Load data for 6 mm BRA + .243 | 90gr | Impala RNFP KO

6 mm BRA cartridge drawing
Impala Bullets logo

Load Specifications

Bullet Manufacturer:Impala Bullets
Bullet Weight:90 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.56"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:40.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:8.5

Load data in caliber 6 mm BRA with .243 | 90gr | Impala RNFP KO bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.

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>>88%51,953 psi86%2822 fps100%
Accurate 2460<<locked>>86%54,056 psi90%2894 fps100%
Accurate 2495<<locked>>94%53,142 psi88%2890 fps100%
Accurate 2520<<locked>>88%51,503 psi86%2894 fps99.9%
Accurate 4064<<locked>>96%52,750 psi88%2927 fps100%
Accurate LT-30<<locked>>82%51,488 psi86%2762 fps100%
Accurate LT-32<<locked>>82%51,837 psi86%2779 fps99.8%
ADI AR 2206H<<locked>>92%53,650 psi89%2940 fps98.5%
ADI AR 2208<<locked>>96%51,213 psi85%2874 fps97.4%
ADI AR 2219<<locked>>82%51,576 psi86%2881 fps100%
ADI Benchmark 8208<<locked>>90%53,229 psi88%2900 fps99.3%
Alliant AR-Comp<<locked>>90%52,243 psi87%2897 fps100%
Alliant Power Pro 1200-R<<locked>>86%54,143 psi90%3002 fps99%
Alliant Power Pro 2000-MR<<locked>>94%52,736 psi88%3028 fps97.5%
Alliant Power Pro Varmint<<locked>>92%54,215 psi90%2953 fps99%
Alliant Reloder- TS 15.5<<locked>>98%53,621 psi89%2956 fps99.1%
Alliant Reloder-10x<<locked>>84%51,837 psi86%2835 fps100%
Alliant Reloder-15<<locked>>96%54,288 psi90%2969 fps98.2%
Alliant Reloder-17ᴾ<<locked>>100%50,720 psi84%2999 fps98.5%
Baschieri & Pellagri 106<<locked>>84%53,780 psi89%2805 fps100%
Baschieri & Pellagri 107<<locked>>92%52,823 psi88%2940 fps97.4%
Bofors RP3<<locked>>98%53,882 psi90%2966 fps99.2%
Hodgdon Benchmark<<locked>>88%52,518 psi87%2844 fps99.5%
Hodgdon BL-C2<<locked>>90%51,706 psi86%2927 fps99.5%
Hodgdon CFE223<<locked>>88%52,808 psi88%3009 fps98%
Hodgdon H322<<locked>>86%53,548 psi89%2910 fps100%
Hodgdon H335<<locked>>84%51,401 psi85%2884 fps100%
Hodgdon H380<<locked>>96%52,214 psi87%2917 fps96.5%
Hodgdon H4895<<locked>>92%54,027 psi90%2949 fps98.9%
Hodgdon Hybrid 100Vᴾ<<locked>>100%40,756 psi68%2726 fps96%
Hodgdon LEVERevolution<<locked>>94%52,417 psi87%2976 fps99.1%
Hodgdon TrailBossᴾ<<locked>>100%34,766 psi58%1775 fps100%
Hodgdon VARGET<<locked>>92%51,996 psi86%2897 fps98.6%
IMR 3031<<locked>>92%52,939 psi88%2949 fps100%
IMR 4064<<locked>>96%53,867 psi89%2910 fps98.1%
IMR 4198<<locked>>84%51,764 psi86%2792 fps100%
