Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 168gr | Nosler Custom Competition bullet and 46 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 Vihtavuori N555.
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% | 41,220 psi | 86% | 2480 fps | 97.7% |
| Accurate 4350 | <<locked>> | 88% | 40,727 psi | 85% | 2484 fps | 99% |
| ADI AR 2208 | <<locked>> | 82% | 43,004 psi | 90% | 2441 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,859 psi | 90% | 2461 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 42,569 psi | 89% | 2539 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 86% | 42,424 psi | 89% | 2559 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,858 psi | 87% | 2556 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,854 psi | 77% | 2467 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 96% | 40,683 psi | 85% | 2602 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 42,830 psi | 89% | 2470 fps | 100% |
| Bofors RP7 | <<locked>> | 86% | 43,265 psi | 90% | 2444 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 88% | 43,178 psi | 90% | 2530 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 42,177 psi | 88% | 2484 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,511 psi | 89% | 2543 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 75% | 1591 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 40,828 psi | 85% | 2425 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,192 psi | 88% | 2425 fps | 96.7% |
| IMR 4831 | <<locked>> | 90% | 41,800 psi | 87% | 2487 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 41,989 psi | 88% | 2428 fps | 98% |
| Lovex S070 | <<locked>> | 88% | 42,467 psi | 89% | 2457 fps | 97.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,608 psi | 76% | 2392 fps | 96.5% |
| Norma MRP | <<locked>> | 96% | 40,741 psi | 85% | 2562 fps | 96.4% |
| Norma URP | <<locked>> | 88% | 40,553 psi | 85% | 2477 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 42,192 psi | 88% | 2520 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 76% | 1627 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 42,235 psi | 88% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 43,047 psi | 90% | 2552 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,685 psi | 89% | 2569 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 84% | 43,004 psi | 90% | 2467 fps | 100% |
| Rottweil R 907 | <<locked>> | 86% | 43,265 psi | 90% | 2444 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,989 psi | 88% | 2428 fps | 98% |
| Shooters World SW4350 | <<locked>> | 88% | 42,467 psi | 89% | 2457 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 41,147 psi | 86% | 2467 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 42,525 psi | 89% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,408 psi | 87% | 2379 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 40,959 psi | 86% | 2421 fps | 99.8% |
| Somchem S365 | <<locked>> | 92% | 41,524 psi | 87% | 2533 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 41,249 psi | 86% | 2470 fps | 96% |
| Vihtavuori N150 | <<locked>> | 84% | 41,640 psi | 87% | 2405 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 42,438 psi | 89% | 2474 fps | 99.1% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,120 psi | 90% | 2490 fps | 96% |
| Vihtavuori N550 | <<locked>> | 88% | 41,655 psi | 87% | 2480 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 98% | 43,207 psi | 90% | 2572 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,843 psi | 87% | 2451 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 43,178 psi | 90% | 2530 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,333 psi | 78% | 2582 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% | 33,475 psi | 70% | 2326 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 30,980 psi | 65% | 2277 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,292 psi | 84% | 2392 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,147 psi | 84% | 2411 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,154 psi | 65% | 2287 fps | 96.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,824 psi | 73% | 2405 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,556 psi | 53% | 2162 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,532 psi | 68% | 2359 fps | 95.1% |
| Alliant Reloder-26 | 46.2 gr | 88% | 30,893 psi | 65% | 2369 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 40,059 psi | 84% | 2421 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 38,276 psi | 80% | 2349 fps | 95% |
| Hodgdon H414 | <<locked>> | 84% | 37,840 psi | 79% | 2425 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,732 psi | 60% | 2198 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 86% | 39,856 psi | 83% | 2490 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 56% | 1421 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 38,551 psi | 81% | 2379 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,405 psi | 78% | 2329 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 30,081 psi | 63% | 2238 fps | 96.1% |
| Lovex S065 | <<locked>> | 80% | 34,853 psi | 73% | 2287 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 35,215 psi | 74% | 2310 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 34,389 psi | 72% | 2346 fps | 95.7% |
| Norma MRP | 47.9 gr | 94% | 38,174 psi | 80% | 2507 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,212 psi | 65% | 2277 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 84% | 34,795 psi | 73% | 2365 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,093 psi | 57% | 1450 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,057 psi | 77% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,560 psi | 64% | 2290 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,793 psi | 69% | 2349 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,594 psi | 79% | 2369 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 82% | 38,276 psi | 80% | 2349 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,853 psi | 73% | 2287 fps | 96.1% |
| Shooters World SW4350 | <<locked>> | 82% | 35,215 psi | 74% | 2310 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,493 psi | 80% | 2418 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,769 psi | 83% | 2303 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,260 psi | 76% | 2277 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 38,377 psi | 80% | 2372 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 28,152 psi | 59% | 2241 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 38,609 psi | 81% | 2421 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 36,434 psi | 76% | 2310 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,692 psi | 68% | 2280 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 40,654 psi | 85% | 2444 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 32,082 psi | 67% | 2280 fps | 96.3% |
| Vihtavuori N555 | 40.2 gr | 84% | 27,398 psi | 57% | 2231 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,155 psi | 67% | 2254 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 37,840 psi | 79% | 2425 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,570 psi | 53% | 2234 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 46 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 168gr | Nosler Custom Competition. Alliant Reloder-26 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,602 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 46 of the 46 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 168.0 gr projectile in 0.284" calls for a 1:11.5 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, Norma MRP, Vihtavuori N555 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 168gr | Nosler Custom Competition 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.