Load data for 6 mm B.R. Rem. + .243 | 95gr | Sierra MatchKing

6 mm B.R. Rem. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:95 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.55"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:37.8 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:8.5

Load data in caliber 6 mm B.R. Rem. with .243 | 95gr | Sierra MatchKing bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and Alliant Power Pro 1200-R.

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 2015<<locked>>92%50,357 psi86%2694 fps100%
Accurate 2200<<locked>>84%51,285 psi87%2766 fps96.9%
Accurate 2230<<locked>>84%51,343 psi87%2769 fps97.3%
Accurate 2460<<locked>>90%52,243 psi89%2756 fps99.9%
Accurate 2495ᴾ<<locked>>100%52,228 psi89%2779 fps100%
Accurate 2520<<locked>>94%52,794 psi90%2805 fps99.8%
Accurate 4064ᴾ<<locked>>100%48,428 psi82%2759 fps99.9%
Accurate LT-30<<locked>>86%52,025 psi89%2651 fps100%
Accurate LT-32<<locked>>86%52,446 psi89%2667 fps99.8%
ADI AR 2206H<<locked>>96%52,417 psi89%2802 fps98%
ADI AR 2207<<locked>>84%52,518 psi89%2677 fps100%
ADI AR 2208ᴾ<<locked>>100%50,053 psi85%2736 fps96.8%
ADI AR 2219<<locked>>86%50,908 psi87%2756 fps100%
ADI Benchmark 8208<<locked>>94%51,996 psi89%2766 fps98.9%
Alliant AR-Comp<<locked>>94%50,038 psi85%2762 fps100%
Alliant Power Pro 1200-R<<locked>>88%49,792 psi85%2815 fps98.2%
Alliant Power Pro 2000-MR<<locked>>98%51,706 psi88%2881 fps96.7%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%48,341 psi82%2759 fps98.2%
Alliant Reloder-10x<<locked>>88%50,357 psi86%2703 fps100%
Alliant Reloder-15ᴾ<<locked>>100%52,953 psi90%2828 fps97.6%
Alliant Reloder-17ᴾ<<locked>>100%43,163 psi73%2730 fps96.1%
Alliant Reloder-7<<locked>>82%50,923 psi87%2654 fps100%
Baschieri & Pellagri 106<<locked>>86%50,560 psi86%2644 fps100%
Baschieri & Pellagri 107<<locked>>96%51,866 psi88%2805 fps96.8%
Bofors RP3ᴾ<<locked>>100%48,240 psi82%2766 fps98.2%
Hodgdon Benchmark<<locked>>92%51,532 psi88%2713 fps99.2%
Hodgdon BL-C2<<locked>>94%50,024 psi85%2789 fps99.1%
Hodgdon CFE223<<locked>>92%52,156 psi89%2874 fps97.5%
Hodgdon H322<<locked>>90%52,663 psi90%2782 fps100%
Hodgdon H335<<locked>>88%50,299 psi86%2756 fps99.9%
Hodgdon H4198<<locked>>82%50,850 psi87%2654 fps100%
Hodgdon H4895<<locked>>96%52,736 psi90%2815 fps98.5%
Hodgdon LEVERevolution<<locked>>98%51,039 psi87%2838 fps98.6%
Hodgdon TrailBossᴾ<<locked>>100%33,605 psi57%1660 fps100%
Hodgdon VARGET<<locked>>96%51,126 psi87%2766 fps98.2%
IMR 3031<<locked>>96%51,111 psi87%2815 fps100%
IMR 4064ᴾ<<locked>>100%52,663 psi90%2772 fps97.5%
IMR 4198<<locked>>88%51,343 psi87%2674 fps100%
IMR 4895<<locked>>98%50,778 psi86%2812 fps97.8%
IMR 8208 XBR<<locked>>94%51,996 psi89%2766 fps98.9%
Lovex D073.4<<locked>>84%52,431 psi89%2769 fps99.7%
Lovex D073.5<<locked>>90%52,214 psi89%2759 fps99.4%
Lovex D073.6<<locked>>96%50,691 psi86%2785 fps99.7%
Lovex S060<<locked>>94%50,589 psi86%2694 fps97.6%
Lovex S062ᴾ<<locked>>100%51,808 psi88%2776 fps98.9%
Norma 200<<locked>>84%50,691 psi86%2684 fps100%
Norma 201<<locked>>96%51,169 psi87%2753 fps98.8%
Norma 202<<locked>>96%51,532 psi88%2772 fps99.9%
Norma 203Bᴾ<<locked>>100%51,967 psi88%2818 fps98%
Ramshot Big Gameᴾ<<locked>>100%52,634 psi90%2841 fps97.8%
Ramshot Wild Boar<<locked>>94%51,401 psi88%2792 fps97.7%
Ramshot X-Terminator<<locked>>90%50,488 psi86%2717 fps97.4%
ReloadSwiss RS 14ᴾ<<locked>>100%33,765 psi57%1703 fps100%
ReloadSwiss RS 40<<locked>>90%52,344 psi89%2766 fps99.7%
