Load Specifications
Load data in caliber 6 mm GT with .243 | 90gr | Sierra Tipped GameKing 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 ReloadSwiss RS 60.
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>> | 90% | 55,709 psi | 90% | 2917 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 55,869 psi | 90% | 3015 fps | 98.7% |
| Accurate 2460 | <<locked>> | 86% | 54,360 psi | 88% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,142 psi | 86% | 2930 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,373 psi | 84% | 2949 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 52,866 psi | 85% | 2972 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,208 psi | 73% | 2907 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 84% | 55,753 psi | 90% | 2867 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,765 psi | 85% | 2841 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 54,795 psi | 88% | 3005 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 98% | 55,666 psi | 90% | 2995 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 82% | 52,591 psi | 85% | 2936 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,172 psi | 87% | 2963 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 90% | 53,940 psi | 87% | 2953 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 55,709 psi | 90% | 3074 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,360 psi | 88% | 3114 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,114 psi | 89% | 3022 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 55,825 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,388 psi | 84% | 2986 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,020 psi | 73% | 2907 fps | 96.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,257 psi | 84% | 3077 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,158 psi | 89% | 2864 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,708 psi | 88% | 3018 fps | 98.4% |
| Bofors RP3 | <<locked>> | 98% | 55,376 psi | 89% | 3035 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,040 psi | 86% | 2900 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,997 psi | 85% | 2989 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,607 psi | 88% | 3084 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 86% | 55,100 psi | 89% | 2972 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,373 psi | 84% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,635 psi | 87% | 2992 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 92% | 55,245 psi | 89% | 3015 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,249 psi | 67% | 2789 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,940 psi | 87% | 3045 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,432 psi | 56% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,374 psi | 86% | 2966 fps | 99.3% |
| IMR 3031 | <<locked>> | 92% | 54,360 psi | 88% | 3009 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,579 psi | 90% | 2986 fps | 98.9% |
| IMR 4198 | <<locked>> | 84% | 52,779 psi | 85% | 2844 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,004 psi | 69% | 2844 fps | 96% |
| IMR 4895 | <<locked>> | 94% | 53,664 psi | 87% | 3022 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 90% | 54,172 psi | 87% | 2963 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 54,346 psi | 88% | 2949 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 92% | 53,911 psi | 87% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,506 psi | 90% | 2940 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 54,607 psi | 88% | 2979 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,618 psi | 82% | 2907 fps | 96.1% |
| Norma 200 | <<locked>> | 82% | 55,883 psi | 90% | 2907 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,592 psi | 86% | 2949 fps | 99.7% |
| Norma 202 | <<locked>> | 92% | 54,027 psi | 87% | 2963 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,317 psi | 89% | 3031 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 45,339 psi | 73% | 2900 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 96% | 55,883 psi | 90% | 3061 fps | 99.2% |
| Ramshot TAC | <<locked>> | 90% | 54,926 psi | 89% | 2972 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,969 psi | 87% | 2995 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,709 psi | 90% | 2966 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,606 psi | 56% | 1850 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,027 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,259 psi | 88% | 2966 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 55,738 psi | 90% | 3107 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,840 psi | 90% | 3146 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,179 psi | 73% | 2923 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 54,592 psi | 88% | 2943 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,273 psi | 88% | 2953 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 3025 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,618 psi | 82% | 2907 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,911 psi | 87% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,607 psi | 88% | 2979 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,795 psi | 87% | 2917 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,316 psi | 86% | 2949 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,679 psi | 87% | 3031 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,417 psi | 86% | 2907 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,692 psi | 85% | 2940 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,417 psi | 86% | 2976 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,605 psi | 85% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,564 psi | 90% | 2897 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 55,753 psi | 90% | 3005 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 54,781 psi | 88% | 2900 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 55,970 psi | 90% | 2995 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,782 psi | 90% | 3022 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,364 psi | 65% | 2844 fps | 98.4% |
| Vihtavuori N130 | <<locked>> | 88% | 55,593 psi | 90% | 2874 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,970 psi | 90% | 2894 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,794 psi | 85% | 2920 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,621 psi | 88% | 2940 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,056 psi | 87% | 2953 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,877 psi | 77% | 2907 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 90% | 55,042 psi | 89% | 2966 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 52,953 psi | 85% | 2936 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,630 psi | 75% | 2900 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,298 psi | 80% | 2897 fps | 98.9% |
| Winchester 748 | <<locked>> | 90% | 53,925 psi | 87% | 3009 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,953 psi | 85% | 2982 fps | 99.3% |
