Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 150gr | Berger Classic Hybrid Hunter bullet and 95 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-16 and ReloadSwiss RS 70.
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>> | 86% | 54,404 psi | 90% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,866 psi | 88% | 2700 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,730 psi | 74% | 2661 fps | 97.4% |
| Accurate 4064 | <<locked>> | 88% | 54,346 psi | 90% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,418 psi | 90% | 2838 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,288 psi | 90% | 2772 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,185 psi | 87% | 2730 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,576 psi | 87% | 2815 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,142 psi | 88% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,462 psi | 90% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,998 psi | 90% | 2894 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,286 psi | 87% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,736 psi | 88% | 2769 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 51,895 psi | 86% | 2838 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,127 psi | 88% | 2871 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,285 psi | 85% | 2799 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,569 psi | 71% | 2690 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,892 psi | 80% | 2861 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,201 psi | 90% | 2792 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 52,823 psi | 88% | 2766 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,750 psi | 88% | 2740 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,634 psi | 87% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,548 psi | 89% | 2779 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 53,345 psi | 89% | 2828 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 92% | 54,012 psi | 90% | 2795 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 51,459 psi | 85% | 2733 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 51,692 psi | 86% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 50,908 psi | 85% | 2766 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,563 psi | 89% | 2864 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 60% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,721 psi | 88% | 2736 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,590 psi | 86% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 51,488 psi | 86% | 2710 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,404 psi | 90% | 2740 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 53,156 psi | 88% | 2766 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,418 psi | 90% | 2766 fps | 98.2% |
| IMR 4831 | <<locked>> | 96% | 51,561 psi | 86% | 2779 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,099 psi | 90% | 2799 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,142 psi | 88% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,331 psi | 90% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,737 psi | 89% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 51,503 psi | 86% | 2707 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,114 psi | 90% | 2766 fps | 99.2% |
| Lovex S070 | <<locked>> | 94% | 51,982 psi | 86% | 2753 fps | 98.1% |
| Norma 201 | <<locked>> | 84% | 53,055 psi | 88% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,751 psi | 89% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 86% | 51,996 psi | 86% | 2756 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,751 psi | 89% | 2815 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 47,572 psi | 79% | 2815 fps | 97.1% |
| Norma URP | <<locked>> | 96% | 53,258 psi | 88% | 2822 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 52,286 psi | 87% | 2779 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 52,170 psi | 87% | 2818 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 53,316 psi | 89% | 2743 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,214 psi | 88% | 2762 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 60% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,809 psi | 89% | 2762 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,156 psi | 88% | 2835 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,605 psi | 87% | 2867 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,186 psi | 90% | 2861 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,345 psi | 89% | 2884 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,056 psi | 90% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,592 psi | 89% | 2720 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,721 psi | 88% | 2759 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,154 psi | 83% | 2782 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 92% | 52,750 psi | 88% | 2740 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,114 psi | 90% | 2766 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,331 psi | 90% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 51,503 psi | 86% | 2707 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,982 psi | 86% | 2753 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,244 psi | 90% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,996 psi | 86% | 2726 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,779 psi | 88% | 2746 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,068 psi | 85% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 51,576 psi | 86% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,128 psi | 90% | 2717 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,676 psi | 83% | 2776 fps | 96.1% |
| Somchem S335 | <<locked>> | 84% | 53,824 psi | 89% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,517 psi | 86% | 2713 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 53,055 psi | 88% | 2756 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 51,677 psi | 86% | 2828 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,908 psi | 85% | 2762 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 82% | 51,430 psi | 85% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,708 psi | 89% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,259 psi | 90% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,418 psi | 90% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,199 psi | 87% | 2766 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 53,519 psi | 89% | 2723 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,388 psi | 87% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,343 psi | 85% | 2772 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,137 psi | 78% | 2766 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,199 psi | 87% | 2746 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,795 psi | 89% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,635 psi | 89% | 2835 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,072 psi | 63% | 2710 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,707 psi | 88% | 2756 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 2495 | <<locked>> | 80% | 44,715 psi | 74% | 2559 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,424 psi | 72% | 2536 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 36,506 psi | 61% | 2500 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 42,293 psi | 70% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,430 psi | 52% | 2395 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,037 psi | 80% | 2674 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,785 psi | 68% | 2526 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 49,226 psi | 82% | 2756 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,111 psi | 83% | 2677 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,807 psi | 84% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,990 psi | 73% | 2717 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,799 psi | 68% | 2552 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,685 psi | 73% | 2615 fps | 99.1% |
