Load Specifications
Load data in caliber 7 x 65 R Brenneke with .284 | 145gr | Speer Grand Slam bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-16 and ReloadSwiss RS 70.
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% | 46,833 psi | 85% | 2631 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,859 psi | 80% | 2674 fps | 96.8% |
| Accurate 4064 | <<locked>> | 84% | 47,195 psi | 86% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 46,572 psi | 85% | 2746 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 86% | 48,269 psi | 88% | 2697 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 49,617 psi | 90% | 2854 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 48,269 psi | 88% | 2720 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 48,675 psi | 88% | 2740 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,008 psi | 87% | 2805 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 48,675 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,611 psi | 76% | 2703 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,891 psi | 85% | 2871 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 49,763 psi | 90% | 2756 fps | 99.3% |
| Bofors RP3 | <<locked>> | 86% | 48,602 psi | 88% | 2736 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 48,965 psi | 89% | 2707 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 86% | 49,313 psi | 89% | 2743 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 88% | 47,210 psi | 86% | 2759 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 47,601 psi | 86% | 2736 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 47,181 psi | 86% | 2740 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 92% | 49,066 psi | 89% | 2818 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 65% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,935 psi | 87% | 2694 fps | 99.8% |
| IMR 3031 | <<locked>> | 84% | 49,603 psi | 90% | 2726 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 47,355 psi | 86% | 2674 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,850 psi | 90% | 2697 fps | 97.1% |
| IMR 4350 | <<locked>> | 94% | 49,240 psi | 89% | 2733 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,572 psi | 86% | 2684 fps | 96.5% |
| IMR 4831 | <<locked>> | 98% | 48,138 psi | 87% | 2756 fps | 99.1% |
| IMR 4895 | <<locked>> | 82% | 46,789 psi | 85% | 2717 fps | 99.6% |
| Lovex S062 | <<locked>> | 84% | 47,877 psi | 87% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 47,210 psi | 86% | 2684 fps | 97.8% |
| Lovex S070 | <<locked>> | 92% | 47,863 psi | 87% | 2713 fps | 96.9% |
| Norma 201 | <<locked>> | 82% | 49,124 psi | 89% | 2694 fps | 100% |
| Norma 202 | <<locked>> | 82% | 49,748 psi | 90% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 84% | 47,979 psi | 87% | 2726 fps | 99.7% |
| Norma MRPᴾ | <<locked>> | 100% | 46,673 psi | 85% | 2828 fps | 96.3% |
| Norma URP | <<locked>> | 94% | 49,139 psi | 89% | 2789 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 84% | 48,138 psi | 87% | 2746 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 94% | 47,848 psi | 87% | 2779 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 66% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 49,690 psi | 90% | 2726 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 48,834 psi | 89% | 2799 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,254 psi | 88% | 2835 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 49,458 psi | 90% | 2818 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 48,849 psi | 89% | 2838 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 82% | 46,818 psi | 85% | 2648 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 88% | 48,776 psi | 89% | 2730 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 90% | 48,965 psi | 89% | 2707 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 47,210 psi | 86% | 2684 fps | 97.8% |
| Shooters World Precision | <<locked>> | 84% | 47,877 psi | 87% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 47,863 psi | 87% | 2713 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 46,847 psi | 85% | 2733 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 48,834 psi | 89% | 2717 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 47,659 psi | 86% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,934 psi | 85% | 2631 fps | 96.4% |
| Somchem S355 | <<locked>> | 88% | 48,950 psi | 89% | 2726 fps | 99.9% |
| Somchem S365 | <<locked>> | 96% | 47,398 psi | 86% | 2795 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 46,833 psi | 85% | 2723 fps | 95.8% |
| Unknown powder | <<locked>> | 90% | 46,920 psi | 85% | 2743 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 47,500 psi | 86% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 49,574 psi | 90% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 49,458 psi | 90% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 47,268 psi | 86% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 47,166 psi | 86% | 2717 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 49,139 psi | 89% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 47,471 psi | 86% | 2756 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,296 psi | 84% | 2785 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 47,935 psi | 87% | 2713 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 47,210 psi | 86% | 2759 fps | 96.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,362 psi | 68% | 2717 fps | 99.4% |
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% | 44,077 psi | 80% | 2585 fps | 100% |
