Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 160gr | Sierra Tipped MatchKing bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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% | 51,285 psi | 85% | 2556 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,924 psi | 88% | 2605 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,933 psi | 75% | 2572 fps | 97.9% |
| Accurate 4064 | <<locked>> | 86% | 51,517 psi | 86% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,821 psi | 84% | 2684 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 51,358 psi | 85% | 2628 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,214 psi | 87% | 2631 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2717 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,548 psi | 89% | 2628 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,230 psi | 90% | 2792 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,460 psi | 87% | 2651 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,808 psi | 88% | 2671 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 52,214 psi | 87% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,011 psi | 88% | 2769 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,488 psi | 86% | 2707 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,598 psi | 71% | 2602 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,420 psi | 62% | 2507 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,037 psi | 80% | 2769 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,317 psi | 90% | 2694 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 52,823 psi | 88% | 2664 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,837 psi | 88% | 2641 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,823 psi | 88% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,592 psi | 89% | 2677 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 53,592 psi | 89% | 2736 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 53,969 psi | 90% | 2697 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 51,866 psi | 86% | 2638 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 52,214 psi | 87% | 2674 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,155 psi | 85% | 2667 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,809 psi | 89% | 2769 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 60% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,968 psi | 88% | 2641 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,808 psi | 86% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 51,706 psi | 86% | 2615 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 51,387 psi | 85% | 2592 fps | 98.1% |
| IMR 4350 | <<locked>> | 96% | 53,330 psi | 89% | 2671 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 90% | 51,416 psi | 85% | 2621 fps | 98% |
| IMR 4831 | <<locked>> | 96% | 51,416 psi | 85% | 2677 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 54,186 psi | 90% | 2697 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,548 psi | 89% | 2628 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,447 psi | 90% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,809 psi | 89% | 2605 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 51,735 psi | 86% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,375 psi | 90% | 2667 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 51,982 psi | 86% | 2654 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,333 psi | 62% | 2434 fps | 95.9% |
| Norma 201 | <<locked>> | 84% | 53,505 psi | 89% | 2625 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,954 psi | 90% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,069 psi | 87% | 2657 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,882 psi | 90% | 2720 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 47,790 psi | 79% | 2726 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 53,432 psi | 89% | 2723 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 52,504 psi | 87% | 2684 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 52,315 psi | 87% | 2723 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 53,548 psi | 89% | 2651 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,388 psi | 89% | 2664 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 61% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,012 psi | 90% | 2667 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,316 psi | 89% | 2733 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,707 psi | 88% | 2766 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,128 psi | 90% | 2759 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,432 psi | 89% | 2789 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 86% | 53,795 psi | 89% | 2621 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,026 psi | 88% | 2661 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,389 psi | 90% | 2694 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,314 psi | 84% | 2690 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 52,837 psi | 88% | 2641 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,375 psi | 90% | 2667 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,447 psi | 90% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 51,735 psi | 86% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,982 psi | 86% | 2654 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 51,039 psi | 85% | 2667 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,924 psi | 86% | 2625 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,910 psi | 88% | 2648 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,418 psi | 90% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 51,750 psi | 86% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,244 psi | 90% | 2621 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,821 psi | 83% | 2684 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 54,244 psi | 90% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 51,779 psi | 86% | 2618 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,301 psi | 89% | 2657 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 51,677 psi | 86% | 2726 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,198 psi | 85% | 2671 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 82% | 51,851 psi | 86% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,780 psi | 89% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,288 psi | 90% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 51,213 psi | 85% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,272 psi | 87% | 2671 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 53,722 psi | 89% | 2621 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,591 psi | 87% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,517 psi | 86% | 2677 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,195 psi | 78% | 2671 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,156 psi | 87% | 2648 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,853 psi | 89% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,925 psi | 90% | 2740 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,189 psi | 63% | 2628 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,649 psi | 87% | 2654 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% | 44,831 psi | 74% | 2464 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,598 psi | 72% | 2451 fps | 95.6% |
