Load data for 6 mm XC + .243 | 85gr | Nosler Partition

6 mm XC cartridge drawing
Nosler logo

Load Specifications

Bullet Manufacturer:Nosler
Bullet Weight:85 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.901"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:49.7 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.0

Load data in caliber 6 mm XC with .243 | 85gr | Nosler Partition bullet and 101 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 Alliant Power Pro 2000-MR.

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>>84%54,752 psi86%3097 fps100%
Accurate 2460<<locked>>82%56,565 psi89%3173 fps100%
Accurate 2495<<locked>>90%57,029 psi89%3169 fps100%
Accurate 2520<<locked>>86%57,406 psi90%3232 fps100%
Accurate 2520<<locked>>86%57,406 psi90%3232 fps100%
Accurate 2700<<locked>>94%57,276 psi90%3159 fps96.2%
Accurate 4064<<locked>>92%57,029 psi89%3222 fps100%
Accurate 4350ᴾ<<locked>>100%57,043 psi89%3304 fps99.2%
ADI AR 2206H<<locked>>88%57,421 psi90%3255 fps99.8%
ADI AR 2208<<locked>>92%54,708 psi86%3189 fps99.3%
ADI Benchmark 8208<<locked>>86%56,333 psi88%3202 fps100%
Alliant AR-Comp<<locked>>86%56,956 psi89%3179 fps100%
Alliant Power Pro 2000-MR<<locked>>90%57,435 psi90%3389 fps99.6%
Alliant Reloder- TS 15.5<<locked>>92%54,969 psi86%3222 fps99.9%
Alliant Reloder-10x<<locked>>82%57,696 psi90%3153 fps100%
Alliant Reloder-15<<locked>>90%55,593 psi87%3245 fps99.5%
Alliant Reloder-16ᴾ<<locked>>100%54,273 psi85%3301 fps99.2%
Alliant Reloder-17<<locked>>96%55,811 psi87%3350 fps100%
Alliant Reloder-23ᴾ<<locked>>100%38,841 psi61%2989 fps97.4%
Alliant Reloder-26ᴾ<<locked>>100%43,526 psi68%3159 fps96.4%
Baschieri & Pellagri 107<<locked>>88%57,246 psi90%3268 fps99.4%
Bofors RP3<<locked>>92%55,608 psi87%3235 fps100%
Bofors RP7<<locked>>96%55,550 psi87%3192 fps96.2%
Hodgdon Benchmark<<locked>>84%54,476 psi85%3130 fps100%
Hodgdon BL-C2<<locked>>86%55,912 psi88%3235 fps100%
Hodgdon CFE223<<locked>>82%53,983 psi85%3278 fps99.3%
Hodgdon H322<<locked>>84%56,144 psi88%3189 fps100%
Hodgdon H380<<locked>>92%56,463 psi88%3245 fps98.8%
Hodgdon H414<<locked>>94%53,925 psi85%3255 fps96.6%
Hodgdon H4895<<locked>>86%54,462 psi85%3209 fps99.8%
Hodgdon Hybrid 100Vᴾ<<locked>>100%50,473 psi79%3163 fps99.5%
Hodgdon LEVERevolution<<locked>>92%57,363 psi90%3297 fps100%
Hodgdon Superformance<<locked>>98%57,145 psi90%3333 fps96.7%
Hodgdon TrailBossᴾ<<locked>>100%35,302 psi55%1988 fps100%
Hodgdon VARGET<<locked>>90%54,636 psi86%3192 fps99.8%
IMR 3031<<locked>>90%56,362 psi88%3228 fps100%
IMR 4064<<locked>>94%56,797 psi89%3215 fps99.6%
IMR 4166 Enduron<<locked>>94%56,536 psi89%3186 fps97%
IMR 4198<<locked>>82%57,522 psi90%3110 fps100%
IMR 4350ᴾ<<locked>>100%55,709 psi87%3215 fps96.3%
IMR 4451 Enduron<<locked>>96%57,551 psi90%3232 fps97.1%
IMR 4831ᴾ<<locked>>100%47,674 psi75%3120 fps98%
IMR 4895<<locked>>90%57,014 psi89%3278 fps99.8%
IMR 8208 XBR<<locked>>86%56,333 psi88%3202 fps100%
Lovex D073.5<<locked>>82%56,811 psi89%3189 fps100%
Lovex D073.6<<locked>>88%57,406 psi90%3232 fps100%
