Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 150gr | Nosler Partition bullet and 95 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 60 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% | 54,085 psi | 90% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,663 psi | 87% | 2694 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,498 psi | 74% | 2654 fps | 97.4% |
| Accurate 4064 | <<locked>> | 88% | 54,346 psi | 90% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,128 psi | 90% | 2831 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,027 psi | 90% | 2769 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 51,895 psi | 86% | 2723 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,388 psi | 87% | 2808 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,156 psi | 88% | 2720 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,099 psi | 90% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,708 psi | 89% | 2887 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,040 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,446 psi | 87% | 2762 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 51,634 psi | 86% | 2831 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 52,866 psi | 88% | 2864 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,068 psi | 85% | 2792 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,366 psi | 70% | 2687 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,718 psi | 79% | 2854 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,954 psi | 90% | 2785 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 52,576 psi | 87% | 2759 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,518 psi | 87% | 2730 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,359 psi | 87% | 2746 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,287 psi | 89% | 2769 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 53,098 psi | 88% | 2825 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 92% | 53,751 psi | 89% | 2789 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 51,474 psi | 86% | 2730 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 51,779 psi | 86% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,433 psi | 90% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,374 psi | 89% | 2858 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 59% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,460 psi | 87% | 2730 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,576 psi | 86% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 51,517 psi | 86% | 2707 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,462 psi | 90% | 2736 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 52,924 psi | 88% | 2759 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 51,213 psi | 85% | 2713 fps | 97.6% |
| IMR 4831 | <<locked>> | 96% | 51,329 psi | 85% | 2772 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 53,780 psi | 89% | 2792 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,156 psi | 88% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,027 psi | 90% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,476 psi | 89% | 2697 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 51,532 psi | 86% | 2703 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,882 psi | 90% | 2756 fps | 99.1% |
| Lovex S070 | <<locked>> | 94% | 51,721 psi | 86% | 2743 fps | 98% |
| Norma 201 | <<locked>> | 84% | 53,084 psi | 88% | 2717 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,476 psi | 89% | 2717 fps | 100% |
| Norma 203B | <<locked>> | 86% | 51,706 psi | 86% | 2749 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,519 psi | 89% | 2808 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 47,398 psi | 79% | 2808 fps | 97% |
| Norma URP | <<locked>> | 96% | 53,026 psi | 88% | 2815 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 51,996 psi | 86% | 2772 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 51,938 psi | 86% | 2815 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 53,055 psi | 88% | 2736 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 52,924 psi | 88% | 2756 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 61% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,548 psi | 89% | 2756 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 52,881 psi | 88% | 2828 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,330 psi | 87% | 2861 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,940 psi | 90% | 2854 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,142 psi | 88% | 2877 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,070 psi | 90% | 2697 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,621 psi | 89% | 2717 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,402 psi | 87% | 2749 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,922 psi | 83% | 2776 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 92% | 52,518 psi | 87% | 2730 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,882 psi | 90% | 2756 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,027 psi | 90% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 51,532 psi | 86% | 2703 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,721 psi | 86% | 2743 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,027 psi | 90% | 2808 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,735 psi | 86% | 2717 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,489 psi | 87% | 2740 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,230 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,447 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,896 psi | 90% | 2710 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,443 psi | 82% | 2769 fps | 96% |
| Somchem S335 | <<locked>> | 84% | 53,853 psi | 89% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,285 psi | 85% | 2707 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 52,808 psi | 88% | 2749 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 51,401 psi | 85% | 2822 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,691 psi | 84% | 2756 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 82% | 51,474 psi | 86% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,417 psi | 89% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,969 psi | 90% | 2697 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,128 psi | 90% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 51,967 psi | 86% | 2759 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 53,548 psi | 89% | 2720 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,127 psi | 87% | 2690 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,097 psi | 85% | 2766 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,920 psi | 78% | 2759 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,996 psi | 86% | 2740 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,461 psi | 89% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,374 psi | 89% | 2828 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,927 psi | 63% | 2703 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,417 psi | 87% | 2749 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% | 44,686 psi | 74% | 2559 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,453 psi | 72% | 2536 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 38,914 psi | 65% | 2549 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 42,279 psi | 70% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,518 psi | 56% | 2444 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 47,761 psi | 79% | 2667 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,524 psi | 67% | 2520 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 49,008 psi | 81% | 2749 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,864 psi | 83% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,778 psi | 84% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,743 psi | 73% | 2707 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,524 psi | 67% | 2546 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,424 psi | 72% | 2608 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,488 psi | 52% | 2402 fps | 95% |
