Load data for 6 mm B.R. Rem. + .243 | 85gr | Barnes TSX BT

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

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:85 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:1:9.5

Load data in caliber 6 mm B.R. Rem. with .243 | 85gr | Barnes TSX BT bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Hodgdon BL-C2.

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 1680<<locked>>82%50,749 psi86%2792 fps100%
Accurate 2015<<locked>>96%52,402 psi89%2897 fps100%
Accurate 2230<<locked>>86%51,140 psi87%2933 fps96.2%
Accurate 2460<<locked>>92%51,459 psi88%2917 fps99.5%
Accurate 2495ᴾ<<locked>>100%47,079 psi80%2881 fps100%
Accurate 2520<<locked>>96%51,663 psi88%2956 fps99.4%
Accurate 4064ᴾ<<locked>>100%43,714 psi74%2851 fps99.2%
Accurate LT-30<<locked>>88%52,025 psi89%2818 fps100%
Accurate LT-32<<locked>>88%52,475 psi89%2835 fps99.4%
ADI AR 2206H<<locked>>98%51,895 psi88%2959 fps97%
ADI AR 2207<<locked>>86%52,344 psi89%2854 fps100%
ADI AR 2219<<locked>>88%50,444 psi86%2923 fps99.9%
ADI Benchmark 8208<<locked>>96%51,764 psi88%2927 fps98.1%
Alliant AR-Comp<<locked>>98%52,547 psi89%2976 fps100%
Alliant Power Pro 1200-R<<locked>>92%52,402 psi89%3031 fps97.8%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%44,353 psi76%2851 fps96.4%
Alliant Reloder-10x<<locked>>92%52,982 psi90%2920 fps100%
Alliant Reloder-15ᴾ<<locked>>100%48,820 psi83%2927 fps95.7%
Alliant Reloder-7<<locked>>84%50,140 psi85%2815 fps100%
Baschieri & Pellagri 106<<locked>>88%50,618 psi86%2812 fps100%
Bofors RP3ᴾ<<locked>>100%43,729 psi74%2851 fps96.4%
Hodgdon Benchmark<<locked>>94%51,140 psi87%2871 fps98.5%
Hodgdon BL-C2<<locked>>98%52,866 psi90%3002 fps98.8%
Hodgdon CFE223<<locked>>94%51,329 psi87%3025 fps96.2%
Hodgdon H322<<locked>>92%52,127 psi89%2949 fps100%
Hodgdon H335<<locked>>90%49,922 psi85%2920 fps99.5%
Hodgdon H4198<<locked>>84%50,560 psi86%2818 fps99.8%
Hodgdon H4895<<locked>>98%52,185 psi89%2972 fps97.6%
Hodgdon LEVERevolutionᴾ<<locked>>100%50,082 psi85%2986 fps97.6%
Hodgdon TrailBossᴾ<<locked>>100%32,996 psi56%1768 fps100%
Hodgdon VARGET<<locked>>98%50,865 psi87%2927 fps97.2%
IMR 3031<<locked>>98%49,937 psi85%2976 fps100%
IMR 4064ᴾ<<locked>>100%49,037 psi83%2874 fps95.7%
IMR 4198<<locked>>90%51,416 psi88%2851 fps100%
IMR 4895ᴾ<<locked>>100%49,966 psi85%2966 fps96.8%
IMR 8208 XBR<<locked>>96%51,764 psi88%2927 fps98.1%
Lovex D073.4<<locked>>86%51,576 psi88%2927 fps99.2%
Lovex D073.5<<locked>>92%51,314 psi87%2913 fps98.8%
Lovex D073.6ᴾ<<locked>>100%52,939 psi90%2989 fps99.5%
Lovex S053<<locked>>82%52,402 psi89%2756 fps100%
Lovex S060<<locked>>96%50,212 psi85%2848 fps96.6%
Lovex S062ᴾ<<locked>>100%47,776 psi81%2877 fps97.6%
Norma 200<<locked>>88%52,953 psi90%2897 fps100%
Norma 201<<locked>>98%50,082 psi85%2904 fps97.9%
Norma 202<<locked>>98%50,444 psi86%2927 fps99.6%
Norma 203Bᴾ<<locked>>100%47,819 psi81%2913 fps96.2%
Ramshot Big Gameᴾ<<locked>>100%48,327 psi82%2927 fps95.8%
Ramshot Wild Boar<<locked>>96%51,169 psi87%2949 fps96.7%
Ramshot X-Terminator<<locked>>92%50,169 psi85%2871 fps96.4%
ReloadSwiss RS 14ᴾ<<locked>>100%32,953 psi56%1811 fps100%
ReloadSwiss RS 40<<locked>>92%51,677 psi88%2927 fps99.1%