| Accurate 3100 | <<locked>> | 96% | 38,174 psi | 69% | 2562 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,669 psi | 76% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,895 psi | 60% | 2461 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 40,030 psi | 73% | 2543 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,279 psi | 79% | 2733 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,987 psi | 73% | 2569 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,815 psi | 78% | 2631 fps | 98.7% |
| Alliant Reloder-16 | 43.5 gr | 82% | 32,967 psi | 60% | 2470 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,693 psi | 63% | 2543 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,574 psi | 55% | 2434 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,317 psi | 64% | 2612 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,470 psi | 84% | 2697 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 39,813 psi | 72% | 2572 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 45,919 psi | 83% | 2651 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 40,596 psi | 74% | 2579 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 86% | 43,990 psi | 80% | 2697 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,543 psi | 52% | 2323 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,365 psi | 75% | 2631 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 90% | 45,687 psi | 83% | 2756 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 48% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,366 psi | 77% | 2592 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 43,787 psi | 79% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,378 psi | 71% | 2523 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 84% | 44,208 psi | 80% | 2592 fps | 95.7% |
| IMR 4350 | <<locked>> | 92% | 46,224 psi | 84% | 2680 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,206 psi | 77% | 2582 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 32,895 psi | 60% | 2444 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 43,888 psi | 80% | 2661 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 42,090 psi | 76% | 2579 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 39,276 psi | 71% | 2526 fps | 95.8% |
| Lovex S070 | <<locked>> | 88% | 42,409 psi | 77% | 2608 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,311 psi | 84% | 2648 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,601 psi | 85% | 2651 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,192 psi | 77% | 2621 fps | 98.9% |
| Norma MRP | <<locked>> | 98% | 43,729 psi | 79% | 2769 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 33,127 psi | 60% | 2461 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 42,032 psi | 76% | 2635 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 39,508 psi | 72% | 2615 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 49% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,857 psi | 74% | 2559 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,397 psi | 82% | 2736 fps | 99.1% |
| ReloadSwiss RS 60 | 45.8 gr | 80% | 36,941 psi | 67% | 2608 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,969 psi | 63% | 2533 fps | 95.5% |
| ReloadSwiss RS 70 | 50 gr | 86% | 37,362 psi | 68% | 2598 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 44,150 psi | 80% | 2598 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,347 psi | 68% | 2516 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 45,919 psi | 83% | 2651 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,276 psi | 71% | 2526 fps | 95.8% |
| Shooters World Precision | <<locked>> | 80% | 42,090 psi | 76% | 2579 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 42,409 psi | 77% | 2608 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,290 psi | 69% | 2566 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,556 psi | 83% | 2661 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,798 psi | 72% | 2464 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,034 psi | 80% | 2579 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 38,247 psi | 69% | 2526 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 27,920 psi | 51% | 2359 fps | 96.4% |
| Somchem S385 | <<locked>> | 96% | 43,903 psi | 80% | 2671 fps | 95% |
| Unknown powder | <<locked>> | 82% | 35,984 psi | 65% | 2516 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 44,759 psi | 81% | 2539 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,859 psi | 80% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,685 psi | 79% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,735 psi | 59% | 2382 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 80% | 33,634 psi | 61% | 2438 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 43,265 psi | 79% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,301 psi | 62% | 2484 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 30,966 psi | 56% | 2454 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,039 psi | 58% | 2385 fps | 96.9% |
| Winchester 760 | <<locked>> | 86% | 43,990 psi | 80% | 2697 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,877 psi | 52% | 2454 fps | 95.4% |
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 65 R Brenneke loaded with the .284 | 145gr | Speer Grand Slam. Alliant Reloder-26 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,871 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 (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for 7 x 65 R Brenneke with the .284 | 145gr | Speer Grand Slam they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, ADI AR 2213, Alliant Reloder-19 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.