IMR 4895<<locked>>94%52,591 psi87%2956 fps98.4%
IMR 8208 XBR<<locked>>90%53,229 psi88%2900 fps99.3%
Lovex D073.5<<locked>>86%53,722 psi89%2894 fps99.7%
Lovex D073.6<<locked>>92%52,649 psi87%2923 fps99.9%
Lovex S060<<locked>>92%54,143 psi90%2871 fps98.5%
Lovex S062<<locked>>96%53,751 psi89%2920 fps99.4%
Norma 201<<locked>>92%53,243 psi88%2897 fps99.3%
Norma 202<<locked>>92%52,736 psi88%2900 fps100%
Norma 203B<<locked>>96%53,417 psi89%2959 fps98.5%
Ramshot Big Game<<locked>>96%53,679 psi89%2979 fps98.4%
Ramshot TAC<<locked>>90%53,795 psi89%2900 fps96.1%
Ramshot Wild Boar<<locked>>90%52,504 psi87%2927 fps98.3%
Ramshot X-Terminator<<locked>>86%51,517 psi86%2848 fps98%
ReloadSwiss RS 14ᴾ<<locked>>100%35,070 psi58%1818 fps100%
ReloadSwiss RS 40<<locked>>86%52,895 psi88%2890 fps99.8%
ReloadSwiss RS 52<<locked>>94%53,838 psi89%3035 fps98.1%
ReloadSwiss RS 60ᴾ<<locked>>100%54,056 psi90%3071 fps100%
Rottweil R 901<<locked>>88%52,025 psi86%2851 fps99.9%
Rottweil R 902<<locked>>94%53,476 psi89%2890 fps99.3%
Rottweil R 903ᴾ<<locked>>100%53,708 psi89%2953 fps99%
Shooters World Match Rifle<<locked>>92%52,649 psi87%2923 fps99.9%
Shooters World Precision<<locked>>96%53,751 psi89%2920 fps99.4%
Shooters World Tactical Rifle<<locked>>84%52,895 psi88%2854 fps99%
SNPE Vectan SP 10<<locked>>82%52,243 psi87%2890 fps100%
SNPE Vectan SP 11<<locked>>98%52,098 psi87%2963 fps98.2%
SNPE Vectan SP 3<<locked>>84%52,344 psi87%2848 fps100%
SNPE Vectan SP 7<<locked>>90%51,721 psi86%2874 fps96.2%
SNPE Vectan SP 9<<locked>>92%51,938 psi86%2904 fps98.2%
SNPE Vectan Tubal 3000<<locked>>90%51,547 psi86%2795 fps100%
SNPE Vectan Tubal 5000<<locked>>98%53,795 psi89%2831 fps100%
Somchem S321<<locked>>88%54,331 psi90%2936 fps99.5%
Somchem S335<<locked>>92%54,288 psi90%2848 fps100%
Somchem S341<<locked>>92%54,157 psi90%2923 fps98.4%
Somchem S355ᴾ<<locked>>100%54,114 psi90%2949 fps98.9%
Somchem S365ᴾ<<locked>>100%39,711 psi66%2779 fps97.3%
Vihtavuori N130<<locked>>86%51,779 psi86%2779 fps100%
Vihtavuori N133<<locked>>90%51,198 psi85%2785 fps100%
Vihtavuori N135<<locked>>94%51,851 psi86%2871 fps100%
Vihtavuori N140<<locked>>94%52,881 psi88%2874 fps100%
Vihtavuori N150ᴾ<<locked>>100%52,446 psi87%2887 fps99.5%
Vihtavuori N530<<locked>>90%53,751 psi89%2900 fps99.3%
Vihtavuori N540<<locked>>94%51,764 psi86%2877 fps100%
Winchester 6.5 StaBALLᴾ<<locked>>100%47,993 psi80%2818 fps97.9%
Winchester 748<<locked>>90%52,141 psi87%2943 fps99.7%
Winchester StaBALL Match<<locked>>92%51,605 psi86%2917 fps98.7%

