Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .283 | 140gr | Rhino Penetrator bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, 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>> | 84% | 43,047 psi | 90% | 2641 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,076 psi | 90% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 41,713 psi | 87% | 2726 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 86% | 42,511 psi | 89% | 2651 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,728 psi | 89% | 2782 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,814 psi | 87% | 2671 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,525 psi | 89% | 2690 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,713 psi | 87% | 2736 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,437 psi | 87% | 2762 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,433 psi | 74% | 2621 fps | 97.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,163 psi | 90% | 2700 fps | 97.8% |
| Bofors RP3 | <<locked>> | 86% | 41,611 psi | 87% | 2677 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 42,612 psi | 89% | 2680 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 43,149 psi | 90% | 2723 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 43,091 psi | 90% | 2736 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 73% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,670 psi | 89% | 2661 fps | 99% |
| IMR 4064 | <<locked>> | 84% | 41,843 psi | 87% | 2631 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 42,612 psi | 89% | 2726 fps | 97.7% |
| IMR 4895 | <<locked>> | 82% | 40,770 psi | 85% | 2664 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 43,033 psi | 90% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 41,640 psi | 87% | 2635 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 43,265 psi | 90% | 2651 fps | 99.5% |
| Norma 203B | <<locked>> | 84% | 41,843 psi | 87% | 2677 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 41,858 psi | 87% | 2723 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 84% | 41,176 psi | 86% | 2687 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,389 psi | 74% | 1768 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 41,495 psi | 87% | 2736 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,423 psi | 87% | 2772 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,452 psi | 87% | 2743 fps | 97.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,090 psi | 88% | 2759 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 82% | 41,075 psi | 86% | 2602 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 88% | 41,539 psi | 87% | 2671 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 43,033 psi | 90% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 41,640 psi | 87% | 2635 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,946 psi | 90% | 2726 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,685 psi | 89% | 2667 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,901 psi | 88% | 2562 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,598 psi | 89% | 2677 fps | 99% |
| Somchem S365 | <<locked>> | 98% | 42,511 psi | 89% | 2782 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 42,960 psi | 90% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,060 psi | 86% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 40,524 psi | 85% | 2608 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 92% | 41,118 psi | 86% | 2671 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 42,134 psi | 88% | 2635 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 43,178 psi | 90% | 2726 fps | 97.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,927 psi | 79% | 2700 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,481 psi | 87% | 2651 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,105 psi | 88% | 2674 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% | 37,550 psi | 78% | 2543 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,520 psi | 74% | 2533 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 33,721 psi | 70% | 2552 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 35,172 psi | 73% | 2493 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,304 psi | 78% | 2657 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,722 psi | 73% | 2520 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,289 psi | 78% | 2579 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,650 psi | 72% | 2569 fps | 95.1% |
| Alliant Reloder-17 | 42.1 gr | 82% | 31,850 psi | 67% | 2526 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,415 psi | 66% | 2516 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,509 psi | 85% | 2648 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 33,997 psi | 71% | 2516 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 37,318 psi | 78% | 2569 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,791 psi | 62% | 2415 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,521 psi | 78% | 2621 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 54% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,248 psi | 84% | 2612 fps | 98.5% |
| IMR 4064 | <<locked>> | 80% | 36,883 psi | 77% | 2526 fps | 96.8% |
| IMR 4831 | <<locked>> | 90% | 35,085 psi | 73% | 2566 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,159 psi | 80% | 2612 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 40,205 psi | 84% | 2628 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 36,753 psi | 77% | 2533 fps | 98.5% |
| Norma 201 | <<locked>> | 80% | 40,524 psi | 85% | 2598 fps | 99.1% |
| Norma 203B | <<locked>> | 80% | 36,666 psi | 77% | 2569 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 36,666 psi | 77% | 2612 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 35,940 psi | 75% | 2572 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,469 psi | 55% | 1585 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,725 psi | 81% | 2677 fps | 97.3% |
| ReloadSwiss RS 60 | 41.1 gr | 80% | 31,763 psi | 66% | 2539 fps | 98.4% |
| ReloadSwiss RS 62 | 46.2 gr | 90% | 36,114 psi | 75% | 2628 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,233 psi | 82% | 2694 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 38,725 psi | 81% | 2556 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,082 psi | 67% | 2464 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,205 psi | 84% | 2628 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,753 psi | 77% | 2533 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,141 psi | 69% | 2510 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,030 psi | 84% | 2615 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,940 psi | 73% | 2431 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 32,953 psi | 69% | 2470 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 27,050 psi | 57% | 2395 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 37,927 psi | 79% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,682 psi | 81% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,430 psi | 66% | 2411 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,056 psi | 75% | 2562 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,057 psi | 77% | 2533 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 35,259 psi | 74% | 2559 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 33,402 psi | 70% | 2592 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,849 psi | 62% | 2379 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,189 psi | 82% | 2615 fps | 98.4% |
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 76 powders for 7 mm Mag. Fl. H&H loaded with the .283 | 140gr | Rhino Penetrator. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,782 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,782 fps. Accurate 3100 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.283" calls for a 1:10.5 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 60, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .283 | 140gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.