Load data for 6.5 x 65 R + .263 | 139gr | Prvi Partizan FMJ BT

6.5 x 65 R cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:139 gr
Bullet Diameter:0.263"
Bullet Length:<<locked>>
Case Length (l3):2.559"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:10.0

Load data in caliber 6.5 x 65 R with .263 | 139gr | Prvi Partizan FMJ 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 Winchester StaBALL HD, Alliant Reloder-26 and Ramshot Grand.

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"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>94%49,763 psi90%2703 fps99.7%
Accurate 4350<<locked>>84%47,834 psi87%2684 fps100%
Accurate High Country<<locked>>90%47,268 psi86%2772 fps96.7%
ADI AR 2209<<locked>>90%48,863 psi89%2730 fps97.9%
ADI AR 2213<<locked>>94%49,719 psi90%2779 fps96.9%
ADI AR 2225ᴾ<<locked>>100%39,450 psi72%2628 fps97.5%
Alliant Power Pro Varmint<<locked>>90%49,211 psi89%2733 fps98%
Alliant Reloder-16<<locked>>86%48,921 psi89%2746 fps100%
Alliant Reloder-17<<locked>>82%49,676 psi90%2759 fps100%
Alliant Reloder-19<<locked>>90%48,631 psi88%2723 fps97.9%
Alliant Reloder-22<<locked>>94%49,385 psi90%2779 fps98.2%
Alliant Reloder-23<<locked>>94%47,036 psi85%2717 fps100%
Alliant Reloder-25ᴾ<<locked>>100%49,647 psi90%2815 fps100%
Alliant Reloder-26<<locked>>90%46,383 psi84%2785 fps100%
Bofors RP15<<locked>>96%48,675 psi88%2766 fps97.9%
Bofors RP30ᴾ<<locked>>100%45,571 psi83%2743 fps96.7%
Bofors RP5<<locked>>94%49,385 psi90%2779 fps98.2%
Bofors RP7<<locked>>82%48,109 psi87%2638 fps98.6%
Hodgdon H1000ᴾ<<locked>>100%48,950 psi89%2759 fps97.6%
Hodgdon H414<<locked>>82%46,557 psi84%2677 fps98.8%
Hodgdon H4350<<locked>>82%49,356 psi90%2694 fps98.3%
Hodgdon H4831 SC<<locked>>92%48,878 psi89%2710 fps96.1%
Hodgdon Hybrid 100V<<locked>>88%49,400 psi90%2677 fps100%
Hodgdon Retumboᴾ<<locked>>100%48,660 psi88%2864 fps98.9%
Hodgdon Superformance<<locked>>84%49,443 psi90%2762 fps99%
Hodgdon TrailBossᴾ<<locked>>100%36,738 psi67%1729 fps100%
IMR 4350<<locked>>86%49,240 psi89%2677 fps98.8%
IMR 4451 Enduron<<locked>>82%49,530 psi90%2664 fps99.1%
IMR 4831<<locked>>86%48,544 psi88%2684 fps100%
IMR 4955 Enduron<<locked>>90%48,428 psi88%2667 fps96.2%
IMR 7828 SSC<<locked>>94%47,761 psi87%2756 fps96.6%
Lovex S065<<locked>>84%49,835 psi90%2664 fps99.8%
Lovex S070<<locked>>84%47,993 psi87%2654 fps99.1%
Lovex S071<<locked>>98%47,427 psi86%2664 fps99.4%
Norma 204<<locked>>86%49,516 psi90%2720 fps97.9%
Norma MRP<<locked>>92%48,979 psi89%2802 fps99.2%
Norma URP<<locked>>84%46,949 psi85%2674 fps99.9%
Ramshot Grand<<locked>>94%47,819 psi87%2769 fps97%
Ramshot Hunter<<locked>>86%48,979 psi89%2726 fps99.6%
Ramshot Magnum<<locked>>98%49,414 psi90%2769 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%37,608 psi68%1772 fps100%
ReloadSwiss RS 62<<locked>>84%47,921 psi87%2710 fps99.9%