ReloadSwiss RS 52ᴾ<<locked>>100%51,547 psi88%3041 fps96.3%
ReloadSwiss RS 60ᴾ<<locked>>100%42,873 psi73%2887 fps97.4%
Rottweil R 901<<locked>>96%50,981 psi87%2904 fps99.5%
Rottweil R 902ᴾ<<locked>>100%50,430 psi86%2897 fps97.9%
Shooters World AR Plus<<locked>>86%51,576 psi88%2927 fps99.2%
Shooters World Match Rifleᴾ<<locked>>100%52,939 psi90%2989 fps99.5%
Shooters World Precisionᴾ<<locked>>100%47,776 psi81%2877 fps97.6%
Shooters World Tactical Rifle<<locked>>90%52,228 psi89%2887 fps97.8%
SNPE Vectan BA6 1/2<<locked>>86%53,040 psi90%2602 fps100%
SNPE Vectan SP 10<<locked>>88%51,155 psi87%2933 fps99.6%
SNPE Vectan SP 3<<locked>>90%51,010 psi87%2890 fps100%
SNPE Vectan SP 9<<locked>>98%50,038 psi85%2920 fps96.5%
SNPE Vectan Tubal 3000<<locked>>96%50,386 psi86%2828 fps99.5%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%45,876 psi78%2766 fps99.6%
Somchem S321<<locked>>94%52,649 psi90%2966 fps98.5%
Somchem S335<<locked>>98%51,779 psi88%2871 fps99.9%
Somchem S341<<locked>>98%52,736 psi90%2946 fps96.9%
Vihtavuori N120<<locked>>86%52,359 psi89%2805 fps100%
Vihtavuori N130<<locked>>92%50,546 psi86%2825 fps100%
Vihtavuori N133<<locked>>96%49,850 psi85%2828 fps100%
Vihtavuori N135ᴾ<<locked>>100%48,167 psi82%2884 fps100%
Vihtavuori N140ᴾ<<locked>>100%51,198 psi87%2907 fps99.8%
Vihtavuori N150ᴾ<<locked>>100%40,770 psi69%2740 fps96.4%
Vihtavuori N530<<locked>>96%52,344 psi89%2927 fps98.2%
Vihtavuori N540ᴾ<<locked>>100%49,008 psi83%2890 fps99.3%
Winchester 748<<locked>>96%50,154 psi85%2963 fps98.7%
Winchester StaBALL Matchᴾ<<locked>>100%52,881 psi90%2986 fps97.7%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%47,587 psi81%2743 fps100%
Accurate 2015<<locked>>80%31,401 psi53%2500 fps98.2%
Accurate 2230<<locked>>84%47,253 psi80%2867 fps95.3%
Accurate 2460<<locked>>80%33,895 psi58%2579 fps96.1%
Accurate 2495<<locked>>80%23,467 psi40%2349 fps95.5%
Accurate 2520<<locked>>84%33,736 psi57%2615 fps95.6%
Accurate 4064<<locked>>88%29,428 psi50%2533 fps95.4%
Accurate LT-30<<locked>>80%40,698 psi69%2625 fps99%
Accurate LT-32<<locked>>80%41,089 psi70%2631 fps97.6%
ADI AR 2206H<<locked>>94%45,672 psi78%2848 fps95.6%
ADI AR 2207<<locked>>80%43,323 psi74%2717 fps100%
ADI AR 2219<<locked>>80%38,159 psi65%2697 fps98.5%
ADI Benchmark 8208<<locked>>88%40,176 psi68%2713 fps95.5%
Alliant AR-Comp<<locked>>80%28,964 psi49%2523 fps99.5%
Alliant Power Pro 1200-R26 gr86%42,946 psi73%2858 fps95.7%
Alliant Reloder- TS 15.5<<locked>>98%41,524 psi71%2795 fps95.6%
Alliant Reloder-10x<<locked>>80%36,347 psi62%2628 fps99.8%
Alliant Reloder-15<<locked>>98%45,759 psi78%2871 fps95%
Alliant Reloder-7<<locked>>80%44,498 psi76%2726 fps100%
Baschieri & Pellagri 106<<locked>>80%38,972 psi66%2608 fps99%
Bofors RP3<<locked>>98%40,828 psi70%2795 fps95.6%
Hodgdon Benchmark<<locked>>84%37,884 psi64%2618 fps95.5%
Hodgdon BL-C228.3 gr88%37,217 psi63%2710 fps95.4%
Hodgdon CFE223<<locked>>92%48,153 psi82%2969 fps95.5%
Hodgdon H322<<locked>>80%34,911 psi59%2625 fps97.7%
Hodgdon H335<<locked>>80%35,360 psi60%2638 fps96.8%
Hodgdon H4198<<locked>>80%44,904 psi76%2720 fps99.2%
Hodgdon H4895<<locked>>92%43,062 psi73%2808 fps95.6%
Hodgdon LEVERevolution<<locked>>94%40,988 psi70%2808 fps95.3%
