Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:165 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 mm Mag. Fl. H&H load data
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:62 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:26"
Max. allowed Pressure:47,862 psi
Recommended Twist Rate:1:9.5
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 165gr | Sierra Tipped GameKing bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 62 and Alliant Reloder-26.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100ᴾ | <<locked>> | 100% | 39,798 psi | 83% | 2454 fps | 96.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,929 psi | 83% | 2454 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 41,191 psi | 86% | 2415 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 41,104 psi | 86% | 2411 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,467 psi | 89% | 2516 fps | 98.8% |
| Accurate 4350 | <<locked>> | 92% | 42,612 psi | 89% | 2520 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 84% | 42,714 psi | 89% | 2434 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 84% | 42,873 psi | 90% | 2438 fps | 99.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,120 psi | 90% | 2566 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,033 psi | 90% | 2566 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,395 psi | 89% | 2454 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,540 psi | 89% | 2457 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,714 psi | 89% | 2467 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,859 psi | 90% | 2470 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,974 psi | 88% | 2523 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,134 psi | 88% | 2530 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,785 psi | 87% | 2546 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,959 psi | 88% | 2552 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,363 psi | 80% | 2484 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,464 psi | 80% | 2487 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,424 psi | 89% | 2631 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,598 psi | 89% | 2635 fps | 98.7% |
| Bofors RP3 | <<locked>> | 84% | 41,989 psi | 88% | 2457 fps | 99.8% |
| Bofors RP3 | <<locked>> | 84% | 42,206 psi | 88% | 2464 fps | 99.9% |
| Bofors RP7 | <<locked>> | 88% | 43,105 psi | 90% | 2438 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 84% | 43,178 psi | 90% | 2470 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 43,018 psi | 90% | 2467 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 90% | 42,511 psi | 89% | 2513 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 42,380 psi | 89% | 2510 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,176 psi | 86% | 2464 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,350 psi | 86% | 2467 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 74% | 1572 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,447 psi | 74% | 1572 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,148 psi | 88% | 2415 fps | 99.2% |
| IMR 4064 | <<locked>> | 82% | 42,351 psi | 88% | 2418 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 43,047 psi | 90% | 2461 fps | 95.7% |
| IMR 4350 | <<locked>> | 92% | 42,946 psi | 90% | 2457 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,119 psi | 88% | 2418 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,018 psi | 88% | 2418 fps | 95.9% |
| IMR 4831 | <<locked>> | 92% | 40,669 psi | 85% | 2467 fps | 98.5% |
| IMR 4831 | <<locked>> | 92% | 40,843 psi | 85% | 2470 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 42,119 psi | 88% | 2418 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 42,003 psi | 88% | 2418 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 41,539 psi | 87% | 2418 fps | 97.3% |
| Lovex S065 | <<locked>> | 88% | 41,394 psi | 86% | 2415 fps | 97.3% |
| Lovex S070 | <<locked>> | 90% | 41,785 psi | 87% | 2441 fps | 96.3% |
| Lovex S070 | <<locked>> | 90% | 41,916 psi | 88% | 2444 fps | 96.4% |
| Norma 203B | <<locked>> | 82% | 42,032 psi | 88% | 2454 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 42,206 psi | 88% | 2457 fps | 99.5% |
| Norma MRPᴾ | <<locked>> | 100% | 42,714 psi | 89% | 2592 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 42,873 psi | 90% | 2595 fps | 96.2% |
| Norma URP | <<locked>> | 92% | 42,221 psi | 88% | 2507 fps | 98.7% |
| Norma URP | <<locked>> | 92% | 42,409 psi | 89% | 2513 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 82% | 41,698 psi | 87% | 2474 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 82% | 41,611 psi | 87% | 2474 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 92% | 41,452 psi | 87% | 2503 fps | 97% |