Lovex S060<<locked>>88%56,710 psi89%3173 fps99.8%
Lovex S062<<locked>>92%57,450 psi90%3228 fps100%
Lovex S065<<locked>>98%57,072 psi89%3225 fps98.3%
Lovex S070<<locked>>98%54,244 psi85%3199 fps96.8%
Norma 201<<locked>>88%55,927 psi88%3192 fps100%
Norma 202<<locked>>88%56,405 psi88%3196 fps100%
Norma 203B<<locked>>90%54,839 psi86%3228 fps99.7%
Norma URPᴾ<<locked>>100%55,782 psi87%3287 fps99.1%
Ramshot Big Game<<locked>>90%55,434 psi87%3255 fps99.6%
Ramshot Hunterᴾ<<locked>>100%54,578 psi86%3274 fps97.6%
Ramshot TAC<<locked>>86%56,884 psi89%3219 fps98.4%
Ramshot Wild Boar<<locked>>86%56,333 psi88%3238 fps99.7%
Ramshot X-Terminator<<locked>>84%57,290 psi90%3202 fps99.7%
ReloadSwiss RS 14ᴾ<<locked>>100%35,795 psi56%2037 fps100%
ReloadSwiss RS 40<<locked>>82%55,608 psi87%3179 fps100%
ReloadSwiss RS 50<<locked>>92%56,985 psi89%3228 fps97.7%
ReloadSwiss RS 52<<locked>>88%55,753 psi87%3310 fps99.5%
ReloadSwiss RS 60<<locked>>94%55,666 psi87%3353 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%56,637 psi89%3323 fps99.1%
ReloadSwiss RS 70ᴾ<<locked>>100%56,536 psi89%3356 fps98.8%
Rottweil R 901<<locked>>86%57,000 psi89%3179 fps100%
Rottweil R 902<<locked>>90%56,405 psi88%3189 fps100%
Rottweil R 903<<locked>>94%55,463 psi87%3228 fps99.9%
Rottweil R 907<<locked>>96%55,550 psi87%3192 fps96.2%
Shooters World Long Rifle<<locked>>98%57,072 psi89%3225 fps98.3%
Shooters World Match Rifle<<locked>>88%57,406 psi90%3232 fps100%
Shooters World Precision<<locked>>92%57,450 psi90%3228 fps100%
Shooters World SW4350<<locked>>98%54,244 psi85%3199 fps96.8%
SNPE Vectan SP 11<<locked>>94%57,261 psi90%3291 fps99.8%
SNPE Vectan SP 7<<locked>>86%55,347 psi87%3196 fps98.6%
SNPE Vectan SP 9<<locked>>88%55,593 psi87%3219 fps99.7%
SNPE Vectan Tubal 3000<<locked>>86%54,085 psi85%3081 fps100%
SNPE Vectan Tubal 5000<<locked>>92%54,215 psi85%3074 fps100%
SNPE Vectan Tubal 7000<<locked>>98%57,537 psi90%3173 fps97.1%
Somchem S321<<locked>>84%57,638 psi90%3235 fps100%
Somchem S335<<locked>>88%56,768 psi89%3127 fps100%
Somchem S341<<locked>>86%54,810 psi86%3186 fps99.6%
Somchem S355<<locked>>94%55,550 psi87%3222 fps99.8%
Somchem S365ᴾ<<locked>>100%49,966 psi78%3225 fps100%
Unknown powder<<locked>>98%56,913 psi89%3297 fps98.8%
Vihtavuori N130<<locked>>84%57,290 psi90%3094 fps100%
Vihtavuori N133<<locked>>86%54,317 psi85%3068 fps100%
Vihtavuori N135<<locked>>90%56,202 psi88%3156 fps100%
Vihtavuori N140<<locked>>90%57,043 psi89%3173 fps100%
Vihtavuori N150<<locked>>96%57,014 psi89%3199 fps100%
Vihtavuori N160<<locked>>98%54,752 psi86%3225 fps98.9%
Vihtavuori N530<<locked>>86%56,884 psi89%3202 fps100%
Vihtavuori N540<<locked>>90%55,259 psi87%3166 fps100%
Vihtavuori N550ᴾ<<locked>>100%57,348 psi90%3284 fps99.1%
Vihtavuori N555ᴾ<<locked>>100%42,438 psi67%3077 fps97.4%
Winchester 6.5 StaBALL<<locked>>98%55,288 psi87%3202 fps99.9%
Winchester 748<<locked>>84%57,435 psi90%3261 fps100%
Winchester 760<<locked>>94%53,925 psi85%3255 fps96.6%
Winchester StaBALL HDᴾ<<locked>>100%34,809 psi55%2963 fps96.5%
Winchester StaBALL Match<<locked>>82%57,000 psi89%3248 fps99.9%

