Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 175gr | Berger Elite Hunter bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Alliant Reloder-16.
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% | 42,844 psi | 90% | 2441 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,728 psi | 89% | 2438 fps | 98.1% |
| Accurate 4350 | <<locked>> | 90% | 42,380 psi | 89% | 2444 fps | 99.3% |
| Accurate 4350 | <<locked>> | 90% | 42,496 psi | 89% | 2448 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 82% | 42,119 psi | 88% | 2356 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 82% | 41,959 psi | 88% | 2352 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 41,974 psi | 88% | 2379 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 41,843 psi | 87% | 2375 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,597 psi | 87% | 2451 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,713 psi | 87% | 2454 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,510 psi | 87% | 2474 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,379 psi | 86% | 2470 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,872 psi | 85% | 2470 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,712 psi | 85% | 2467 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 35,940 psi | 75% | 2382 fps | 96.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 35,810 psi | 75% | 2375 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 42,308 psi | 88% | 2566 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 42,163 psi | 88% | 2562 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 41,713 psi | 87% | 2385 fps | 100% |
| Bofors RP3 | <<locked>> | 82% | 41,872 psi | 87% | 2388 fps | 100% |
| Bofors RP7 | <<locked>> | 86% | 42,409 psi | 89% | 2362 fps | 96.4% |
| Bofors RP7 | <<locked>> | 86% | 42,554 psi | 89% | 2362 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 82% | 42,772 psi | 89% | 2395 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 42,583 psi | 89% | 2392 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 88% | 42,279 psi | 88% | 2444 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 42,119 psi | 88% | 2441 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 86% | 43,076 psi | 90% | 2408 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 42,946 psi | 90% | 2405 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,191 psi | 86% | 2398 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,031 psi | 86% | 2395 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 41,597 psi | 87% | 2457 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 88% | 41,495 psi | 87% | 2454 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 75% | 1532 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,897 psi | 75% | 1532 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 42,641 psi | 89% | 2392 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 42,511 psi | 89% | 2388 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,568 psi | 87% | 2346 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,408 psi | 87% | 2343 fps | 96.6% |
| IMR 4831 | <<locked>> | 90% | 40,843 psi | 85% | 2402 fps | 99.1% |
| IMR 4831 | <<locked>> | 90% | 40,698 psi | 85% | 2398 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 41,118 psi | 86% | 2346 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 40,944 psi | 86% | 2343 fps | 97.9% |
| Lovex S070 | <<locked>> | 88% | 41,727 psi | 87% | 2379 fps | 97.1% |
| Lovex S070 | <<locked>> | 88% | 41,597 psi | 87% | 2372 fps | 97% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,418 psi | 74% | 2306 fps | 96.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,534 psi | 74% | 2306 fps | 96.3% |
| Norma MRP | <<locked>> | 98% | 42,482 psi | 89% | 2526 fps | 97% |
| Norma MRP | <<locked>> | 98% | 42,395 psi | 89% | 2526 fps | 97% |
| Norma URP | <<locked>> | 90% | 42,351 psi | 88% | 2441 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 42,206 psi | 88% | 2441 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 90% | 41,220 psi | 86% | 2434 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 90% | 41,075 psi | 86% | 2431 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 76% | 1572 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 76% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,076 psi | 90% | 2382 fps | 97.7% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,902 psi | 90% | 2379 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,539 psi | 87% | 2477 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,394 psi | 86% | 2474 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 41,989 psi | 88% | 2464 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 41,800 psi | 87% | 2461 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,626 psi | 87% | 2480 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,785 psi | 87% | 2480 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 84% | 41,887 psi | 88% | 2382 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 42,047 psi | 88% | 2385 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 86% | 42,409 psi | 89% | 2362 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 86% | 42,554 psi | 89% | 2362 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,118 psi | 86% | 2346 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,944 psi | 86% | 2343 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 88% | 41,727 psi | 87% | 2379 fps | 97.1% |
| Shooters World SW4350 | <<locked>> | 88% | 41,597 psi | 87% | 2372 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 43,033 psi | 90% | 2434 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 42,888 psi | 90% | 2431 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 41,785 psi | 87% | 2267 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 41,611 psi | 87% | 2264 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,265 psi | 90% | 2343 fps | 97.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,105 psi | 90% | 2339 fps | 97.1% |
| Somchem S355 | <<locked>> | 84% | 42,656 psi | 89% | 2385 fps | 99.9% |
| Somchem S355 | <<locked>> | 84% | 42,467 psi | 89% | 2382 fps | 99.9% |
| Somchem S365 | <<locked>> | 94% | 43,047 psi | 90% | 2490 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 43,178 psi | 90% | 2490 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 42,931 psi | 90% | 2434 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 42,815 psi | 89% | 2431 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 86% | 43,265 psi | 90% | 2365 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 40,756 psi | 85% | 2323 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 41,408 psi | 87% | 2392 fps | 99% |
| Vihtavuori N160 | <<locked>> | 88% | 41,234 psi | 86% | 2385 fps | 98.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 42,308 psi | 88% | 2408 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 88% | 40,756 psi | 85% | 2395 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 88% | 40,596 psi | 85% | 2392 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 98% | 41,959 psi | 88% | 2484 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 98% | 42,076 psi | 88% | 2487 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,089 psi | 86% | 2369 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 40,944 psi | 86% | 2365 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 42,279 psi | 88% | 2444 fps | 97.2% |
| Winchester 760 | <<locked>> | 88% | 42,119 psi | 88% | 2441 fps | 97.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,535 psi | 76% | 2493 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,405 psi | 76% | 2490 fps | 100% |
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>> | 92% | 32,706 psi | 68% | 2251 fps | 95.3% |
