Load Specifications
Load data in caliber 6 mm GT with .243 | 90gr | SUS-TAC HPT bullet and 92 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 52 and Hodgdon LEVERevolution.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 55,869 psi | 90% | 2920 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 56,057 psi | 90% | 3018 fps | 98.7% |
| Accurate 2460 | <<locked>> | 86% | 54,491 psi | 88% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,287 psi | 86% | 2936 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,489 psi | 85% | 2953 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 52,982 psi | 85% | 2972 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,324 psi | 73% | 2910 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 84% | 55,927 psi | 90% | 2871 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,953 psi | 85% | 2844 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 54,911 psi | 89% | 3009 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 96% | 52,924 psi | 85% | 2953 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 82% | 52,765 psi | 85% | 2940 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,302 psi | 88% | 2966 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 90% | 54,114 psi | 87% | 2956 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 55,883 psi | 90% | 3077 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,505 psi | 88% | 3117 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,245 psi | 89% | 3025 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,028 psi | 90% | 2936 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,997 psi | 85% | 2995 fps | 98.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,542 psi | 73% | 2920 fps | 96.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 3077 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,274 psi | 89% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,839 psi | 88% | 3018 fps | 98.4% |
| Bofors RP3 | <<locked>> | 98% | 56,043 psi | 90% | 3045 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,621 psi | 86% | 2910 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,185 psi | 86% | 2992 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,810 psi | 88% | 3087 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 86% | 55,274 psi | 89% | 2976 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,504 psi | 85% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,795 psi | 87% | 2992 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 92% | 55,448 psi | 89% | 3022 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,394 psi | 67% | 2792 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,027 psi | 87% | 3048 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 56% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,490 psi | 86% | 2969 fps | 99.3% |
| IMR 3031 | <<locked>> | 92% | 54,520 psi | 88% | 3012 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,767 psi | 90% | 2989 fps | 99% |
| IMR 4198 | <<locked>> | 84% | 52,968 psi | 85% | 2848 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,497 psi | 70% | 2854 fps | 96.1% |
| IMR 4895 | <<locked>> | 94% | 54,288 psi | 88% | 3031 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 90% | 54,302 psi | 88% | 2966 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 54,505 psi | 88% | 2953 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,027 psi | 87% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,622 psi | 90% | 2943 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 54,766 psi | 88% | 2982 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,691 psi | 82% | 2910 fps | 96.2% |
| Norma 200 | <<locked>> | 82% | 56,101 psi | 90% | 2910 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,708 psi | 87% | 2956 fps | 99.7% |
| Norma 202 | <<locked>> | 92% | 54,157 psi | 87% | 2966 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,506 psi | 90% | 3038 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 45,411 psi | 73% | 2904 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 96% | 55,956 psi | 90% | 3061 fps | 99.2% |
| Ramshot TAC | <<locked>> | 90% | 55,042 psi | 89% | 2972 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,056 psi | 87% | 2999 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,811 psi | 90% | 2969 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,867 psi | 56% | 1854 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,172 psi | 87% | 2956 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,360 psi | 88% | 2969 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 55,956 psi | 90% | 3114 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,927 psi | 90% | 3150 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,295 psi | 73% | 2927 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 54,752 psi | 88% | 2946 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,404 psi | 88% | 2956 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,332 psi | 89% | 3025 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,691 psi | 82% | 2910 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,027 psi | 87% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,766 psi | 88% | 2982 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,389 psi | 88% | 2927 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,461 psi | 86% | 2953 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,780 psi | 87% | 3035 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,635 psi | 87% | 2910 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,258 psi | 86% | 2949 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,519 psi | 86% | 2979 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,765 psi | 85% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,767 psi | 90% | 2900 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 55,854 psi | 90% | 3005 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 54,911 psi | 89% | 2900 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,086 psi | 90% | 2999 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 3025 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,466 psi | 65% | 2848 fps | 98.4% |
| Vihtavuori N130 | <<locked>> | 88% | 55,767 psi | 90% | 2877 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,678 psi | 85% | 2851 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,997 psi | 85% | 2923 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,781 psi | 88% | 2943 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 2956 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,950 psi | 77% | 2907 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 90% | 55,172 psi | 89% | 2969 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 53,040 psi | 86% | 2940 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,152 psi | 76% | 2913 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,385 psi | 80% | 2897 fps | 98.9% |
| Winchester 748 | <<locked>> | 90% | 54,114 psi | 87% | 3015 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,113 psi | 86% | 2986 fps | 99.4% |
