Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Barnes Solid bullet and 50 powders. The key underlying parameters are shown in the table above.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 42,250 psi | 88% | 2431 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,540 psi | 89% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 40,944 psi | 86% | 2526 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 84% | 41,597 psi | 87% | 2448 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,901 psi | 88% | 2579 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,162 psi | 86% | 2470 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 82% | 41,495 psi | 87% | 2480 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 40,814 psi | 85% | 2536 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 88% | 40,567 psi | 85% | 2559 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,159 psi | 78% | 2493 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,031 psi | 86% | 2635 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 40,727 psi | 85% | 2474 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 84% | 41,945 psi | 88% | 2484 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,540 psi | 89% | 2523 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,235 psi | 88% | 2526 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 74% | 1594 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,075 psi | 86% | 2431 fps | 98.8% |
| IMR 4831 | <<locked>> | 94% | 41,930 psi | 88% | 2526 fps | 98.5% |
| IMR 4895 | <<locked>> | 82% | 42,482 psi | 89% | 2510 fps | 99.3% |
| Lovex S062 | <<locked>> | 82% | 40,973 psi | 86% | 2434 fps | 99.7% |
| Lovex S065 | <<locked>> | 90% | 42,931 psi | 90% | 2477 fps | 97.3% |
| Lovex S070 | <<locked>> | 92% | 43,178 psi | 90% | 2500 fps | 96.2% |
| Norma 203B | <<locked>> | 82% | 40,857 psi | 85% | 2470 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 40,901 psi | 85% | 2520 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 84% | 43,091 psi | 90% | 2533 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 94% | 42,801 psi | 89% | 2562 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,940 psi | 75% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,351 psi | 88% | 2464 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,236 psi | 90% | 2615 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,596 psi | 85% | 2543 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,799 psi | 85% | 2556 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 43,004 psi | 90% | 2448 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 86% | 40,915 psi | 85% | 2470 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,931 psi | 90% | 2477 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 40,973 psi | 86% | 2434 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 92% | 43,178 psi | 90% | 2500 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,047 psi | 88% | 2523 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,031 psi | 86% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,554 psi | 89% | 2425 fps | 95.8% |
| Somchem S355 | <<locked>> | 86% | 41,814 psi | 87% | 2474 fps | 99.5% |
| Somchem S365 | <<locked>> | 96% | 41,727 psi | 87% | 2575 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 42,395 psi | 89% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,917 psi | 90% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,467 psi | 89% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 43,018 psi | 90% | 2520 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 41,249 psi | 86% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,235 psi | 88% | 2523 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,205 psi | 84% | 2562 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,163 psi | 90% | 2503 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,243 psi | 69% | 2490 fps | 98.6% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 39,595 psi | 83% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,434 psi | 78% | 2385 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,053 psi | 65% | 2316 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,724 psi | 77% | 2352 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,117 psi | 82% | 2520 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,274 psi | 76% | 2375 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,001 psi | 81% | 2431 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,937 psi | 67% | 2329 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,241 psi | 65% | 2346 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,499 psi | 57% | 2244 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,330 psi | 70% | 2454 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 35,795 psi | 75% | 2379 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 80% | 36,695 psi | 77% | 2379 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,514 psi | 57% | 2192 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,363 psi | 82% | 2474 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 55% | 1424 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,551 psi | 81% | 2382 fps | 98.3% |
| IMR 4831 | <<locked>> | 84% | 30,443 psi | 64% | 2283 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,914 psi | 83% | 2461 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 38,464 psi | 80% | 2388 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 35,752 psi | 75% | 2333 fps | 95.2% |
| Lovex S070 | <<locked>> | 90% | 40,611 psi | 85% | 2454 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 38,363 psi | 80% | 2421 fps | 98.7% |
| Norma URP | <<locked>> | 84% | 31,763 psi | 66% | 2320 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 37,782 psi | 79% | 2434 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 37,623 psi | 79% | 2457 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 56% | 1457 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,595 psi | 83% | 2411 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,257 psi | 69% | 2408 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,127 psi | 69% | 2385 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 35,882 psi | 75% | 2444 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 40,379 psi | 84% | 2402 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 33,692 psi | 70% | 2326 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,752 psi | 75% | 2333 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 38,464 psi | 80% | 2388 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 90% | 40,611 psi | 85% | 2454 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,621 psi | 72% | 2372 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,318 psi | 76% | 2277 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 39,595 psi | 83% | 2375 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 34,621 psi | 72% | 2333 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 25,092 psi | 52% | 2175 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 39,668 psi | 83% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,321 psi | 84% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,866 psi | 69% | 2274 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 33,170 psi | 69% | 2323 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,769 psi | 81% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,692 psi | 68% | 2329 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 90% | 29,225 psi | 61% | 2313 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,240 psi | 61% | 2205 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,412 psi | 57% | 2306 fps | 95.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 50 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Barnes Solid. Alliant Reloder-26 delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,635 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.