Load Specifications
Load data in caliber 7 mm Exp. Rem. with .284 | 170gr | Sako Hammerhead bullet and 77 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 Alliant Reloder-16.
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 2495 | <<locked>> | 82% | 53,113 psi | 90% | 2474 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 50,952 psi | 87% | 2480 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,039 psi | 87% | 2562 fps | 99.1% |
| Accurate 4064 | <<locked>> | 82% | 50,227 psi | 86% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 50,111 psi | 85% | 2562 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 84% | 50,502 psi | 86% | 2500 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 96% | 51,300 psi | 87% | 2598 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,562 psi | 89% | 2654 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 51,053 psi | 87% | 2523 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 51,053 psi | 87% | 2536 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 51,184 psi | 87% | 2615 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 51,764 psi | 88% | 2635 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,647 psi | 86% | 2589 fps | 97% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,836 psi | 87% | 2638 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,892 psi | 82% | 2579 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,901 psi | 71% | 2503 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 50,879 psi | 87% | 2700 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,601 psi | 79% | 2562 fps | 96.1% |
| Bofors RP3 | <<locked>> | 84% | 51,430 psi | 88% | 2536 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,836 psi | 87% | 2638 fps | 97.3% |
| Bofors RP7 | <<locked>> | 88% | 51,169 psi | 87% | 2516 fps | 98% |
| Hodgdon H380 | <<locked>> | 84% | 51,880 psi | 88% | 2546 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 52,446 psi | 89% | 2612 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 88% | 52,388 psi | 89% | 2572 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 51,256 psi | 87% | 2549 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 52,982 psi | 90% | 2582 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 52,054 psi | 89% | 2638 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 62% | 1588 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 49,864 psi | 85% | 2484 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 52,431 psi | 89% | 2513 fps | 98.7% |
| IMR 4350 | <<locked>> | 92% | 51,895 psi | 88% | 2549 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 52,765 psi | 90% | 2543 fps | 98.6% |
| IMR 4831 | <<locked>> | 92% | 50,850 psi | 87% | 2559 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 52,402 psi | 89% | 2562 fps | 100% |
| Lovex S062 | <<locked>> | 82% | 50,067 psi | 85% | 2480 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 52,721 psi | 90% | 2543 fps | 99.5% |
| Lovex S070 | <<locked>> | 90% | 50,778 psi | 86% | 2533 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,612 psi | 73% | 2428 fps | 97.7% |
| Norma 203B | <<locked>> | 82% | 50,415 psi | 86% | 2526 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,257 psi | 89% | 2592 fps | 97.1% |
| Norma MRP | <<locked>> | 98% | 50,459 psi | 86% | 2661 fps | 98.4% |
| Norma URP | <<locked>> | 92% | 52,344 psi | 89% | 2598 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 50,981 psi | 87% | 2552 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 51,126 psi | 87% | 2595 fps | 99.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,179 psi | 75% | 2507 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,086 psi | 63% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,054 psi | 89% | 2536 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 51,503 psi | 88% | 2631 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 49,705 psi | 85% | 2582 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 51,808 psi | 88% | 2654 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 52,228 psi | 89% | 2493 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 51,605 psi | 88% | 2533 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 52,939 psi | 90% | 2572 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 98% | 52,852 psi | 90% | 2621 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 88% | 51,169 psi | 87% | 2516 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 90% | 52,721 psi | 90% | 2543 fps | 99.5% |
| Shooters World Precision | <<locked>> | 82% | 50,067 psi | 85% | 2480 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 50,778 psi | 86% | 2533 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 52,895 psi | 90% | 2585 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,069 psi | 90% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,460 psi | 89% | 2500 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,373 psi | 89% | 2618 fps | 97.5% |
| Somchem S355 | <<locked>> | 86% | 51,779 psi | 88% | 2530 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 51,416 psi | 88% | 2605 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 50,241 psi | 86% | 2552 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 82% | 52,185 psi | 89% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 52,591 psi | 90% | 2474 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 52,939 psi | 90% | 2510 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 51,242 psi | 87% | 2549 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,385 psi | 84% | 2530 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 82% | 50,662 psi | 86% | 2467 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 50,459 psi | 86% | 2552 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 98% | 50,415 psi | 86% | 2605 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 50,531 psi | 86% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 52,446 psi | 89% | 2612 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,236 psi | 74% | 2628 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,256 psi | 86% | 2546 fps | 96.8% |
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% | 49,734 psi | 85% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,848 psi | 81% | 2431 fps | 97.2% |