| Accurate 3100 | <<locked>> | 92% | 32,547 psi | 68% | 2244 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 30,139 psi | 63% | 2198 fps | 96.2% |
| Accurate 4350 | <<locked>> | 80% | 29,994 psi | 63% | 2195 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,610 psi | 83% | 2310 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 39,726 psi | 83% | 2313 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,421 psi | 82% | 2333 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,291 psi | 82% | 2329 fps | 99.8% |
| Alliant Reloder-16 | 36 gr | 80% | 30,589 psi | 64% | 2208 fps | 96.4% |
| Alliant Reloder-16 | 36 gr | 80% | 30,661 psi | 64% | 2211 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,011 psi | 71% | 2323 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,881 psi | 71% | 2320 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,034 psi | 52% | 2090 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 24,947 psi | 52% | 2087 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 33,881 psi | 71% | 2329 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 98% | 33,779 psi | 71% | 2326 fps | 95.8% |
| Alliant Reloder-26 | 43.7 gr | 88% | 30,211 psi | 63% | 2290 fps | 95.4% |
| Alliant Reloder-26 | 43.7 gr | 88% | 30,110 psi | 63% | 2287 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 39,160 psi | 82% | 2339 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 38,986 psi | 81% | 2336 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 39,871 psi | 83% | 2313 fps | 95.7% |
| Bofors RP7 | <<locked>> | 84% | 40,001 psi | 84% | 2316 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 39,885 psi | 83% | 2346 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 80% | 39,711 psi | 83% | 2339 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 37,072 psi | 77% | 2343 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 84% | 36,970 psi | 77% | 2339 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 40,538 psi | 85% | 2362 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 84% | 40,408 psi | 84% | 2359 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,137 psi | 59% | 2123 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,021 psi | 59% | 2119 fps | 97.1% |
| Hodgdon Superformance | <<locked>> | 86% | 38,885 psi | 81% | 2402 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 86% | 38,783 psi | 81% | 2398 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 56% | 1368 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 55% | 1365 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 37,797 psi | 79% | 2300 fps | 95% |
| IMR 4350 | <<locked>> | 86% | 37,652 psi | 79% | 2297 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,825 psi | 77% | 2254 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,709 psi | 77% | 2251 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 29,457 psi | 62% | 2165 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 29,341 psi | 61% | 2162 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 34,272 psi | 72% | 2208 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 34,098 psi | 71% | 2205 fps | 96% |
| Lovex S070 | <<locked>> | 84% | 36,695 psi | 77% | 2280 fps | 95.7% |
| Lovex S070 | <<locked>> | 84% | 36,796 psi | 77% | 2280 fps | 95.7% |
| Lovex S071 | <<locked>> | 98% | 33,417 psi | 70% | 2264 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 33,301 psi | 70% | 2260 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 37,333 psi | 78% | 2421 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 37,217 psi | 78% | 2418 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 30,618 psi | 64% | 2201 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 30,501 psi | 64% | 2198 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 84% | 33,910 psi | 71% | 2283 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 84% | 33,794 psi | 71% | 2280 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 56% | 1401 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,093 psi | 57% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,263 psi | 84% | 2329 fps | 97.1% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,103 psi | 84% | 2326 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,201 psi | 76% | 2375 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,042 psi | 75% | 2372 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,994 psi | 63% | 2215 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,849 psi | 62% | 2211 fps | 95.6% |
| ReloadSwiss RS 70 | 40.3 gr | 82% | 32,010 psi | 67% | 2267 fps | 95.6% |
| ReloadSwiss RS 70 | 40.3 gr | 82% | 31,908 psi | 67% | 2264 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 36,898 psi | 77% | 2293 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 36,753 psi | 77% | 2290 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 39,871 psi | 83% | 2313 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 84% | 40,001 psi | 84% | 2316 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,272 psi | 72% | 2208 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,098 psi | 71% | 2205 fps | 96% |
| Shooters World SW4350 | <<locked>> | 84% | 36,695 psi | 77% | 2280 fps | 95.7% |
| Shooters World SW4350 | <<locked>> | 84% | 36,796 psi | 77% | 2280 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,739 psi | 79% | 2336 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,594 psi | 79% | 2333 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,204 psi | 82% | 2228 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,059 psi | 82% | 2224 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 35,592 psi | 74% | 2205 fps | 95% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,029 psi | 79% | 2251 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 37,652 psi | 79% | 2293 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 37,507 psi | 78% | 2290 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 27,456 psi | 57% | 2162 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 27,325 psi | 57% | 2159 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 37,652 psi | 79% | 2336 fps | 95% |
| Somchem S385 | <<locked>> | 92% | 37,507 psi | 78% | 2333 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 35,824 psi | 75% | 2234 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 35,650 psi | 74% | 2231 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 31,923 psi | 67% | 2201 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 80% | 31,763 psi | 66% | 2195 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 39,508 psi | 83% | 2359 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 31,386 psi | 66% | 2205 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 80% | 31,256 psi | 65% | 2201 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 26,774 psi | 56% | 2156 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 84% | 26,672 psi | 56% | 2152 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,575 psi | 66% | 2178 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,444 psi | 66% | 2175 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 37,072 psi | 77% | 2343 fps | 95.6% |
| Winchester 760 | <<locked>> | 84% | 36,970 psi | 77% | 2339 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 24,903 psi | 52% | 2152 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 24,976 psi | 52% | 2156 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 97 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 175gr | Berger Elite Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 2,566 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,566 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 175.0 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-26, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 175gr | Berger Elite Hunter 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.