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% | 41,176 psi | 66% | 2684 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 52,388 psi | 84% | 2959 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 44,541 psi | 72% | 2782 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 33,562 psi | 54% | 2582 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 39,639 psi | 64% | 2726 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 31,749 psi | 51% | 2559 fps | 98.1% |
| Accurate 4350 | <<locked>> | 98% | 42,163 psi | 68% | 2848 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 49,211 psi | 79% | 2769 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,588 psi | 80% | 2789 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 37,681 psi | 61% | 2677 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 38,609 psi | 62% | 2677 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 49,298 psi | 80% | 2884 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,653 psi | 64% | 2694 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 38,624 psi | 62% | 2710 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,803 psi | 74% | 2900 fps | 98.4% |
| Alliant Power Pro 2000-MR | 32.4 gr | 86% | 41,495 psi | 67% | 2854 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,025 psi | 53% | 2585 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,485 psi | 75% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,247 psi | 62% | 2707 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,714 psi | 69% | 2854 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 37,507 psi | 60% | 2769 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,240 psi | 78% | 2762 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,945 psi | 68% | 2785 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 32,387 psi | 52% | 2582 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,872 psi | 68% | 2700 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,579 psi | 61% | 2700 fps | 97.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,191 psi | 66% | 2831 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 80% | 45,310 psi | 73% | 2815 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,818 psi | 74% | 2831 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 43,859 psi | 71% | 2815 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 37,942 psi | 61% | 2687 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 36,332 psi | 59% | 2680 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,026 psi | 55% | 2641 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 41% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,506 psi | 59% | 2638 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 36,579 psi | 59% | 2697 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 38,014 psi | 61% | 2657 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 47,195 psi | 76% | 2759 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 40,335 psi | 65% | 2789 fps | 95.2% |
| IMR 4895 | <<locked>> | 82% | 36,666 psi | 59% | 2687 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 39,653 psi | 64% | 2694 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 80% | 44,512 psi | 72% | 2789 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 36,071 psi | 58% | 2657 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 38,406 psi | 62% | 2621 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 33,214 psi | 54% | 2559 fps | 95.7% |
| Lovex S065 | <<locked>> | 98% | 47,529 psi | 77% | 2854 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 52,504 psi | 85% | 2858 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,028 psi | 60% | 2635 fps | 97% |
| Norma 202 | <<locked>> | 80% | 36,796 psi | 59% | 2651 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 37,579 psi | 61% | 2697 fps | 95.7% |
| Norma URP | <<locked>> | 98% | 42,482 psi | 69% | 2844 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 84% | 37,014 psi | 60% | 2700 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 48,298 psi | 78% | 2858 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,508 psi | 62% | 2703 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,018 psi | 69% | 2743 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 41% | 1654 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,324 psi | 71% | 2785 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 51,024 psi | 82% | 2913 fps | 95.4% |
| ReloadSwiss RS 52 | 30.7 gr | 84% | 39,697 psi | 64% | 2812 fps | 95.7% |
| ReloadSwiss RS 60 | 30.4 gr | 82% | 30,690 psi | 49% | 2592 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 41,989 psi | 68% | 2858 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 40,741 psi | 66% | 2697 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 35,201 psi | 57% | 2585 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 86% | 34,853 psi | 56% | 2638 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,529 psi | 77% | 2854 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,071 psi | 58% | 2657 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 33,214 psi | 54% | 2559 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,963 psi | 76% | 2802 fps | 98.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,676 psi | 80% | 2890 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 38,566 psi | 62% | 2743 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,311 psi | 76% | 2808 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,149 psi | 70% | 2766 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,172 psi | 58% | 2638 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,783 psi | 63% | 2612 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,778 psi | 51% | 2467 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 42,308 psi | 68% | 2772 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 38,189 psi | 62% | 2615 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 37,043 psi | 60% | 2648 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 36,100 psi | 58% | 2651 fps | 95.8% |
| Somchem S365 | <<locked>> | 92% | 31,357 psi | 51% | 2615 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 43,947 psi | 71% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,827 psi | 63% | 2618 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,084 psi | 55% | 2589 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 34,940 psi | 56% | 2585 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 30,081 psi | 49% | 2477 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 42,105 psi | 68% | 2795 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 39,537 psi | 64% | 2690 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 33,547 psi | 54% | 2566 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 98% | 43,729 psi | 71% | 2848 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,433 psi | 57% | 2612 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 38,348 psi | 62% | 2726 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,230 psi | 57% | 2635 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 | Sierra Tipped GameKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,146 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,146 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 1:8.5 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, ReloadSwiss RS 60 rank at the top here: for 6 mm GT with the .243 | 90gr | Sierra Tipped GameKing 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.