Load data for 6 x 47 SM + .243 | 90gr | Impala RNFP KO

6 x 47 SM 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):1.845"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:45.9 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:56,565 psi
Recommended Twist Rate:1:8.5

Load data in caliber 6 x 47 SM with .243 | 90gr | Impala RNFP KO bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Ramshot Big Game.

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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%49,966 psi88%2841 fps100%
Accurate 2495<<locked>>86%48,776 psi86%2867 fps100%
Accurate 2520<<locked>>82%49,356 psi87%2910 fps100%
Accurate 4064<<locked>>88%48,907 psi86%2910 fps100%
Accurate 4350<<locked>>98%49,937 psi88%2999 fps97.8%
ADI AR 2206H<<locked>>84%48,646 psi86%2913 fps98.6%
ADI AR 2208<<locked>>90%49,037 psi87%2904 fps98.1%
ADI Benchmark 8208<<locked>>84%50,676 psi90%2920 fps99.6%
Alliant AR-Comp<<locked>>84%50,531 psi89%2910 fps100%
Alliant Power Pro 2000-MR<<locked>>88%50,009 psi88%3058 fps98.3%
Alliant Reloder- TS 15.5<<locked>>90%49,124 psi87%2936 fps99.3%
Alliant Reloder-15<<locked>>88%49,705 psi88%2953 fps98.4%
Alliant Reloder-16ᴾ<<locked>>100%50,966 psi90%3045 fps98.3%
Alliant Reloder-17<<locked>>94%48,849 psi86%3035 fps99.2%
Alliant Reloder-23ᴾ<<locked>>100%37,260 psi66%2772 fps96.1%
Baschieri & Pellagri 107<<locked>>86%50,720 psi90%2969 fps98.1%
Bofors RP3<<locked>>90%49,472 psi87%2949 fps99.4%
Hodgdon Benchmark<<locked>>82%49,356 psi87%2854 fps99.7%
Hodgdon BL-C2<<locked>>84%49,516 psi88%2946 fps99.7%
Hodgdon CFE223<<locked>>82%50,560 psi89%3031 fps98.6%
Hodgdon H380<<locked>>90%50,517 psi89%2953 fps97.4%
Hodgdon H4895<<locked>>84%49,023 psi87%2927 fps99.1%
Hodgdon Hybrid 100Vᴾ<<locked>>100%47,558 psi84%2930 fps98.8%
Hodgdon LEVERevolution<<locked>>88%50,589 psi89%3005 fps99.5%
Hodgdon TrailBossᴾ<<locked>>100%35,331 psi62%1847 fps100%
Hodgdon VARGET<<locked>>86%49,705 psi88%2923 fps99.1%
IMR 3031<<locked>>84%48,298 psi85%2923 fps100%
IMR 4064<<locked>>88%48,805 psi86%2890 fps98.3%
IMR 4831ᴾ<<locked>>100%50,328 psi89%2992 fps98%
IMR 4895<<locked>>88%50,865 psi90%2986 fps99%
IMR 8208 XBR<<locked>>84%50,676 psi90%2920 fps99.6%
Lovex D073.6<<locked>>86%50,995 psi90%2946 fps100%
Lovex S060<<locked>>86%51,184 psi90%2890 fps99%
Lovex S062<<locked>>88%49,081 psi87%2900 fps99.5%