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%48,327 psi76%2992 fps100%
Accurate 2460<<locked>>80%52,997 psi83%3117 fps100%
Accurate 2495<<locked>>80%41,162 psi65%2900 fps100%
Accurate 2520<<locked>>80%46,688 psi73%3051 fps100%
Accurate 2520<<locked>>80%46,688 psi73%3051 fps100%
Accurate 2700<<locked>>92%53,737 psi84%3100 fps95.5%
Accurate 4064<<locked>>80%38,885 psi61%2887 fps99.8%
Accurate 4350<<locked>>88%37,507 psi59%2913 fps95%
ADI AR 2206H<<locked>>80%44,396 psi70%3012 fps98.3%
ADI AR 2208<<locked>>80%37,855 psi59%2838 fps95.8%
ADI Benchmark 8208<<locked>>80%46,485 psi73%3025 fps99.4%
Alliant AR-Comp<<locked>>80%46,934 psi74%3025 fps100%
Alliant Power Pro 2000-MR37.7 gr80%40,364 psi63%3028 fps96.3%
Alliant Reloder- TS 15.5<<locked>>80%37,289 psi58%2861 fps97.4%
Alliant Reloder-10x<<locked>>80%54,041 psi85%3097 fps100%
Alliant Reloder-15<<locked>>80%40,147 psi63%2930 fps96.7%
Alliant Reloder-16<<locked>>88%37,536 psi59%2930 fps95.1%
Alliant Reloder-1738.1 gr82%34,679 psi54%2877 fps95.9%
Alliant Reloder-23<<locked>>96%34,418 psi54%2867 fps95.6%
Alliant Reloder-26<<locked>>98%40,727 psi64%3091 fps95.4%
Baschieri & Pellagri 107<<locked>>80%43,700 psi68%3009 fps97.1%
Bofors RP3<<locked>>80%37,101 psi58%2864 fps97.4%
Bofors RP7<<locked>>94%52,402 psi82%3136 fps95.5%
Hodgdon Benchmark<<locked>>80%48,341 psi76%3018 fps99.8%
Hodgdon BL-C2<<locked>>80%45,382 psi71%3045 fps99.6%
Hodgdon CFE223<<locked>>80%50,140 psi79%3205 fps98.8%
Hodgdon H322<<locked>>80%49,472 psi78%3077 fps100%
Hodgdon H380<<locked>>82%40,611 psi64%2930 fps95.4%
Hodgdon H414<<locked>>92%50,488 psi79%3192 fps95.8%
Hodgdon H4895<<locked>>80%44,831 psi70%3022 fps98.8%
Hodgdon Hybrid 100V<<locked>>88%34,360 psi54%2808 fps95.9%
Hodgdon LEVERevolution<<locked>>80%38,537 psi60%2930 fps97.8%
Hodgdon Superformance<<locked>>96%53,040 psi83%3261 fps95.8%
Hodgdon TrailBoss<<locked>>80%26,223 psi41%1778 fps100%
Hodgdon VARGET<<locked>>80%39,987 psi63%2900 fps97.7%
IMR 3031<<locked>>80%40,741 psi64%2949 fps100%
IMR 4064<<locked>>80%37,159 psi58%2815 fps95.9%
IMR 4166 Enduron<<locked>>90%50,169 psi79%3068 fps95.6%
IMR 4198<<locked>>80%54,201 psi85%3061 fps100%
IMR 4350<<locked>>98%52,605 psi82%3159 fps95.6%
IMR 4451 Enduron<<locked>>92%51,082 psi80%3114 fps95.7%
IMR 4831<<locked>>94%39,537 psi62%2943 fps95.9%
IMR 4895<<locked>>80%41,133 psi64%2966 fps97.6%
IMR 8208 XBR<<locked>>80%46,485 psi73%3025 fps99.4%
Lovex D073.5<<locked>>80%52,852 psi83%3123 fps100%
Lovex D073.6<<locked>>80%43,685 psi68%2992 fps99.8%
Lovex S060<<locked>>80%44,628 psi70%2949 fps98.4%
Lovex S062<<locked>>80%39,755 psi62%2887 fps98.4%
Lovex S065<<locked>>90%44,483 psi70%2989 fps95.7%
Lovex S070<<locked>>94%48,037 psi75%3081 fps95.4%
Norma 201<<locked>>80%43,729 psi69%2963 fps99.1%
Norma 202<<locked>>80%43,758 psi69%2972 fps100%
Norma 203B<<locked>>80%39,537 psi62%2920 fps97.1%
Norma URP<<locked>>90%40,103 psi63%2976 fps95.8%
Ramshot Big Game<<locked>>80%39,073 psi61%2927 fps96.8%
Ramshot Hunter<<locked>>94%44,889 psi70%3084 fps95.2%
