Load data for 6.5 x 65 R + .264 | 142gr | Sierra MatchKing

6.5 x 65 R cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:142 gr
Bullet Diameter:0.264"
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:1:8.5

Load data in caliber 6.5 x 65 R with .264 | 142gr | Sierra MatchKing 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 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"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>94%49,124 psi89%2661 fps99.6%
Accurate 4350<<locked>>84%47,442 psi86%2648 fps100%
Accurate High Country<<locked>>90%46,572 psi85%2730 fps96.7%
ADI AR 2209<<locked>>90%48,356 psi88%2690 fps97.9%
ADI AR 2213<<locked>>94%49,139 psi89%2736 fps96.9%
ADI AR 2225ᴾ<<locked>>100%38,914 psi71%2589 fps97.4%
Alliant Reloder-16<<locked>>86%48,515 psi88%2707 fps100%
Alliant Reloder-17<<locked>>82%48,994 psi89%2717 fps100%
Alliant Reloder-19<<locked>>90%47,892 psi87%2680 fps97.9%
Alliant Reloder-22<<locked>>94%48,747 psi88%2736 fps98.2%
Alliant Reloder-23<<locked>>96%49,588 psi90%2726 fps100%
Alliant Reloder-25ᴾ<<locked>>100%48,863 psi89%2772 fps100%
Alliant Reloder-26<<locked>>92%49,095 psi89%2799 fps100%
Bofors RP15<<locked>>96%48,037 psi87%2723 fps97.9%
Bofors RP30ᴾ<<locked>>100%44,817 psi81%2700 fps96.6%
Bofors RP5<<locked>>94%48,747 psi88%2736 fps98.2%
Bofors RP7<<locked>>82%47,659 psi86%2598 fps98.6%
Hodgdon H1000ᴾ<<locked>>100%48,283 psi88%2717 fps97.5%
Hodgdon H414<<locked>>84%49,313 psi89%2694 fps99.2%
Hodgdon H4350<<locked>>82%48,950 psi89%2654 fps98.3%
Hodgdon H4831<<locked>>92%49,429 psi90%2687 fps96.3%
Hodgdon H4831 SC<<locked>>92%48,544 psi88%2671 fps96.1%
Hodgdon Hybrid 100V<<locked>>88%48,689 psi88%2635 fps100%
Hodgdon Retumboᴾ<<locked>>100%47,935 psi87%2822 fps98.8%
Hodgdon Superformance<<locked>>84%48,762 psi88%2720 fps99%
Hodgdon TrailBossᴾ<<locked>>100%36,709 psi67%1699 fps100%
IMR 4350<<locked>>86%48,660 psi88%2635 fps98.8%
IMR 4451 Enduron<<locked>>82%49,095 psi89%2625 fps99.1%
IMR 4831<<locked>>86%48,167 psi87%2644 fps100%
IMR 4955 Enduron<<locked>>90%48,037 psi87%2628 fps96.1%
IMR 7828 SSC<<locked>>94%47,152 psi86%2713 fps96.5%
Lovex S065<<locked>>84%49,400 psi90%2625 fps99.8%
Lovex S070<<locked>>84%47,587 psi86%2615 fps99.1%
Lovex S071<<locked>>98%47,021 psi85%2628 fps99.4%
Norma 204<<locked>>86%48,994 psi89%2677 fps97.9%
Norma MRP<<locked>>92%48,370 psi88%2759 fps99.1%
Norma URP<<locked>>86%49,705 psi90%2687 fps100%
Ramshot Grand<<locked>>94%47,050 psi85%2723 fps96.9%
Ramshot Hunter<<locked>>86%48,472 psi88%2687 fps99.6%
Ramshot Magnum<<locked>>98%48,776 psi89%2730 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%37,594 psi68%1742 fps100%
ReloadSwiss RS 62<<locked>>84%47,355 psi86%2667 fps99.9%
ReloadSwiss RS 70<<locked>>86%48,863 psi89%2743 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,051 psi87%2815 fps99.5%
Rottweil R 904<<locked>>88%46,789 psi85%2612 fps96.4%
Rottweil R 905<<locked>>90%47,326 psi86%2667 fps97.9%
Rottweil R 907<<locked>>82%47,659 psi86%2598 fps98.6%
Shooters World Long Rifle<<locked>>84%49,400 psi90%2625 fps99.8%
Shooters World SW4350<<locked>>84%47,587 psi86%2615 fps99.1%
SNPE Vectan Tubal 7000<<locked>>84%48,675 psi88%2579 fps99.1%
SNPE Vectan Tubal 8000<<locked>>90%46,920 psi85%2664 fps97.8%
Somchem S361<<locked>>88%47,732 psi87%2602 fps95.8%
Somchem S365<<locked>>88%49,284 psi89%2694 fps100%
Somchem S385<<locked>>90%47,950 psi87%2648 fps98.6%
Vihtavuori N150<<locked>>82%49,516 psi90%2585 fps100%
Vihtavuori N160<<locked>>84%48,153 psi87%2628 fps100%
Vihtavuori N165<<locked>>94%47,253 psi86%2628 fps98.2%
Vihtavuori N550<<locked>>84%47,500 psi86%2635 fps99.9%
Vihtavuori N555<<locked>>92%48,733 psi88%2700 fps100%
Vihtavuori N560<<locked>>92%48,602 psi88%2749 fps96.4%
Vihtavuori N565<<locked>>98%47,906 psi87%2726 fps96.5%
Winchester 6.5 StaBALL<<locked>>84%47,152 psi86%2592 fps100%
Winchester 760<<locked>>84%49,313 psi89%2694 fps99.2%
Winchester StaBALL HD<<locked>>98%49,240 psi89%2848 fps100%
Winchester Supreme 780<<locked>>92%47,253 psi86%2635 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%30,734 psi56%2293 fps95.3%
