Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 160gr | Barnes Solid bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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 2015 | <<locked>> | 82% | 54,114 psi | 90% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 52,866 psi | 88% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,389 psi | 90% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,648 psi | 86% | 2572 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,395 psi | 72% | 2536 fps | 97.3% |
| Accurate 4064 | <<locked>> | 88% | 53,026 psi | 88% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 52,823 psi | 88% | 2703 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 53,243 psi | 88% | 2648 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 53,983 psi | 90% | 2644 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,068 psi | 85% | 2680 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 52,199 psi | 87% | 2598 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,026 psi | 88% | 2569 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 52,721 psi | 88% | 2759 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,172 psi | 90% | 2667 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 51,576 psi | 86% | 2641 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 53,896 psi | 90% | 2756 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 51,372 psi | 85% | 2733 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2671 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,278 psi | 69% | 2566 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,108 psi | 77% | 2723 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 52,924 psi | 88% | 2661 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 51,256 psi | 85% | 2631 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 51,532 psi | 86% | 2608 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,592 psi | 89% | 2575 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 51,256 psi | 85% | 2621 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 52,170 psi | 87% | 2644 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 51,938 psi | 86% | 2697 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 92% | 52,649 psi | 87% | 2664 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 53,824 psi | 89% | 2654 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,592 psi | 89% | 2684 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,171 psi | 88% | 2687 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 52,185 psi | 87% | 2733 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 59% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 51,401 psi | 85% | 2605 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 53,693 psi | 89% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,780 psi | 89% | 2631 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,476 psi | 89% | 2612 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 51,837 psi | 86% | 2635 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,301 psi | 89% | 2638 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 53,069 psi | 88% | 2690 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 52,895 psi | 88% | 2667 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 52,199 psi | 87% | 2598 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 52,750 psi | 88% | 2618 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 52,591 psi | 87% | 2575 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,679 psi | 89% | 2628 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 52,678 psi | 88% | 2631 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 53,592 psi | 89% | 2664 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 51,822 psi | 86% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 84% | 52,562 psi | 87% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,128 psi | 90% | 2677 fps | 100% |
| Norma 204 | <<locked>> | 96% | 52,054 psi | 86% | 2677 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 45,934 psi | 76% | 2677 fps | 96.9% |
| Norma URP | <<locked>> | 96% | 51,677 psi | 86% | 2687 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 54,389 psi | 90% | 2700 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 53,751 psi | 89% | 2736 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 52,214 psi | 87% | 2615 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 51,967 psi | 86% | 2631 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 61% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 52,344 psi | 87% | 2628 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 51,619 psi | 86% | 2697 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 51,300 psi | 85% | 2736 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 52,112 psi | 87% | 2720 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 51,750 psi | 86% | 2749 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 53,011 psi | 88% | 2572 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 52,460 psi | 87% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 51,474 psi | 86% | 2631 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,776 psi | 81% | 2651 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 92% | 51,532 psi | 86% | 2608 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 52,678 psi | 88% | 2631 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 52,750 psi | 88% | 2618 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,679 psi | 89% | 2628 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 53,592 psi | 89% | 2664 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 52,808 psi | 88% | 2684 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,099 psi | 90% | 2644 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 51,459 psi | 85% | 2615 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,388 psi | 89% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,548 psi | 89% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 52,982 psi | 88% | 2589 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,312 psi | 80% | 2644 fps | 96% |
| Somchem S335 | <<locked>> | 84% | 52,649 psi | 87% | 2530 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,896 psi | 90% | 2638 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 51,822 psi | 86% | 2628 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,374 psi | 89% | 2740 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,400 psi | 82% | 2631 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 84% | 53,737 psi | 89% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 52,272 psi | 87% | 2556 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,011 psi | 88% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,127 psi | 88% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,317 psi | 90% | 2687 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 52,388 psi | 87% | 2592 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,418 psi | 90% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,229 psi | 88% | 2690 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,556 psi | 76% | 2638 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,172 psi | 90% | 2664 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 52,533 psi | 87% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 51,938 psi | 86% | 2697 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,927 psi | 61% | 2582 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 51,169 psi | 85% | 2621 fps | 100% |
