Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 150gr | Sierra MatchKing bullet and 68 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% | 47,340 psi | 86% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,298 psi | 89% | 2628 fps | 96.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,454 psi | 81% | 2641 fps | 97.2% |
| Accurate 4064 | <<locked>> | 84% | 47,514 psi | 86% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 46,920 psi | 85% | 2703 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 86% | 48,544 psi | 88% | 2657 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 49,821 psi | 90% | 2808 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 48,631 psi | 88% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,008 psi | 89% | 2697 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,283 psi | 88% | 2762 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,023 psi | 89% | 2792 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,047 psi | 76% | 2667 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,369 psi | 86% | 2835 fps | 99.1% |
| Bofors RP3 | <<locked>> | 86% | 49,037 psi | 89% | 2694 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,139 psi | 89% | 2661 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 86% | 49,806 psi | 90% | 2703 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 92% | 49,617 psi | 90% | 2753 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 47,935 psi | 87% | 2694 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 47,282 psi | 86% | 2694 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,356 psi | 90% | 2779 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 65% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,037 psi | 89% | 2664 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 48,138 psi | 87% | 2641 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 47,863 psi | 87% | 2615 fps | 96.9% |
| IMR 4350 | <<locked>> | 94% | 49,574 psi | 90% | 2694 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,964 psi | 87% | 2644 fps | 96.8% |
| IMR 4831 | <<locked>> | 94% | 47,630 psi | 86% | 2700 fps | 99.2% |
| IMR 4895 | <<locked>> | 82% | 47,079 psi | 85% | 2674 fps | 99.7% |
| Lovex S062 | <<locked>> | 84% | 48,153 psi | 87% | 2641 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 47,630 psi | 86% | 2644 fps | 98.1% |
| Lovex S070 | <<locked>> | 92% | 48,138 psi | 87% | 2674 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 49,617 psi | 90% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,312 psi | 88% | 2684 fps | 99.8% |
| Norma MRPᴾ | <<locked>> | 100% | 47,079 psi | 85% | 2789 fps | 96.7% |
| Norma URP | <<locked>> | 94% | 49,487 psi | 90% | 2746 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 84% | 48,370 psi | 88% | 2703 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 94% | 48,283 psi | 88% | 2740 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 66% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 49,864 psi | 90% | 2684 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,255 psi | 89% | 2756 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,559 psi | 88% | 2789 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 46,427 psi | 84% | 2720 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,124 psi | 89% | 2799 fps | 99% |
| Rottweil R 902 | <<locked>> | 82% | 47,239 psi | 86% | 2608 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 48,921 psi | 89% | 2684 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,821 psi | 90% | 2762 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 90% | 49,139 psi | 89% | 2661 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 47,630 psi | 86% | 2644 fps | 98.1% |
| Shooters World Precision | <<locked>> | 84% | 48,153 psi | 87% | 2641 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,138 psi | 87% | 2674 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 47,297 psi | 86% | 2690 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,124 psi | 89% | 2674 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,167 psi | 87% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 47,181 psi | 86% | 2592 fps | 96.8% |
| Somchem S355 | <<locked>> | 88% | 49,385 psi | 90% | 2684 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 47,529 psi | 86% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 47,413 psi | 86% | 2687 fps | 96.2% |
| Vihtavuori N135 | <<locked>> | 82% | 47,079 psi | 85% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 47,514 psi | 86% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 47,297 psi | 86% | 2618 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,515 psi | 88% | 2694 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 84% | 48,805 psi | 89% | 2631 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 47,790 psi | 87% | 2700 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,485 psi | 84% | 2743 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,167 psi | 87% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 49,617 psi | 90% | 2753 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,652 psi | 68% | 2684 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 48,733 psi | 88% | 2680 fps | 99.9% |
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% | 44,222 psi | 80% | 2539 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,948 psi | 83% | 2569 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 38,580 psi | 70% | 2530 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,858 psi | 76% | 2539 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,156 psi | 60% | 2425 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 40,379 psi | 73% | 2507 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,613 psi | 79% | 2694 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,364 psi | 73% | 2530 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,265 psi | 79% | 2592 fps | 98.9% |
| Alliant Reloder-16 | 42.7 gr | 82% | 33,315 psi | 60% | 2438 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,969 psi | 63% | 2507 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,935 psi | 53% | 2346 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,723 psi | 65% | 2582 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 40,059 psi | 73% | 2533 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 43,410 psi | 79% | 2559 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 40,814 psi | 74% | 2539 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 40,640 psi | 74% | 2585 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,805 psi | 52% | 2290 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,237 psi | 80% | 2641 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 43,018 psi | 78% | 2657 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 48% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,905 psi | 83% | 2612 fps | 99.7% |
| IMR 4064 | <<locked>> | 80% | 42,424 psi | 77% | 2539 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,904 psi | 81% | 2562 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 43,859 psi | 80% | 2589 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,438 psi | 77% | 2543 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 32,300 psi | 59% | 2388 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,353 psi | 80% | 2621 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 42,496 psi | 77% | 2543 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,231 psi | 68% | 2438 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 40,089 psi | 73% | 2520 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,456 psi | 84% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,641 psi | 77% | 2582 fps | 99.2% |
| Norma MRP | <<locked>> | 98% | 44,034 psi | 80% | 2730 fps | 95.8% |
| Norma URP | <<locked>> | 82% | 33,562 psi | 61% | 2428 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 42,366 psi | 77% | 2598 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,726 psi | 72% | 2575 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 49% | 1549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,162 psi | 75% | 2523 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,963 psi | 83% | 2700 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,217 psi | 68% | 2572 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,851 psi | 60% | 2438 fps | 95% |
| ReloadSwiss RS 70 | 49 gr | 86% | 37,579 psi | 68% | 2559 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 44,280 psi | 80% | 2556 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,753 psi | 69% | 2480 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 46,543 psi | 84% | 2703 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 43,410 psi | 79% | 2559 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,231 psi | 68% | 2438 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 42,496 psi | 77% | 2543 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,089 psi | 73% | 2520 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,812 psi | 70% | 2533 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,108 psi | 84% | 2625 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,827 psi | 72% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,568 psi | 75% | 2487 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 38,392 psi | 70% | 2484 fps | 98.8% |
| Somchem S365 | 42.5 gr | 80% | 28,065 psi | 51% | 2323 fps | 96.9% |
| Somchem S385 | <<locked>> | 96% | 44,324 psi | 80% | 2635 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 43,947 psi | 80% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,483 psi | 81% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,637 psi | 66% | 2421 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 32,735 psi | 59% | 2379 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 42,902 psi | 78% | 2536 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,403 psi | 62% | 2431 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 31,299 psi | 57% | 2421 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,314 psi | 59% | 2352 fps | 97.3% |
| Winchester 760 | <<locked>> | 86% | 40,640 psi | 74% | 2585 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,095 psi | 53% | 2428 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,658 psi | 83% | 2628 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 91 powders for 7 x 65 R Brenneke loaded with the .284 | 150gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,835 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 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 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 MatchKing 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.