Load data for 6.5 PRC + .264 | 144gr | Sierra MatchKing

6.5 PRC cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:144 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:9.0

Load data in caliber 6.5 PRC with .264 | 144gr | Sierra MatchKing bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>84%57,551 psi89%2740 fps99.8%
Accurate 3100<<locked>>96%56,565 psi87%2795 fps100%
Accurate 4350<<locked>>88%58,059 psi89%2825 fps100%
Accurate MAGPRO<<locked>>96%55,666 psi86%2890 fps97.5%
ADI AR 2208<<locked>>82%55,883 psi86%2736 fps100%
ADI AR 2209<<locked>>92%55,027 psi85%2828 fps99.4%
ADI AR 2213<<locked>>96%56,521 psi87%2890 fps98.9%
ADI AR 2217ᴾ<<locked>>100%47,108 psi73%2726 fps97.6%
ADI AR 2225ᴾ<<locked>>100%42,047 psi65%2690 fps99.1%
Alliant Reloder- TS 15.5<<locked>>82%57,188 psi88%2759 fps100%
Alliant Reloder-16<<locked>>90%58,769 psi90%2877 fps100%
Alliant Reloder-17<<locked>>84%56,405 psi87%2844 fps100%
Alliant Reloder-19<<locked>>94%58,407 psi90%2874 fps99.7%
Alliant Reloder-22<<locked>>96%56,362 psi87%2887 fps99.6%
Alliant Reloder-23<<locked>>98%57,290 psi88%2851 fps100%
Alliant Reloder-25ᴾ<<locked>>100%53,055 psi82%2861 fps100%
Alliant Reloder-26<<locked>>94%58,146 psi89%2949 fps100%
Baschieri & Pellagri 109<<locked>>98%58,494 psi90%2851 fps96.8%
Bofors RP15ᴾ<<locked>>100%58,784 psi90%2920 fps99.7%
Bofors RP3<<locked>>82%58,088 psi89%2772 fps100%
Bofors RP30ᴾ<<locked>>100%49,037 psi75%2802 fps98.3%
Bofors RP5<<locked>>96%56,362 psi87%2887 fps99.6%
Bofors RP7<<locked>>86%57,058 psi88%2776 fps99.9%
Hodgdon H1000ᴾ<<locked>>100%48,370 psi74%2753 fps98.4%
Hodgdon H380<<locked>>82%58,073 psi89%2795 fps100%
Hodgdon H414<<locked>>84%57,159 psi88%2844 fps100%
Hodgdon H4350<<locked>>88%57,551 psi89%2818 fps99.7%
Hodgdon H4831<<locked>>98%55,941 psi86%2822 fps98.3%
Hodgdon H4831 SC<<locked>>94%55,288 psi85%2812 fps98.2%
Hodgdon Hybrid 100V<<locked>>90%55,550 psi85%2753 fps100%
Hodgdon Retumboᴾ<<locked>>100%51,938 psi80%2927 fps99.8%
Hodgdon Superformance<<locked>>86%56,449 psi87%2864 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,115 psi57%1729 fps100%
Hodgdon VARGET<<locked>>82%58,740 psi90%2769 fps100%
IMR 4064<<locked>>84%58,204 psi90%2756 fps100%
IMR 4166 Enduron<<locked>>84%56,565 psi87%2746 fps100%
IMR 4350<<locked>>90%58,494 psi90%2815 fps99.9%
IMR 4451 Enduron<<locked>>86%58,436 psi90%2799 fps100%
IMR 4831<<locked>>92%55,970 psi86%2785 fps100%
IMR 4955 Enduron<<locked>>94%57,740 psi89%2815 fps98.7%
IMR 7828 SSC<<locked>>96%58,465 psi90%2933 fps99.2%
Lovex S065<<locked>>86%55,492 psi85%2743 fps100%
Lovex S070<<locked>>88%57,188 psi88%2792 fps100%
Lovex S071ᴾ<<locked>>100%53,969 psi83%2759 fps100%
Norma 204<<locked>>88%55,970 psi86%2818 fps99.4%
Norma 217ᴾ<<locked>>100%37,550 psi58%2618 fps97.4%
Norma MRP<<locked>>94%56,217 psi87%2907 fps100%
Norma URP<<locked>>88%56,492 psi87%2812 fps100%
Ramshot Grand<<locked>>94%58,349 psi90%2940 fps99.5%
Ramshot Hunter<<locked>>88%55,376 psi85%2818 fps100%
Ramshot Magnum<<locked>>96%55,245 psi85%2858 fps99.9%
ReloadSwiss RS 14ᴾ<<locked>>100%37,739 psi58%1768 fps100%
ReloadSwiss RS 50<<locked>>82%57,812 psi89%2782 fps100%
ReloadSwiss RS 60<<locked>>82%55,869 psi86%2828 fps100%
ReloadSwiss RS 62<<locked>>88%58,015 psi89%2851 fps100%
ReloadSwiss RS 70<<locked>>88%56,362 psi87%2881 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%52,373 psi81%2923 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%47,239 psi73%2805 fps96.5%
