Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 150gr | Barnes X BT bullet and 65 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-17 and Alliant Reloder-26.
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 2700 | <<locked>> | 86% | 48,878 psi | 89% | 2579 fps | 96% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,789 psi | 85% | 2651 fps | 97.4% |
| Accurate 4064 | <<locked>> | 82% | 47,630 psi | 86% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 49,124 psi | 89% | 2710 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 84% | 47,166 psi | 86% | 2602 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 47,979 psi | 87% | 2746 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 47,630 psi | 86% | 2631 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 47,950 psi | 87% | 2648 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 49,763 psi | 90% | 2756 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 47,340 psi | 86% | 2733 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,671 psi | 79% | 2667 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,936 psi | 89% | 2835 fps | 99.1% |
| Bofors RP3 | <<locked>> | 84% | 48,254 psi | 88% | 2648 fps | 99.9% |
| Bofors RP7 | <<locked>> | 88% | 47,993 psi | 87% | 2608 fps | 96% |
| Hodgdon H380 | <<locked>> | 84% | 48,457 psi | 88% | 2648 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 88% | 49,052 psi | 89% | 2713 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 49,647 psi | 90% | 2694 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,950 psi | 89% | 2690 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 47,427 psi | 86% | 2713 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 66% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 49,792 psi | 90% | 2648 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 48,834 psi | 89% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,327 psi | 90% | 2628 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,501 psi | 88% | 2595 fps | 96.8% |
| IMR 4350 | <<locked>> | 92% | 48,080 psi | 87% | 2638 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,226 psi | 89% | 2638 fps | 96.8% |
| IMR 4831 | <<locked>> | 96% | 47,384 psi | 86% | 2667 fps | 99% |
| IMR 4895 | <<locked>> | 82% | 49,139 psi | 89% | 2674 fps | 99.8% |
| Lovex S062 | <<locked>> | 82% | 47,268 psi | 86% | 2592 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 49,487 psi | 90% | 2644 fps | 98.2% |
| Lovex S070 | <<locked>> | 90% | 47,369 psi | 86% | 2625 fps | 96.8% |
| Norma 203B | <<locked>> | 82% | 47,355 psi | 86% | 2635 fps | 99.6% |
| Norma MRPᴾ | <<locked>> | 100% | 48,631 psi | 88% | 2789 fps | 96.8% |
| Norma URP | <<locked>> | 92% | 48,008 psi | 87% | 2694 fps | 99% |
| Ramshot Big Game | <<locked>> | 82% | 46,789 psi | 85% | 2648 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 94% | 49,588 psi | 90% | 2733 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 67% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,414 psi | 88% | 2625 fps | 97.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 46,992 psi | 85% | 2736 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 48,283 psi | 88% | 2726 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 47,413 psi | 86% | 2736 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 49,240 psi | 89% | 2605 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 48,066 psi | 87% | 2638 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 88% | 47,993 psi | 87% | 2608 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,487 psi | 90% | 2644 fps | 98.2% |
| Shooters World Precision | <<locked>> | 82% | 47,268 psi | 86% | 2592 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 47,369 psi | 86% | 2625 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 48,878 psi | 89% | 2690 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 49,545 psi | 90% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,139 psi | 89% | 2592 fps | 96.9% |
| Somchem S355 | <<locked>> | 86% | 48,602 psi | 88% | 2641 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 49,284 psi | 89% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 49,153 psi | 89% | 2690 fps | 96.3% |
| Unknown powder | <<locked>> | 90% | 48,791 psi | 89% | 2697 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 49,501 psi | 90% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 49,037 psi | 89% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 48,370 psi | 88% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,356 psi | 90% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 48,979 psi | 89% | 2671 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 48,138 psi | 87% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 49,661 psi | 90% | 2717 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,457 psi | 88% | 2746 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 49,487 psi | 90% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 49,052 psi | 89% | 2713 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,552 psi | 72% | 2694 fps | 99.8% |
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 2700 | <<locked>> | 84% | 45,963 psi | 83% | 2530 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 38,725 psi | 70% | 2500 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 44,947 psi | 82% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,547 psi | 61% | 2398 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 41,974 psi | 76% | 2507 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,976 psi | 82% | 2690 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,134 psi | 76% | 2533 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,991 psi | 82% | 2595 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,040 psi | 60% | 2395 fps | 95.2% |
| Alliant Reloder-17 | 43.3 gr | 80% | 36,651 psi | 67% | 2516 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,486 psi | 54% | 2326 fps | 95.3% |
| Alliant Reloder-26 | 50 gr | 90% | 35,462 psi | 64% | 2543 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 42,569 psi | 77% | 2549 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 45,339 psi | 82% | 2562 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 42,859 psi | 78% | 2546 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 43,076 psi | 78% | 2605 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,850 psi | 56% | 2310 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,265 psi | 79% | 2592 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 88% | 44,512 psi | 81% | 2657 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 49% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,251 psi | 80% | 2552 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 45,847 psi | 83% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,321 psi | 75% | 2484 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,497 psi | 79% | 2500 fps | 95.5% |
| IMR 4350 | <<locked>> | 90% | 45,150 psi | 82% | 2582 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,976 psi | 80% | 2539 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,417 psi | 61% | 2382 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 46,079 psi | 84% | 2621 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 44,614 psi | 81% | 2546 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 37,086 psi | 67% | 2402 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 42,003 psi | 76% | 2523 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 44,396 psi | 81% | 2582 fps | 99.3% |
| Norma MRP | <<locked>> | 96% | 42,772 psi | 78% | 2671 fps | 95% |
| Norma URP | <<locked>> | 80% | 33,446 psi | 61% | 2392 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,918 psi | 80% | 2598 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 39,001 psi | 71% | 2530 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,673 psi | 50% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,946 psi | 78% | 2526 fps | 96.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,798 psi | 70% | 2575 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,099 psi | 64% | 2461 fps | 95.6% |
| ReloadSwiss RS 70 | 46.2 gr | 84% | 36,869 psi | 67% | 2510 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 46,456 psi | 84% | 2559 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,292 psi | 73% | 2497 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 45,339 psi | 82% | 2562 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,086 psi | 67% | 2402 fps | 95.1% |
| Shooters World Precision | <<locked>> | 80% | 44,614 psi | 81% | 2546 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,003 psi | 76% | 2523 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,509 psi | 74% | 2536 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,698 psi | 76% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,410 psi | 79% | 2490 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 40,611 psi | 74% | 2497 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 30,313 psi | 55% | 2356 fps | 97.6% |
| Somchem S385 | <<locked>> | 96% | 46,064 psi | 84% | 2635 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 35,810 psi | 65% | 2438 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 46,630 psi | 85% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,180 psi | 84% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,672 psi | 83% | 2536 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,041 psi | 64% | 2359 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 35,984 psi | 65% | 2418 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 45,455 psi | 82% | 2559 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,506 psi | 66% | 2461 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 86% | 31,850 psi | 58% | 2405 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,214 psi | 62% | 2365 fps | 97.7% |
| Winchester 760 | <<locked>> | 84% | 43,076 psi | 78% | 2605 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,486 psi | 54% | 2402 fps | 95.9% |
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 65 powders for 7 x 65 R Brenneke loaded with the .284 | 150gr | Barnes X BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,835 fps. Accurate 3100 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 66–90 %, 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, Alliant Reloder-17, Alliant Reloder-26 rank at the top here: for 7 x 65 R Brenneke with the .284 | 150gr | Barnes X BT 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.