ReloadSwiss RS 70<<locked>>86%49,574 psi90%2785 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,834 psi89%2861 fps99.6%
Rottweil R 904<<locked>>88%47,355 psi86%2651 fps96.5%
Rottweil R 905<<locked>>90%47,863 psi87%2710 fps97.9%
Rottweil R 907<<locked>>82%48,109 psi87%2638 fps98.6%
Shooters World Long Rifle<<locked>>84%49,835 psi90%2664 fps99.8%
Shooters World SW4350<<locked>>84%47,993 psi87%2654 fps99.1%
SNPE Vectan Tubal 7000<<locked>>84%48,994 psi89%2615 fps99.1%
SNPE Vectan Tubal 8000<<locked>>90%47,456 psi86%2707 fps97.8%
Somchem S361<<locked>>88%48,283 psi88%2641 fps95.9%
Somchem S365<<locked>>86%46,673 psi85%2684 fps100%
Somchem S385<<locked>>90%48,399 psi88%2687 fps98.6%
Vihtavuori N150<<locked>>82%49,719 psi90%2621 fps100%
Vihtavuori N160<<locked>>84%48,573 psi88%2667 fps100%
Vihtavuori N165<<locked>>94%47,863 psi87%2667 fps98.3%
Vihtavuori N550<<locked>>84%48,109 psi87%2674 fps99.9%
Vihtavuori N555<<locked>>92%49,530 psi90%2746 fps100%
Vihtavuori N560<<locked>>92%49,153 psi89%2792 fps96.5%
Vihtavuori N565<<locked>>98%48,689 psi88%2769 fps96.6%
Winchester 6.5 StaBALL<<locked>>84%47,877 psi87%2638 fps100%
Winchester 760<<locked>>82%46,862 psi85%2684 fps98.8%
Winchester StaBALL HD<<locked>>96%46,267 psi84%2831 fps100%
Winchester Supreme 780<<locked>>92%47,863 psi87%2677 fps97.7%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%30,937 psi56%2323 fps95.2%
Accurate 4350<<locked>>80%41,785 psi76%2575 fps99.6%
Accurate High Country<<locked>>88%44,237 psi80%2713 fps95.9%
ADI AR 2209<<locked>>84%40,147 psi73%2562 fps95.6%
ADI AR 2213<<locked>>90%43,613 psi79%2661 fps95.2%
ADI AR 2225<<locked>>96%34,809 psi63%2513 fps95.5%
Alliant Power Pro Varmint<<locked>>84%40,277 psi73%2559 fps95.7%
Alliant Reloder-16<<locked>>80%40,364 psi73%2585 fps99.6%
Alliant Reloder-17<<locked>>80%46,166 psi84%2703 fps100%
Alliant Reloder-19<<locked>>84%39,871 psi72%2552 fps95.6%
Alliant Reloder-22<<locked>>86%37,942 psi69%2552 fps95.1%
Alliant Reloder-23<<locked>>80%29,878 psi54%2356 fps98.4%
Alliant Reloder-25<<locked>>84%29,733 psi54%2365 fps95.1%
Alliant Reloder-2647.6 gr80%32,227 psi58%2474 fps97.2%
Bofors RP15<<locked>>90%40,001 psi73%2598 fps95.7%
Bofors RP30<<locked>>98%42,627 psi77%2684 fps95.8%
Bofors RP5<<locked>>86%37,942 psi69%2552 fps95.1%
Bofors RP7<<locked>>80%45,179 psi82%2582 fps98%
Hodgdon H1000<<locked>>96%42,786 psi78%2641 fps95.9%
Hodgdon H414<<locked>>80%43,656 psi79%2625 fps98.2%
Hodgdon H4350<<locked>>80%46,340 psi84%2638 fps97.7%
Hodgdon H4831 SC<<locked>>90%45,774 psi83%2651 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%37,942 psi69%2477 fps99.8%
Hodgdon Retumbo<<locked>>92%37,376 psi68%2608 fps95.2%
Hodgdon Superformance<<locked>>80%42,554 psi77%2638 fps97.7%
Hodgdon TrailBoss<<locked>>80%27,543 psi50%1542 fps100%
