Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 160gr | Nosler AccuBond bullet and 96 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-16 and Hodgdon Superformance.
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>> | 84% | 51,126 psi | 85% | 2556 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,084 psi | 88% | 2605 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,063 psi | 75% | 2575 fps | 97.9% |
| Accurate 4064 | <<locked>> | 86% | 51,314 psi | 85% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,995 psi | 85% | 2687 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 51,169 psi | 85% | 2625 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,330 psi | 87% | 2631 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,562 psi | 87% | 2720 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,374 psi | 89% | 2625 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,331 psi | 90% | 2795 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,576 psi | 87% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,953 psi | 88% | 2674 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,373 psi | 87% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,171 psi | 88% | 2772 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2707 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,714 psi | 71% | 2602 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,521 psi | 62% | 2507 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,138 psi | 80% | 2769 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,433 psi | 90% | 2697 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 53,011 psi | 88% | 2667 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,968 psi | 88% | 2644 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,939 psi | 88% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,766 psi | 89% | 2680 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 53,737 psi | 89% | 2736 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 54,114 psi | 90% | 2697 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 51,706 psi | 86% | 2635 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 51,982 psi | 86% | 2671 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,329 psi | 85% | 2671 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,925 psi | 90% | 2772 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 60% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,765 psi | 88% | 2638 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,967 psi | 86% | 2618 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 51,851 psi | 86% | 2615 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 51,488 psi | 86% | 2595 fps | 98.1% |
| IMR 4350 | <<locked>> | 96% | 53,447 psi | 89% | 2674 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 90% | 51,532 psi | 86% | 2625 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 51,561 psi | 86% | 2680 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 54,331 psi | 90% | 2700 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,374 psi | 89% | 2625 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 50,981 psi | 85% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,925 psi | 90% | 2605 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 51,880 psi | 86% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 51,300 psi | 85% | 2625 fps | 99.1% |
| Lovex S070 | <<locked>> | 94% | 52,054 psi | 86% | 2657 fps | 98.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,449 psi | 62% | 2434 fps | 95.9% |
| Norma 201 | <<locked>> | 84% | 53,301 psi | 89% | 2621 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,070 psi | 90% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,243 psi | 87% | 2661 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,012 psi | 90% | 2723 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 47,906 psi | 80% | 2726 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 53,519 psi | 89% | 2726 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 52,634 psi | 87% | 2684 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 52,446 psi | 87% | 2726 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 53,679 psi | 89% | 2651 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,258 psi | 88% | 2664 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 61% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,099 psi | 90% | 2667 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,505 psi | 89% | 2736 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,823 psi | 88% | 2766 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,273 psi | 90% | 2759 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,548 psi | 89% | 2789 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 54,288 psi | 90% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,925 psi | 90% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,214 psi | 88% | 2664 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,372 psi | 84% | 2690 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 52,968 psi | 88% | 2644 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 51,300 psi | 85% | 2625 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 50,981 psi | 85% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 51,880 psi | 86% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 52,054 psi | 86% | 2657 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 51,126 psi | 85% | 2667 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,069 psi | 87% | 2628 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,040 psi | 88% | 2651 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,576 psi | 86% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 51,880 psi | 86% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,302 psi | 90% | 2625 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,951 psi | 83% | 2684 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 54,056 psi | 90% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,938 psi | 86% | 2621 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,476 psi | 89% | 2661 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 51,837 psi | 86% | 2730 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2674 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 82% | 51,982 psi | 86% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,954 psi | 90% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,404 psi | 90% | 2602 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 51,372 psi | 85% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,417 psi | 87% | 2671 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 53,853 psi | 89% | 2625 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,750 psi | 88% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,663 psi | 86% | 2680 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,340 psi | 79% | 2674 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,228 psi | 87% | 2648 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,012 psi | 90% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,737 psi | 89% | 2736 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,276 psi | 64% | 2628 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,808 psi | 88% | 2657 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% | 45,020 psi | 75% | 2467 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,700 psi | 73% | 2451 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 36,680 psi | 61% | 2418 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,583 psi | 71% | 2470 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,589 psi | 52% | 2316 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 48,138 psi | 80% | 2579 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,973 psi | 68% | 2441 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 46,340 psi | 77% | 2612 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,227 psi | 83% | 2579 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,164 psi | 73% | 2625 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,814 psi | 68% | 2461 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,801 psi | 73% | 2523 fps | 99.4% |