Lovex S065<<locked>>96%51,010 psi90%2930 fps96.6%
Norma 201<<locked>>86%50,807 psi90%2917 fps99.6%
Norma 202<<locked>>86%50,850 psi90%2927 fps100%
Norma 203B<<locked>>88%48,950 psi87%2940 fps98.7%
Norma URP<<locked>>98%49,066 psi87%2986 fps97.6%
Ramshot Big Game<<locked>>88%48,356 psi85%2949 fps98.5%
Ramshot Hunterᴾ<<locked>>100%50,879 psi90%3018 fps96.2%
Ramshot TAC<<locked>>84%50,908 psi90%2923 fps96.8%
Ramshot Wild Boar<<locked>>84%49,922 psi88%2943 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,027 psi64%1896 fps100%
ReloadSwiss RS 50<<locked>>90%50,691 psi90%2927 fps95.8%
ReloadSwiss RS 52<<locked>>86%49,023 psi87%3009 fps98.3%
ReloadSwiss RS 60<<locked>>92%48,689 psi86%3045 fps100%
ReloadSwiss RS 62<<locked>>98%48,820 psi86%3005 fps97.4%
ReloadSwiss RS 70<<locked>>98%49,472 psi87%3025 fps96.8%
Rottweil R 901<<locked>>82%49,734 psi88%2871 fps100%
Rottweil R 902<<locked>>86%48,631 psi86%2871 fps99.4%
Rottweil R 903<<locked>>92%49,327 psi87%2940 fps99.2%
Shooters World Long Rifle<<locked>>96%51,010 psi90%2930 fps96.6%
Shooters World Match Rifle<<locked>>86%50,995 psi90%2946 fps100%
Shooters World Precision<<locked>>88%49,081 psi87%2900 fps99.5%
SNPE Vectan SP 11<<locked>>92%50,154 psi89%2989 fps98.8%
SNPE Vectan SP 7<<locked>>84%49,356 psi87%2900 fps97%
SNPE Vectan SP 9<<locked>>86%49,893 psi88%2930 fps98.8%
SNPE Vectan Tubal 3000<<locked>>84%48,936 psi87%2812 fps100%
SNPE Vectan Tubal 5000<<locked>>90%48,863 psi86%2815 fps100%
Somchem S335<<locked>>84%48,907 psi86%2822 fps100%
Somchem S341<<locked>>84%48,617 psi86%2894 fps98.5%
Somchem S355<<locked>>92%49,719 psi88%2936 fps99.1%
Somchem S365ᴾ<<locked>>100%46,746 psi83%2989 fps99.7%
Vihtavuori N133<<locked>>84%48,921 psi86%2805 fps100%
Vihtavuori N135<<locked>>88%50,517 psi89%2894 fps100%
Vihtavuori N140<<locked>>88%51,010 psi90%2900 fps100%
Vihtavuori N150<<locked>>94%50,966 psi90%2923 fps99.8%
Vihtavuori N160<<locked>>96%48,080 psi85%2923 fps97.3%
Vihtavuori N530<<locked>>84%50,894 psi90%2917 fps99.6%
Vihtavuori N540<<locked>>88%49,545 psi88%2897 fps100%
Vihtavuori N550<<locked>>98%50,633 psi90%2989 fps97.6%
Vihtavuori N555ᴾ<<locked>>100%40,059 psi71%2858 fps96.2%
Winchester 6.5 StaBALL<<locked>>96%48,805 psi86%2907 fps99.1%
Winchester 748<<locked>>84%50,082 psi89%2959 fps99.9%
Winchester StaBALL Match<<locked>>86%49,472 psi87%2940 fps99.2%