ReloadSwiss RS 52<<locked>>98%51,982 psi88%2884 fps97.4%
ReloadSwiss RS 60ᴾ<<locked>>100%46,180 psi79%2805 fps99.1%
Rottweil R 901<<locked>>94%52,562 psi89%2753 fps99.9%
Rottweil R 902<<locked>>98%51,561 psi88%2749 fps98.8%
Rottweil R 903ᴾ<<locked>>100%44,889 psi76%2703 fps97.3%
Shooters World AR Plus<<locked>>84%52,431 psi89%2769 fps99.7%
Shooters World Match Rifle<<locked>>96%50,691 psi86%2785 fps99.7%
Shooters World Precisionᴾ<<locked>>100%51,808 psi88%2776 fps98.9%
Shooters World Tactical Rifle<<locked>>88%52,837 psi90%2733 fps98.7%
SNPE Vectan BA6 1/2<<locked>>84%52,939 psi90%2431 fps100%
SNPE Vectan SP 10<<locked>>86%51,343 psi87%2762 fps99.9%
SNPE Vectan SP 11ᴾ<<locked>>100%47,079 psi80%2759 fps96.8%
SNPE Vectan SP 3<<locked>>88%51,547 psi88%2723 fps100%
SNPE Vectan SP 9<<locked>>96%50,691 psi86%2769 fps97.6%
SNPE Vectan Tubal 3000<<locked>>94%50,691 psi86%2667 fps99.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%49,792 psi85%2664 fps100%
Somchem S321<<locked>>90%50,067 psi85%2756 fps98.9%
Somchem S335<<locked>>96%52,649 psi90%2713 fps100%
Somchem S341<<locked>>96%53,127 psi90%2789 fps97.9%
Somchem S355ᴾ<<locked>>100%45,788 psi78%2703 fps97.2%
Vihtavuori N120<<locked>>84%52,489 psi89%2625 fps100%
Vihtavuori N130<<locked>>90%50,662 psi86%2654 fps100%
Vihtavuori N133<<locked>>94%50,198 psi85%2664 fps100%
Vihtavuori N135ᴾ<<locked>>100%52,808 psi90%2776 fps100%
Vihtavuori N140<<locked>>98%51,793 psi88%2746 fps100%
Vihtavuori N150ᴾ<<locked>>100%44,570 psi76%2651 fps98.2%
Vihtavuori N530<<locked>>94%52,620 psi90%2766 fps99%
Vihtavuori N540<<locked>>98%49,864 psi85%2740 fps99.8%
Winchester 748<<locked>>94%50,952 psi87%2808 fps99.4%
Winchester StaBALL Match<<locked>>96%49,908 psi85%2776 fps98.1%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%34,418 psi59%2415 fps99.5%
Accurate 2200<<locked>>80%44,889 psi76%2654 fps95.4%
Accurate 2230<<locked>>80%44,889 psi76%2661 fps95.9%
Accurate 2460<<locked>>80%37,115 psi63%2493 fps98%
Accurate 2495<<locked>>80%27,195 psi46%2306 fps98.2%
Accurate 2520<<locked>>80%32,547 psi55%2434 fps96.3%
Accurate 4064<<locked>>82%27,296 psi46%2323 fps95.6%
Accurate LT-30<<locked>>80%43,250 psi74%2513 fps99.8%
Accurate LT-32<<locked>>80%43,627 psi74%2523 fps98.9%
ADI AR 2206H<<locked>>88%40,973 psi70%2598 fps95.4%
ADI AR 2207<<locked>>80%46,369 psi79%2589 fps100%
ADI AR 2208<<locked>>96%44,469 psi76%2641 fps95.5%
ADI AR 2219<<locked>>80%41,553 psi71%2602 fps99.6%
ADI Benchmark 8208<<locked>>82%35,708 psi61%2461 fps95.2%
Alliant AR-Comp<<locked>>80%31,734 psi54%2438 fps100%
Alliant Power Pro 1200-R23.3 gr80%38,377 psi65%2595 fps95.5%
Alliant Power Pro 2000-MR<<locked>>94%45,397 psi77%2762 fps95%
Alliant Reloder- TS 15.5<<locked>>92%37,478 psi64%2556 fps95.6%
Alliant Reloder-10x<<locked>>80%39,392 psi67%2523 fps100%
Alliant Reloder-15<<locked>>94%43,584 psi74%2671 fps95.6%
Alliant Reloder-17<<locked>>98%40,466 psi69%2671 fps95.2%
Alliant Reloder-7<<locked>>80%47,703 psi81%2605 fps100%
Baschieri & Pellagri 106<<locked>>80%41,626 psi71%2503 fps99.8%
Baschieri & Pellagri 107<<locked>>92%45,672 psi78%2700 fps95.3%
Bofors RP3<<locked>>92%36,637 psi62%2552 fps95.4%
Hodgdon Benchmark<<locked>>80%35,998 psi61%2425 fps96%
Hodgdon BL-C2<<locked>>82%33,286 psi57%2467 fps95.2%
Hodgdon CFE22327.3 gr86%42,525 psi72%2700 fps95.1%
Hodgdon H322<<locked>>80%37,913 psi65%2530 fps99.1%
Hodgdon H335<<locked>>80%38,769 psi66%2552 fps98.6%
Hodgdon H4198<<locked>>80%47,659 psi81%2602 fps99.9%