| Alliant Reloder-17 | 45.1 gr | 80% | 35,085 psi | 58% | 2523 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,138 psi | 80% | 2740 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,211 psi | 49% | 2369 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,504 psi | 56% | 2539 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,210 psi | 78% | 2677 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 40,466 psi | 67% | 2552 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,787 psi | 73% | 2579 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,052 psi | 81% | 2694 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,959 psi | 68% | 2552 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 40,770 psi | 68% | 2602 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 88% | 47,297 psi | 79% | 2680 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 48,254 psi | 80% | 2677 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,921 psi | 48% | 2303 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,382 psi | 74% | 2654 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 43,047 psi | 72% | 2671 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 44% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,340 psi | 77% | 2631 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 48,138 psi | 80% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,583 psi | 71% | 2552 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,020 psi | 75% | 2575 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 43,961 psi | 73% | 2605 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,554 psi | 71% | 2556 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 32,460 psi | 54% | 2402 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 44,498 psi | 74% | 2638 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 49,864 psi | 83% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,326 psi | 79% | 2648 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,326 psi | 79% | 2598 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,641 psi | 71% | 2556 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,362 psi | 62% | 2454 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 40,219 psi | 67% | 2533 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 46,905 psi | 78% | 2621 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,224 psi | 78% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,786 psi | 71% | 2595 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 50,082 psi | 83% | 2749 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 41,278 psi | 69% | 2684 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 33,678 psi | 56% | 2444 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 42,496 psi | 71% | 2612 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 37,318 psi | 62% | 2533 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 49,864 psi | 83% | 2687 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,371 psi | 82% | 2700 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 45% | 1558 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,249 psi | 69% | 2536 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,137 psi | 77% | 2713 fps | 99.4% |
| ReloadSwiss RS 60 | 45.1 gr | 80% | 37,304 psi | 62% | 2585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,185 psi | 55% | 2457 fps | 95.3% |
| ReloadSwiss RS 70 | 48.1 gr | 84% | 35,317 psi | 59% | 2516 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,720 psi | 84% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,686 psi | 74% | 2572 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,927 psi | 63% | 2497 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 46,876 psi | 78% | 2723 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 43,787 psi | 73% | 2579 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,362 psi | 62% | 2454 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,326 psi | 79% | 2648 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,641 psi | 71% | 2556 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,219 psi | 67% | 2533 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,928 psi | 65% | 2546 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,211 psi | 80% | 2661 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,253 psi | 77% | 2638 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,066 psi | 80% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,234 psi | 67% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,684 psi | 69% | 2503 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,427 psi | 77% | 2717 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 47,703 psi | 79% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,095 psi | 80% | 2657 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,783 psi | 64% | 2503 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 28,355 psi | 47% | 2346 fps | 97.2% |
| Somchem S385 | <<locked>> | 96% | 44,672 psi | 74% | 2651 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 48,486 psi | 81% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,396 psi | 74% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,643 psi | 74% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,767 psi | 61% | 2434 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 32,851 psi | 55% | 2392 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 50,154 psi | 83% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,018 psi | 71% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,548 psi | 57% | 2448 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 88% | 31,647 psi | 53% | 2441 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,590 psi | 54% | 2372 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 50,053 psi | 83% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,988 psi | 68% | 2605 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,412 psi | 46% | 2382 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,788 psi | 76% | 2641 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 113 powders for 7 x 64 Brenneke loaded with the .284 | 150gr | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,887 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 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 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 60, ReloadSwiss RS 70 rank at the top here: for 7 x 64 Brenneke with the .284 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.