Ramshot TAC<<locked>>80%46,572 psi73%3025 fps96.4%
Ramshot Wild Boar<<locked>>80%46,238 psi72%3051 fps98.6%
Ramshot X-Terminator<<locked>>80%50,227 psi79%3077 fps99.1%
ReloadSwiss RS 14<<locked>>80%26,745 psi42%1824 fps100%
ReloadSwiss RS 40<<locked>>80%52,127 psi82%3120 fps100%
ReloadSwiss RS 50<<locked>>86%46,717 psi73%3035 fps95.5%
ReloadSwiss RS 52<<locked>>80%42,337 psi66%3048 fps97.2%
ReloadSwiss RS 6037.2 gr80%34,534 psi54%2890 fps98.3%
ReloadSwiss RS 62<<locked>>90%39,987 psi63%2995 fps95.5%
ReloadSwiss RS 70<<locked>>92%42,786 psi67%3071 fps95.6%
Rottweil R 901<<locked>>80%47,718 psi75%3018 fps100%
Rottweil R 902<<locked>>80%41,626 psi65%2910 fps98.7%
Rottweil R 903<<locked>>80%34,780 psi55%2795 fps96.4%
Rottweil R 907<<locked>>94%52,402 psi82%3136 fps95.5%
Shooters World Long Rifle<<locked>>90%44,483 psi70%2989 fps95.7%
Shooters World Match Rifle<<locked>>80%43,685 psi68%2992 fps99.8%
Shooters World Precision<<locked>>80%39,755 psi62%2887 fps98.4%
Shooters World SW4350<<locked>>94%48,037 psi75%3081 fps95.4%
SNPE Vectan SP 11<<locked>>80%35,911 psi56%2854 fps95.8%
SNPE Vectan SP 7<<locked>>80%44,831 psi70%2995 fps96.6%
SNPE Vectan SP 9<<locked>>80%43,076 psi68%2976 fps98%
SNPE Vectan Tubal 3000<<locked>>80%44,918 psi70%2920 fps100%
SNPE Vectan Tubal 5000<<locked>>80%37,347 psi59%2762 fps99.9%
SNPE Vectan Tubal 7000<<locked>>94%50,314 psi79%3048 fps95.7%
Somchem S321<<locked>>80%50,415 psi79%3114 fps99.9%
Somchem S335<<locked>>80%44,715 psi70%2923 fps100%
Somchem S341<<locked>>80%44,469 psi70%2992 fps98.2%
Somchem S355<<locked>>80%35,853 psi56%2812 fps96.5%
Somchem S365<<locked>>84%29,515 psi46%2726 fps95.2%
Unknown powder<<locked>>88%41,060 psi64%2986 fps95.3%
Vihtavuori N130<<locked>>80%50,647 psi79%2992 fps100%
Vihtavuori N133<<locked>>80%45,208 psi71%2917 fps100%
Vihtavuori N135<<locked>>80%40,915 psi64%2897 fps100%
Vihtavuori N140<<locked>>80%41,437 psi65%2897 fps99.9%
Vihtavuori N150<<locked>>80%33,866 psi53%2736 fps97.3%
Vihtavuori N160<<locked>>88%39,436 psi62%2920 fps95.5%
Vihtavuori N530<<locked>>80%46,644 psi73%3022 fps99.5%
Vihtavuori N540<<locked>>80%40,103 psi63%2884 fps99.7%
Vihtavuori N550<<locked>>88%38,711 psi61%2917 fps95%
Vihtavuori N555<<locked>>96%37,231 psi58%2953 fps95.7%
Winchester 6.5 StaBALL<<locked>>82%32,343 psi51%2707 fps95.1%
Winchester 748<<locked>>80%49,980 psi78%3140 fps100%
Winchester 760<<locked>>92%50,488 psi79%3192 fps95.8%
Winchester StaBALL HD<<locked>>98%32,634 psi51%2887 fps95.1%
Winchester StaBALL Match<<locked>>80%52,997 psi83%3182 fps99.7%

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 113 powders for 6 mm XC loaded with the .243 | 85gr | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,389 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,389 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, Alliant Power Pro 2000-MR rank at the top here: for 6 mm XC with the .243 | 85gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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