| Accurate 3100 | <<locked>> | 88% | 34,084 psi | 58% | 2257 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 47,094 psi | 80% | 2431 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,694 psi | 61% | 2303 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 80% | 44,686 psi | 76% | 2408 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 45,020 psi | 77% | 2490 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,921 psi | 83% | 2598 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,150 psi | 77% | 2431 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,182 psi | 82% | 2490 fps | 99.9% |
| Alliant Reloder-16 | 42.3 gr | 80% | 34,940 psi | 59% | 2310 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,465 psi | 67% | 2428 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,556 psi | 76% | 2484 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,541 psi | 76% | 2526 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,267 psi | 46% | 2136 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,809 psi | 59% | 2346 fps | 95.8% |
| Alliant Reloder-26 | 49.1 gr | 84% | 31,111 psi | 53% | 2290 fps | 95% |
| Bofors RP15 | <<locked>> | 98% | 43,918 psi | 75% | 2513 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,092 psi | 77% | 2438 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,541 psi | 76% | 2526 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,059 psi | 68% | 2320 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 45,600 psi | 78% | 2448 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 37,623 psi | 64% | 2343 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 82% | 43,265 psi | 74% | 2415 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,416 psi | 55% | 2215 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,632 psi | 84% | 2536 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,189 psi | 67% | 2405 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,035 psi | 46% | 1414 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,007 psi | 80% | 2438 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,269 psi | 84% | 2464 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 40,524 psi | 69% | 2352 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,249 psi | 70% | 2346 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 34,403 psi | 59% | 2260 fps | 97.1% |
| IMR 4895 | <<locked>> | 80% | 49,429 psi | 84% | 2516 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,210 psi | 80% | 2438 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,870 psi | 66% | 2303 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 37,173 psi | 63% | 2287 fps | 95.3% |
| Lovex S071 | <<locked>> | 94% | 35,172 psi | 60% | 2280 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 47,558 psi | 81% | 2480 fps | 100% |
| Norma 204 | <<locked>> | 88% | 45,818 psi | 78% | 2487 fps | 95.6% |
| Norma MRP | 51 gr | 90% | 38,290 psi | 65% | 2431 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,621 psi | 61% | 2300 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 80% | 47,543 psi | 81% | 2500 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 80% | 34,519 psi | 59% | 2287 fps | 95% |
| Ramshot Magnum | <<locked>> | 98% | 41,249 psi | 70% | 2451 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 47% | 1447 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,643 psi | 78% | 2431 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,930 psi | 71% | 2480 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,201 psi | 60% | 2313 fps | 96.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,519 psi | 59% | 2320 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 48,979 psi | 83% | 2448 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,583 psi | 72% | 2388 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 49,588 psi | 84% | 2520 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 92% | 43,482 psi | 74% | 2467 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,059 psi | 68% | 2320 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,870 psi | 66% | 2303 fps | 97% |
| Shooters World Precision | <<locked>> | 80% | 47,210 psi | 80% | 2438 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,173 psi | 63% | 2287 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,613 psi | 74% | 2438 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,092 psi | 75% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,159 psi | 65% | 2254 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,076 psi | 73% | 2461 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 42,946 psi | 73% | 2388 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 31,981 psi | 54% | 2257 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 41,365 psi | 70% | 2402 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 49,153 psi | 84% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,356 psi | 84% | 2431 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,002 psi | 70% | 2329 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,057 psi | 63% | 2300 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 40,741 psi | 69% | 2382 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 47,572 psi | 81% | 2425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,405 psi | 62% | 2300 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 82% | 29,892 psi | 51% | 2205 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,216 psi | 62% | 2277 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 37,623 psi | 64% | 2343 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,585 psi | 44% | 2156 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,613 psi | 74% | 2438 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 77 powders for 7 mm Exp. Rem. loaded with the .284 | 170gr | Sako Hammerhead. Alliant Reloder-26 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,700 fps. Accurate 3100 gives the best case fill at 100 %, and 77 of the 77 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 170.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. Alliant Reloder-26, Norma MRP, Alliant Reloder-16 rank at the top here: for 7 mm Exp. Rem. with the .284 | 170gr | Sako Hammerhead 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.