 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,234 psi | 71% | 2221 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,146 psi | 69% | 2247 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,569 psi | 77% | 2444 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 47,819 psi | 85% | 2339 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,885 psi | 69% | 2290 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 28,413 psi | 50% | 2156 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 39,247 psi | 69% | 2339 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 44,440 psi | 79% | 2323 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,889 psi | 79% | 2336 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,956 psi | 65% | 2231 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,967 psi | 58% | 2195 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 41,118 psi | 73% | 2362 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 43,366 psi | 77% | 2333 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,619 psi | 58% | 2201 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 27,949 psi | 49% | 2152 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,518 psi | 57% | 2172 fps | 98.3% |
| Winchester 760 | <<locked>> | 84% | 38,305 psi | 68% | 2339 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,759 psi | 46% | 2146 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,963 psi | 81% | 2418 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,324 psi | 78% | 2418 fps | 95.1% |
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 85 powders for 7 x 57 loaded with the .284 | 174gr | Prvi Partizan PSP BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,621 fps. Accurate 3100 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 x 57 with the .284 | 174gr | Prvi Partizan PSP BT 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.