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 2015 | <<locked>> | 80% | 50,763 psi | 84% | 2500 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,656 psi | 73% | 2438 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,691 psi | 84% | 2582 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,540 psi | 71% | 2418 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 35,389 psi | 59% | 2385 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 41,292 psi | 69% | 2438 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,472 psi | 51% | 2283 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,978 psi | 78% | 2546 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 39,885 psi | 66% | 2408 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 47,863 psi | 80% | 2625 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,081 psi | 82% | 2549 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,893 psi | 83% | 2530 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,902 psi | 71% | 2589 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,682 psi | 66% | 2431 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,656 psi | 71% | 2493 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,792 psi | 51% | 2290 fps | 95.1% |
| Alliant Reloder-17 | 41.9 gr | 80% | 34,258 psi | 57% | 2408 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,050 psi | 78% | 2618 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,500 psi | 47% | 2260 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,853 psi | 58% | 2484 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,137 psi | 77% | 2556 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 39,465 psi | 66% | 2434 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 42,888 psi | 71% | 2461 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,691 psi | 84% | 2536 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,124 psi | 80% | 2575 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,103 psi | 67% | 2438 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 39,900 psi | 66% | 2487 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 46,180 psi | 77% | 2556 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,471 psi | 79% | 2559 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,413 psi | 47% | 2205 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,323 psi | 72% | 2533 fps | 99.9% |
| Hodgdon Superformance | 48.7 gr | 88% | 41,989 psi | 70% | 2549 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 44% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,266 psi | 75% | 2507 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,239 psi | 78% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,901 psi | 70% | 2438 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,425 psi | 74% | 2461 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 42,989 psi | 71% | 2487 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,901 psi | 70% | 2441 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 31,647 psi | 53% | 2297 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 43,729 psi | 73% | 2520 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,081 psi | 82% | 2549 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,383 psi | 77% | 2526 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,746 psi | 78% | 2484 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 41,974 psi | 70% | 2444 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 36,709 psi | 61% | 2346 fps | 95.8% |
| Lovex S070 | <<locked>> | 86% | 39,436 psi | 66% | 2421 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,948 psi | 76% | 2500 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,282 psi | 77% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,047 psi | 70% | 2480 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 48,791 psi | 81% | 2625 fps | 95.6% |
| Norma MRP | <<locked>> | 96% | 40,147 psi | 67% | 2566 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 32,866 psi | 55% | 2333 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 41,611 psi | 69% | 2497 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 36,593 psi | 61% | 2425 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 48,878 psi | 81% | 2562 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,486 psi | 81% | 2579 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 45% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,567 psi | 67% | 2425 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,194 psi | 75% | 2592 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,463 psi | 61% | 2467 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,256 psi | 54% | 2346 fps | 95.3% |
| ReloadSwiss RS 70 | 44.7 gr | 84% | 34,505 psi | 57% | 2405 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,096 psi | 83% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,700 psi | 73% | 2454 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,101 psi | 62% | 2382 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 45,658 psi | 76% | 2598 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 42,888 psi | 71% | 2461 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,709 psi | 61% | 2346 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,383 psi | 77% | 2526 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,974 psi | 70% | 2444 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,436 psi | 66% | 2421 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,174 psi | 63% | 2434 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,384 psi | 79% | 2543 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,440 psi | 75% | 2520 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,210 psi | 78% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,436 psi | 66% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,002 psi | 68% | 2392 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,237 psi | 75% | 2592 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 46,833 psi | 78% | 2448 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,992 psi | 78% | 2536 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 37,913 psi | 63% | 2388 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,557 psi | 46% | 2238 fps | 97.2% |
| Somchem S385 | <<locked>> | 96% | 43,439 psi | 72% | 2530 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 47,587 psi | 79% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,453 psi | 72% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,801 psi | 73% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,998 psi | 60% | 2326 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,227 psi | 54% | 2287 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,153 psi | 82% | 2546 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,163 psi | 70% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,560 psi | 52% | 2283 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 28,732 psi | 48% | 2280 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,821 psi | 53% | 2264 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 48,936 psi | 81% | 2589 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 39,900 psi | 66% | 2487 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,760 psi | 44% | 2277 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,817 psi | 74% | 2523 fps | 99.8% |
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 98 powders for 7 x 64 Brenneke loaded with the .284 | 160gr | Barnes Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,759 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 x 64 Brenneke with the .284 | 160gr | Barnes Solid 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.