| Accurate 3100 | <<locked>> | 94% | 36,608 psi | 61% | 2418 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,438 psi | 71% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,444 psi | 52% | 2313 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 48,022 psi | 80% | 2575 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,828 psi | 68% | 2438 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 46,282 psi | 77% | 2612 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,067 psi | 83% | 2575 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,034 psi | 73% | 2621 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,930 psi | 68% | 2464 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,627 psi | 72% | 2520 fps | 99.3% |
| Alliant Reloder-16 | 40.1 gr | 80% | 31,792 psi | 53% | 2329 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,476 psi | 59% | 2448 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,513 psi | 76% | 2605 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,717 psi | 46% | 2247 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,215 psi | 59% | 2451 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,852 psi | 56% | 2467 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,558 psi | 79% | 2589 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 40,756 psi | 68% | 2470 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 41,350 psi | 69% | 2441 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,371 psi | 82% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,278 psi | 69% | 2470 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 38,479 psi | 64% | 2467 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 86% | 44,701 psi | 74% | 2543 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 48,486 psi | 81% | 2585 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,182 psi | 48% | 2234 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,875 psi | 75% | 2569 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,451 psi | 67% | 2530 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,876 psi | 45% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,528 psi | 77% | 2543 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,863 psi | 81% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,917 psi | 71% | 2467 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,281 psi | 75% | 2490 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 41,597 psi | 69% | 2470 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,422 psi | 67% | 2425 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 30,719 psi | 51% | 2280 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 44,730 psi | 74% | 2546 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 50,067 psi | 83% | 2575 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,718 psi | 79% | 2556 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,674 psi | 79% | 2510 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,975 psi | 71% | 2470 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,346 psi | 59% | 2326 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 38,043 psi | 63% | 2402 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 35,172 psi | 58% | 2388 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 47,007 psi | 78% | 2526 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,659 psi | 79% | 2533 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,033 psi | 71% | 2510 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 47,166 psi | 78% | 2612 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 41,611 psi | 69% | 2608 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 31,865 psi | 53% | 2316 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 42,786 psi | 71% | 2526 fps | 99.4% |
| Ramshot Hunter | 45.7 gr | 86% | 37,768 psi | 63% | 2461 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 50,212 psi | 83% | 2595 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,995 psi | 83% | 2615 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 45% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,655 psi | 69% | 2457 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,630 psi | 77% | 2628 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,724 psi | 63% | 2507 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,212 psi | 52% | 2329 fps | 95.1% |
| ReloadSwiss RS 70 | 44.9 gr | 82% | 33,243 psi | 55% | 2385 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 45,005 psi | 75% | 2487 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,348 psi | 64% | 2418 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 51,111 psi | 85% | 2641 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 44,193 psi | 73% | 2582 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 41,350 psi | 69% | 2441 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,346 psi | 59% | 2326 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,718 psi | 79% | 2556 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,975 psi | 71% | 2470 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 38,043 psi | 63% | 2402 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,305 psi | 65% | 2464 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,530 psi | 81% | 2572 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,615 psi | 77% | 2552 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,283 psi | 80% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,408 psi | 67% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,421 psi | 65% | 2372 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,787 psi | 73% | 2579 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 47,790 psi | 79% | 2470 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,457 psi | 81% | 2569 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,885 psi | 65% | 2418 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 28,514 psi | 47% | 2274 fps | 97.9% |
| Somchem S385 | <<locked>> | 94% | 42,148 psi | 70% | 2516 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 48,689 psi | 81% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,672 psi | 74% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,092 psi | 75% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,144 psi | 62% | 2359 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 33,069 psi | 55% | 2316 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,430 psi | 84% | 2575 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,323 psi | 72% | 2461 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,634 psi | 54% | 2316 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 29,979 psi | 50% | 2320 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,822 psi | 55% | 2297 fps | 98.1% |
| Winchester 748 | <<locked>> | 80% | 50,589 psi | 84% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,696 psi | 64% | 2470 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,688 psi | 46% | 2323 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,296 psi | 77% | 2556 fps | 99.9% |
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 96 powders for 7 x 64 Brenneke loaded with the .284 | 160gr | Sierra Tipped MatchKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,792 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 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 1:10.0 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. Alliant Reloder-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for 7 x 64 Brenneke with the .284 | 160gr | Sierra Tipped MatchKing 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.