Load data for 6 mm GT + .243 | 95gr | Barnes XLC S

6 mm GT cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:95 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.725"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:43.5 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:62,001 psi
Recommended Twist Rate:1:9.0

Load data in caliber 6 mm GT with .243 | 95gr | Barnes XLC S bullet and 93 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 60 and Alliant Reloder-17.

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%53,577 psi86%2799 fps100%
Accurate 2460<<locked>>82%55,405 psi89%2871 fps100%
Accurate 2495<<locked>>90%56,014 psi90%2874 fps100%
Accurate 2520<<locked>>84%53,026 psi86%2874 fps100%
Accurate 4064<<locked>>92%55,593 psi90%2917 fps100%
Accurate 4350ᴾ<<locked>>100%53,809 psi87%2972 fps98.7%
ADI AR 2206H<<locked>>88%54,984 psi89%2927 fps99.6%
ADI AR 2208<<locked>>94%55,666 psi90%2920 fps99.3%
ADI Benchmark 8208<<locked>>86%54,143 psi87%2881 fps99.9%
Alliant AR-Comp<<locked>>86%54,592 psi88%2867 fps100%
Alliant Power Pro 2000-MR<<locked>>90%54,172 psi87%3038 fps99.2%
Alliant Reloder- TS 15.5<<locked>>94%55,956 psi90%2953 fps99.9%
Alliant Reloder-10x<<locked>>82%56,101 psi90%2844 fps100%
Alliant Reloder-15<<locked>>90%53,403 psi86%2923 fps99.2%
Alliant Reloder-16ᴾ<<locked>>100%51,430 psi83%2963 fps98.7%
Alliant Reloder-17<<locked>>98%56,043 psi90%3064 fps99.9%
Alliant Reloder-23ᴾ<<locked>>100%37,652 psi61%2700 fps96.8%
Baschieri & Pellagri 107<<locked>>88%54,708 psi88%2940 fps99%
Bofors RP3<<locked>>92%53,476 psi86%2920 fps99.8%
Hodgdon Benchmark<<locked>>86%55,854 psi90%2864 fps100%
Hodgdon BL-C2<<locked>>86%53,664 psi87%2917 fps100%
Hodgdon CFE223<<locked>>84%54,592 psi88%3002 fps99.3%
Hodgdon H322<<locked>>82%54,549 psi88%2881 fps100%
Hodgdon H335<<locked>>82%55,782 psi90%2907 fps100%
Hodgdon H380<<locked>>92%54,143 psi87%2920 fps98.4%
Hodgdon H414ᴾ<<locked>>100%56,043 psi90%3009 fps96.8%
Hodgdon H4895<<locked>>88%55,550 psi90%2940 fps99.8%
Hodgdon Hybrid 100Vᴾ<<locked>>100%47,964 psi77%2848 fps99.2%
Hodgdon LEVERevolution<<locked>>90%54,317 psi88%2969 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%35,462 psi57%1778 fps100%
Hodgdon VARGET<<locked>>88%53,171 psi86%2887 fps99.6%
IMR 3031<<locked>>88%55,448 psi89%2933 fps100%
IMR 4064<<locked>>92%55,347 psi89%2907 fps99.4%
IMR 4166 Enduron<<locked>>90%55,753 psi90%2881 fps96.5%
IMR 4198<<locked>>82%55,492 psi90%2799 fps100%
IMR 4451 Enduron<<locked>>96%54,897 psi89%2900 fps96.3%
IMR 4831ᴾ<<locked>>100%50,995 psi82%2910 fps98.4%
IMR 4895<<locked>>90%54,607 psi88%2956 fps99.6%
IMR 8208 XBR<<locked>>86%54,143 psi87%2881 fps99.9%
Lovex D073.5<<locked>>82%54,897 psi89%2874 fps100%
Lovex D073.6<<locked>>88%54,984 psi89%2913 fps100%
Lovex S060<<locked>>88%54,955 psi89%2858 fps99.6%
Lovex S062<<locked>>92%55,593 psi90%2913 fps100%