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%46,847 psi83%2789 fps100%
Accurate 2495<<locked>>80%40,799 psi72%2723 fps100%
Accurate 2520<<locked>>80%46,267 psi82%2858 fps99.9%
Accurate 4064<<locked>>80%38,479 psi68%2707 fps99.6%
Accurate 4350<<locked>>92%40,944 psi72%2828 fps95.7%
ADI AR 2206H<<locked>>80%43,250 psi76%2805 fps97.6%
ADI AR 2208<<locked>>82%38,972 psi69%2697 fps95.7%
ADI Benchmark 8208<<locked>>80%45,020 psi80%2815 fps98.9%
Alliant AR-Comp<<locked>>80%44,744 psi79%2818 fps100%
Alliant Power Pro 2000-MR<<locked>>80%38,783 psi69%2805 fps95%
Alliant Reloder- TS 15.5<<locked>>80%36,521 psi65%2674 fps96.7%
Alliant Reloder-15<<locked>>80%39,175 psi69%2736 fps95.9%
Alliant Reloder-16<<locked>>92%40,582 psi72%2825 fps95.5%
Alliant Reloder-1733.3 gr84%35,679 psi63%2733 fps95.6%
Alliant Reloder-23<<locked>>98%35,360 psi63%2720 fps95.3%
Baschieri & Pellagri 107<<locked>>80%41,989 psi74%2795 fps96.1%
Bofors RP3<<locked>>80%36,289 psi64%2677 fps96.8%
Hodgdon Benchmark<<locked>>80%46,717 psi83%2805 fps99.5%
Hodgdon BL-C2<<locked>>80%43,569 psi77%2835 fps99.1%
Hodgdon CFE223<<locked>>80%47,384 psi84%2969 fps98%
Hodgdon H380<<locked>>84%42,003 psi74%2785 fps95.3%
Hodgdon H4895<<locked>>80%43,569 psi77%2818 fps98.2%
Hodgdon Hybrid 100V<<locked>>90%35,244 psi62%2661 fps95.6%
Hodgdon LEVERevolution<<locked>>80%39,146 psi69%2776 fps97.6%
Hodgdon TrailBoss<<locked>>80%26,585 psi47%1657 fps100%
Hodgdon VARGET<<locked>>80%41,655 psi74%2766 fps97.7%
IMR 3031<<locked>>80%42,496 psi75%2818 fps100%
IMR 4064<<locked>>80%38,638 psi68%2680 fps95.8%
IMR 4831<<locked>>92%39,334 psi70%2772 fps95.3%
IMR 4895<<locked>>80%40,030 psi71%2769 fps96.9%
IMR 8208 XBR<<locked>>80%45,020 psi80%2815 fps98.9%
Lovex D073.6<<locked>>80%42,337 psi75%2792 fps99.5%
Lovex S060<<locked>>80%43,062 psi76%2736 fps97.6%
Lovex S062<<locked>>80%38,711 psi68%2690 fps97.8%
Lovex S065<<locked>>92%45,382 psi80%2825 fps95.3%
Norma 201<<locked>>80%42,743 psi76%2762 fps98.6%
Norma 202<<locked>>80%42,598 psi75%2776 fps99.8%
Norma 203B<<locked>>80%38,595 psi68%2723 fps96.4%
Norma URP<<locked>>92%40,727 psi72%2815 fps95.4%
Ramshot Big Game32.2 gr80%37,550 psi66%2723 fps95.8%
Ramshot Hunter<<locked>>98%48,095 psi85%2966 fps95.4%
Ramshot TAC<<locked>>80%44,730 psi79%2805 fps95.3%
Ramshot Wild Boar<<locked>>80%43,976 psi78%2828 fps97.7%
ReloadSwiss RS 14<<locked>>80%26,963 psi48%1696 fps100%
ReloadSwiss RS 50<<locked>>88%47,601 psi84%2867 fps95%
ReloadSwiss RS 52<<locked>>80%40,074 psi71%2825 fps96.2%
ReloadSwiss RS 6031.7 gr80%33,431 psi59%2684 fps97.4%
ReloadSwiss RS 62<<locked>>92%40,509 psi72%2838 fps95.1%
ReloadSwiss RS 70<<locked>>96%46,412 psi82%2963 fps95.9%
Rottweil R 901<<locked>>80%46,804 psi83%2815 fps99.9%
Rottweil R 902<<locked>>80%40,843 psi72%2717 fps98.2%
Rottweil R 903<<locked>>80%34,185 psi60%2618 fps95.7%
Shooters World Long Rifle<<locked>>92%45,382 psi80%2825 fps95.3%
Shooters World Match Rifle<<locked>>80%42,337 psi75%2792 fps99.5%
Shooters World Precision<<locked>>80%38,711 psi68%2690 fps97.8%
SNPE Vectan SP 11<<locked>>82%36,825 psi65%2710 fps95.6%
SNPE Vectan SP 7<<locked>>80%43,468 psi77%2785 fps95.6%
SNPE Vectan SP 9<<locked>>80%41,292 psi73%2762 fps97.1%
SNPE Vectan Tubal 3000<<locked>>80%43,671 psi77%2717 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%36,376 psi64%2575 fps99.6%
Somchem S335<<locked>>80%43,526 psi77%2723 fps100%
Somchem S341<<locked>>80%42,830 psi76%2782 fps97.4%
Somchem S355<<locked>>80%35,056 psi62%2625 fps95.8%
Somchem S365<<locked>>86%30,734 psi54%2598 fps95.3%
Vihtavuori N133<<locked>>80%43,671 psi77%2717 fps100%
Vihtavuori N135<<locked>>80%39,682 psi70%2703 fps100%
Vihtavuori N140<<locked>>80%40,089 psi71%2703 fps99.7%
Vihtavuori N150<<locked>>80%33,141 psi59%2559 fps96.7%
Vihtavuori N160<<locked>>90%39,943 psi71%2759 fps95.1%
Vihtavuori N530<<locked>>80%45,020 psi80%2812 fps99%
Vihtavuori N540<<locked>>80%38,841 psi69%2690 fps99.4%
Vihtavuori N550<<locked>>92%41,785 psi74%2818 fps95.5%
Vihtavuori N555<<locked>>98%37,565 psi66%2799 fps95.4%
Winchester 6.5 StaBALL<<locked>>84%33,620 psi59%2575 fps95%
Winchester 748<<locked>>80%44,280 psi78%2854 fps99.4%
Winchester StaBALL Match<<locked>>80%40,828 psi72%2769 fps97.6%

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 76 powders for 6 x 47 SM loaded with the .243 | 90gr | Impala RNFP KO. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,058 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, 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-16, Alliant Reloder-23, Hodgdon Hybrid 100V 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 60, Alliant Reloder-17, Ramshot Big Game rank at the top here: for 6 x 47 SM 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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