| Alliant Reloder-16 | 42 gr | 80% | 31,531 psi | 52% | 2405 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,288 psi | 59% | 2533 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,341 psi | 80% | 2749 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,211 psi | 49% | 2369 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,678 psi | 56% | 2546 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,181 psi | 78% | 2680 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 40,451 psi | 67% | 2556 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,743 psi | 73% | 2579 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,327 psi | 82% | 2700 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,176 psi | 68% | 2559 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 40,988 psi | 68% | 2608 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 47,500 psi | 79% | 2687 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 48,559 psi | 81% | 2684 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,964 psi | 48% | 2310 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,643 psi | 74% | 2661 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 43,250 psi | 72% | 2680 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,629 psi | 44% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,340 psi | 77% | 2635 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 48,472 psi | 81% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,815 psi | 71% | 2559 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,281 psi | 75% | 2582 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 44,150 psi | 73% | 2612 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,772 psi | 71% | 2562 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 32,460 psi | 54% | 2405 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,744 psi | 74% | 2644 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 50,111 psi | 83% | 2677 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,601 psi | 79% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,616 psi | 79% | 2608 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,888 psi | 71% | 2562 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,594 psi | 62% | 2461 fps | 95.8% |
| Lovex S070 | <<locked>> | 86% | 40,451 psi | 67% | 2539 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,905 psi | 78% | 2621 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,485 psi | 79% | 2628 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,062 psi | 72% | 2602 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 50,241 psi | 83% | 2756 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 41,466 psi | 69% | 2690 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 31,662 psi | 53% | 2395 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 42,786 psi | 71% | 2618 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,521 psi | 62% | 2543 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 49,821 psi | 83% | 2687 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,661 psi | 83% | 2707 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 45% | 1558 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,495 psi | 69% | 2546 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,427 psi | 77% | 2720 fps | 99.4% |
| ReloadSwiss RS 60 | 45.3 gr | 80% | 37,550 psi | 62% | 2595 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,373 psi | 55% | 2467 fps | 95.5% |
| ReloadSwiss RS 70 | 48.3 gr | 84% | 35,476 psi | 59% | 2523 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,010 psi | 85% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,686 psi | 74% | 2575 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,174 psi | 63% | 2503 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 47,108 psi | 78% | 2730 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 43,743 psi | 73% | 2579 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,594 psi | 62% | 2461 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,601 psi | 79% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,888 psi | 71% | 2562 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,451 psi | 67% | 2539 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,189 psi | 65% | 2552 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,443 psi | 80% | 2667 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,499 psi | 77% | 2644 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,051 psi | 80% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,248 psi | 67% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,916 psi | 70% | 2510 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,659 psi | 78% | 2723 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 47,688 psi | 79% | 2569 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,066 psi | 80% | 2657 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,798 psi | 64% | 2507 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,355 psi | 47% | 2349 fps | 97.3% |
| Somchem S385 | <<locked>> | 96% | 44,904 psi | 75% | 2657 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 48,501 psi | 81% | 2559 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,425 psi | 74% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,918 psi | 75% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,985 psi | 61% | 2441 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,098 psi | 55% | 2402 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 50,140 psi | 83% | 2671 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,294 psi | 72% | 2556 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,532 psi | 54% | 2398 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 29,733 psi | 49% | 2395 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,547 psi | 54% | 2372 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 50,386 psi | 84% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,249 psi | 69% | 2615 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,528 psi | 46% | 2392 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,021 psi | 76% | 2648 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 95 powders for 7 x 64 Brenneke loaded with the .284 | 150gr | Berger Classic Hybrid Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,894 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 150.0 gr projectile in 0.284" calls for a 1:11.0 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 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for 7 x 64 Brenneke with the .284 | 150gr | Berger Classic Hybrid 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.