Lovex S065<<locked>>98%54,592 psi88%2900 fps97.7%
Lovex S070ᴾ<<locked>>100%55,259 psi89%2930 fps96.7%
Norma 201<<locked>>88%54,331 psi88%2881 fps99.9%
Norma 202<<locked>>88%54,447 psi88%2884 fps100%
Norma 203B<<locked>>92%55,695 psi90%2959 fps99.6%
Norma URPᴾ<<locked>>100%52,605 psi85%2953 fps98.5%
Ramshot Big Game<<locked>>92%55,956 psi90%2982 fps99.6%
Ramshot Hunterᴾ<<locked>>100%51,605 psi83%2943 fps96.8%
Ramshot TAC<<locked>>86%54,708 psi88%2897 fps97.9%
Ramshot Wild Boar<<locked>>86%54,085 psi87%2920 fps99.5%
Ramshot X-Terminator<<locked>>84%55,027 psi89%2881 fps99.5%
ReloadSwiss RS 14ᴾ<<locked>>100%36,201 psi58%1827 fps100%
ReloadSwiss RS 40<<locked>>82%53,592 psi86%2864 fps100%
ReloadSwiss RS 50<<locked>>92%54,273 psi88%2897 fps96.9%
ReloadSwiss RS 52<<locked>>88%53,011 psi86%2982 fps99.1%
ReloadSwiss RS 60<<locked>>96%55,637 psi90%3068 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%52,707 psi85%2982 fps98.4%
ReloadSwiss RS 70ᴾ<<locked>>100%53,301 psi86%3009 fps98%
Rottweil R 901<<locked>>84%53,142 psi86%2831 fps100%
Rottweil R 902<<locked>>90%54,998 psi89%2881 fps99.9%
Rottweil R 903<<locked>>94%52,939 psi85%2907 fps99.7%
Shooters World Long Rifle<<locked>>98%54,592 psi88%2900 fps97.7%
Shooters World Match Rifle<<locked>>88%54,984 psi89%2913 fps100%
Shooters World Precision<<locked>>92%55,593 psi90%2913 fps100%
Shooters World SW4350ᴾ<<locked>>100%55,259 psi89%2930 fps96.7%
SNPE Vectan SP 11<<locked>>94%53,954 psi87%2959 fps99.5%
SNPE Vectan SP 7<<locked>>86%53,185 psi86%2874 fps98.1%
SNPE Vectan SP 9<<locked>>88%53,548 psi86%2900 fps99.4%
SNPE Vectan Tubal 3000<<locked>>88%55,724 psi90%2822 fps100%
SNPE Vectan Tubal 5000<<locked>>94%55,608 psi90%2818 fps100%
SNPE Vectan Tubal 7000<<locked>>98%54,766 psi88%2844 fps96.3%
Somchem S321<<locked>>84%55,564 psi90%2920 fps100%
Somchem S335<<locked>>88%55,013 psi89%2818 fps100%
Somchem S341<<locked>>88%55,912 psi90%2920 fps99.6%
Somchem S355<<locked>>94%53,548 psi86%2907 fps99.7%
Somchem S365ᴾ<<locked>>100%47,311 psi76%2907 fps99.8%
Vihtavuori N130<<locked>>84%55,390 psi89%2785 fps100%
Vihtavuori N133<<locked>>88%55,637 psi90%2805 fps100%
Vihtavuori N135<<locked>>90%54,114 psi87%2851 fps100%
Vihtavuori N140<<locked>>90%54,766 psi88%2858 fps100%
Vihtavuori N150<<locked>>96%54,766 psi88%2884 fps100%
Vihtavuori N160ᴾ<<locked>>100%55,143 psi89%2949 fps98.8%
Vihtavuori N530<<locked>>86%54,926 psi89%2884 fps99.9%
Vihtavuori N540<<locked>>90%53,243 psi86%2858 fps100%
Vihtavuori N550ᴾ<<locked>>100%54,404 psi88%2959 fps98.6%
Vihtavuori N555ᴾ<<locked>>100%40,495 psi65%2782 fps96.8%
Winchester 6.5 StaBALLᴾ<<locked>>100%56,057 psi90%2936 fps99.9%
Winchester 748<<locked>>86%54,288 psi88%2933 fps100%
Winchester 760<<locked>>98%52,837 psi85%2956 fps96.1%
Winchester StaBALL Match<<locked>>88%53,258 psi86%2910 fps99.7%

