Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 177gr | RWS ID Classic bullet and 51 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 Winchester StaBALL HD.
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>> | 96% | 41,423 psi | 87% | 2428 fps | 98.4% |
| Accurate 4350 | <<locked>> | 86% | 40,727 psi | 85% | 2425 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 42,264 psi | 88% | 2454 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 42,351 psi | 88% | 2457 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 88% | 42,525 psi | 89% | 2487 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 42,438 psi | 89% | 2503 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 41,843 psi | 87% | 2454 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 41,597 psi | 87% | 2497 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 41,887 psi | 88% | 2500 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,218 psi | 82% | 2474 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 40,814 psi | 85% | 2552 fps | 99.4% |
| Bofors RP5 | <<locked>> | 96% | 41,597 psi | 87% | 2497 fps | 96.1% |
| Bofors RP7 | <<locked>> | 84% | 43,062 psi | 90% | 2392 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 86% | 42,989 psi | 90% | 2470 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 82% | 41,017 psi | 86% | 2388 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 42,264 psi | 88% | 2425 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 42,409 psi | 89% | 2493 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 75% | 1558 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 40,741 psi | 85% | 2372 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,974 psi | 88% | 2372 fps | 97.4% |
| IMR 4831 | <<locked>> | 88% | 41,698 psi | 87% | 2428 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 41,611 psi | 87% | 2369 fps | 98.5% |
| Lovex S070 | <<locked>> | 86% | 42,409 psi | 89% | 2405 fps | 97.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,523 psi | 83% | 2395 fps | 98% |
| Norma 204 | <<locked>> | 88% | 42,873 psi | 90% | 2451 fps | 95.9% |
| Norma MRP | <<locked>> | 94% | 40,814 psi | 85% | 2513 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 43,192 psi | 90% | 2467 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 88% | 41,945 psi | 88% | 2461 fps | 98.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 41,147 psi | 86% | 2467 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 77% | 1594 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 42,032 psi | 88% | 2497 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 43,308 psi | 90% | 2497 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 42,554 psi | 89% | 2513 fps | 99.3% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 37,811 psi | 79% | 2477 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 82% | 42,772 psi | 89% | 2405 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 43,279 psi | 90% | 2484 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 84% | 43,062 psi | 90% | 2392 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,611 psi | 87% | 2369 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 86% | 42,409 psi | 89% | 2405 fps | 97.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,930 psi | 86% | 2320 fps | 97.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,859 psi | 90% | 2480 fps | 96.4% |
| Somchem S365 | <<locked>> | 90% | 41,785 psi | 87% | 2477 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 41,307 psi | 86% | 2421 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 82% | 41,307 psi | 86% | 2343 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 42,221 psi | 88% | 2415 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 98% | 43,294 psi | 90% | 2444 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 86% | 41,452 psi | 87% | 2421 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 94% | 41,089 psi | 86% | 2474 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 41,713 psi | 87% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 43,250 psi | 90% | 2474 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,132 psi | 84% | 2592 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>> | 88% | 31,589 psi | 66% | 2231 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 33,127 psi | 69% | 2274 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 90% | 39,900 psi | 83% | 2408 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 39,726 psi | 83% | 2408 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,040 psi | 69% | 2287 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,014 psi | 77% | 2398 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 39,291 psi | 82% | 2402 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 39,015 psi | 82% | 2444 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,091 psi | 50% | 2070 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 92% | 30,603 psi | 64% | 2267 fps | 95.3% |
| Alliant Reloder-26 | 44.8 gr | 84% | 28,993 psi | 61% | 2270 fps | 95.6% |
| Bofors RP5 | <<locked>> | 94% | 39,015 psi | 82% | 2444 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 37,913 psi | 79% | 2290 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 35,331 psi | 74% | 2320 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 80% | 38,479 psi | 80% | 2339 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,632 psi | 64% | 2195 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 82% | 36,898 psi | 77% | 2379 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 57% | 1391 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 35,882 psi | 75% | 2274 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,392 psi | 82% | 2323 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 32,213 psi | 67% | 2238 fps | 97.6% |
| Lovex S065 | <<locked>> | 80% | 36,898 psi | 77% | 2277 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 35,027 psi | 73% | 2257 fps | 95.8% |
| Lovex S071 | <<locked>> | 92% | 30,516 psi | 64% | 2208 fps | 95.1% |
| Norma 204 | <<locked>> | 86% | 40,176 psi | 84% | 2398 fps | 95.1% |
| Norma MRP | 46.5 gr | 90% | 35,679 psi | 75% | 2402 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 33,330 psi | 70% | 2274 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 80% | 32,314 psi | 68% | 2260 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 98% | 38,421 psi | 80% | 2415 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 57% | 1424 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,378 psi | 82% | 2448 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,750 psi | 68% | 2290 fps | 97.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 32,387 psi | 68% | 2293 fps | 96.6% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 35,491 psi | 74% | 2418 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 40,059 psi | 84% | 2359 fps | 100% |
| Rottweil R 905 | <<locked>> | 90% | 38,145 psi | 80% | 2385 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 37,913 psi | 79% | 2290 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,898 psi | 77% | 2277 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 80% | 35,027 psi | 73% | 2257 fps | 95.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 35,969 psi | 75% | 2224 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 40,118 psi | 84% | 2428 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 29,907 psi | 62% | 2234 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 36,289 psi | 76% | 2323 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 38,682 psi | 81% | 2297 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 34,592 psi | 72% | 2270 fps | 98% |
| Vihtavuori N165 | <<locked>> | 94% | 38,058 psi | 80% | 2349 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 34,200 psi | 71% | 2277 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 25,962 psi | 54% | 2139 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,171 psi | 71% | 2251 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 35,331 psi | 74% | 2320 fps | 95.7% |
| Winchester StaBALL HD | 43 gr | 84% | 24,018 psi | 50% | 2142 fps | 96.1% |
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 51 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 177gr | RWS ID Classic. Winchester StaBALL HD delivers the highest muzzle velocity at 2,592 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,592 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 51 of the 51 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 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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, Winchester StaBALL HD rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 177gr | RWS ID Classic 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.