Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 180gr | Berger Hybrid Target bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 51,300 psi | 85% | 2392 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 52,605 psi | 87% | 2451 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,878 psi | 81% | 2487 fps | 99.3% |
| Accurate 4064 | <<locked>> | 84% | 51,663 psi | 86% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 51,474 psi | 86% | 2536 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,259 psi | 90% | 2510 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 52,301 psi | 87% | 2474 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 52,576 psi | 87% | 2569 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2559 fps | 96.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,433 psi | 90% | 2628 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,591 psi | 87% | 2569 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,547 psi | 87% | 2490 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,852 psi | 88% | 2510 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 52,547 psi | 87% | 2585 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,432 psi | 89% | 2608 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,837 psi | 86% | 2562 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2559 fps | 97.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,963 psi | 76% | 2507 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,263 psi | 67% | 2434 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,069 psi | 87% | 2677 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,911 psi | 90% | 2526 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,904 psi | 75% | 2493 fps | 96.6% |
| Bofors RP3 | <<locked>> | 86% | 53,214 psi | 88% | 2507 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2559 fps | 97.6% |
| Bofors RP7 | <<locked>> | 90% | 52,924 psi | 88% | 2493 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 86% | 53,548 psi | 89% | 2520 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 53,867 psi | 89% | 2582 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 90% | 54,085 psi | 90% | 2546 fps | 98.5% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,114 psi | 90% | 2569 fps | 96.4% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,707 psi | 88% | 2546 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 52,446 psi | 87% | 2516 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 51,184 psi | 85% | 2503 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,780 psi | 89% | 2618 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,172 psi | 60% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 52,591 psi | 87% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 51,721 psi | 86% | 2454 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,230 psi | 90% | 2487 fps | 99.3% |
| IMR 4350 | <<locked>> | 94% | 53,621 psi | 89% | 2523 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 51,387 psi | 85% | 2470 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 52,025 psi | 86% | 2526 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,186 psi | 90% | 2533 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,344 psi | 87% | 2507 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 53,447 psi | 89% | 2441 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 51,866 psi | 86% | 2451 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,346 psi | 90% | 2513 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 52,112 psi | 87% | 2503 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,741 psi | 68% | 2356 fps | 98% |
| Norma 201 | <<locked>> | 82% | 53,055 psi | 88% | 2457 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,911 psi | 90% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 84% | 52,141 psi | 87% | 2500 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,795 psi | 89% | 2566 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 51,634 psi | 86% | 2638 fps | 99.2% |
| Norma URP | <<locked>> | 94% | 53,954 psi | 90% | 2569 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 52,707 psi | 88% | 2523 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 47,688 psi | 79% | 2539 fps | 96% |
| Ramshot Hunter | <<locked>> | 94% | 52,475 psi | 87% | 2569 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,496 psi | 71% | 2434 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,724 psi | 61% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,621 psi | 89% | 2507 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,679 psi | 89% | 2572 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,272 psi | 89% | 2605 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 51,169 psi | 85% | 2556 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,621 psi | 89% | 2631 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,044 psi | 65% | 2444 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 84% | 53,737 psi | 89% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,084 psi | 88% | 2500 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,447 psi | 90% | 2546 fps | 97.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,259 psi | 90% | 2595 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 52,924 psi | 88% | 2493 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,346 psi | 90% | 2513 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 51,866 psi | 86% | 2451 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 52,112 psi | 87% | 2503 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 51,213 psi | 85% | 2510 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,881 psi | 88% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,215 psi | 90% | 2395 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 51,605 psi | 86% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,172 psi | 90% | 2470 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,766 psi | 89% | 2592 fps | 98.4% |
| Somchem S335 | <<locked>> | 82% | 53,722 psi | 89% | 2395 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,519 psi | 89% | 2500 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 52,547 psi | 87% | 2490 fps | 96% |
| Somchem S365 | <<locked>> | 96% | 52,446 psi | 87% | 2569 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 51,488 psi | 86% | 2526 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 84% | 53,824 psi | 89% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,404 psi | 90% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 51,097 psi | 85% | 2431 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 52,692 psi | 88% | 2516 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,485 psi | 79% | 2454 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 84% | 52,344 psi | 87% | 2438 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 51,735 psi | 86% | 2523 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2572 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,272 psi | 87% | 2628 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,185 psi | 87% | 2493 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,201 psi | 90% | 2585 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,278 psi | 69% | 2552 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,547 psi | 87% | 2493 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,430 psi | 85% | 2516 fps | 97.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 48,327 psi | 80% | 2356 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,485 psi | 77% | 2359 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 32,648 psi | 54% | 2198 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 45,745 psi | 76% | 2362 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,214 psi | 57% | 2238 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 80% | 50,981 psi | 85% | 2464 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,308 psi | 72% | 2336 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 40,915 psi | 68% | 2372 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 98% | 47,050 psi | 78% | 2507 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,181 psi | 78% | 2523 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 40,799 psi | 68% | 2372 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,714 psi | 73% | 2359 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,586 psi | 77% | 2418 fps | 100% |
