Load Specifications
Load data in caliber 6 mm B.R. Norma with .243 | 90gr | Impala RNFP KO bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LEVERevolution, IMR 4895 and Winchester 748.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 51,590 psi | 88% | 2779 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 51,314 psi | 87% | 2841 fps | 96.6% |
| Accurate 2230 | <<locked>> | 82% | 52,112 psi | 89% | 2854 fps | 97.2% |
| Accurate 2460 | <<locked>> | 86% | 50,227 psi | 86% | 2792 fps | 99.7% |
| Accurate 2495 | <<locked>> | 96% | 51,953 psi | 88% | 2841 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 50,720 psi | 86% | 2844 fps | 99.6% |
| Accurate 4064 | <<locked>> | 98% | 51,198 psi | 87% | 2867 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 51,779 psi | 88% | 2723 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 52,170 psi | 89% | 2740 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 94% | 53,113 psi | 90% | 2884 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 98% | 50,865 psi | 87% | 2825 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 84% | 51,358 psi | 87% | 2838 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 52,649 psi | 90% | 2848 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 92% | 51,184 psi | 87% | 2851 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 50,676 psi | 86% | 2900 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 52,011 psi | 89% | 2959 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 52,736 psi | 90% | 2900 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 51,750 psi | 88% | 2795 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 50,430 psi | 86% | 2861 fps | 96.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,021 psi | 80% | 2874 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 50,488 psi | 86% | 2720 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 52,330 psi | 89% | 2887 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 52,982 psi | 90% | 2913 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 52,344 psi | 89% | 2795 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 50,734 psi | 86% | 2871 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 90% | 52,388 psi | 89% | 2956 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 88% | 52,939 psi | 90% | 2861 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 51,126 psi | 87% | 2841 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 92% | 50,488 psi | 86% | 2848 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 51,256 psi | 87% | 2913 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,301 psi | 58% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 51,503 psi | 88% | 2848 fps | 98% |
| IMR 3031 | <<locked>> | 94% | 51,663 psi | 88% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 50,473 psi | 86% | 2812 fps | 96.9% |
| IMR 4198 | <<locked>> | 86% | 51,459 psi | 88% | 2749 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 51,547 psi | 88% | 2897 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 92% | 52,649 psi | 90% | 2848 fps | 98.8% |
| Lovex D073.4 | <<locked>> | 82% | 52,910 psi | 90% | 2844 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 88% | 53,040 psi | 90% | 2844 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 94% | 51,866 psi | 88% | 2871 fps | 99.7% |
| Lovex S060 | <<locked>> | 92% | 50,792 psi | 86% | 2769 fps | 97.4% |
| Lovex S062 | <<locked>> | 98% | 52,736 psi | 90% | 2861 fps | 98.9% |
| Norma 200 | <<locked>> | 82% | 52,243 psi | 89% | 2776 fps | 100% |
| Norma 201 | <<locked>> | 94% | 52,547 psi | 89% | 2844 fps | 98.8% |
| Norma 202 | <<locked>> | 94% | 51,924 psi | 88% | 2851 fps | 99.9% |
| Norma 203B | <<locked>> | 98% | 52,504 psi | 89% | 2900 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 98% | 52,982 psi | 90% | 2920 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 92% | 51,793 psi | 88% | 2871 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 51,213 psi | 87% | 2799 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,577 psi | 59% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 52,562 psi | 89% | 2844 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 52,866 psi | 90% | 2972 fps | 97.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,125 psi | 85% | 2953 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 90% | 51,285 psi | 87% | 2799 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 96% | 52,881 psi | 90% | 2838 fps | 98.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,182 psi | 84% | 2841 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 82% | 52,910 psi | 90% | 2844 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 51,866 psi | 88% | 2871 fps | 99.7% |
| Shooters World Precision | <<locked>> | 98% | 52,736 psi | 90% | 2861 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 52,881 psi | 90% | 2808 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,084 psi | 90% | 2503 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 51,837 psi | 88% | 2844 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,242 psi | 87% | 2900 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 51,779 psi | 88% | 2802 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 51,706 psi | 88% | 2858 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 51,721 psi | 88% | 2756 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 50,314 psi | 86% | 2743 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 50,502 psi | 86% | 2835 fps | 98.7% |
| Somchem S335 | <<locked>> | 92% | 50,749 psi | 86% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 50,067 psi | 85% | 2815 fps | 97.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,343 psi | 86% | 2848 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 82% | 53,113 psi | 90% | 2707 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 51,503 psi | 88% | 2740 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 51,155 psi | 87% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 50,662 psi | 86% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 52,388 psi | 89% | 2828 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,341 psi | 82% | 2782 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 92% | 53,156 psi | 90% | 2848 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 96% | 51,039 psi | 87% | 2828 fps | 99.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,541 psi | 76% | 2707 fps | 96.1% |
| Winchester 748 | <<locked>> | 92% | 51,445 psi | 88% | 2890 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 94% | 50,836 psi | 87% | 2861 fps | 98% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,696 psi | 66% | 2559 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 48,327 psi | 82% | 2789 fps | 96% |
