Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 170gr | Rhino Solid Shank bullet and 47 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 3100 | <<locked>> | 98% | 40,683 psi | 85% | 2448 fps | 97.6% |
| Accurate 4350 | <<locked>> | 90% | 42,946 psi | 90% | 2503 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 82% | 42,482 psi | 89% | 2408 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,612 psi | 89% | 2434 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 42,177 psi | 88% | 2513 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 86% | 42,032 psi | 88% | 2533 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,365 psi | 86% | 2523 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,521 psi | 76% | 2438 fps | 96.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 43,120 psi | 90% | 2628 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 42,293 psi | 88% | 2441 fps | 100% |
| Bofors RP7 | <<locked>> | 86% | 42,830 psi | 89% | 2415 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 82% | 42,931 psi | 90% | 2448 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 88% | 42,815 psi | 89% | 2500 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,481 psi | 87% | 2448 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,351 psi | 88% | 2516 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,665 psi | 75% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 43,178 psi | 90% | 2448 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,018 psi | 88% | 2402 fps | 96.6% |
| IMR 4831 | <<locked>> | 90% | 41,133 psi | 86% | 2454 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 41,568 psi | 87% | 2398 fps | 97.9% |
| Lovex S070 | <<locked>> | 88% | 42,047 psi | 88% | 2428 fps | 97.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,085 psi | 75% | 2362 fps | 96.3% |
| Norma MRP | <<locked>> | 98% | 43,091 psi | 90% | 2585 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 42,960 psi | 90% | 2500 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 90% | 41,640 psi | 87% | 2487 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 76% | 1611 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,843 psi | 87% | 2533 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 42,670 psi | 89% | 2523 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,177 psi | 88% | 2536 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 84% | 42,467 psi | 89% | 2438 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 86% | 42,830 psi | 89% | 2415 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,568 psi | 87% | 2398 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 88% | 42,047 psi | 88% | 2428 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 40,915 psi | 85% | 2441 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 42,221 psi | 88% | 2320 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,031 psi | 86% | 2349 fps | 96.5% |
| Somchem S355 | <<locked>> | 84% | 43,192 psi | 90% | 2441 fps | 99.9% |
| Somchem S365 | <<locked>> | 92% | 40,857 psi | 85% | 2500 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 40,683 psi | 85% | 2441 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 84% | 41,162 psi | 86% | 2375 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 42,032 psi | 88% | 2448 fps | 99% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 42,685 psi | 89% | 2461 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 88% | 41,292 psi | 86% | 2451 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 98% | 42,627 psi | 89% | 2543 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,626 psi | 87% | 2425 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 42,815 psi | 89% | 2500 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,999 psi | 77% | 2552 fps | 100% |
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>> | 92% | 33,156 psi | 69% | 2300 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 30,501 psi | 64% | 2247 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 80% | 40,016 psi | 84% | 2365 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,871 psi | 83% | 2385 fps | 99.8% |
| Alliant Reloder-16 | 37.3 gr | 80% | 30,922 psi | 65% | 2260 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,418 psi | 72% | 2375 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,411 psi | 53% | 2139 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,358 psi | 68% | 2336 fps | 95% |
| Alliant Reloder-26 | 45.3 gr | 88% | 30,472 psi | 64% | 2336 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 39,769 psi | 83% | 2395 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 38,043 psi | 79% | 2323 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 40,437 psi | 84% | 2402 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 37,478 psi | 78% | 2395 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,500 psi | 60% | 2172 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 86% | 39,407 psi | 82% | 2461 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 56% | 1401 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 38,159 psi | 80% | 2349 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,144 psi | 78% | 2306 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 29,805 psi | 62% | 2215 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 34,621 psi | 72% | 2260 fps | 96% |
| Lovex S070 | <<locked>> | 84% | 37,144 psi | 78% | 2333 fps | 95.7% |
| Lovex S071 | <<locked>> | 98% | 33,837 psi | 71% | 2313 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 37,797 psi | 79% | 2477 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 30,937 psi | 65% | 2251 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 84% | 34,461 psi | 72% | 2339 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 57% | 1437 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,593 psi | 76% | 2431 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,371 psi | 63% | 2264 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,489 psi | 68% | 2320 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 37,318 psi | 78% | 2343 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 82% | 38,043 psi | 79% | 2323 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,621 psi | 72% | 2260 fps | 96% |
| Shooters World SW4350 | <<locked>> | 84% | 37,144 psi | 78% | 2333 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,261 psi | 80% | 2392 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,682 psi | 83% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,056 psi | 75% | 2254 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 38,058 psi | 80% | 2346 fps | 99.5% |
| Somchem S365 | 38.1 gr | 80% | 27,746 psi | 58% | 2208 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 38,319 psi | 80% | 2395 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 36,172 psi | 76% | 2287 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,213 psi | 67% | 2251 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 40,219 psi | 84% | 2415 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 31,865 psi | 67% | 2257 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 27,195 psi | 57% | 2205 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,053 psi | 67% | 2231 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 37,478 psi | 78% | 2395 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,179 psi | 53% | 2201 fps | 95.6% |
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 47 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 170gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,628 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,628 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, 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. Alliant Reloder-26, Alliant Reloder-16, Somchem S365 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 170gr | Rhino Solid Shank 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.