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%47,616 psi77%2707 fps100%
Accurate 2460<<locked>>80%51,808 psi84%2815 fps100%
Accurate 2495<<locked>>80%41,263 psi67%2641 fps100%
Accurate 2520<<locked>>80%46,717 psi75%2772 fps100%
Accurate 4064<<locked>>80%38,957 psi63%2628 fps99.8%
Accurate 4350<<locked>>90%38,972 psi63%2697 fps95.6%
ADI AR 2206H<<locked>>80%43,410 psi70%2720 fps98%
ADI AR 2208<<locked>>80%37,217 psi60%2569 fps95.6%
ADI Benchmark 8208<<locked>>80%45,179 psi73%2726 fps99.2%
Alliant AR-Comp<<locked>>80%45,295 psi73%2730 fps100%
Alliant Power Pro 2000-MR30.9 gr80%39,204 psi63%2730 fps95.8%
Alliant Reloder- TS 15.5<<locked>>80%36,970 psi60%2598 fps97.3%
Alliant Reloder-10x<<locked>>80%52,924 psi85%2799 fps100%
Alliant Reloder-15<<locked>>80%39,334 psi63%2654 fps96.5%
Alliant Reloder-16<<locked>>90%38,595 psi62%2694 fps95.3%
Alliant Reloder-1731.2 gr82%33,968 psi55%2605 fps95.5%
Alliant Reloder-23<<locked>>96%33,707 psi54%2595 fps95.1%
Baschieri & Pellagri 107<<locked>>80%42,134 psi68%2713 fps96.6%
Bofors RP3<<locked>>80%36,840 psi59%2608 fps97.4%
Hodgdon Benchmark<<locked>>80%47,137 psi76%2723 fps99.7%
Hodgdon BL-C2<<locked>>80%44,019 psi71%2753 fps99.4%
Hodgdon CFE223<<locked>>80%48,037 psi77%2890 fps98.5%
Hodgdon H322<<locked>>80%51,372 psi83%2831 fps100%
Hodgdon H335<<locked>>80%52,185 psi84%2854 fps100%
Hodgdon H380<<locked>>82%39,755 psi64%2651 fps95.1%
Hodgdon H414<<locked>>96%49,806 psi80%2904 fps95.4%
Hodgdon H4895<<locked>>80%43,714 psi71%2733 fps98.5%
Hodgdon Hybrid 100V<<locked>>88%33,721 psi54%2543 fps95.5%
Hodgdon LEVERevolution<<locked>>80%39,494 psi64%2697 fps98.1%
Hodgdon TrailBoss<<locked>>80%26,687 psi43%1594 fps100%
Hodgdon VARGET<<locked>>80%41,785 psi67%2677 fps98.1%
IMR 3031<<locked>>80%43,323 psi70%2740 fps100%
IMR 4064<<locked>>80%38,986 psi63%2605 fps96.4%
IMR 4166 Enduron<<locked>>86%49,385 psi80%2776 fps95.1%
IMR 4198<<locked>>80%52,257 psi84%2753 fps100%
IMR 4451 Enduron<<locked>>94%51,866 psi84%2848 fps95.6%
IMR 4831<<locked>>90%37,565 psi61%2648 fps95.2%
IMR 4895<<locked>>80%40,219 psi65%2684 fps97.3%
IMR 8208 XBR<<locked>>80%45,179 psi73%2726 fps99.2%
Lovex D073.5<<locked>>80%51,808 psi84%2825 fps100%
Lovex D073.6<<locked>>80%42,670 psi69%2707 fps99.7%
Lovex S060<<locked>>80%43,395 psi70%2654 fps98%
Lovex S062<<locked>>80%39,059 psi63%2612 fps98.2%
Lovex S065<<locked>>90%43,540 psi70%2703 fps95.2%
Lovex S070<<locked>>96%49,298 psi80%2831 fps95.5%
Norma 201<<locked>>80%43,120 psi70%2684 fps98.9%
Norma 202<<locked>>80%43,062 psi69%2694 fps99.9%
Norma 203B<<locked>>80%38,740 psi62%2644 fps96.9%
Norma URP<<locked>>90%38,769 psi63%2687 fps95.3%
Ramshot Big Game<<locked>>80%37,971 psi61%2648 fps96.4%
Ramshot Hunter<<locked>>96%45,730 psi74%2831 fps95.3%
Ramshot TAC<<locked>>80%45,237 psi73%2726 fps95.9%
Ramshot Wild Boar<<locked>>80%44,483 psi72%2749 fps98.2%