Hodgdon H4895<<locked>>86%38,551 psi66%2559 fps95.4%
Hodgdon LEVERevolution<<locked>>88%36,651 psi62%2562 fps95.1%
Hodgdon TrailBoss<<locked>>80%24,700 psi42%1480 fps100%
Hodgdon VARGET<<locked>>88%39,842 psi68%2566 fps95.6%
IMR 3031<<locked>>80%30,429 psi52%2418 fps98.1%
IMR 4064<<locked>>94%43,743 psi74%2625 fps95.6%
IMR 4198<<locked>>80%40,944 psi70%2510 fps100%
IMR 4895<<locked>>90%39,479 psi67%2605 fps95.1%
IMR 8208 XBR<<locked>>82%35,708 psi61%2461 fps95.2%
Lovex D073.4<<locked>>80%45,266 psi77%2654 fps99%
Lovex D073.5<<locked>>80%37,144 psi63%2497 fps96.9%
Lovex D073.6<<locked>>80%29,399 psi50%2369 fps95%
Lovex S060<<locked>>86%39,682 psi68%2497 fps95%
Lovex S062<<locked>>88%35,766 psi61%2484 fps95.5%
Norma 200<<locked>>80%44,947 psi77%2598 fps100%
Norma 201<<locked>>84%35,331 psi60%2457 fps95.3%
Norma 202<<locked>>80%30,951 psi53%2375 fps96.5%
Norma 203B<<locked>>92%40,001 psi68%2605 fps95.2%
Ramshot Big Game<<locked>>94%42,946 psi73%2674 fps95.6%
Ramshot Wild Boar<<locked>>88%41,959 psi71%2628 fps95.6%
Ramshot X-Terminator<<locked>>84%41,901 psi71%2566 fps95.4%
ReloadSwiss RS 14<<locked>>80%24,961 psi42%1519 fps100%
ReloadSwiss RS 40<<locked>>80%37,768 psi64%2507 fps97.4%
ReloadSwiss RS 5227.6 gr92%42,525 psi72%2717 fps95.2%
ReloadSwiss RS 60<<locked>>90%33,272 psi57%2510 fps95%
Rottweil R 901<<locked>>80%34,635 psi59%2421 fps97.3%
Rottweil R 902<<locked>>86%35,621 psi61%2454 fps95.3%
Rottweil R 903<<locked>>94%36,564 psi62%2543 fps95%
Shooters World AR Plus<<locked>>80%45,266 psi77%2654 fps99%
Shooters World Match Rifle<<locked>>80%29,399 psi50%2369 fps95%
Shooters World Precision<<locked>>88%35,766 psi61%2484 fps95.5%
Shooters World Tactical Rifle<<locked>>80%40,161 psi68%2520 fps96.2%
SNPE Vectan BA6 1/2<<locked>>80%47,964 psi82%2365 fps100%
SNPE Vectan SP 10<<locked>>80%42,351 psi72%2612 fps99.1%
SNPE Vectan SP 11<<locked>>96%41,466 psi71%2651 fps95.2%
SNPE Vectan SP 3<<locked>>80%40,176 psi68%2536 fps99.8%
SNPE Vectan SP 9<<locked>>90%41,858 psi71%2615 fps95.6%
SNPE Vectan Tubal 3000<<locked>>80%33,112 psi56%2346 fps97.1%
SNPE Vectan Tubal 5000<<locked>>80%26,803 psi46%2208 fps95.9%
Somchem S321<<locked>>80%35,505 psi60%2480 fps95.6%
Somchem S335<<locked>>80%32,605 psi56%2352 fps97.8%
Somchem S341<<locked>>88%40,480 psi69%2575 fps95.1%
Somchem S355<<locked>>94%38,014 psi65%2552 fps95.2%
Vihtavuori N120<<locked>>80%46,427 psi79%2543 fps100%
Vihtavuori N130<<locked>>80%37,652 psi64%2441 fps100%
Vihtavuori N133<<locked>>80%32,938 psi56%2356 fps99.1%
Vihtavuori N135<<locked>>80%27,949 psi48%2316 fps98.3%
Vihtavuori N140<<locked>>80%29,153 psi50%2313 fps96.1%
Vihtavuori N150<<locked>>92%34,432 psi59%2454 fps95.6%
Vihtavuori N530<<locked>>82%35,607 psi61%2457 fps95.3%
Vihtavuori N540<<locked>>80%28,137 psi48%2300 fps95%
Winchester 748<<locked>>82%34,374 psi59%2493 fps95.9%
Winchester StaBALL Match<<locked>>88%38,464 psi65%2566 fps95.4%

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.

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

This overview compares 84 powders for 6 mm B.R. Rem. loaded with the .243 | 95gr | Sierra MatchKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,884 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. ReloadSwiss RS 52, Hodgdon CFE223, Alliant Power Pro 1200-R rank at the top here: for 6 mm B.R. Rem. with the .243 | 95gr | 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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