Rottweil R 903<<locked>>84%58,291 psi90%2772 fps100%
Rottweil R 904<<locked>>92%56,521 psi87%2802 fps98.9%
Rottweil R 905<<locked>>94%57,609 psi89%2861 fps99.7%
Rottweil R 907<<locked>>86%57,058 psi88%2776 fps99.9%
Shooters World Long Rifle<<locked>>86%55,492 psi85%2743 fps100%
Shooters World SW4350<<locked>>88%57,188 psi88%2792 fps100%
SNPE Vectan SP 11<<locked>>82%56,362 psi87%2782 fps100%
SNPE Vectan Tubal 5000<<locked>>84%58,392 psi90%2644 fps100%
SNPE Vectan Tubal 7000<<locked>>88%58,624 psi90%2753 fps100%
SNPE Vectan Tubal 8000<<locked>>94%57,159 psi88%2854 fps99.7%
Somchem S355<<locked>>84%57,914 psi89%2766 fps100%
Somchem S361<<locked>>92%57,972 psi89%2792 fps98.5%
Somchem S365<<locked>>90%56,768 psi87%2812 fps100%
Somchem S385<<locked>>94%58,175 psi90%2831 fps99.9%
Unknown powder<<locked>>86%56,768 psi87%2812 fps100%
Vihtavuori N150<<locked>>88%56,289 psi87%2703 fps100%
Vihtavuori N160<<locked>>86%57,101 psi88%2779 fps100%
Vihtavuori N165<<locked>>98%55,695 psi86%2785 fps99.7%
Vihtavuori N550<<locked>>86%57,754 psi89%2828 fps100%
Vihtavuori N555<<locked>>94%56,144 psi86%2831 fps100%
Vihtavuori N560<<locked>>96%56,666 psi87%2913 fps98.7%
Vihtavuori N565ᴾ<<locked>>100%55,550 psi85%2877 fps98.7%
Vihtavuori N568ᴾ<<locked>>100%48,414 psi75%2808 fps96.2%
Winchester 6.5 StaBALL<<locked>>88%57,769 psi89%2759 fps100%
Winchester 760<<locked>>84%57,159 psi88%2844 fps100%
Winchester StaBALL HD<<locked>>98%54,476 psi84%2933 fps100%
Winchester Supreme 780<<locked>>92%56,202 psi86%2802 fps99.5%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>80%50,763 psi78%2638 fps99.3%
Accurate 3100<<locked>>80%33,083 psi51%2372 fps97.1%
Accurate 4350<<locked>>80%44,440 psi68%2615 fps100%
Accurate MAGPRO55.6 gr92%48,428 psi75%2769 fps95.8%
ADI AR 2208<<locked>>80%52,605 psi81%2687 fps100%
ADI AR 2209<<locked>>80%37,028 psi57%2490 fps95.6%
ADI AR 2213<<locked>>86%40,321 psi62%2592 fps95.2%
ADI AR 2217<<locked>>96%41,408 psi64%2612 fps95.9%
ADI AR 2225<<locked>>92%32,518 psi50%2457 fps95.7%
Alliant Reloder- TS 15.5<<locked>>80%53,809 psi83%2710 fps100%
Alliant Reloder-16<<locked>>80%42,569 psi66%2621 fps100%
Alliant Reloder-17<<locked>>80%48,994 psi75%2736 fps100%
Alliant Reloder-19<<locked>>80%37,115 psi57%2490 fps95.7%
Alliant Reloder-22<<locked>>82%35,172 psi54%2484 fps95.1%
Alliant Reloder-23<<locked>>80%31,720 psi49%2402 fps99.5%
Alliant Reloder-25<<locked>>80%27,659 psi43%2303 fps95.1%
Alliant Reloder-26<<locked>>80%34,418 psi53%2530 fps98.8%
Baschieri & Pellagri 109<<locked>>94%51,706 psi80%2740 fps95.2%
Bofors RP15<<locked>>86%37,449 psi58%2536 fps95.8%
Bofors RP3<<locked>>80%54,578 psi84%2726 fps100%
Bofors RP30<<locked>>92%37,318 psi57%2569 fps95.1%
Bofors RP5<<locked>>82%35,172 psi54%2484 fps95.1%
Bofors RP7<<locked>>80%47,456 psi73%2621 fps99%
Hodgdon H1000<<locked>>92%37,202 psi57%2520 fps95%
Hodgdon H380<<locked>>80%54,592 psi84%2746 fps100%
Hodgdon H414<<locked>>80%49,951 psi77%2733 fps99.7%
Hodgdon H4350<<locked>>80%44,802 psi69%2605 fps98.1%
Hodgdon H4831<<locked>>90%43,033 psi66%2598 fps95.5%
Hodgdon H4831 SC<<locked>>86%42,279 psi65%2585 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%40,176 psi62%2510 fps100%
Hodgdon Retumbo<<locked>>88%34,998 psi54%2556 fps95.5%
Hodgdon Superformance<<locked>>80%45,266 psi70%2684 fps99%
