Load Specifications
Load data in caliber 7 mm Exp. Rem. with .284 | 158gr | Prvi Partizan Grom bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Somchem S365.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 49,821 psi | 85% | 2523 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 51,576 psi | 88% | 2572 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,500 psi | 81% | 2595 fps | 98% |
| Accurate 4064 | <<locked>> | 84% | 50,241 psi | 86% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 49,821 psi | 85% | 2648 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 82% | 53,011 psi | 90% | 2641 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 50,923 psi | 87% | 2595 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 51,387 psi | 87% | 2680 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 52,895 psi | 90% | 2756 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 51,271 psi | 87% | 2680 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 51,213 psi | 87% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 51,561 psi | 88% | 2638 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 51,097 psi | 87% | 2707 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 51,837 psi | 88% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,546 psi | 86% | 2671 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,701 psi | 76% | 2618 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,276 psi | 67% | 2523 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,821 psi | 87% | 2792 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 52,721 psi | 90% | 2654 fps | 99.7% |
| Bofors RP3 | <<locked>> | 86% | 51,735 psi | 88% | 2635 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 51,764 psi | 88% | 2612 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 86% | 52,359 psi | 89% | 2644 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 92% | 52,301 psi | 89% | 2697 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 90% | 52,808 psi | 90% | 2664 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 51,039 psi | 87% | 2641 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,922 psi | 85% | 2631 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 52,475 psi | 89% | 2730 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,071 psi | 61% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,430 psi | 88% | 2605 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 50,560 psi | 86% | 2582 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,982 psi | 90% | 2608 fps | 98.1% |
| IMR 4350 | <<locked>> | 94% | 51,982 psi | 88% | 2635 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 50,198 psi | 85% | 2589 fps | 97.5% |
| IMR 4831 | <<locked>> | 94% | 50,618 psi | 86% | 2648 fps | 99.6% |
| IMR 4895 | <<locked>> | 84% | 52,910 psi | 90% | 2664 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 52,315 psi | 89% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 50,618 psi | 86% | 2579 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 50,009 psi | 85% | 2589 fps | 98.6% |
| Lovex S070 | <<locked>> | 92% | 50,879 psi | 87% | 2618 fps | 97.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,349 psi | 67% | 2448 fps | 95.9% |
| Norma 201 | <<locked>> | 82% | 51,793 psi | 88% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 82% | 52,518 psi | 89% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 84% | 50,865 psi | 87% | 2625 fps | 99.9% |
| Norma 204 | <<locked>> | 94% | 52,533 psi | 89% | 2680 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 49,995 psi | 85% | 2740 fps | 97.6% |
| Norma URP | <<locked>> | 94% | 52,547 psi | 89% | 2694 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 51,271 psi | 87% | 2648 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 51,213 psi | 87% | 2687 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 62% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,562 psi | 89% | 2631 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,156 psi | 89% | 2697 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 51,590 psi | 88% | 2733 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 49,559 psi | 84% | 2671 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 52,272 psi | 89% | 2749 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 84% | 52,620 psi | 90% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 51,924 psi | 88% | 2631 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,968 psi | 90% | 2710 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 90% | 51,764 psi | 88% | 2612 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 50,009 psi | 85% | 2589 fps | 98.6% |
| Shooters World Precision | <<locked>> | 84% | 50,618 psi | 86% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,879 psi | 87% | 2618 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,864 psi | 85% | 2631 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 51,561 psi | 88% | 2615 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,026 psi | 90% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 50,227 psi | 86% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 52,765 psi | 90% | 2589 fps | 98% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,475 psi | 89% | 2707 fps | 96.7% |
| Somchem S335 | <<locked>> | 82% | 52,475 psi | 89% | 2530 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 51,938 psi | 88% | 2625 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 50,908 psi | 87% | 2694 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 50,285 psi | 86% | 2638 fps | 97% |
| Vihtavuori N135 | <<locked>> | 84% | 52,504 psi | 89% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 52,997 psi | 90% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 53,142 psi | 90% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 51,184 psi | 87% | 2638 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 84% | 51,198 psi | 87% | 2569 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 50,343 psi | 86% | 2638 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,835 psi | 85% | 2690 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,778 psi | 86% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 52,620 psi | 90% | 2703 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,306 psi | 69% | 2648 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 51,242 psi | 87% | 2618 fps | 100% |
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 2495 | <<locked>> | 80% | 46,891 psi | 80% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,208 psi | 77% | 2467 fps | 95.6% |