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% | 41,307 psi | 67% | 2690 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 52,562 psi | 85% | 2959 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 44,701 psi | 72% | 2785 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 33,750 psi | 54% | 2585 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 39,798 psi | 64% | 2726 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 31,923 psi | 51% | 2562 fps | 98.2% |
| Accurate 4350 | <<locked>> | 98% | 42,279 psi | 68% | 2848 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 49,385 psi | 80% | 2772 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,763 psi | 80% | 2792 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 37,840 psi | 61% | 2680 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 38,740 psi | 62% | 2680 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 49,472 psi | 80% | 2887 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,798 psi | 64% | 2697 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 38,769 psi | 63% | 2713 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,963 psi | 74% | 2904 fps | 98.4% |
| Alliant Power Pro 2000-MR | 32.5 gr | 86% | 41,655 psi | 67% | 2861 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,170 psi | 53% | 2592 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,644 psi | 75% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,392 psi | 62% | 2713 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,815 psi | 69% | 2861 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,317 psi | 57% | 2713 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,356 psi | 78% | 2766 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,061 psi | 68% | 2789 fps | 95.8% |
| Bofors RP3 | <<locked>> | 82% | 32,532 psi | 52% | 2585 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,032 psi | 68% | 2703 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,710 psi | 61% | 2703 fps | 97.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,321 psi | 67% | 2835 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,498 psi | 73% | 2822 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,963 psi | 74% | 2835 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 43,961 psi | 71% | 2818 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 38,072 psi | 61% | 2694 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 36,767 psi | 59% | 2690 fps | 95.7% |
| Hodgdon LEVERevolution | 29.7 gr | 80% | 34,156 psi | 55% | 2648 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,744 psi | 42% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,666 psi | 59% | 2644 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 36,738 psi | 59% | 2700 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,159 psi | 62% | 2661 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,413 psi | 76% | 2762 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 40,408 psi | 65% | 2789 fps | 95.2% |
| IMR 4895 | <<locked>> | 82% | 36,811 psi | 59% | 2690 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 39,798 psi | 64% | 2697 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 80% | 44,730 psi | 72% | 2792 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 36,230 psi | 58% | 2661 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 38,508 psi | 62% | 2625 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 33,359 psi | 54% | 2562 fps | 95.8% |
| Lovex S065 | <<locked>> | 98% | 47,645 psi | 77% | 2854 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 52,678 psi | 85% | 2861 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,188 psi | 60% | 2638 fps | 97% |
| Norma 202 | <<locked>> | 80% | 36,956 psi | 60% | 2654 fps | 99% |
| Norma 203B | <<locked>> | 84% | 37,710 psi | 61% | 2700 fps | 95.8% |
| Norma URP | <<locked>> | 98% | 42,598 psi | 69% | 2844 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 84% | 37,463 psi | 60% | 2710 fps | 95.3% |
| Ramshot TAC | <<locked>> | 84% | 45,179 psi | 73% | 2799 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,638 psi | 62% | 2707 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,134 psi | 70% | 2746 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,991 psi | 42% | 1663 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,483 psi | 72% | 2789 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 51,097 psi | 82% | 2913 fps | 95.4% |
| ReloadSwiss RS 52 | 30.8 gr | 84% | 39,827 psi | 64% | 2815 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 30,792 psi | 50% | 2595 fps | 95.6% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,061 psi | 68% | 2861 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 40,901 psi | 66% | 2703 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 35,375 psi | 57% | 2589 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 86% | 34,983 psi | 56% | 2641 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,645 psi | 77% | 2854 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,230 psi | 58% | 2661 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 33,359 psi | 54% | 2562 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,108 psi | 76% | 2805 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,835 psi | 80% | 2894 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,361 psi | 59% | 2694 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,065 psi | 76% | 2805 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,279 psi | 70% | 2772 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,303 psi | 59% | 2641 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,551 psi | 62% | 2608 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,633 psi | 51% | 2464 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 42,453 psi | 68% | 2772 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 38,319 psi | 62% | 2615 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 37,173 psi | 60% | 2651 fps | 95.4% |
| Somchem S355 | <<locked>> | 84% | 33,968 psi | 55% | 2598 fps | 95% |
| Somchem S365 | <<locked>> | 92% | 31,444 psi | 51% | 2618 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 43,758 psi | 71% | 2694 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,624 psi | 62% | 2612 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,895 psi | 55% | 2582 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,099 psi | 57% | 2589 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 30,211 psi | 49% | 2480 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 42,206 psi | 68% | 2799 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 39,697 psi | 64% | 2690 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 33,678 psi | 54% | 2569 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 98% | 43,830 psi | 71% | 2848 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,505 psi | 57% | 2612 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 38,493 psi | 62% | 2730 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,360 psi | 57% | 2641 fps | 95.6% |
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.
This overview compares 92 powders for 6 mm GT loaded with the .243 | 90gr | SUS-TAC HPT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,150 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, Hodgdon LEVERevolution rank at the top here: for 6 mm GT with the .243 | 90gr | SUS-TAC HPT 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.