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%41,234 psi69%2641 fps100%
Accurate 2460<<locked>>80%44,686 psi74%2736 fps99.5%
Accurate 2495<<locked>>80%34,867 psi58%2562 fps99.8%
Accurate 2520<<locked>>80%39,755 psi66%2680 fps98.5%
Accurate 4064<<locked>>80%32,895 psi55%2536 fps97.8%
Accurate LT-30<<locked>>80%48,704 psi81%2717 fps100%
Accurate LT-32<<locked>>80%49,095 psi82%2733 fps99.7%
ADI AR 2206H<<locked>>82%39,929 psi66%2677 fps95.5%
ADI AR 2208<<locked>>90%43,149 psi72%2726 fps95.6%
ADI AR 2219<<locked>>80%48,211 psi80%2825 fps100%
ADI Benchmark 8208<<locked>>80%39,581 psi66%2644 fps96.8%
Alliant AR-Comp<<locked>>80%38,072 psi63%2661 fps100%
Alliant Power Pro 1200-R<<locked>>80%45,266 psi75%2841 fps97.6%
Alliant Power Pro 2000-MR30.9 gr88%43,540 psi72%2844 fps95%
Alliant Power Pro Varmint<<locked>>80%38,159 psi63%2644 fps95.6%
Alliant Reloder- TS 15.5<<locked>>84%35,143 psi58%2595 fps95.1%
Alliant Reloder-10x<<locked>>80%46,369 psi77%2746 fps100%
Alliant Reloder-15<<locked>>86%40,306 psi67%2707 fps95%
Alliant Reloder-17<<locked>>92%39,450 psi66%2759 fps95.4%
Baschieri & Pellagri 106<<locked>>80%47,703 psi79%2710 fps100%
Baschieri & Pellagri 107<<locked>>86%43,845 psi73%2776 fps95.3%
Bofors RP3<<locked>>84%35,012 psi58%2602 fps95.2%
Hodgdon Benchmark<<locked>>80%41,756 psi69%2648 fps97.9%
Hodgdon BL-C2<<locked>>80%37,652 psi63%2657 fps97%
Hodgdon CFE223<<locked>>82%43,613 psi72%2835 fps95.9%
Hodgdon H322<<locked>>80%44,309 psi74%2756 fps99.9%
Hodgdon H335<<locked>>80%45,295 psi75%2779 fps99.7%
Hodgdon H380<<locked>>92%46,267 psi77%2812 fps95.1%
Hodgdon H4895<<locked>>80%38,058 psi63%2641 fps95.6%
Hodgdon Hybrid 100V<<locked>>98%38,203 psi63%2671 fps95.1%
Hodgdon LEVERevolution28.2 gr82%35,969 psi60%2644 fps95.3%
Hodgdon TrailBoss<<locked>>80%26,063 psi43%1588 fps100%
Hodgdon VARGET<<locked>>82%38,479 psi64%2638 fps95.6%
IMR 3031<<locked>>80%36,608 psi61%2654 fps99.6%
IMR 4064<<locked>>86%40,190 psi67%2657 fps95%
IMR 4198<<locked>>80%46,137 psi77%2703 fps100%
IMR 4895<<locked>>84%39,015 psi65%2694 fps95.3%
IMR 8208 XBR<<locked>>80%39,581 psi66%2644 fps96.8%
Lovex D073.5<<locked>>80%44,411 psi74%2736 fps98.7%
Lovex D073.6<<locked>>80%36,303 psi60%2615 fps97.7%
Lovex S060<<locked>>80%38,247 psi64%2569 fps95%
Lovex S062<<locked>>80%33,634 psi56%2516 fps95%
Norma 201<<locked>>80%37,463 psi62%2595 fps96.3%
Norma 202<<locked>>80%36,854 psi61%2605 fps98.4%
Norma 203B<<locked>>86%39,610 psi66%2697 fps95.5%
Ramshot Big Game<<locked>>88%41,785 psi69%2759 fps95.7%
Ramshot TAC<<locked>>88%50,575 psi84%2848 fps95.3%
Ramshot Wild Boar<<locked>>82%40,915 psi68%2707 fps95.7%
Ramshot X-Terminator<<locked>>80%42,554 psi71%2684 fps96%
ReloadSwiss RS 14<<locked>>80%26,440 psi44%1631 fps100%
ReloadSwiss RS 40<<locked>>80%44,092 psi73%2736 fps99%
ReloadSwiss RS 5229.3 gr86%41,742 psi69%2808 fps95.3%
ReloadSwiss RS 60<<locked>>84%32,793 psi54%2598 fps95.4%
Rottweil R 901<<locked>>80%41,350 psi69%2654 fps99%
Rottweil R 902<<locked>>80%35,752 psi59%2543 fps95.7%
Rottweil R 903<<locked>>88%37,260 psi62%2644 fps95.5%
Shooters World Match Rifle<<locked>>80%36,303 psi60%2615 fps97.7%
Shooters World Precision<<locked>>80%33,634 psi56%2516 fps95%
Shooters World Tactical Rifle<<locked>>80%46,528 psi77%2746 fps98%
SNPE Vectan SP 10<<locked>>80%49,081 psi82%2838 fps99.9%
SNPE Vectan SP 11<<locked>>90%40,538 psi67%2740 fps95.4%
SNPE Vectan SP 3<<locked>>80%46,253 psi77%2749 fps100%
SNPE Vectan SP 7<<locked>>88%48,515 psi81%2818 fps95.5%
SNPE Vectan SP 9<<locked>>84%40,872 psi68%2697 fps95.7%
SNPE Vectan Tubal 3000<<locked>>80%38,580 psi64%2559 fps98.7%
SNPE Vectan Tubal 5000<<locked>>80%31,763 psi53%2421 fps98%
Somchem S321<<locked>>80%42,322 psi70%2723 fps97.8%
Somchem S335<<locked>>80%38,464 psi64%2572 fps99.2%
Somchem S341<<locked>>82%39,450 psi66%2654 fps95.2%
Somchem S355<<locked>>88%38,406 psi64%2654 fps95.6%
Somchem S365<<locked>>96%35,375 psi59%2671 fps95.8%
Vihtavuori N130<<locked>>80%43,482 psi72%2644 fps100%
Vihtavuori N133<<locked>>80%38,464 psi64%2566 fps99.9%
Vihtavuori N135<<locked>>80%34,026 psi57%2543 fps99.7%
Vihtavuori N140<<locked>>80%35,027 psi58%2543 fps98.3%
Vihtavuori N150<<locked>>84%32,329 psi54%2490 fps95.1%
Vihtavuori N530<<locked>>80%39,523 psi66%2641 fps96.9%
Vihtavuori N540<<locked>>80%33,678 psi56%2523 fps97.4%
Winchester 6.5 StaBALL<<locked>>94%39,595 psi66%2654 fps95.6%
Winchester 748<<locked>>80%38,072 psi63%2674 fps97.4%
Winchester StaBALL Match<<locked>>82%37,550 psi62%2644 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 81 powders for 6 mm BRA loaded with the .243 | 90gr | Impala RNFP KO. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,071 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for 6 mm BRA with the .243 | 90gr | Impala RNFP KO 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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