| Accurate 3100 | <<locked>> | 94% | 38,595 psi | 66% | 2434 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,367 psi | 76% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,040 psi | 56% | 2323 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,734 psi | 85% | 2589 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,482 psi | 72% | 2451 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 48,095 psi | 82% | 2625 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,064 psi | 78% | 2641 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 48,051 psi | 82% | 2625 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,424 psi | 72% | 2470 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,353 psi | 77% | 2533 fps | 99.3% |
| Alliant Reloder-16 | 42.3 gr | 80% | 32,982 psi | 56% | 2336 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,014 psi | 63% | 2457 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 47,398 psi | 81% | 2615 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,921 psi | 49% | 2254 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,869 psi | 63% | 2464 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,447 psi | 60% | 2480 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,240 psi | 84% | 2602 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 42,438 psi | 72% | 2480 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 42,989 psi | 73% | 2457 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 43,105 psi | 73% | 2487 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 40,263 psi | 69% | 2480 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 86% | 46,499 psi | 79% | 2556 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,429 psi | 52% | 2241 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,789 psi | 80% | 2582 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 42,395 psi | 72% | 2549 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 46% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,225 psi | 82% | 2556 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 44,657 psi | 76% | 2484 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,992 psi | 80% | 2507 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 43,265 psi | 74% | 2484 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,800 psi | 71% | 2434 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,981 psi | 54% | 2283 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 46,514 psi | 79% | 2559 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 49,124 psi | 84% | 2523 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,498 psi | 76% | 2480 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,796 psi | 63% | 2339 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 39,653 psi | 68% | 2415 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 36,956 psi | 63% | 2398 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,849 psi | 83% | 2543 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,211 psi | 84% | 2543 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,730 psi | 76% | 2520 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 49,168 psi | 84% | 2625 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 43,787 psi | 75% | 2625 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,344 psi | 57% | 2329 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 44,788 psi | 76% | 2543 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 39,334 psi | 67% | 2470 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,311 psi | 46% | 1499 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,250 psi | 74% | 2470 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,472 psi | 83% | 2638 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,349 psi | 67% | 2516 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,750 psi | 56% | 2339 fps | 95% |
| ReloadSwiss RS 70 | 48.6 gr | 84% | 37,159 psi | 63% | 2457 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 46,557 psi | 79% | 2500 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,074 psi | 68% | 2428 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 96% | 46,282 psi | 79% | 2602 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 42,989 psi | 73% | 2457 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,796 psi | 63% | 2339 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 44,498 psi | 76% | 2480 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 39,653 psi | 68% | 2415 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,828 psi | 70% | 2474 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,153 psi | 82% | 2559 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,937 psi | 85% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,945 psi | 71% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,915 psi | 70% | 2385 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,832 psi | 78% | 2595 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,559 psi | 84% | 2487 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,567 psi | 69% | 2431 fps | 99.2% |
| Somchem S365 | 43.2 gr | 80% | 29,892 psi | 51% | 2283 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 44,106 psi | 75% | 2533 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 46,470 psi | 79% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,876 psi | 80% | 2484 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,740 psi | 66% | 2372 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,548 psi | 59% | 2326 fps | 96% |
| Vihtavuori N540 | <<locked>> | 80% | 45,121 psi | 77% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,185 psi | 58% | 2329 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 31,531 psi | 54% | 2329 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,997 psi | 58% | 2303 fps | 98% |
| Winchester 760 | <<locked>> | 84% | 40,263 psi | 69% | 2480 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,921 psi | 49% | 2333 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,095 psi | 82% | 2569 fps | 99.9% |
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 82 powders for 7 mm Exp. Rem. loaded with the .284 | 158gr | Prvi Partizan Grom. Alliant Reloder-26 delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,792 fps. Accurate 3100 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 158.0 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-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-16, ReloadSwiss RS 70, Somchem S365 rank at the top here: for 7 mm Exp. Rem. with the .284 | 158gr | Prvi Partizan Grom 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.