Accurate 4350<<locked>>80%41,510 psi75%2539 fps99.6%
Accurate High Country49.4 gr88%43,497 psi79%2667 fps95.8%
ADI AR 2209<<locked>>84%39,784 psi72%2523 fps95.6%
ADI AR 2213<<locked>>90%43,265 psi79%2621 fps95.2%
ADI AR 2225<<locked>>96%34,229 psi62%2470 fps95.4%
Alliant Reloder-16<<locked>>80%39,827 psi72%2546 fps99.6%
Alliant Reloder-17<<locked>>80%45,730 psi83%2664 fps100%
Alliant Reloder-19<<locked>>84%39,537 psi72%2516 fps95.6%
Alliant Reloder-22<<locked>>86%37,434 psi68%2513 fps95%
Alliant Reloder-23<<locked>>80%29,457 psi53%2320 fps98.4%
Alliant Reloder-25<<locked>>84%29,443 psi53%2333 fps95.1%
Alliant Reloder-2646.3 gr80%31,720 psi58%2434 fps97.2%
Bofors RP15<<locked>>90%39,494 psi72%2559 fps95.6%
Bofors RP30<<locked>>98%41,858 psi76%2641 fps95.7%
Bofors RP5<<locked>>86%37,434 psi68%2513 fps95%
Bofors RP7<<locked>>80%44,904 psi81%2549 fps98.1%
Hodgdon H1000<<locked>>96%42,366 psi77%2602 fps95.8%
Hodgdon H414<<locked>>80%43,221 psi78%2585 fps98.2%
Hodgdon H4350<<locked>>80%45,876 psi83%2598 fps97.7%
Hodgdon H4831<<locked>>90%46,195 psi84%2628 fps95.4%
Hodgdon H4831 SC<<locked>>90%45,368 psi82%2615 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%37,623 psi68%2441 fps99.8%
Hodgdon Retumbo<<locked>>92%37,072 psi67%2575 fps95.3%
Hodgdon Superformance<<locked>>80%42,061 psi76%2598 fps97.7%
Hodgdon TrailBoss<<locked>>80%27,514 psi50%1519 fps100%
IMR 4350<<locked>>80%40,306 psi73%2477 fps97%
IMR 4451 Enduron<<locked>>80%46,050 psi84%2569 fps98.6%
IMR 4831<<locked>>80%39,653 psi72%2490 fps99.4%
IMR 4955 Enduron<<locked>>88%45,049 psi82%2572 fps95.3%
IMR 7828 SSC<<locked>>92%44,092 psi80%2654 fps95.6%
Lovex S065<<locked>>80%43,700 psi79%2523 fps99.2%
Lovex S070<<locked>>80%42,076 psi76%2513 fps98.1%
Lovex S071<<locked>>84%30,124 psi55%2277 fps95%
Norma 204<<locked>>80%40,074 psi73%2510 fps95.6%
Norma MRP<<locked>>82%34,229 psi62%2467 fps95.3%
Norma URP<<locked>>80%40,886 psi74%2530 fps99.4%
Ramshot Grand<<locked>>92%43,845 psi80%2661 fps96%
Ramshot Hunter<<locked>>80%39,769 psi72%2523 fps98.2%
Ramshot Magnum<<locked>>90%36,405 psi66%2484 fps95.4%
ReloadSwiss RS 14<<locked>>80%28,137 psi51%1555 fps100%
ReloadSwiss RS 62<<locked>>80%41,104 psi75%2556 fps99.4%
ReloadSwiss RS 70<<locked>>80%39,697 psi72%2569 fps99.1%
ReloadSwiss RS 76<<locked>>92%36,347 psi66%2559 fps96.3%
Rottweil R 904<<locked>>86%43,816 psi80%2556 fps95.6%
Rottweil R 905<<locked>>84%38,856 psi71%2503 fps95.6%
Rottweil R 907<<locked>>80%44,904 psi81%2549 fps98.1%
Shooters World Long Rifle<<locked>>80%43,700 psi79%2523 fps99.2%
Shooters World SW4350<<locked>>80%42,076 psi76%2513 fps98.1%
SNPE Vectan Tubal 7000<<locked>>80%42,685 psi77%2470 fps98.1%
SNPE Vectan Tubal 8000<<locked>>84%38,493 psi70%2500 fps95.5%
Somchem S361<<locked>>86%44,817 psi81%2549 fps95%
Somchem S365<<locked>>80%37,463 psi68%2490 fps100%
Somchem S385<<locked>>82%36,854 psi67%2434 fps95.9%
Vihtavuori N150<<locked>>80%46,340 psi84%2536 fps100%
Vihtavuori N160<<locked>>80%42,424 psi77%2530 fps99.6%
Vihtavuori N165<<locked>>86%36,332 psi66%2418 fps95.2%
Vihtavuori N550<<locked>>80%41,713 psi76%2530 fps99.4%
Vihtavuori N555<<locked>>80%32,880 psi60%2392 fps98.4%
Vihtavuori N560<<locked>>90%45,150 psi82%2687 fps95.5%
Vihtavuori N565<<locked>>96%44,802 psi81%2671 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%41,147 psi75%2493 fps100%
Winchester 760<<locked>>80%43,221 psi78%2585 fps98.2%
Winchester StaBALL HD44.5 gr80%26,165 psi47%2313 fps98%
Winchester Supreme 780<<locked>>86%38,450 psi70%2467 fps95.2%

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 .264 | 142gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,848 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 142.0 gr projectile in 0.264" calls for a 1:8.5 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, Accurate High Country rank at the top here: for 6.5 x 65 R with the .264 | 142gr | Sierra MatchKing 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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