Ramshot X-Terminator<<locked>>80%48,849 psi79%2776 fps98.8%
ReloadSwiss RS 14<<locked>>80%27,108 psi44%1634 fps100%
ReloadSwiss RS 40<<locked>>80%50,517 psi81%2815 fps100%
ReloadSwiss RS 50<<locked>>88%48,051 psi78%2789 fps95.6%
ReloadSwiss RS 52<<locked>>80%40,741 psi66%2753 fps96.8%
ReloadSwiss RS 6030.5 gr80%33,968 psi55%2621 fps98.1%
ReloadSwiss RS 62<<locked>>92%40,901 psi66%2762 fps95.7%
ReloadSwiss RS 70<<locked>>94%43,714 psi71%2822 fps95.6%
Rottweil R 901<<locked>>80%47,456 psi77%2736 fps100%
Rottweil R 902<<locked>>80%41,220 psi66%2635 fps98.6%
Rottweil R 903<<locked>>80%34,635 psi56%2546 fps96.4%
Shooters World Long Rifle<<locked>>90%43,540 psi70%2703 fps95.2%
Shooters World Match Rifle<<locked>>80%42,670 psi69%2707 fps99.7%
Shooters World Precision<<locked>>80%39,059 psi63%2612 fps98.2%
Shooters World SW4350<<locked>>96%49,298 psi80%2831 fps95.5%
SNPE Vectan SP 11<<locked>>80%35,172 psi57%2585 fps95.5%
SNPE Vectan SP 7<<locked>>80%43,976 psi71%2707 fps96.2%
SNPE Vectan SP 9<<locked>>80%41,959 psi68%2690 fps97.6%
SNPE Vectan Tubal 3000<<locked>>80%44,266 psi71%2638 fps100%
SNPE Vectan Tubal 5000<<locked>>80%36,898 psi60%2507 fps99.8%
SNPE Vectan Tubal 7000<<locked>>96%51,561 psi83%2795 fps95.6%
Somchem S321<<locked>>80%48,733 psi79%2808 fps99.7%
Somchem S335<<locked>>80%43,888 psi71%2641 fps100%
Somchem S341<<locked>>80%42,960 psi69%2697 fps97.8%
Somchem S355<<locked>>80%35,476 psi57%2552 fps96.4%
Somchem S365<<locked>>84%29,385 psi47%2480 fps95.1%
Vihtavuori N130<<locked>>80%49,690 psi80%2703 fps100%
Vihtavuori N133<<locked>>80%44,338 psi72%2635 fps100%
Vihtavuori N135<<locked>>80%40,321 psi65%2625 fps100%
Vihtavuori N140<<locked>>80%40,553 psi65%2625 fps99.9%
Vihtavuori N150<<locked>>80%33,547 psi54%2487 fps97.2%
Vihtavuori N160<<locked>>90%40,611 psi66%2690 fps95.8%
Vihtavuori N530<<locked>>80%45,614 psi74%2730 fps99.3%
Vihtavuori N540<<locked>>80%39,421 psi64%2618 fps99.6%
Vihtavuori N550<<locked>>90%40,001 psi65%2694 fps95.4%
Vihtavuori N555<<locked>>96%36,042 psi58%2680 fps95.3%
Winchester 6.5 StaBALL<<locked>>84%33,837 psi55%2503 fps95.7%
Winchester 748<<locked>>80%44,744 psi72%2772 fps99.6%
Winchester 760<<locked>>96%49,806 psi80%2904 fps95.4%
Winchester StaBALL Match<<locked>>80%41,220 psi66%2690 fps98.1%

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 93 powders for 6 mm GT loaded with the .243 | 95gr | Barnes XLC S. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,068 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,068 fps. Accurate 4350 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (427 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17 rank at the top here: for 6 mm GT with the .243 | 95gr | Barnes XLC S 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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