Load Specifications
Load data in caliber 6.5 x 65 R with .263 | 139gr | Prvi Partizan SP BT bullet and 64 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Alliant Reloder-26 and Accurate High Country.
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>> | 92% | 46,673 psi | 85% | 2654 fps | 99.4% |
| Accurate 4350 | <<locked>> | 84% | 48,298 psi | 88% | 2694 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 47,674 psi | 87% | 2779 fps | 96.8% |
| ADI AR 2209 | <<locked>> | 90% | 49,226 psi | 89% | 2740 fps | 98% |
| ADI AR 2213 | <<locked>> | 92% | 46,963 psi | 85% | 2730 fps | 96.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,726 psi | 72% | 2638 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 49,313 psi | 89% | 2736 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 49,356 psi | 90% | 2753 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 49,821 psi | 90% | 2762 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 48,733 psi | 88% | 2726 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 94% | 49,777 psi | 90% | 2789 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 47,471 psi | 86% | 2726 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 46,891 psi | 85% | 2769 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 90% | 46,760 psi | 85% | 2792 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 49,066 psi | 89% | 2772 fps | 98.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,948 psi | 83% | 2749 fps | 96.8% |
| Bofors RP5 | <<locked>> | 94% | 49,777 psi | 90% | 2789 fps | 98.3% |
| Bofors RP7 | <<locked>> | 82% | 48,283 psi | 88% | 2641 fps | 98.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,226 psi | 89% | 2769 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 82% | 46,963 psi | 85% | 2687 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 82% | 49,763 psi | 90% | 2703 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,240 psi | 89% | 2717 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 49,501 psi | 90% | 2680 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,023 psi | 89% | 2874 fps | 99% |
| Hodgdon Superformance | <<locked>> | 84% | 49,864 psi | 90% | 2772 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 67% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 49,371 psi | 90% | 2680 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 49,676 psi | 90% | 2667 fps | 99.1% |
| IMR 4831 | <<locked>> | 86% | 48,965 psi | 89% | 2694 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,805 psi | 89% | 2674 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 94% | 48,109 psi | 87% | 2762 fps | 96.7% |
| Lovex S065 | <<locked>> | 82% | 47,210 psi | 86% | 2621 fps | 99.6% |
| Lovex S070 | <<locked>> | 84% | 48,399 psi | 88% | 2664 fps | 99.2% |
| Lovex S071 | <<locked>> | 98% | 47,790 psi | 87% | 2674 fps | 99.5% |
| Norma 204 | <<locked>> | 84% | 46,514 psi | 84% | 2667 fps | 97.3% |
| Norma MRP | <<locked>> | 92% | 49,429 psi | 90% | 2812 fps | 99.2% |
| Norma URP | <<locked>> | 84% | 47,384 psi | 86% | 2680 fps | 99.9% |
| Ramshot Grand | <<locked>> | 94% | 48,225 psi | 88% | 2779 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 86% | 49,385 psi | 90% | 2733 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 98% | 49,763 psi | 90% | 2779 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 68% | 1775 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 48,066 psi | 87% | 2713 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 49,690 psi | 90% | 2792 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,139 psi | 89% | 2867 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 88% | 47,442 psi | 86% | 2657 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 90% | 47,979 psi | 87% | 2713 fps | 98% |
| Rottweil R 907 | <<locked>> | 82% | 48,283 psi | 88% | 2641 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 47,210 psi | 86% | 2621 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 84% | 48,399 psi | 88% | 2664 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 49,385 psi | 90% | 2621 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 47,572 psi | 86% | 2707 fps | 97.9% |
| Somchem S361 | <<locked>> | 88% | 48,602 psi | 88% | 2651 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 46,847 psi | 85% | 2687 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 48,820 psi | 89% | 2697 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 48,994 psi | 89% | 2677 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 47,964 psi | 87% | 2671 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 84% | 48,254 psi | 88% | 2680 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 92% | 49,661 psi | 90% | 2749 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 49,545 psi | 90% | 2799 fps | 96.6% |
| Vihtavuori N565 | <<locked>> | 98% | 49,037 psi | 89% | 2779 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 47,979 psi | 87% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 46,963 psi | 85% | 2687 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 46,760 psi | 85% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 48,254 psi | 88% | 2684 fps | 97.8% |
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 3100 | <<locked>> | 80% | 31,270 psi | 57% | 2333 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 42,235 psi | 77% | 2585 fps | 99.6% |