Hodgdon TrailBoss<<locked>>80%24,018 psi41%1575 fps100%
Hodgdon VARGET<<locked>>92%41,989 psi71%2762 fps95.1%
IMR 3031<<locked>>80%27,456 psi47%2484 fps95.8%
IMR 4064<<locked>>98%45,934 psi78%2818 fps95%
IMR 4198<<locked>>80%38,130 psi65%2621 fps100%
IMR 4895<<locked>>96%43,859 psi75%2854 fps95.3%
IMR 8208 XBR<<locked>>88%40,176 psi68%2713 fps95.5%
Lovex D073.4<<locked>>80%41,698 psi71%2753 fps97.6%
Lovex D073.5<<locked>>82%35,723 psi61%2621 fps95.3%
Lovex D073.6<<locked>>86%32,198 psi55%2589 fps95%
Lovex S053<<locked>>80%49,632 psi84%2717 fps100%
Lovex S060<<locked>>92%44,353 psi76%2743 fps95.2%
Lovex S062<<locked>>94%39,320 psi67%2713 fps95.4%
Norma 200<<locked>>80%40,814 psi69%2700 fps100%
Norma 201<<locked>>90%39,059 psi66%2694 fps95.3%
Norma 202<<locked>>84%31,821 psi54%2549 fps95.6%
Norma 203B<<locked>>98%44,802 psi76%2858 fps95.4%
Ramshot Big Game<<locked>>98%45,368 psi77%2871 fps95%
Ramshot Wild Boar<<locked>>92%44,599 psi76%2835 fps95.2%
Ramshot X-Terminator<<locked>>90%47,181 psi80%2818 fps95.7%
ReloadSwiss RS 14<<locked>>80%24,120 psi41%1617 fps100%
ReloadSwiss RS 40<<locked>>80%34,737 psi59%2592 fps95.4%
ReloadSwiss RS 52<<locked>>98%47,732 psi81%2976 fps95.4%
ReloadSwiss RS 60<<locked>>96%37,434 psi64%2759 fps95.4%
Rottweil R 901<<locked>>80%31,183 psi53%2493 fps95%
Rottweil R 902<<locked>>92%39,334 psi67%2690 fps95.4%
Shooters World AR Plus<<locked>>80%41,698 psi71%2753 fps97.6%
Shooters World Match Rifle<<locked>>86%32,198 psi55%2589 fps95%
Shooters World Precision<<locked>>94%39,320 psi67%2713 fps95.4%
Shooters World Tactical Rifle<<locked>>84%42,482 psi72%2717 fps95.7%
SNPE Vectan BA6 1/2<<locked>>80%45,165 psi77%2493 fps100%
SNPE Vectan SP 10<<locked>>80%38,812 psi66%2703 fps97.7%
SNPE Vectan SP 3<<locked>>80%36,811 psi63%2631 fps98.8%
SNPE Vectan SP 9<<locked>>94%44,077 psi75%2812 fps95.1%
SNPE Vectan Tubal 3000<<locked>>82%32,329 psi55%2474 fps95.7%
SNPE Vectan Tubal 5000<<locked>>84%27,833 psi47%2375 fps95.1%
Somchem S321<<locked>>84%37,420 psi64%2677 fps95.1%
Somchem S335<<locked>>80%29,515 psi50%2425 fps95.7%
Somchem S341<<locked>>94%45,847 psi78%2828 fps95.4%
Vihtavuori N120<<locked>>80%43,410 psi74%2671 fps100%
Vihtavuori N130<<locked>>80%34,534 psi59%2533 fps99.4%
Vihtavuori N133<<locked>>80%30,037 psi51%2438 fps97.7%
Vihtavuori N135<<locked>>80%25,005 psi43%2375 fps96%
Vihtavuori N140<<locked>>84%30,342 psi52%2490 fps95.4%
Vihtavuori N150<<locked>>98%38,189 psi65%2684 fps95.6%
Vihtavuori N530<<locked>>88%39,755 psi68%2700 fps95.5%
Vihtavuori N540<<locked>>86%30,908 psi53%2520 fps95%
Winchester 74827.2 gr86%35,955 psi61%2680 fps95.2%
Winchester StaBALL Match<<locked>>94%43,033 psi73%2812 fps95.5%

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 78 powders for 6 mm B.R. Rem. loaded with the .243 | 85gr | Barnes TSX BT. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,041 fps. Accurate 2495 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 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. Alliant Power Pro 1200-R, Winchester 748, Hodgdon BL-C2 rank at the top here: for 6 mm B.R. Rem. with the .243 | 85gr | Barnes TSX 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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