Load Specifications
Load data in caliber 7 mm Exp. Rem. with .285 | 173gr | Prvi Partizan SP bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 52,315 psi | 89% | 2487 fps | 98.3% |
| Accurate 3100 | <<locked>> | 98% | 49,806 psi | 85% | 2530 fps | 99.2% |
| Accurate 4064 | <<locked>> | 82% | 51,634 psi | 88% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 52,098 psi | 89% | 2575 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 51,967 psi | 88% | 2507 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,968 psi | 90% | 2612 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,576 psi | 90% | 2530 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,634 psi | 90% | 2543 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,736 psi | 90% | 2621 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,328 psi | 86% | 2595 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,330 psi | 89% | 2602 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,881 psi | 90% | 2651 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,995 psi | 85% | 2592 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,555 psi | 74% | 2523 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,127 psi | 90% | 2717 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,530 psi | 83% | 2582 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 53,040 psi | 90% | 2539 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,881 psi | 90% | 2651 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 52,562 psi | 89% | 2523 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 50,140 psi | 85% | 2507 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 88% | 50,676 psi | 86% | 2566 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 86% | 50,850 psi | 87% | 2533 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,806 psi | 85% | 2513 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 50,125 psi | 85% | 2592 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 62% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,387 psi | 87% | 2490 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,357 psi | 86% | 2510 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,198 psi | 87% | 2507 fps | 98.6% |
| IMR 4831 | <<locked>> | 92% | 52,388 psi | 89% | 2566 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,620 psi | 90% | 2546 fps | 95.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,416 psi | 88% | 2625 fps | 96.2% |
| Lovex S062 | <<locked>> | 82% | 51,576 psi | 88% | 2484 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 51,184 psi | 87% | 2503 fps | 99.5% |
| Lovex S070 | <<locked>> | 90% | 52,228 psi | 89% | 2539 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,324 psi | 75% | 2441 fps | 98.3% |
| Norma 203B | <<locked>> | 82% | 51,938 psi | 88% | 2533 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,633 psi | 86% | 2552 fps | 97.1% |
| Norma MRP | <<locked>> | 98% | 52,243 psi | 89% | 2674 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 50,879 psi | 87% | 2559 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 52,533 psi | 89% | 2556 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,692 psi | 88% | 2641 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 92% | 52,968 psi | 90% | 2608 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,905 psi | 78% | 2523 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,159 psi | 63% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,299 psi | 86% | 2493 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,792 psi | 85% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,605 psi | 88% | 2592 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,183 psi | 85% | 2615 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,395 psi | 72% | 2539 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 49,893 psi | 85% | 2490 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,242 psi | 87% | 2533 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 96% | 51,561 psi | 88% | 2589 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 88% | 52,562 psi | 89% | 2523 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,184 psi | 87% | 2503 fps | 99.5% |
| Shooters World Precision | <<locked>> | 82% | 51,576 psi | 88% | 2484 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,228 psi | 89% | 2539 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,430 psi | 88% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,213 psi | 87% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,763 psi | 86% | 2461 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,097 psi | 87% | 2582 fps | 97.6% |
| Somchem S355 | <<locked>> | 84% | 50,067 psi | 85% | 2487 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 50,024 psi | 85% | 2566 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 51,967 psi | 88% | 2562 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 51,111 psi | 87% | 2467 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,069 psi | 90% | 2556 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,329 psi | 87% | 2546 fps | 98% |
| Vihtavuori N540 | <<locked>> | 82% | 52,098 psi | 89% | 2470 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,953 psi | 88% | 2559 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,373 psi | 89% | 2615 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,678 psi | 90% | 2661 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,156 psi | 89% | 2526 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,952 psi | 87% | 2572 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,092 psi | 77% | 2644 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,953 psi | 88% | 2559 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 48,892 psi | 83% | 2434 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 33,098 psi | 56% | 2221 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,747 psi | 83% | 2438 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,927 psi | 63% | 2313 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 45,832 psi | 78% | 2411 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,642 psi | 74% | 2451 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,340 psi | 79% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,429 psi | 84% | 2493 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,187 psi | 62% | 2323 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,857 psi | 70% | 2438 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,323 psi | 74% | 2448 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,265 psi | 74% | 2487 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,542 psi | 45% | 2100 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,924 psi | 58% | 2310 fps | 95.8% |
| Alliant Reloder-26 | 49.9 gr | 84% | 32,227 psi | 55% | 2306 fps | 96% |
| Bofors RP15 | <<locked>> | 96% | 42,670 psi | 73% | 2477 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,601 psi | 79% | 2444 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,265 psi | 74% | 2487 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,089 psi | 70% | 2329 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 47,036 psi | 80% | 2454 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,972 psi | 66% | 2356 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,887 psi | 71% | 2375 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,707 psi | 57% | 2228 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,695 psi | 64% | 2359 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 46% | 1411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,196 psi | 82% | 2441 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 39,233 psi | 67% | 2313 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,540 psi | 72% | 2359 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,534 psi | 60% | 2270 fps | 97.7% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,443 psi | 84% | 2497 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 48,182 psi | 82% | 2569 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 48,457 psi | 82% | 2438 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,147 psi | 68% | 2313 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 38,203 psi | 65% | 2293 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 34,345 psi | 58% | 2247 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 48,791 psi | 83% | 2484 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,208 psi | 75% | 2444 fps | 95.5% |
| Norma MRP | 50.8 gr | 88% | 37,304 psi | 64% | 2395 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,753 psi | 63% | 2306 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 49,066 psi | 84% | 2507 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,298 psi | 82% | 2585 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 35,708 psi | 61% | 2297 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 39,871 psi | 68% | 2408 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 47% | 1447 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,992 psi | 80% | 2441 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,410 psi | 74% | 2487 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,564 psi | 62% | 2329 fps | 97.7% |
| ReloadSwiss RS 70 | 47.1 gr | 80% | 35,636 psi | 61% | 2333 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,494 psi | 67% | 2474 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 43,845 psi | 75% | 2395 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,066 psi | 82% | 2480 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 42,337 psi | 72% | 2431 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 41,089 psi | 70% | 2329 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,147 psi | 68% | 2313 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 48,457 psi | 82% | 2438 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,203 psi | 65% | 2293 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,092 psi | 77% | 2448 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,252 psi | 77% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,131 psi | 67% | 2260 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,945 psi | 71% | 2425 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 44,396 psi | 76% | 2398 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,344 psi | 57% | 2274 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 40,263 psi | 69% | 2362 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 42,134 psi | 72% | 2329 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,159 psi | 65% | 2306 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,610 psi | 67% | 2346 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,950 psi | 83% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,710 psi | 64% | 2310 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,167 psi | 50% | 2172 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 49,400 psi | 84% | 2608 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,304 psi | 64% | 2283 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,972 psi | 66% | 2356 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,889 psi | 42% | 2119 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,264 psi | 72% | 2398 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 74 powders for 7 mm Exp. Rem. loaded with the .285 | 173gr | Prvi Partizan SP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,717 fps. Alliant Reloder-22 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 173.0 gr projectile in 0.285" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-22, Alliant Reloder-23, Alliant Reloder-25 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 7 mm Exp. Rem. with the .285 | 173gr | Prvi Partizan SP 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.