Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 165gr | Norma Bondstrike bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 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.
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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100ᴾ | <<locked>> | 100% | 40,393 psi | 84% | 2467 fps | 97% |
| Accurate 4064 | <<locked>> | 82% | 41,756 psi | 87% | 2428 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 43,192 psi | 90% | 2533 fps | 99% |
| ADI AR 2208 | <<locked>> | 84% | 43,120 psi | 90% | 2448 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,815 psi | 89% | 2467 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,134 psi | 90% | 2480 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,612 psi | 89% | 2543 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,395 psi | 89% | 2566 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,870 psi | 81% | 2500 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,178 psi | 90% | 2651 fps | 98.9% |
| Bofors RP3 | <<locked>> | 84% | 42,801 psi | 89% | 2477 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 40,959 psi | 86% | 2434 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 90% | 43,163 psi | 90% | 2530 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,829 psi | 87% | 2480 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 42,728 psi | 89% | 2543 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 74% | 1578 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,641 psi | 89% | 2431 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,511 psi | 89% | 2431 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 41,336 psi | 86% | 2484 fps | 98.7% |
| Lovex S062 | <<locked>> | 82% | 42,583 psi | 89% | 2431 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 41,916 psi | 88% | 2431 fps | 97.5% |
| Lovex S070 | <<locked>> | 90% | 42,424 psi | 89% | 2461 fps | 96.6% |
| Norma 203B | <<locked>> | 82% | 42,511 psi | 89% | 2470 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 42,975 psi | 90% | 2526 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 82% | 42,148 psi | 88% | 2487 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 92% | 42,003 psi | 88% | 2520 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,998 psi | 75% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,336 psi | 86% | 2418 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,482 psi | 89% | 2572 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,946 psi | 90% | 2556 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,801 psi | 89% | 2569 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 86% | 42,960 psi | 90% | 2474 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,916 psi | 88% | 2431 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 42,583 psi | 89% | 2431 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 42,424 psi | 89% | 2461 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,408 psi | 87% | 2480 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,612 psi | 89% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,437 psi | 87% | 2382 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 40,872 psi | 85% | 2428 fps | 99.6% |
| Somchem S365 | <<locked>> | 94% | 41,133 psi | 86% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,742 psi | 87% | 2415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 42,322 psi | 88% | 2477 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 43,105 psi | 90% | 2428 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,582 psi | 87% | 2484 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,482 psi | 89% | 2569 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 42,235 psi | 88% | 2457 fps | 99.8% |
| Winchester 760 | <<locked>> | 90% | 43,163 psi | 90% | 2530 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,896 psi | 73% | 2516 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 35,418 psi | 74% | 2372 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,233 psi | 82% | 2385 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,560 psi | 64% | 2277 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 38,159 psi | 80% | 2352 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,826 psi | 79% | 2375 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,582 psi | 85% | 2431 fps | 99% |
| Alliant Reloder-16 | 37.2 gr | 82% | 31,241 psi | 65% | 2290 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,518 psi | 68% | 2352 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,977 psi | 56% | 2205 fps | 95.5% |
| Alliant Reloder-26 | 46.1 gr | 92% | 32,822 psi | 69% | 2421 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 37,449 psi | 78% | 2382 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,247 psi | 80% | 2382 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 37,898 psi | 79% | 2428 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,963 psi | 56% | 2152 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 88% | 39,943 psi | 83% | 2490 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 56% | 1411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,074 psi | 84% | 2382 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,016 psi | 84% | 2385 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 29,921 psi | 63% | 2244 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 40,103 psi | 84% | 2388 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 34,983 psi | 73% | 2290 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 37,594 psi | 79% | 2365 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 39,987 psi | 84% | 2421 fps | 99.2% |
| Norma URP | <<locked>> | 82% | 31,169 psi | 65% | 2280 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,349 psi | 82% | 2434 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 37,043 psi | 77% | 2418 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 56% | 1444 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,682 psi | 81% | 2369 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,621 psi | 72% | 2411 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 30,589 psi | 64% | 2293 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 32,793 psi | 69% | 2346 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 35,273 psi | 74% | 2329 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,983 psi | 73% | 2290 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 40,103 psi | 84% | 2388 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 37,594 psi | 79% | 2365 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,114 psi | 75% | 2375 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,826 psi | 79% | 2274 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,943 psi | 81% | 2333 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 36,129 psi | 75% | 2336 fps | 98.9% |
| Somchem S365 | 37.1 gr | 80% | 26,223 psi | 55% | 2188 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 80% | 34,345 psi | 72% | 2277 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 30,545 psi | 64% | 2231 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 40,321 psi | 84% | 2382 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,097 psi | 67% | 2287 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 28,790 psi | 60% | 2274 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,298 psi | 63% | 2208 fps | 97.4% |
| Winchester 760 | <<locked>> | 86% | 37,898 psi | 79% | 2428 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,006 psi | 56% | 2280 fps | 96% |
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 48 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 165gr | Norma Bondstrike. Alliant Reloder-26 delivers the highest muzzle velocity at 2,651 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,651 fps. Accurate 3100 gives the best case fill at 100 %, and 48 of the 48 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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, Alliant Reloder-16, Somchem S365 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 165gr | Norma Bondstrike 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.