| Accurate 2230 | <<locked>> | 80% | 48,573 psi | 83% | 2792 fps | 96.4% |
| Accurate 2460 | <<locked>> | 80% | 41,321 psi | 70% | 2635 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 32,126 psi | 55% | 2470 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 36,956 psi | 63% | 2585 fps | 97.3% |
| Accurate 4064 | <<locked>> | 80% | 30,342 psi | 52% | 2441 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 80% | 46,079 psi | 78% | 2631 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 46,383 psi | 79% | 2644 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 42,163 psi | 72% | 2684 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 94% | 45,266 psi | 77% | 2723 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 44,976 psi | 77% | 2733 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,883 psi | 63% | 2546 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 35,259 psi | 60% | 2572 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,814 psi | 71% | 2733 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 48,994 psi | 83% | 2904 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 38,870 psi | 66% | 2644 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,207 psi | 74% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 44,889 psi | 76% | 2759 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 41,553 psi | 71% | 2759 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,817 psi | 76% | 2625 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 46,311 psi | 79% | 2782 fps | 95.1% |
| Bofors RP3 | <<locked>> | 90% | 38,754 psi | 66% | 2654 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,001 psi | 66% | 2549 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,693 psi | 59% | 2552 fps | 95.3% |
| Hodgdon CFE223 | <<locked>> | 86% | 45,701 psi | 78% | 2831 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 41,495 psi | 71% | 2667 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 80% | 42,076 psi | 72% | 2680 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 84% | 39,682 psi | 68% | 2641 fps | 95.4% |
| Hodgdon LEVERevolution | 27.5 gr | 86% | 37,724 psi | 64% | 2644 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 44% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 40,785 psi | 69% | 2648 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 33,852 psi | 58% | 2556 fps | 98.8% |
| IMR 4064 | <<locked>> | 92% | 44,918 psi | 76% | 2710 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 43,743 psi | 74% | 2628 fps | 100% |
| IMR 4895 | 27 gr | 88% | 40,814 psi | 69% | 2694 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 36,883 psi | 63% | 2546 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 49,792 psi | 85% | 2795 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 41,263 psi | 70% | 2635 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 33,489 psi | 57% | 2516 fps | 96.2% |
| Lovex S060 | <<locked>> | 86% | 42,801 psi | 73% | 2625 fps | 95.6% |
| Lovex S062 | <<locked>> | 86% | 37,246 psi | 63% | 2569 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 49,284 psi | 84% | 2730 fps | 100% |
| Norma 201 | <<locked>> | 82% | 37,144 psi | 63% | 2549 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 34,403 psi | 59% | 2513 fps | 97.3% |
| Norma 203B | <<locked>> | 90% | 41,626 psi | 71% | 2700 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 92% | 43,714 psi | 74% | 2756 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 43,091 psi | 73% | 2713 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 42,467 psi | 72% | 2638 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,831 psi | 44% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,220 psi | 70% | 2641 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 43,671 psi | 74% | 2805 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 34,592 psi | 59% | 2602 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 38,972 psi | 66% | 2566 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 37,376 psi | 64% | 2546 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 92% | 38,595 psi | 66% | 2641 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 49,792 psi | 85% | 2795 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,489 psi | 57% | 2516 fps | 96.2% |
| Shooters World Precision | <<locked>> | 86% | 37,246 psi | 63% | 2569 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,439 psi | 74% | 2644 fps | 96.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 50,531 psi | 86% | 2470 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,774 psi | 78% | 2743 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 42,772 psi | 73% | 2743 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,511 psi | 74% | 2664 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 43,062 psi | 73% | 2700 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,448 psi | 62% | 2474 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,849 psi | 51% | 2339 fps | 96.8% |
| Somchem S321 | <<locked>> | 80% | 39,305 psi | 67% | 2621 fps | 96.4% |
| Somchem S335 | <<locked>> | 80% | 36,027 psi | 61% | 2484 fps | 98.4% |
| Somchem S341 | <<locked>> | 86% | 41,655 psi | 71% | 2661 fps | 95% |
| Somchem S355 | <<locked>> | 92% | 39,842 psi | 68% | 2651 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 49,966 psi | 85% | 2664 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,089 psi | 70% | 2566 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,172 psi | 62% | 2484 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 31,604 psi | 54% | 2454 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 32,663 psi | 56% | 2451 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 90% | 35,810 psi | 61% | 2539 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 36,796 psi | 63% | 2539 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,531 psi | 54% | 2438 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 41,771 psi | 71% | 2651 fps | 95.3% |
| Winchester 748 | 25.7 gr | 80% | 35,505 psi | 60% | 2575 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 39,508 psi | 67% | 2648 fps | 95.3% |
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.
This overview compares 82 powders for 6 mm B.R. Norma loaded with the .243 | 90gr | Impala RNFP KO. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,972 fps. Alliant Reloder- TS 15.5 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 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- TS 15.5, Alliant Reloder-17, Bofors RP3 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. Hodgdon LEVERevolution, IMR 4895, Winchester 748 rank at the top here: for 6 mm B.R. Norma 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.