Hodgdon TrailBoss<<locked>>80%27,659 psi43%1542 fps100%
Hodgdon VARGET<<locked>>80%55,259 psi85%2720 fps100%
IMR 4064<<locked>>80%51,735 psi80%2664 fps100%
IMR 4166 Enduron<<locked>>80%50,372 psi78%2651 fps99.6%
IMR 4350<<locked>>80%42,714 psi66%2552 fps98.3%
IMR 4451 Enduron<<locked>>80%48,530 psi75%2641 fps99.4%
IMR 4831<<locked>>80%38,580 psi59%2493 fps99.6%
IMR 4955 Enduron<<locked>>84%42,163 psi65%2546 fps95.4%
IMR 7828 SSC<<locked>>86%41,336 psi64%2628 fps95.7%
Lovex S065<<locked>>80%46,267 psi71%2598 fps99.8%
Lovex S070<<locked>>80%44,585 psi69%2585 fps99.1%
Lovex S071<<locked>>80%28,456 psi44%2254 fps95.1%
Norma 204<<locked>>80%42,728 psi66%2589 fps97.2%
Norma 217<<locked>>96%33,040 psi51%2500 fps95.5%
Norma MRP47.5 gr80%34,432 psi53%2497 fps96.4%
Norma URP<<locked>>80%43,656 psi67%2605 fps99.9%
Ramshot Grand<<locked>>84%40,248 psi62%2618 fps95.8%
Ramshot Hunter<<locked>>80%42,525 psi65%2602 fps99.2%
Ramshot Magnum<<locked>>84%34,954 psi54%2477 fps95.9%
ReloadSwiss RS 14<<locked>>80%28,282 psi44%1578 fps100%
ReloadSwiss RS 50<<locked>>80%54,157 psi83%2730 fps100%
ReloadSwiss RS 60<<locked>>80%52,011 psi80%2776 fps100%
ReloadSwiss RS 62<<locked>>80%44,353 psi68%2638 fps99.9%
ReloadSwiss RS 70<<locked>>80%42,569 psi66%2651 fps99.8%
ReloadSwiss RS 76<<locked>>86%31,821 psi49%2464 fps95.1%
ReloadSwiss RS 80<<locked>>98%43,947 psi68%2740 fps95.5%
Rottweil R 903<<locked>>80%51,416 psi79%2677 fps100%
Rottweil R 904<<locked>>82%41,147 psi63%2530 fps95.7%
Rottweil R 905<<locked>>80%36,274 psi56%2470 fps95.6%
Rottweil R 907<<locked>>80%47,456 psi73%2621 fps99%
Shooters World Long Rifle<<locked>>80%46,267 psi71%2598 fps99.8%
Shooters World SW4350<<locked>>80%44,585 psi69%2585 fps99.1%
SNPE Vectan SP 11<<locked>>80%52,736 psi81%2733 fps100%
SNPE Vectan Tubal 5000<<locked>>80%51,561 psi79%2559 fps100%
SNPE Vectan Tubal 7000<<locked>>80%45,266 psi70%2546 fps99.1%
SNPE Vectan Tubal 8000<<locked>>80%35,955 psi55%2467 fps95.5%
Somchem S355<<locked>>80%51,242 psi79%2671 fps100%
Somchem S361<<locked>>82%41,872 psi64%2520 fps95.1%
Somchem S365<<locked>>80%40,422 psi62%2562 fps100%
Somchem S385<<locked>>80%36,999 psi57%2461 fps96.7%
Unknown powder<<locked>>80%46,746 psi72%2657 fps100%
Vihtavuori N150<<locked>>80%44,077 psi68%2523 fps100%
Vihtavuori N160<<locked>>80%46,804 psi72%2625 fps100%
Vihtavuori N165<<locked>>84%35,317 psi54%2418 fps95.8%
Vihtavuori N550<<locked>>80%47,529 psi73%2671 fps100%
Vihtavuori N555<<locked>>80%35,592 psi55%2474 fps99.4%
Vihtavuori N56051.1 gr88%43,149 psi66%2677 fps95.8%
Vihtavuori N565<<locked>>90%39,697 psi61%2592 fps95%
Vihtavuori N568<<locked>>98%45,382 psi70%2753 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%44,121 psi68%2566 fps100%
Winchester 760<<locked>>80%49,951 psi77%2733 fps99.7%
Winchester StaBALL HD<<locked>>80%28,166 psi43%2411 fps99.6%
Winchester Supreme 780<<locked>>80%36,709 psi56%2457 fps95.6%

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 85 powders for 6.5 PRC loaded with the .264 | 144gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,949 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.264" calls for a 1:9.0 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for 6.5 PRC with the .264 | 144gr | 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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