Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 150gr | Hornady ECX bullet and 93 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% | 52,214 psi | 87% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,012 psi | 90% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 52,475 psi | 87% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,621 psi | 89% | 2700 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,437 psi | 69% | 2595 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 54,114 psi | 90% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,230 psi | 90% | 2828 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 51,459 psi | 85% | 2726 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 52,779 psi | 88% | 2730 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,896 psi | 90% | 2726 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 51,430 psi | 85% | 2657 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 51,068 psi | 85% | 2838 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 52,678 psi | 88% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 53,098 psi | 88% | 2769 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 52,330 psi | 87% | 2835 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,214 psi | 88% | 2867 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,537 psi | 66% | 2625 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,454 psi | 74% | 2789 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 51,372 psi | 85% | 2740 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 53,098 psi | 88% | 2762 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 53,142 psi | 88% | 2733 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 52,243 psi | 87% | 2661 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 53,287 psi | 89% | 2756 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,070 psi | 90% | 2779 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 53,766 psi | 89% | 2828 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 92% | 50,981 psi | 85% | 2736 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 84% | 52,025 psi | 86% | 2733 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,040 psi | 86% | 2762 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 51,605 psi | 86% | 2769 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,244 psi | 90% | 2864 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 59% | 1686 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,272 psi | 89% | 2736 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 51,924 psi | 86% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 52,286 psi | 87% | 2713 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 52,025 psi | 86% | 2690 fps | 97.7% |
| IMR 4350 | <<locked>> | 98% | 53,447 psi | 89% | 2759 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,866 psi | 86% | 2717 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 51,445 psi | 85% | 2769 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 51,184 psi | 85% | 2749 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 53,896 psi | 90% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 51,198 psi | 85% | 2703 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,346 psi | 90% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 51,996 psi | 86% | 2710 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 51,285 psi | 85% | 2713 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 51,880 psi | 86% | 2743 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 53,519 psi | 89% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,099 psi | 90% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 88% | 52,301 psi | 87% | 2756 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,230 psi | 90% | 2812 fps | 96.3% |
| Norma URP | <<locked>> | 98% | 53,606 psi | 89% | 2822 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 52,852 psi | 88% | 2782 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 52,344 psi | 87% | 2815 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 53,954 psi | 90% | 2746 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,722 psi | 89% | 2762 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 60% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,244 psi | 90% | 2759 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,447 psi | 89% | 2831 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,968 psi | 88% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,230 psi | 90% | 2854 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,896 psi | 90% | 2884 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 54,215 psi | 90% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,157 psi | 90% | 2720 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 52,939 psi | 88% | 2756 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 53,142 psi | 88% | 2733 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 51,285 psi | 85% | 2713 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 51,198 psi | 85% | 2703 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 51,996 psi | 86% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 51,880 psi | 86% | 2743 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 51,358 psi | 85% | 2766 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 52,417 psi | 87% | 2723 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,316 psi | 89% | 2749 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 51,721 psi | 86% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 52,127 psi | 87% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 51,082 psi | 85% | 2661 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 51,314 psi | 85% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 52,359 psi | 87% | 2720 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 53,098 psi | 88% | 2749 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,488 psi | 86% | 2818 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,572 psi | 79% | 2700 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 84% | 52,069 psi | 87% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,882 psi | 90% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 51,474 psi | 86% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 51,401 psi | 85% | 2687 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,591 psi | 87% | 2766 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 54,389 psi | 90% | 2726 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,866 psi | 88% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 51,590 psi | 86% | 2769 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,410 psi | 72% | 2697 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,707 psi | 88% | 2743 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 50,923 psi | 85% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,766 psi | 89% | 2828 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,404 psi | 59% | 2631 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 53,229 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 2015 | <<locked>> | 80% | 49,037 psi | 81% | 2582 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,307 psi | 69% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,936 psi | 81% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,891 psi | 78% | 2592 fps | 95.7% |
