Load Specifications
Load data in caliber 6 mm GT with .243 | 95gr | Barnes X 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 53,577 psi | 86% | 2799 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,405 psi | 89% | 2871 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,014 psi | 90% | 2874 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,026 psi | 86% | 2874 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 55,593 psi | 90% | 2917 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,809 psi | 87% | 2972 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 54,984 psi | 89% | 2927 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 55,666 psi | 90% | 2920 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,143 psi | 87% | 2881 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 54,592 psi | 88% | 2867 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,172 psi | 87% | 3038 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,956 psi | 90% | 2953 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,101 psi | 90% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,403 psi | 86% | 2923 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,430 psi | 83% | 2963 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,043 psi | 90% | 3064 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,652 psi | 61% | 2700 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,708 psi | 88% | 2940 fps | 99% |
| Bofors RP3 | <<locked>> | 92% | 53,476 psi | 86% | 2920 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,854 psi | 90% | 2864 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,664 psi | 87% | 2917 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,592 psi | 88% | 3002 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 54,549 psi | 88% | 2881 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,782 psi | 90% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,143 psi | 87% | 2920 fps | 98.4% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,043 psi | 90% | 3009 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 55,550 psi | 90% | 2940 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2848 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,317 psi | 88% | 2969 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,171 psi | 86% | 2887 fps | 99.6% |
| IMR 3031 | <<locked>> | 88% | 55,448 psi | 89% | 2933 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,347 psi | 89% | 2907 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,753 psi | 90% | 2881 fps | 96.5% |
| IMR 4198 | <<locked>> | 82% | 55,492 psi | 90% | 2799 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,897 psi | 89% | 2900 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,995 psi | 82% | 2910 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 54,607 psi | 88% | 2956 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 54,143 psi | 87% | 2881 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 54,897 psi | 89% | 2874 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,984 psi | 89% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,955 psi | 89% | 2858 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 55,593 psi | 90% | 2913 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,592 psi | 88% | 2900 fps | 97.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2930 fps | 96.7% |
| Norma 201 | <<locked>> | 88% | 54,331 psi | 88% | 2881 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 54,447 psi | 88% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,695 psi | 90% | 2959 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 52,605 psi | 85% | 2953 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 55,956 psi | 90% | 2982 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,605 psi | 83% | 2943 fps | 96.8% |
| Ramshot TAC | <<locked>> | 86% | 54,708 psi | 88% | 2897 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,085 psi | 87% | 2920 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,027 psi | 89% | 2881 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 58% | 1827 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,592 psi | 86% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,273 psi | 88% | 2897 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,011 psi | 86% | 2982 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,637 psi | 90% | 3068 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,707 psi | 85% | 2982 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,301 psi | 86% | 3009 fps | 98% |
| Rottweil R 901 | <<locked>> | 84% | 53,142 psi | 86% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,998 psi | 89% | 2881 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 52,939 psi | 85% | 2907 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,592 psi | 88% | 2900 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,984 psi | 89% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,593 psi | 90% | 2913 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2930 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,954 psi | 87% | 2959 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,185 psi | 86% | 2874 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,548 psi | 86% | 2900 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,724 psi | 90% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,608 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,766 psi | 88% | 2844 fps | 96.3% |
| Somchem S321 | <<locked>> | 84% | 55,564 psi | 90% | 2920 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,013 psi | 89% | 2818 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,912 psi | 90% | 2920 fps | 99.6% |
| Somchem S355 | <<locked>> | 94% | 53,548 psi | 86% | 2907 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,311 psi | 76% | 2907 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 55,390 psi | 89% | 2785 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,637 psi | 90% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,114 psi | 87% | 2851 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,766 psi | 88% | 2858 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,766 psi | 88% | 2884 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,143 psi | 89% | 2949 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 86% | 54,926 psi | 89% | 2884 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 53,243 psi | 86% | 2858 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,404 psi | 88% | 2959 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,495 psi | 65% | 2782 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,057 psi | 90% | 2936 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 54,288 psi | 88% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 52,837 psi | 85% | 2956 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,258 psi | 86% | 2910 fps | 99.7% |