| Ramshot Hunter | <<locked>> | 92% | 41,582 psi | 87% | 2507 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,998 psi | 75% | 1611 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,926 psi | 75% | 1611 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,698 psi | 85% | 2402 fps | 96.4% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,857 psi | 85% | 2405 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,829 psi | 87% | 2552 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,713 psi | 87% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,974 psi | 88% | 2533 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,119 psi | 88% | 2536 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,279 psi | 88% | 2552 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,134 psi | 88% | 2549 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 86% | 42,206 psi | 88% | 2457 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 86% | 42,366 psi | 89% | 2461 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 88% | 43,105 psi | 90% | 2438 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,539 psi | 87% | 2418 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,394 psi | 86% | 2415 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 42,119 psi | 88% | 2418 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 42,003 psi | 88% | 2418 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 41,785 psi | 87% | 2441 fps | 96.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,916 psi | 88% | 2444 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 40,727 psi | 85% | 2461 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 40,582 psi | 85% | 2457 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,163 psi | 88% | 2343 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,308 psi | 88% | 2346 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,799 psi | 85% | 2362 fps | 95.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,959 psi | 86% | 2365 fps | 95.8% |
| Somchem S355 | <<locked>> | 86% | 43,047 psi | 90% | 2461 fps | 99.7% |
| Somchem S355 | <<locked>> | 86% | 42,902 psi | 90% | 2457 fps | 99.7% |
| Somchem S365 | <<locked>> | 96% | 43,149 psi | 90% | 2562 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 40,625 psi | 85% | 2520 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 42,975 psi | 90% | 2500 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 86% | 41,002 psi | 86% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,191 psi | 86% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 41,640 psi | 87% | 2461 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 90% | 41,539 psi | 87% | 2461 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 42,409 psi | 89% | 2411 fps | 100% |
| Vihtavuori N540 | <<locked>> | 82% | 42,569 psi | 89% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 40,959 psi | 86% | 2467 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 90% | 40,799 psi | 85% | 2464 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,785 psi | 87% | 2552 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,930 psi | 88% | 2556 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,481 psi | 87% | 2441 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,611 psi | 87% | 2444 fps | 99.7% |
| Winchester 760 | <<locked>> | 90% | 42,511 psi | 89% | 2513 fps | 96.4% |
| Winchester 760 | <<locked>> | 90% | 42,641 psi | 89% | 2516 fps | 96.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,243 psi | 72% | 2493 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,330 psi | 72% | 2497 fps | 99.4% |
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>> | 96% | 34,548 psi | 72% | 2349 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 34,722 psi | 73% | 2352 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,682 psi | 81% | 2369 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,566 psi | 81% | 2369 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,124 psi | 63% | 2260 fps | 95.4% |
| Accurate 4350 | <<locked>> | 82% | 30,269 psi | 63% | 2264 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,724 psi | 79% | 2339 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,869 psi | 79% | 2343 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,248 psi | 84% | 2510 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,118 psi | 84% | 2507 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,347 psi | 78% | 2362 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,260 psi | 78% | 2359 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,089 psi | 84% | 2418 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,016 psi | 84% | 2418 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 30,893 psi | 65% | 2274 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,009 psi | 65% | 2277 fps | 95.6% |
| Alliant Reloder-17 | 38.6 gr | 80% | 32,184 psi | 67% | 2339 fps | 97.9% |
| Alliant Reloder-17 | 38.6 gr | 80% | 32,111 psi | 67% | 2336 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,687 psi | 56% | 2192 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,629 psi | 56% | 2192 fps | 95.1% |
| Alliant Reloder-26 | 45.5 gr | 92% | 32,401 psi | 68% | 2402 fps | 95.3% |
| Alliant Reloder-26 | 45.5 gr | 92% | 32,271 psi | 67% | 2398 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 36,941 psi | 77% | 2365 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 36,825 psi | 77% | 2365 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 40,553 psi | 85% | 2388 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 37,797 psi | 79% | 2369 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 80% | 37,710 psi | 79% | 2365 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 88% | 39,682 psi | 83% | 2457 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 88% | 39,813 psi | 83% | 2461 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,600 psi | 56% | 2136 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,556 psi | 55% | 2136 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,455 psi | 55% | 1404 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 55% | 1404 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,624 psi | 83% | 2369 fps | 98.8% |
| IMR 4064 | <<locked>> | 80% | 39,769 psi | 83% | 2372 fps | 98.8% |
| IMR 4350 | <<locked>> | 90% | 40,553 psi | 85% | 2411 fps | 95% |