| Alliant Reloder-16 | 40.1 gr | 80% | 31,705 psi | 53% | 2326 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,360 psi | 59% | 2444 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,643 psi | 76% | 2605 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,659 psi | 46% | 2247 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,317 psi | 59% | 2454 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,750 psi | 56% | 2467 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,718 psi | 79% | 2592 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 40,915 psi | 68% | 2470 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 41,481 psi | 69% | 2444 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,487 psi | 82% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,423 psi | 69% | 2474 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 38,595 psi | 64% | 2470 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 44,817 psi | 74% | 2546 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 48,631 psi | 81% | 2589 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,298 psi | 49% | 2238 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,034 psi | 75% | 2572 fps | 100% |
| Hodgdon Superformance | 49.1 gr | 86% | 40,567 psi | 67% | 2533 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 45% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,688 psi | 78% | 2543 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,747 psi | 81% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,062 psi | 72% | 2470 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,382 psi | 75% | 2493 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 41,684 psi | 69% | 2474 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,306 psi | 67% | 2425 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 30,603 psi | 51% | 2277 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 44,904 psi | 75% | 2552 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 50,227 psi | 83% | 2579 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,877 psi | 80% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,819 psi | 79% | 2513 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 43,134 psi | 72% | 2474 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,433 psi | 59% | 2326 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 38,174 psi | 63% | 2405 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 35,056 psi | 58% | 2385 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 47,166 psi | 78% | 2530 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,485 psi | 79% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,178 psi | 72% | 2510 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 46,992 psi | 78% | 2608 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 41,713 psi | 69% | 2608 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 31,966 psi | 53% | 2320 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 42,946 psi | 71% | 2530 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 35,433 psi | 59% | 2408 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,024 psi | 83% | 2595 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,806 psi | 83% | 2612 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,296 psi | 45% | 1493 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,756 psi | 69% | 2457 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,760 psi | 78% | 2628 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,623 psi | 63% | 2503 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,314 psi | 52% | 2333 fps | 95.2% |
| ReloadSwiss RS 70 | 45 gr | 82% | 33,315 psi | 55% | 2385 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 51,445 psi | 85% | 2562 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,875 psi | 75% | 2484 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,464 psi | 64% | 2421 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 96% | 44,338 psi | 74% | 2585 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 41,481 psi | 69% | 2444 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,433 psi | 59% | 2326 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,877 psi | 80% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,134 psi | 72% | 2474 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 38,174 psi | 63% | 2405 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,407 psi | 65% | 2467 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,631 psi | 81% | 2575 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,746 psi | 78% | 2552 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,414 psi | 80% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,553 psi | 67% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,537 psi | 66% | 2375 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,918 psi | 73% | 2582 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 47,979 psi | 80% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,559 psi | 81% | 2569 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,030 psi | 65% | 2418 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 28,631 psi | 48% | 2277 fps | 97.9% |
| Somchem S385 | <<locked>> | 94% | 42,279 psi | 70% | 2520 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 48,849 psi | 81% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,846 psi | 75% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,252 psi | 75% | 2474 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,275 psi | 62% | 2362 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 33,199 psi | 55% | 2320 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,618 psi | 84% | 2579 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,468 psi | 72% | 2464 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,721 psi | 54% | 2320 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 86% | 29,849 psi | 50% | 2316 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,895 psi | 55% | 2300 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 50,459 psi | 84% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,827 psi | 65% | 2474 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,775 psi | 46% | 2326 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,456 psi | 77% | 2559 fps | 100% |
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 | 160gr | Nosler AccuBond. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,795 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,795 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 60–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.5 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. ReloadSwiss RS 70, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for 7 x 64 Brenneke with the .284 | 160gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.