Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .283 | 160gr | Rhino Penetrator bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 62.
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% | 42,975 psi | 90% | 2448 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,305 psi | 82% | 2484 fps | 96.3% |
| Accurate 4064 | <<locked>> | 84% | 43,163 psi | 90% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 41,771 psi | 87% | 2546 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 84% | 42,119 psi | 88% | 2464 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,641 psi | 89% | 2602 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,989 psi | 88% | 2490 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,322 psi | 88% | 2503 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,510 psi | 87% | 2556 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,481 psi | 87% | 2585 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,971 psi | 79% | 2516 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,090 psi | 88% | 2664 fps | 98.4% |
| Bofors RP3 | <<locked>> | 84% | 41,568 psi | 87% | 2493 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 42,685 psi | 89% | 2503 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 90% | 41,945 psi | 88% | 2543 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 43,265 psi | 90% | 2543 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,047 psi | 90% | 2546 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 74% | 1601 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,597 psi | 87% | 2448 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 43,004 psi | 90% | 2549 fps | 98.8% |
| Lovex S062 | <<locked>> | 82% | 41,539 psi | 87% | 2451 fps | 99.8% |
| Lovex S065 | <<locked>> | 88% | 41,147 psi | 86% | 2451 fps | 97% |
| Lovex S070 | <<locked>> | 90% | 41,278 psi | 86% | 2474 fps | 95.9% |
| Norma 203B | <<locked>> | 82% | 41,669 psi | 87% | 2490 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 41,959 psi | 88% | 2546 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 82% | 41,220 psi | 86% | 2507 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 92% | 40,857 psi | 85% | 2530 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,810 psi | 75% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,062 psi | 90% | 2487 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,336 psi | 86% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,553 psi | 87% | 2566 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,626 psi | 87% | 2579 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 86% | 41,727 psi | 87% | 2490 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,147 psi | 86% | 2451 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 41,539 psi | 87% | 2451 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 41,278 psi | 86% | 2474 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,786 psi | 89% | 2543 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,901 psi | 88% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,279 psi | 90% | 2448 fps | 96.1% |
| Somchem S355 | <<locked>> | 86% | 42,627 psi | 89% | 2497 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 42,714 psi | 89% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,062 psi | 90% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 43,250 psi | 90% | 2477 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 41,118 psi | 86% | 2493 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 42,018 psi | 88% | 2448 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 43,192 psi | 90% | 2549 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,249 psi | 86% | 2585 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,162 psi | 86% | 2474 fps | 99.6% |
| Winchester 760 | <<locked>> | 90% | 41,945 psi | 88% | 2543 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,837 psi | 71% | 2516 fps | 99% |
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 2495 | <<locked>> | 80% | 40,292 psi | 84% | 2405 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 36,521 psi | 76% | 2428 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 38,101 psi | 80% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,807 psi | 66% | 2339 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,246 psi | 78% | 2369 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,871 psi | 83% | 2543 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,825 psi | 77% | 2392 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,523 psi | 83% | 2451 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 82% | 30,676 psi | 64% | 2303 fps | 95% |
| Alliant Reloder-17 | 39.2 gr | 80% | 31,879 psi | 67% | 2369 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,036 psi | 59% | 2267 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,272 psi | 72% | 2487 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 36,361 psi | 76% | 2395 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 37,188 psi | 78% | 2395 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 39,160 psi | 82% | 2490 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,949 psi | 58% | 2208 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,176 psi | 84% | 2493 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 55% | 1430 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,102 psi | 82% | 2398 fps | 98.5% |
| IMR 4831 | <<locked>> | 84% | 30,922 psi | 65% | 2300 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 39,044 psi | 82% | 2405 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 36,187 psi | 76% | 2349 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 38,870 psi | 81% | 2425 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 38,914 psi | 81% | 2438 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 32,474 psi | 68% | 2346 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 38,508 psi | 80% | 2454 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 38,464 psi | 80% | 2484 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,658 psi | 56% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,681 psi | 79% | 2379 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,910 psi | 71% | 2428 fps | 99.8% |
| ReloadSwiss RS 62 | 41.1 gr | 84% | 31,749 psi | 66% | 2356 fps | 95.2% |
| ReloadSwiss RS 70 | 42.7 gr | 86% | 34,098 psi | 71% | 2408 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 34,272 psi | 72% | 2343 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,187 psi | 76% | 2349 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 39,044 psi | 82% | 2405 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 38,870 psi | 81% | 2425 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,114 psi | 73% | 2388 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,869 psi | 77% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,596 psi | 85% | 2398 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 35,172 psi | 73% | 2349 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 25,498 psi | 53% | 2195 fps | 96.2% |
| Vihtavuori N135 | <<locked>> | 80% | 40,379 psi | 84% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,402 psi | 70% | 2290 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 31,821 psi | 66% | 2297 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 39,320 psi | 82% | 2402 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,330 psi | 70% | 2349 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 90% | 29,834 psi | 62% | 2336 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,747 psi | 62% | 2224 fps | 96.8% |
| Winchester 760 | <<locked>> | 88% | 39,407 psi | 82% | 2493 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,992 psi | 58% | 2336 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 50 powders for 7 mm Mag. Fl. H&H loaded with the .283 | 160gr | Rhino Penetrator. Alliant Reloder-26 delivers the highest muzzle velocity at 2,664 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,664 fps. Accurate 3100 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 71–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.283" 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .283 | 160gr | Rhino Penetrator 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.