| IMR 4350 | <<locked>> | 90% | 40,408 psi | 84% | 2411 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,668 psi | 83% | 2372 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,537 psi | 83% | 2369 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 29,515 psi | 62% | 2228 fps | 95.1% |
| IMR 4831 | <<locked>> | 82% | 29,443 psi | 62% | 2224 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 39,581 psi | 83% | 2372 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 39,494 psi | 83% | 2372 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,577 psi | 72% | 2277 fps | 95.3% |
| Lovex S065 | <<locked>> | 82% | 34,505 psi | 72% | 2274 fps | 95.3% |
| Lovex S070 | <<locked>> | 88% | 39,305 psi | 82% | 2395 fps | 95.6% |
| Lovex S070 | <<locked>> | 88% | 39,479 psi | 82% | 2398 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 39,479 psi | 82% | 2408 fps | 99.1% |
| Norma 203B | <<locked>> | 80% | 39,378 psi | 82% | 2408 fps | 99.1% |
| Norma MRP | <<locked>> | 98% | 39,900 psi | 83% | 2536 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 40,001 psi | 84% | 2539 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 30,763 psi | 64% | 2264 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 30,879 psi | 65% | 2267 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 38,943 psi | 81% | 2421 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 80% | 38,812 psi | 81% | 2421 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 36,506 psi | 76% | 2402 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 88% | 36,361 psi | 76% | 2398 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 56% | 1437 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 56% | 1440 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,261 psi | 80% | 2352 fps | 95.7% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,159 psi | 80% | 2352 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,258 psi | 72% | 2398 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,156 psi | 71% | 2395 fps | 99.9% |
| ReloadSwiss RS 62 | 40.5 gr | 84% | 32,169 psi | 67% | 2329 fps | 95.7% |
| ReloadSwiss RS 62 | 40.5 gr | 84% | 32,068 psi | 67% | 2326 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,505 psi | 72% | 2382 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,621 psi | 72% | 2388 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,809 psi | 73% | 2316 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,693 psi | 72% | 2313 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 40,553 psi | 85% | 2388 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,577 psi | 72% | 2277 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,505 psi | 72% | 2274 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 39,581 psi | 83% | 2372 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 39,494 psi | 83% | 2372 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 39,305 psi | 82% | 2395 fps | 95.6% |
| Shooters World SW4350 | <<locked>> | 88% | 39,479 psi | 82% | 2398 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,694 psi | 75% | 2362 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,592 psi | 74% | 2359 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,333 psi | 78% | 2260 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,231 psi | 78% | 2260 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,247 psi | 80% | 2316 fps | 95% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,435 psi | 80% | 2320 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 35,665 psi | 75% | 2320 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 35,563 psi | 74% | 2320 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 25,860 psi | 54% | 2172 fps | 96.8% |
| Somchem S365 | <<locked>> | 80% | 25,817 psi | 54% | 2172 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 40,306 psi | 84% | 2451 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 33,866 psi | 71% | 2260 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 33,765 psi | 71% | 2260 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 82% | 32,097 psi | 67% | 2264 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 82% | 32,242 psi | 67% | 2270 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,871 psi | 83% | 2369 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,784 psi | 83% | 2369 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,488 psi | 66% | 2267 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 82% | 31,604 psi | 66% | 2270 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 88% | 28,413 psi | 59% | 2260 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 28,355 psi | 59% | 2260 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,037 psi | 63% | 2198 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,936 psi | 63% | 2195 fps | 97.2% |
| Winchester 760 | <<locked>> | 88% | 39,943 psi | 83% | 2464 fps | 95.7% |
| Winchester 760 | <<locked>> | 88% | 39,813 psi | 83% | 2461 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,643 psi | 56% | 2257 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,745 psi | 56% | 2264 fps | 95.6% |
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 103 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 165gr | Sierra Tipped GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,635 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 3100, Alliant Reloder-23 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-17, ReloadSwiss RS 62, Alliant Reloder-26 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 165gr | Sierra Tipped GameKing 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.