| Accurate High Country | 49.9 gr | 86% | 41,495 psi | 75% | 2657 fps | 95% |
| ADI AR 2209 | <<locked>> | 84% | 40,234 psi | 73% | 2566 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 43,976 psi | 80% | 2671 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 35,070 psi | 64% | 2520 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 38,087 psi | 69% | 2513 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,509 psi | 74% | 2592 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,296 psi | 84% | 2707 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,234 psi | 73% | 2562 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,058 psi | 69% | 2556 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,023 psi | 54% | 2359 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,849 psi | 54% | 2369 fps | 95.1% |
| Alliant Reloder-26 | 47.8 gr | 80% | 32,358 psi | 59% | 2477 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 40,335 psi | 73% | 2605 fps | 95.8% |
| Bofors RP30 | <<locked>> | 96% | 40,205 psi | 73% | 2635 fps | 95% |
| Bofors RP5 | <<locked>> | 86% | 38,058 psi | 69% | 2556 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,310 psi | 82% | 2589 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 40,393 psi | 73% | 2589 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 43,801 psi | 79% | 2628 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 46,731 psi | 85% | 2648 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,137 psi | 84% | 2661 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,116 psi | 69% | 2480 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,695 psi | 68% | 2621 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 42,931 psi | 78% | 2644 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 50% | 1549 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,872 psi | 74% | 2520 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,673 psi | 85% | 2615 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 40,306 psi | 73% | 2533 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,614 psi | 83% | 2615 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 45,034 psi | 82% | 2703 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 44,382 psi | 81% | 2569 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 42,699 psi | 77% | 2556 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 30,690 psi | 56% | 2316 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 40,567 psi | 74% | 2549 fps | 95.6% |
| Norma MRP | <<locked>> | 82% | 34,867 psi | 63% | 2507 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 41,568 psi | 75% | 2572 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 41,872 psi | 76% | 2651 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 40,292 psi | 73% | 2562 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 37,173 psi | 67% | 2530 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,224 psi | 51% | 1585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,945 psi | 76% | 2602 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,393 psi | 73% | 2615 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,505 psi | 63% | 2536 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 86% | 44,512 psi | 81% | 2602 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 84% | 39,363 psi | 71% | 2546 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 45,310 psi | 82% | 2589 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,382 psi | 81% | 2569 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 42,699 psi | 77% | 2556 fps | 98.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,468 psi | 79% | 2520 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,015 psi | 71% | 2539 fps | 95.5% |
| Somchem S361 | <<locked>> | 86% | 45,469 psi | 83% | 2592 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 38,174 psi | 69% | 2533 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,215 psi | 64% | 2425 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 80% | 43,033 psi | 78% | 2572 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,970 psi | 67% | 2457 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 42,250 psi | 77% | 2572 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,576 psi | 61% | 2434 fps | 98.4% |
| Vihtavuori N560 | <<locked>> | 90% | 46,180 psi | 84% | 2736 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 45,658 psi | 83% | 2717 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,018 psi | 76% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,048 psi | 80% | 2631 fps | 98.3% |
| Winchester StaBALL HD | 45.9 gr | 80% | 26,542 psi | 48% | 2349 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,262 psi | 71% | 2513 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 64 powders for 6.5 x 65 R loaded with the .263 | 139gr | Prvi Partizan SP BT. Hodgdon Retumbo delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,874 fps. ADI AR 2225 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.263" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Bofors RP30, Hodgdon H1000 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. Winchester StaBALL HD, Alliant Reloder-26, Accurate High Country rank at the top here: for 6.5 x 65 R with the .263 | 139gr | Prvi Partizan SP 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.