IMR 4350<<locked>>80%40,756 psi74%2516 fps97%
IMR 4451 Enduron<<locked>>80%46,557 psi84%2612 fps98.6%
IMR 4831<<locked>>80%39,900 psi72%2526 fps99.4%
IMR 4955 Enduron<<locked>>88%45,527 psi83%2612 fps95.4%
IMR 7828 SSC<<locked>>92%44,715 psi81%2697 fps95.7%
Lovex S065<<locked>>80%44,222 psi80%2566 fps99.2%
Lovex S070<<locked>>80%42,525 psi77%2552 fps98.1%
Lovex S071<<locked>>86%32,518 psi59%2362 fps95.9%
Norma 204<<locked>>80%40,466 psi73%2546 fps95.6%
Norma MRP<<locked>>82%34,534 psi63%2500 fps95.3%
Norma URP<<locked>>80%41,423 psi75%2572 fps99.5%
Ramshot Grand51.5 gr90%41,510 psi75%2644 fps95%
Ramshot Hunter<<locked>>80%40,176 psi73%2559 fps98.2%
Ramshot Magnum<<locked>>90%36,883 psi67%2523 fps95.5%
ReloadSwiss RS 14<<locked>>80%28,152 psi51%1581 fps100%
ReloadSwiss RS 62<<locked>>80%41,785 psi76%2598 fps99.4%
ReloadSwiss RS 70<<locked>>80%40,030 psi73%2605 fps99.1%
ReloadSwiss RS 76<<locked>>90%34,432 psi62%2533 fps95.1%
Rottweil R 904<<locked>>86%44,425 psi81%2598 fps95.7%
Rottweil R 905<<locked>>84%39,218 psi71%2539 fps95.6%
Rottweil R 907<<locked>>80%45,179 psi82%2582 fps98%
Shooters World Long Rifle<<locked>>80%44,222 psi80%2566 fps99.2%
Shooters World SW4350<<locked>>80%42,525 psi77%2552 fps98.1%
SNPE Vectan Tubal 7000<<locked>>80%43,120 psi78%2510 fps98.1%
SNPE Vectan Tubal 8000<<locked>>84%38,856 psi71%2533 fps95.4%
Somchem S361<<locked>>86%45,397 psi82%2589 fps95.1%
Somchem S365<<locked>>80%38,014 psi69%2526 fps100%
Somchem S385<<locked>>80%34,882 psi63%2415 fps95%
Vihtavuori N150<<locked>>80%46,891 psi85%2575 fps100%
Vihtavuori N160<<locked>>80%42,641 psi77%2566 fps99.6%
Vihtavuori N165<<locked>>86%36,854 psi67%2454 fps95.3%
Vihtavuori N550<<locked>>80%42,134 psi76%2569 fps99.4%
Vihtavuori N555<<locked>>80%33,402 psi61%2428 fps98.4%
Vihtavuori N560<<locked>>90%45,803 psi83%2726 fps95.5%
Vihtavuori N565<<locked>>96%45,310 psi82%2710 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%41,669 psi76%2533 fps100%
Winchester 760<<locked>>80%43,656 psi79%2625 fps98.2%
Winchester StaBALL HD45.7 gr80%26,440 psi48%2346 fps98%
Winchester Supreme 780<<locked>>86%38,928 psi71%2503 fps95.3%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 65 powders for 6.5 x 65 R loaded with the .263 | 139gr | Prvi Partizan FMJ BT. Hodgdon Retumbo delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,864 fps. ADI AR 2225 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 67–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.263" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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, Ramshot Grand rank at the top here: for 6.5 x 65 R with the .263 | 139gr | Prvi Partizan FMJ 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.

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