Load Specifications
Bullet:.243 | 100gr | MEN SP
Bullet Manufacturer:MEN
Bullet Weight:100 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:6 mm GT load data
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:1:11.0
Load data in caliber 6 mm GT with .243 | 100gr | MEN SP bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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.
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% | 53,200 psi | 86% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,694 psi | 88% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,998 psi | 89% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,924 psi | 85% | 2835 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,578 psi | 88% | 2815 fps | 96.4% |
| Accurate 4064 | <<locked>> | 92% | 54,766 psi | 88% | 2864 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2940 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 55,332 psi | 89% | 2894 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 53,026 psi | 86% | 2841 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,607 psi | 88% | 2851 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,926 psi | 89% | 2825 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,100 psi | 89% | 3015 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,982 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,563 psi | 86% | 2887 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,518 psi | 85% | 2946 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,417 psi | 86% | 2986 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,202 psi | 60% | 2667 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,263 psi | 67% | 2815 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,085 psi | 89% | 2910 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 53,272 psi | 86% | 2881 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,867 psi | 87% | 2848 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,229 psi | 86% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,838 psi | 87% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,782 psi | 90% | 2979 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,376 psi | 89% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,520 psi | 88% | 2894 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 53,505 psi | 86% | 2933 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 96% | 54,563 psi | 88% | 2897 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 55,840 psi | 90% | 2907 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,414 psi | 78% | 2818 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,317 psi | 89% | 2940 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,781 psi | 88% | 2976 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,230 psi | 57% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 53,708 psi | 87% | 2858 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 55,709 psi | 90% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,825 psi | 90% | 2877 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,086 psi | 90% | 2854 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 55,883 psi | 90% | 2756 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,621 psi | 86% | 2864 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,637 psi | 90% | 2881 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,387 psi | 83% | 2877 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 54,926 psi | 89% | 2920 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 54,607 psi | 88% | 2851 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,592 psi | 88% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,911 psi | 89% | 2871 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,984 psi | 89% | 2822 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 55,680 psi | 90% | 2874 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,926 psi | 89% | 2874 fps | 98.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,579 psi | 90% | 2904 fps | 97.6% |
| Norma 201 | <<locked>> | 88% | 54,143 psi | 87% | 2841 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,723 psi | 88% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,941 psi | 90% | 2923 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 53,229 psi | 86% | 2927 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 90% | 53,127 psi | 86% | 2900 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,069 psi | 84% | 2917 fps | 97.7% |
| Ramshot TAC | <<locked>> | 86% | 54,882 psi | 89% | 2864 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,375 psi | 88% | 2887 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,724 psi | 90% | 2854 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 58% | 1798 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,056 psi | 87% | 2831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,752 psi | 88% | 2871 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,664 psi | 87% | 2949 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,171 psi | 86% | 2986 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,737 psi | 87% | 2959 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2992 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 55,376 psi | 89% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,810 psi | 88% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,142 psi | 86% | 2871 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 53,867 psi | 87% | 2848 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,926 psi | 89% | 2874 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,911 psi | 89% | 2871 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,680 psi | 90% | 2874 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,579 psi | 90% | 2904 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,781 psi | 88% | 2930 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,055 psi | 86% | 2838 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,824 psi | 87% | 2867 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,709 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,072 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,535 psi | 90% | 2828 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 55,680 psi | 90% | 2881 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,056 psi | 89% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,620 psi | 85% | 2831 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 53,534 psi | 86% | 2871 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,645 psi | 77% | 2877 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,535 psi | 90% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,825 psi | 90% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,433 psi | 88% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,129 psi | 89% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,868 psi | 88% | 2848 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2923 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 86% | 54,868 psi | 88% | 2848 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,330 psi | 86% | 2818 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,839 psi | 88% | 2930 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,364 psi | 65% | 2746 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,156 psi | 86% | 2858 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,853 psi | 88% | 2897 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,983 psi | 87% | 2940 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,199 psi | 54% | 2644 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,548 psi | 86% | 2874 fps | 99.9% |