| Accurate 3100 | <<locked>> | 98% | 38,464 psi | 64% | 2539 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,117 psi | 65% | 2500 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,025 psi | 55% | 2434 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 45,237 psi | 75% | 2621 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 38,493 psi | 64% | 2474 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,398 psi | 79% | 2628 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,095 psi | 80% | 2612 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,466 psi | 69% | 2657 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,290 psi | 64% | 2497 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,901 psi | 68% | 2556 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,620 psi | 56% | 2457 fps | 95.8% |
| Alliant Reloder-17 | 43.8 gr | 80% | 32,938 psi | 55% | 2467 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,819 psi | 48% | 2356 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,737 psi | 59% | 2592 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,643 psi | 74% | 2628 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 37,710 psi | 63% | 2500 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 44,121 psi | 73% | 2579 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,211 psi | 82% | 2615 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,485 psi | 77% | 2651 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,479 psi | 64% | 2500 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 41,002 psi | 68% | 2602 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 90% | 47,979 psi | 80% | 2687 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,701 psi | 76% | 2631 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,805 psi | 48% | 2300 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,916 psi | 70% | 2605 fps | 99.6% |
| Hodgdon Superformance | 52.1 gr | 90% | 43,787 psi | 73% | 2680 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 44% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,976 psi | 73% | 2585 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 45,542 psi | 76% | 2621 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,437 psi | 67% | 2507 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,844 psi | 71% | 2530 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 44,251 psi | 74% | 2605 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,033 psi | 71% | 2559 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 32,126 psi | 53% | 2395 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,930 psi | 70% | 2585 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 47,398 psi | 79% | 2628 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,483 psi | 74% | 2598 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,339 psi | 75% | 2559 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 40,277 psi | 67% | 2510 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 37,536 psi | 62% | 2457 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 40,321 psi | 67% | 2533 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 44,179 psi | 73% | 2572 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 44,860 psi | 75% | 2582 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,248 psi | 67% | 2546 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 50,546 psi | 84% | 2753 fps | 95.5% |
| Norma URP | <<locked>> | 84% | 33,518 psi | 56% | 2441 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 40,147 psi | 67% | 2562 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 40,118 psi | 67% | 2592 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 47,384 psi | 79% | 2638 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,021 psi | 78% | 2657 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 44% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,015 psi | 65% | 2487 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,453 psi | 72% | 2661 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,099 psi | 58% | 2533 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,938 psi | 55% | 2454 fps | 95% |
| ReloadSwiss RS 70 | 47.8 gr | 86% | 35,505 psi | 59% | 2520 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 47,950 psi | 80% | 2605 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,974 psi | 70% | 2523 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 35,447 psi | 59% | 2444 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 44,121 psi | 73% | 2579 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,536 psi | 62% | 2457 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,483 psi | 74% | 2598 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,277 psi | 67% | 2510 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 40,321 psi | 67% | 2533 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,593 psi | 61% | 2493 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,701 psi | 76% | 2612 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,888 psi | 73% | 2592 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,832 psi | 76% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,130 psi | 63% | 2398 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,003 psi | 70% | 2507 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 45,179 psi | 75% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,455 psi | 76% | 2608 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 36,216 psi | 60% | 2448 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 26,194 psi | 44% | 2280 fps | 95.9% |
| Somchem S385 | <<locked>> | 98% | 44,628 psi | 74% | 2648 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 46,253 psi | 77% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,814 psi | 69% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,395 psi | 70% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,577 psi | 57% | 2388 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 32,909 psi | 55% | 2392 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 47,630 psi | 79% | 2625 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,640 psi | 68% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,621 psi | 58% | 2448 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 30,980 psi | 51% | 2428 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,545 psi | 51% | 2316 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 47,471 psi | 79% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,263 psi | 69% | 2608 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,906 psi | 48% | 2431 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,366 psi | 72% | 2595 fps | 99.5% |
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 93 powders for 7 x 64 Brenneke loaded with the .284 | 150gr | Hornady ECX. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,884 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 | 150gr | Hornady ECX 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.