Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 150gr | Sierra GameKing bullet and 71 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 Somchem S365.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 47,514 psi | 86% | 2592 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,210 psi | 86% | 2585 fps | 95.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,817 psi | 81% | 2648 fps | 97.3% |
| Accurate 4064 | <<locked>> | 84% | 47,979 psi | 87% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 47,355 psi | 86% | 2713 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 86% | 48,921 psi | 89% | 2664 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 46,992 psi | 85% | 2759 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,023 psi | 89% | 2687 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,458 psi | 90% | 2703 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,660 psi | 88% | 2769 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,153 psi | 89% | 2795 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,337 psi | 77% | 2674 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,674 psi | 87% | 2844 fps | 99.2% |
| Bofors RP3 | <<locked>> | 86% | 49,168 psi | 89% | 2697 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,472 psi | 90% | 2671 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 84% | 46,731 psi | 85% | 2654 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 88% | 47,616 psi | 86% | 2720 fps | 97% |
| Hodgdon H4350 | <<locked>> | 92% | 48,936 psi | 89% | 2697 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,298 psi | 88% | 2703 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 47,703 psi | 87% | 2700 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,676 psi | 90% | 2785 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 65% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,573 psi | 88% | 2661 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 47,239 psi | 86% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 47,964 psi | 87% | 2641 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,413 psi | 86% | 2608 fps | 96.8% |
| IMR 4350 | <<locked>> | 92% | 46,833 psi | 85% | 2648 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,066 psi | 87% | 2648 fps | 96.9% |
| IMR 4831 | <<locked>> | 98% | 48,588 psi | 88% | 2720 fps | 99.3% |
| IMR 4895 | <<locked>> | 82% | 47,500 psi | 86% | 2680 fps | 99.7% |
| Lovex S062 | <<locked>> | 84% | 48,312 psi | 88% | 2644 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 47,732 psi | 87% | 2648 fps | 98.2% |
| Lovex S070 | <<locked>> | 92% | 48,472 psi | 88% | 2680 fps | 97.3% |
| Norma 201 | <<locked>> | 82% | 49,734 psi | 90% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,762 psi | 88% | 2694 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 47,369 psi | 86% | 2799 fps | 96.8% |
| Norma URP | <<locked>> | 94% | 49,850 psi | 90% | 2756 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 84% | 48,747 psi | 88% | 2713 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 94% | 48,617 psi | 88% | 2746 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 66% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 47,137 psi | 86% | 2638 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,356 psi | 90% | 2759 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,921 psi | 89% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 46,818 psi | 85% | 2730 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,458 psi | 90% | 2805 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 47,384 psi | 86% | 2612 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,342 psi | 90% | 2694 fps | 100% |
| Rottweil R 907 | <<locked>> | 90% | 49,472 psi | 90% | 2671 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 47,732 psi | 87% | 2648 fps | 98.2% |
| Shooters World Precision | <<locked>> | 84% | 48,312 psi | 88% | 2644 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,472 psi | 88% | 2680 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 47,413 psi | 86% | 2697 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,255 psi | 89% | 2677 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,298 psi | 88% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 47,500 psi | 86% | 2598 fps | 96.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,414 psi | 90% | 2759 fps | 95.8% |
| Somchem S355 | <<locked>> | 88% | 49,763 psi | 90% | 2694 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 47,892 psi | 87% | 2756 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 47,688 psi | 87% | 2697 fps | 96.3% |
| Unknown powder | <<locked>> | 90% | 47,543 psi | 86% | 2707 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 47,964 psi | 87% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 47,239 psi | 86% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 46,949 psi | 85% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,095 psi | 87% | 2635 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 47,863 psi | 87% | 2680 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 84% | 49,559 psi | 90% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 48,095 psi | 87% | 2723 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,891 psi | 85% | 2749 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,457 psi | 88% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 47,616 psi | 86% | 2720 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,898 psi | 69% | 2690 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 44,657 psi | 81% | 2549 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,309 psi | 80% | 2533 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 38,957 psi | 71% | 2539 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,250 psi | 77% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,489 psi | 61% | 2434 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,495 psi | 73% | 2510 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,714 psi | 79% | 2697 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,495 psi | 73% | 2536 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,410 psi | 79% | 2598 fps | 99% |
| Alliant Reloder-16 | 42.9 gr | 82% | 33,431 psi | 61% | 2444 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,070 psi | 64% | 2513 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,225 psi | 53% | 2356 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,998 psi | 65% | 2592 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 40,451 psi | 73% | 2543 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 43,758 psi | 79% | 2569 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 40,930 psi | 74% | 2543 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 84% | 41,727 psi | 76% | 2612 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 45,890 psi | 83% | 2644 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,950 psi | 53% | 2293 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,771 psi | 76% | 2595 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 88% | 43,033 psi | 78% | 2657 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 49% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,859 psi | 78% | 2559 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 44,353 psi | 80% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,827 psi | 72% | 2487 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,959 psi | 76% | 2507 fps | 95.4% |
| IMR 4350 | <<locked>> | 90% | 43,932 psi | 80% | 2595 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,569 psi | 77% | 2546 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 33,460 psi | 61% | 2418 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,469 psi | 81% | 2628 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 42,612 psi | 77% | 2546 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,347 psi | 68% | 2444 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 40,190 psi | 73% | 2523 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,891 psi | 85% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,757 psi | 78% | 2585 fps | 99.2% |
| Norma MRP | <<locked>> | 98% | 44,324 psi | 80% | 2740 fps | 96% |
| Norma URP | <<locked>> | 82% | 33,663 psi | 61% | 2434 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 42,496 psi | 77% | 2602 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 39,798 psi | 72% | 2579 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 49% | 1552 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,234 psi | 75% | 2526 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,108 psi | 84% | 2703 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,289 psi | 68% | 2575 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,156 psi | 60% | 2448 fps | 95.1% |
| ReloadSwiss RS 70 | 48.1 gr | 84% | 35,288 psi | 64% | 2507 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 44,672 psi | 81% | 2562 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,898 psi | 69% | 2487 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 43,758 psi | 79% | 2569 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,347 psi | 68% | 2444 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 42,612 psi | 77% | 2546 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,190 psi | 73% | 2523 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,914 psi | 71% | 2536 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,238 psi | 84% | 2628 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,219 psi | 73% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,655 psi | 76% | 2493 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,470 psi | 84% | 2707 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 38,769 psi | 70% | 2493 fps | 98.9% |
| Somchem S365 | 42.8 gr | 80% | 28,340 psi | 51% | 2333 fps | 97.1% |
| Somchem S385 | <<locked>> | 96% | 44,643 psi | 81% | 2641 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 34,200 psi | 62% | 2434 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 45,426 psi | 82% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,367 psi | 81% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,251 psi | 80% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,127 psi | 60% | 2349 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,200 psi | 62% | 2411 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 43,830 psi | 80% | 2562 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,635 psi | 63% | 2451 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 88% | 31,618 psi | 57% | 2431 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,561 psi | 59% | 2359 fps | 97.5% |
| Winchester 760 | <<locked>> | 84% | 41,727 psi | 76% | 2612 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,341 psi | 53% | 2438 fps | 96.3% |
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 71 powders for 7 x 65 R Brenneke loaded with the .284 | 150gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,844 fps. Accurate 3100 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.0 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. Alliant Reloder-16, ReloadSwiss RS 70, Somchem S365 rank at the top here: for 7 x 65 R Brenneke with the .284 | 150gr | Sierra GameKing 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.