Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .263 | 140gr | Prvi Partizan PSP bullet and 77 powders. The key underlying parameters are shown in the table above.
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 3100 | <<locked>> | 96% | 54,157 psi | 87% | 2766 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 55,825 psi | 90% | 2802 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,593 psi | 89% | 2907 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 56,434 psi | 90% | 2910 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 53,983 psi | 87% | 2713 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,040 psi | 85% | 2799 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 54,302 psi | 87% | 2854 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,266 psi | 73% | 2684 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,089 psi | 64% | 2641 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,143 psi | 88% | 2736 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,968 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,157 psi | 87% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,115 psi | 90% | 2841 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,969 psi | 87% | 2848 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,737 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,488 psi | 81% | 2825 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,042 psi | 88% | 2913 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,362 psi | 90% | 2884 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 56,260 psi | 90% | 2756 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,427 psi | 74% | 2753 fps | 97.1% |
| Bofors RP5 | <<locked>> | 96% | 53,969 psi | 87% | 2848 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 55,158 psi | 88% | 2749 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,951 psi | 80% | 2772 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 56,362 psi | 90% | 2776 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,215 psi | 87% | 2802 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 53,432 psi | 86% | 2756 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 54,360 psi | 87% | 2795 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,084 psi | 85% | 2772 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,417 psi | 86% | 2730 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2874 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 54,114 psi | 87% | 2831 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 59% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,272 psi | 85% | 2736 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,258 psi | 85% | 2720 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 56,144 psi | 90% | 2792 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,680 psi | 89% | 2782 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 55,463 psi | 89% | 2884 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 53,925 psi | 86% | 2723 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,288 psi | 89% | 2766 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2726 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 53,737 psi | 86% | 2782 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 53,708 psi | 86% | 2874 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 54,418 psi | 87% | 2785 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,246 psi | 90% | 2907 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 53,084 psi | 85% | 2789 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,244 psi | 87% | 2841 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,724 psi | 60% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,956 psi | 90% | 2759 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,447 psi | 86% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,854 psi | 90% | 2825 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,925 psi | 86% | 2851 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,893 psi | 80% | 2877 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 56,434 psi | 90% | 2753 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,375 psi | 87% | 2766 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 55,564 psi | 89% | 2831 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 55,158 psi | 88% | 2749 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,925 psi | 86% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,288 psi | 89% | 2766 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,346 psi | 87% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,301 psi | 85% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,084 psi | 85% | 2674 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,100 psi | 88% | 2825 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 56,217 psi | 90% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,999 psi | 90% | 2762 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 54,491 psi | 87% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,869 psi | 90% | 2802 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 53,896 psi | 86% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,202 psi | 90% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,419 psi | 89% | 2782 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 55,434 psi | 89% | 2782 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,577 psi | 86% | 2799 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,751 psi | 86% | 2864 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2835 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,883 psi | 90% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,215 psi | 87% | 2802 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2953 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,999 psi | 90% | 2799 fps | 99.1% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 31,676 psi | 51% | 2336 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 42,699 psi | 68% | 2589 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 41,989 psi | 67% | 2661 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 92% | 48,950 psi | 78% | 2785 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 50,705 psi | 81% | 2664 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,101 psi | 61% | 2510 fps | 95% |
| ADI AR 2213 | <<locked>> | 90% | 44,396 psi | 71% | 2671 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 98% | 42,395 psi | 68% | 2625 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 35,389 psi | 57% | 2523 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,779 psi | 83% | 2687 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,959 psi | 66% | 2592 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,833 psi | 75% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,130 psi | 61% | 2510 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,508 psi | 62% | 2559 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,400 psi | 49% | 2365 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,168 psi | 48% | 2372 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,750 psi | 53% | 2480 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 38,218 psi | 61% | 2552 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,489 psi | 84% | 2703 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,698 psi | 65% | 2638 fps | 95.3% |
| Bofors RP5 | <<locked>> | 86% | 38,508 psi | 62% | 2559 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 45,730 psi | 73% | 2589 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,756 psi | 65% | 2595 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 52,634 psi | 84% | 2720 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,266 psi | 71% | 2631 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 46,891 psi | 75% | 2644 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 88% | 44,411 psi | 71% | 2621 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,543 psi | 75% | 2661 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,595 psi | 62% | 2484 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,087 psi | 61% | 2625 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 43,395 psi | 70% | 2648 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 44% | 1542 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,292 psi | 66% | 2523 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,108 psi | 76% | 2615 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 40,770 psi | 65% | 2536 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,282 psi | 74% | 2621 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 42,641 psi | 68% | 2651 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 44,773 psi | 72% | 2569 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 43,091 psi | 69% | 2559 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 30,922 psi | 50% | 2316 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 41,002 psi | 66% | 2552 fps | 95.9% |
| Norma MRP | <<locked>> | 82% | 35,273 psi | 57% | 2510 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 42,047 psi | 67% | 2575 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,293 psi | 68% | 2654 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 40,727 psi | 65% | 2566 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 90% | 37,579 psi | 60% | 2533 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 45% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,620 psi | 84% | 2710 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,719 psi | 80% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,424 psi | 68% | 2602 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,814 psi | 65% | 2618 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,027 psi | 56% | 2546 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 49,690 psi | 80% | 2654 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,148 psi | 68% | 2549 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 82% | 37,231 psi | 60% | 2490 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,730 psi | 73% | 2589 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,773 psi | 72% | 2569 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 43,091 psi | 69% | 2559 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,749 psi | 81% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,995 psi | 80% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,874 psi | 70% | 2520 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,450 psi | 63% | 2543 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 49,617 psi | 80% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,861 psi | 74% | 2595 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 38,682 psi | 62% | 2533 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,404 psi | 57% | 2421 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 47,471 psi | 76% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,511 psi | 70% | 2575 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,362 psi | 60% | 2461 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 42,699 psi | 68% | 2572 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,026 psi | 55% | 2438 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 88% | 43,729 psi | 70% | 2680 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 43,221 psi | 69% | 2661 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,424 psi | 68% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,512 psi | 71% | 2635 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,861 psi | 43% | 2359 fps | 98.4% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,711 psi | 64% | 2516 fps | 95.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 83 powders for 6.5 x 64 Brenneke loaded with the .263 | 140gr | Prvi Partizan PSP. Winchester StaBALL HD delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,953 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.263" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, ReloadSwiss RS 80 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.