| Alliant Reloder-16 | 38.9 gr | 80% | 33,953 psi | 56% | 2251 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,072 psi | 63% | 2359 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 40,321 psi | 67% | 2362 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,103 psi | 67% | 2405 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,831 psi | 41% | 2037 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,604 psi | 53% | 2234 fps | 95.4% |
| Alliant Reloder-26 | 45.1 gr | 84% | 29,849 psi | 50% | 2234 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,720 psi | 84% | 2484 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 42,163 psi | 70% | 2444 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 43,801 psi | 73% | 2369 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,103 psi | 67% | 2405 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 38,856 psi | 65% | 2257 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 44,208 psi | 73% | 2379 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 36,405 psi | 60% | 2283 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 80% | 39,508 psi | 66% | 2300 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 98% | 50,676 psi | 84% | 2516 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 98% | 49,342 psi | 82% | 2497 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,357 psi | 52% | 2156 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,993 psi | 80% | 2461 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 37,884 psi | 63% | 2343 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 45% | 1368 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,400 psi | 82% | 2428 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,498 psi | 76% | 2362 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,906 psi | 80% | 2388 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 36,811 psi | 61% | 2238 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,089 psi | 67% | 2280 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 33,199 psi | 55% | 2201 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 47,776 psi | 79% | 2441 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 49,182 psi | 82% | 2461 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 50,256 psi | 83% | 2398 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,701 psi | 76% | 2362 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,898 psi | 63% | 2241 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 36,013 psi | 60% | 2224 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 31,546 psi | 52% | 2172 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 50,125 psi | 83% | 2418 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,633 psi | 84% | 2415 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,948 psi | 76% | 2405 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,220 psi | 68% | 2362 fps | 95.2% |
| Norma MRP | <<locked>> | 90% | 36,912 psi | 61% | 2369 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 34,330 psi | 57% | 2238 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 45,861 psi | 76% | 2425 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,556 psi | 74% | 2487 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 33,214 psi | 55% | 2221 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 39,436 psi | 66% | 2375 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,485 psi | 46% | 1398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,222 psi | 73% | 2362 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,937 psi | 83% | 2520 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,480 psi | 67% | 2408 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,808 psi | 56% | 2254 fps | 97.5% |
| ReloadSwiss RS 70 | 42.5 gr | 80% | 33,272 psi | 55% | 2257 fps | 96.7% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,390 psi | 60% | 2382 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 47,703 psi | 79% | 2375 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,191 psi | 68% | 2320 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,223 psi | 75% | 2402 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 39,233 psi | 65% | 2349 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 38,856 psi | 65% | 2257 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,898 psi | 63% | 2241 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 45,701 psi | 76% | 2362 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,013 psi | 60% | 2224 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,076 psi | 70% | 2369 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,400 psi | 82% | 2438 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,140 psi | 85% | 2356 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,033 psi | 71% | 2244 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,912 psi | 61% | 2188 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,553 psi | 69% | 2395 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 50,821 psi | 84% | 2356 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,771 psi | 69% | 2323 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 49,429 psi | 82% | 2444 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 30,835 psi | 51% | 2198 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 37,391 psi | 62% | 2287 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 47,848 psi | 79% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,964 psi | 80% | 2356 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,740 psi | 66% | 2260 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,636 psi | 59% | 2234 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 39,059 psi | 65% | 2310 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 46,195 psi | 77% | 2352 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,201 psi | 58% | 2241 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 26,687 psi | 44% | 2100 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 98% | 48,747 psi | 81% | 2569 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,027 psi | 58% | 2215 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 36,405 psi | 60% | 2283 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,700 psi | 41% | 2110 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,342 psi | 82% | 2448 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,090 psi | 70% | 2369 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 x 64 Brenneke loaded with the .284 | 180gr | Berger Hybrid Target. Alliant Reloder-26 delivers the highest muzzle velocity at 2,677 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,677 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 (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 70, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for 7 x 64 Brenneke with the .284 | 180gr | Berger Hybrid Target 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.