Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 145gr | Peregrine Glider GRM bullet and 62 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>> | 86% | 42,511 psi | 89% | 2579 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 42,714 psi | 89% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,408 psi | 87% | 2664 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 41,771 psi | 87% | 2595 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 88% | 42,989 psi | 90% | 2602 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,265 psi | 90% | 2730 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,018 psi | 88% | 2618 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,438 psi | 89% | 2631 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,756 psi | 87% | 2677 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,814 psi | 87% | 2710 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,098 psi | 69% | 2510 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,930 psi | 86% | 2598 fps | 97.3% |
| Bofors RP3 | <<locked>> | 88% | 41,510 psi | 87% | 2621 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,337 psi | 88% | 2628 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 88% | 42,743 psi | 89% | 2625 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 42,134 psi | 88% | 2605 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 40,596 psi | 85% | 2615 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 40,379 psi | 84% | 2625 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,780 psi | 73% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 40,698 psi | 85% | 2562 fps | 98.6% |
| IMR 3031 | <<locked>> | 82% | 41,220 psi | 86% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,380 psi | 89% | 2582 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 42,569 psi | 89% | 2667 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 40,828 psi | 85% | 2608 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 84% | 43,076 psi | 90% | 2625 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 42,482 psi | 89% | 2539 fps | 98.6% |
| Lovex S062 | <<locked>> | 86% | 41,945 psi | 88% | 2585 fps | 99.4% |
| Norma 201 | <<locked>> | 82% | 40,828 psi | 85% | 2549 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 41,104 psi | 86% | 2562 fps | 100% |
| Norma 203B | <<locked>> | 86% | 41,727 psi | 87% | 2618 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 41,771 psi | 87% | 2664 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 86% | 41,481 psi | 87% | 2635 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,163 psi | 90% | 2631 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,070 psi | 73% | 1713 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,727 psi | 87% | 2680 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,684 psi | 87% | 2717 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,292 psi | 86% | 2684 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,380 psi | 89% | 2703 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 84% | 41,133 psi | 86% | 2546 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 41,423 psi | 87% | 2612 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,076 psi | 90% | 2625 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 41,945 psi | 88% | 2585 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,105 psi | 90% | 2671 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,684 psi | 87% | 2575 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,076 psi | 90% | 2618 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,511 psi | 89% | 2510 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,511 psi | 89% | 2516 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,061 psi | 88% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,698 psi | 87% | 2579 fps | 98.4% |
| Somchem S355 | <<locked>> | 90% | 42,583 psi | 89% | 2621 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,366 psi | 89% | 2720 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 42,714 psi | 89% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,178 psi | 90% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 41,437 psi | 87% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 40,640 psi | 85% | 2556 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 41,046 psi | 86% | 2612 fps | 97% |
| Vihtavuori N540 | <<locked>> | 86% | 42,496 psi | 89% | 2585 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 42,975 psi | 90% | 2667 fps | 97.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,114 psi | 73% | 2582 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,742 psi | 87% | 2595 fps | 98.9% |
| Winchester 748 | <<locked>> | 82% | 43,279 psi | 90% | 2648 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,264 psi | 88% | 2618 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% | 34,737 psi | 73% | 2441 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 32,866 psi | 69% | 2425 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 35,766 psi | 75% | 2549 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 39,233 psi | 82% | 2543 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 33,359 psi | 70% | 2398 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,331 psi | 74% | 2552 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,474 psi | 68% | 2415 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,056 psi | 73% | 2474 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,664 psi | 72% | 2513 fps | 95.1% |
| Alliant Reloder-17 | 40.7 gr | 84% | 31,879 psi | 67% | 2477 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,140 psi | 65% | 2457 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,174 psi | 80% | 2543 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 31,604 psi | 66% | 2408 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,450 psi | 82% | 2572 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 84% | 37,623 psi | 79% | 2523 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 39,508 psi | 83% | 2556 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,457 psi | 62% | 2356 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,302 psi | 74% | 2516 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 54% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,913 psi | 79% | 2507 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 38,508 psi | 80% | 2552 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,969 psi | 73% | 2428 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 34,737 psi | 73% | 2507 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,868 psi | 75% | 2503 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 37,536 psi | 78% | 2520 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 39,914 psi | 83% | 2490 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 34,592 psi | 72% | 2434 fps | 98% |
| Norma 201 | <<locked>> | 80% | 38,290 psi | 80% | 2500 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 38,522 psi | 80% | 2513 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,432 psi | 72% | 2464 fps | 96.7% |
| Norma URP | <<locked>> | 92% | 36,506 psi | 76% | 2556 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 33,881 psi | 71% | 2470 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,277 psi | 84% | 2575 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,918 psi | 54% | 1529 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,260 psi | 76% | 2566 fps | 96.6% |
| ReloadSwiss RS 60 | 38.8 gr | 80% | 29,849 psi | 62% | 2431 fps | 97.7% |
| ReloadSwiss RS 62 | 44.5 gr | 92% | 35,810 psi | 75% | 2566 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,566 psi | 83% | 2641 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 36,201 psi | 76% | 2448 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 29,718 psi | 62% | 2356 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,536 psi | 78% | 2520 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 34,592 psi | 72% | 2434 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,038 psi | 65% | 2405 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,117 psi | 82% | 2523 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,768 psi | 79% | 2513 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,103 psi | 84% | 2464 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,953 psi | 69% | 2336 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 39,523 psi | 83% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,856 psi | 81% | 2526 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 30,879 psi | 65% | 2369 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 26,745 psi | 56% | 2339 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 40,321 psi | 84% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,534 psi | 74% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,434 psi | 76% | 2451 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,283 psi | 61% | 2310 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 36,114 psi | 75% | 2507 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 34,969 psi | 73% | 2438 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 35,273 psi | 74% | 2510 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 32,895 psi | 69% | 2530 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,037 psi | 63% | 2333 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 40,292 psi | 84% | 2592 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,941 psi | 77% | 2513 fps | 97.9% |
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 62 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 145gr | Peregrine Glider GRM. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,730 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,730 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:8.5 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 .284 | 145gr | Peregrine Glider GRM 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.