Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .283 | 140gr | Frontier PH HPBT 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 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% | 42,859 psi | 90% | 2638 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,859 psi | 90% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 41,249 psi | 86% | 2717 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 86% | 42,308 psi | 88% | 2644 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,583 psi | 89% | 2779 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,539 psi | 87% | 2667 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,322 psi | 88% | 2684 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,263 psi | 86% | 2726 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,263 psi | 86% | 2756 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,273 psi | 74% | 2618 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,004 psi | 90% | 2697 fps | 97.8% |
| Bofors RP3 | <<locked>> | 86% | 41,423 psi | 87% | 2674 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 86% | 42,409 psi | 89% | 2677 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,960 psi | 90% | 2717 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,902 psi | 90% | 2733 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 73% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,453 psi | 89% | 2654 fps | 98.9% |
| IMR 4064 | <<locked>> | 84% | 41,626 psi | 87% | 2625 fps | 98% |
| IMR 4831 | <<locked>> | 96% | 42,453 psi | 89% | 2720 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 43,294 psi | 90% | 2713 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 82% | 42,815 psi | 89% | 2674 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 41,423 psi | 87% | 2628 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 43,033 psi | 90% | 2648 fps | 99.5% |
| Norma 202 | <<locked>> | 82% | 43,207 psi | 90% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 84% | 41,568 psi | 87% | 2671 fps | 98.4% |
| Norma URP | <<locked>> | 94% | 41,408 psi | 87% | 2713 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 84% | 41,017 psi | 86% | 2680 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,317 psi | 74% | 1768 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 41,263 psi | 86% | 2730 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,234 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,017 psi | 86% | 2733 fps | 96.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,713 psi | 87% | 2749 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 82% | 40,843 psi | 85% | 2595 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 88% | 41,321 psi | 86% | 2664 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,815 psi | 89% | 2674 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 41,423 psi | 87% | 2628 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,728 psi | 89% | 2723 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,496 psi | 89% | 2664 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,684 psi | 87% | 2559 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,409 psi | 89% | 2674 fps | 98.9% |
| Somchem S365 | <<locked>> | 98% | 42,061 psi | 88% | 2772 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 42,699 psi | 89% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 40,843 psi | 85% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 43,149 psi | 90% | 2657 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 92% | 40,973 psi | 86% | 2664 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 41,945 psi | 88% | 2628 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 42,728 psi | 89% | 2717 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,753 psi | 79% | 2694 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,350 psi | 86% | 2648 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,640 psi | 87% | 2664 fps | 98.9% |
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% | 37,579 psi | 79% | 2543 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,505 psi | 74% | 2533 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,998 psi | 75% | 2605 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 35,215 psi | 74% | 2493 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,130 psi | 78% | 2654 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,534 psi | 72% | 2513 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,072 psi | 77% | 2572 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,505 psi | 72% | 2566 fps | 95% |
| Alliant Reloder-17 | 41.9 gr | 82% | 31,662 psi | 66% | 2520 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,314 psi | 65% | 2513 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,306 psi | 84% | 2641 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 33,794 psi | 71% | 2510 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 37,130 psi | 78% | 2566 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,646 psi | 62% | 2411 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,333 psi | 78% | 2615 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 54% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,030 psi | 84% | 2605 fps | 98.5% |
| IMR 4064 | <<locked>> | 80% | 36,941 psi | 77% | 2526 fps | 96.8% |
| IMR 4831 | <<locked>> | 90% | 34,896 psi | 73% | 2562 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 37,927 psi | 79% | 2605 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 39,987 psi | 84% | 2621 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 36,521 psi | 76% | 2530 fps | 98.4% |
| Norma 201 | <<locked>> | 80% | 40,567 psi | 85% | 2598 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 40,683 psi | 85% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,448 psi | 76% | 2562 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 36,506 psi | 76% | 2608 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,766 psi | 75% | 2566 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 55% | 1581 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,493 psi | 80% | 2671 fps | 97.2% |
| ReloadSwiss RS 60 | 40.9 gr | 80% | 31,604 psi | 66% | 2533 fps | 98.3% |
| ReloadSwiss RS 62 | 46 gr | 90% | 35,955 psi | 75% | 2621 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,102 psi | 82% | 2690 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 38,493 psi | 80% | 2549 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 31,923 psi | 67% | 2457 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,987 psi | 84% | 2621 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,521 psi | 76% | 2530 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,967 psi | 69% | 2503 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,842 psi | 83% | 2612 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,722 psi | 73% | 2425 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 32,967 psi | 69% | 2467 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 26,905 psi | 56% | 2388 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 37,710 psi | 79% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,464 psi | 80% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,227 psi | 65% | 2405 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 35,882 psi | 75% | 2556 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,854 psi | 77% | 2530 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,492 psi | 78% | 2612 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 96% | 33,257 psi | 69% | 2589 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,733 psi | 62% | 2372 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,001 psi | 81% | 2612 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 50 powders for 7 mm Mag. Fl. H&H loaded with the .283 | 140gr | Frontier PH HPBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,779 fps. Alliant Reloder-23 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 73–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.283" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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 | Frontier PH HPBT 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.