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% | 46,746 psi | 75% | 2657 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,140 psi | 82% | 2769 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,566 psi | 64% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,456 psi | 75% | 2733 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,068 psi | 82% | 2759 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 37,391 psi | 60% | 2572 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,621 psi | 57% | 2595 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,975 psi | 69% | 2680 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,825 psi | 59% | 2536 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,063 psi | 73% | 2694 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 45,382 psi | 73% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | 31.9 gr | 80% | 39,102 psi | 63% | 2703 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,332 psi | 59% | 2556 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,769 psi | 63% | 2612 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,216 psi | 58% | 2612 fps | 95.6% |
| Alliant Reloder-17 | 31.4 gr | 80% | 31,198 psi | 50% | 2507 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,980 psi | 50% | 2503 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,464 psi | 62% | 2749 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,177 psi | 68% | 2684 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 35,824 psi | 58% | 2559 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 47,471 psi | 77% | 2736 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,065 psi | 76% | 2687 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,888 psi | 71% | 2717 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,138 psi | 78% | 2854 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 51,619 psi | 83% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,666 psi | 59% | 2556 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 94% | 47,007 psi | 76% | 2822 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 94% | 51,430 psi | 83% | 2844 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,366 psi | 70% | 2694 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,995 psi | 50% | 2448 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,508 psi | 64% | 2664 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 47,311 psi | 76% | 2841 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 42% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,611 psi | 67% | 2644 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 42,888 psi | 69% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,653 psi | 62% | 2569 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,383 psi | 75% | 2690 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 53,055 psi | 86% | 2720 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,297 psi | 76% | 2759 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,398 psi | 75% | 2720 fps | 95.3% |
| IMR 4831 | <<locked>> | 88% | 34,592 psi | 56% | 2552 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,682 psi | 64% | 2644 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 45,063 psi | 73% | 2694 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 51,010 psi | 82% | 2779 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,264 psi | 68% | 2667 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,250 psi | 70% | 2621 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 38,290 psi | 62% | 2569 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 40,335 psi | 65% | 2608 fps | 95.3% |
| Lovex S070 | <<locked>> | 94% | 46,137 psi | 74% | 2743 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 42,337 psi | 68% | 2641 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 42,714 psi | 69% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,130 psi | 61% | 2602 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 36,201 psi | 58% | 2602 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,753 psi | 61% | 2615 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 42,888 psi | 69% | 2749 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 45,136 psi | 73% | 2697 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,541 psi | 72% | 2717 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,936 psi | 79% | 2746 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 43% | 1604 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,531 psi | 82% | 2776 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,308 psi | 68% | 2651 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,553 psi | 65% | 2717 fps | 97.6% |
| ReloadSwiss RS 60 | 31.4 gr | 80% | 33,199 psi | 54% | 2579 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,116 psi | 61% | 2674 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,176 psi | 66% | 2743 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 46,050 psi | 74% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,379 psi | 65% | 2592 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 33,591 psi | 54% | 2497 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 47,471 psi | 77% | 2736 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,335 psi | 65% | 2608 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,264 psi | 68% | 2667 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,290 psi | 62% | 2569 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 46,137 psi | 74% | 2743 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,548 psi | 56% | 2546 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,250 psi | 70% | 2667 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,597 psi | 67% | 2651 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,642 psi | 70% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,216 psi | 58% | 2461 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,411 psi | 73% | 2664 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 48,747 psi | 79% | 2772 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 43,308 psi | 70% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,931 psi | 69% | 2667 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 34,577 psi | 56% | 2510 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 28,500 psi | 46% | 2438 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 49,298 psi | 80% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,932 psi | 71% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,494 psi | 64% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,190 psi | 65% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,764 psi | 53% | 2444 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 35,476 psi | 57% | 2549 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,368 psi | 73% | 2694 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,798 psi | 63% | 2572 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 37,347 psi | 60% | 2608 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 33,199 psi | 54% | 2582 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,140 psi | 50% | 2415 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 44,585 psi | 72% | 2733 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,251 psi | 71% | 2769 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,314 psi | 51% | 2585 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,162 psi | 66% | 2657 fps | 98.7% |
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.
This overview compares 99 powders for 6 mm GT loaded with the .243 | 100gr | MEN SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,015 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.243" calls for a 1:11.0 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for 6 mm GT with the .243 | 100gr | MEN SP 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.