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% | 47,616 psi | 77% | 2707 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,808 psi | 84% | 2815 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,263 psi | 67% | 2641 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,717 psi | 75% | 2772 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,957 psi | 63% | 2628 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 38,972 psi | 63% | 2697 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 43,410 psi | 70% | 2720 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 37,217 psi | 60% | 2569 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,179 psi | 73% | 2726 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 45,295 psi | 73% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | 30.9 gr | 80% | 39,204 psi | 63% | 2730 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,970 psi | 60% | 2598 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,924 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,334 psi | 63% | 2654 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,595 psi | 62% | 2694 fps | 95.3% |
| Alliant Reloder-17 | 31.2 gr | 82% | 33,968 psi | 55% | 2605 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 33,707 psi | 54% | 2595 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,134 psi | 68% | 2713 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 36,840 psi | 59% | 2608 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,137 psi | 76% | 2723 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,019 psi | 71% | 2753 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,037 psi | 77% | 2890 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 51,372 psi | 83% | 2831 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,185 psi | 84% | 2854 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 39,755 psi | 64% | 2651 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 96% | 49,806 psi | 80% | 2904 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,714 psi | 71% | 2733 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 33,721 psi | 54% | 2543 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,494 psi | 64% | 2697 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 43% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,785 psi | 67% | 2677 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 43,323 psi | 70% | 2740 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,986 psi | 63% | 2605 fps | 96.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,385 psi | 80% | 2776 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 52,257 psi | 84% | 2753 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,866 psi | 84% | 2848 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 37,565 psi | 61% | 2648 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,219 psi | 65% | 2684 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 45,179 psi | 73% | 2726 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 51,808 psi | 84% | 2825 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,670 psi | 69% | 2707 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 43,395 psi | 70% | 2654 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 39,059 psi | 63% | 2612 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 43,540 psi | 70% | 2703 fps | 95.2% |
| Lovex S070 | <<locked>> | 96% | 49,298 psi | 80% | 2831 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 43,120 psi | 70% | 2684 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 43,062 psi | 69% | 2694 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 38,740 psi | 62% | 2644 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 38,769 psi | 63% | 2687 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 37,971 psi | 61% | 2648 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 45,730 psi | 74% | 2831 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 45,237 psi | 73% | 2726 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,483 psi | 72% | 2749 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,849 psi | 79% | 2776 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 44% | 1634 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,517 psi | 81% | 2815 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,051 psi | 78% | 2789 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,741 psi | 66% | 2753 fps | 96.8% |
| ReloadSwiss RS 60 | 30.5 gr | 80% | 33,968 psi | 55% | 2621 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,901 psi | 66% | 2762 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,714 psi | 71% | 2822 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,456 psi | 77% | 2736 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,220 psi | 66% | 2635 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 34,635 psi | 56% | 2546 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,540 psi | 70% | 2703 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,670 psi | 69% | 2707 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 39,059 psi | 63% | 2612 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 49,298 psi | 80% | 2831 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,172 psi | 57% | 2585 fps | 95.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,976 psi | 71% | 2707 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,959 psi | 68% | 2690 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,266 psi | 71% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,898 psi | 60% | 2507 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,561 psi | 83% | 2795 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 48,733 psi | 79% | 2808 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 43,888 psi | 71% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,960 psi | 69% | 2697 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 35,476 psi | 57% | 2552 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 29,385 psi | 47% | 2480 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,690 psi | 80% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,338 psi | 72% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,321 psi | 65% | 2625 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,553 psi | 65% | 2625 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 33,547 psi | 54% | 2487 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 90% | 40,611 psi | 66% | 2690 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 45,614 psi | 74% | 2730 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 39,421 psi | 64% | 2618 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 40,001 psi | 65% | 2694 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 36,042 psi | 58% | 2680 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,837 psi | 55% | 2503 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 44,744 psi | 72% | 2772 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 49,806 psi | 80% | 2904 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,220 psi | 66% | 2690 fps | 98.1% |
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.
This overview compares 93 powders for 6 mm GT loaded with the .243 | 95gr | Barnes X 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 X 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.