Load Specifications
Bullet Manufacturer:Nosler
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:1:10.0
Load data in caliber 6 mm GT with .243 | 100gr | Nosler Partition 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 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% | 53,084 psi | 86% | 2753 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,027 psi | 89% | 2828 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,868 psi | 88% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,243 psi | 86% | 2838 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,433 psi | 88% | 2815 fps | 96.3% |
| Accurate 4064 | <<locked>> | 92% | 54,607 psi | 88% | 2864 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,476 psi | 88% | 2943 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 88% | 55,666 psi | 90% | 2900 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 53,330 psi | 86% | 2848 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,491 psi | 88% | 2851 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,317 psi | 89% | 2828 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,969 psi | 89% | 3012 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 52,852 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,086 psi | 90% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,447 psi | 86% | 2887 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,388 psi | 84% | 2946 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,272 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,420 psi | 60% | 2674 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,495 psi | 67% | 2822 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,419 psi | 89% | 2913 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 53,635 psi | 87% | 2887 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,737 psi | 87% | 2848 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,127 psi | 86% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,708 psi | 87% | 2877 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,666 psi | 90% | 2976 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,259 psi | 89% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,389 psi | 88% | 2890 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 53,809 psi | 87% | 2936 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 96% | 54,868 psi | 88% | 2904 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 52,547 psi | 85% | 2858 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,704 psi | 79% | 2825 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,187 psi | 89% | 2940 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,607 psi | 88% | 2969 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,186 psi | 57% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,027 psi | 87% | 2861 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 56,043 psi | 90% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,504 psi | 85% | 2828 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,837 psi | 85% | 2805 fps | 96.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,940 psi | 87% | 2871 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,927 psi | 90% | 2884 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,242 psi | 83% | 2877 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 54,795 psi | 88% | 2917 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 54,491 psi | 88% | 2851 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,911 psi | 89% | 2838 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,245 psi | 89% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,303 psi | 89% | 2828 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,550 psi | 90% | 2874 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,708 psi | 88% | 2871 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 2907 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 54,462 psi | 88% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,607 psi | 88% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,620 psi | 85% | 2874 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 53,534 psi | 86% | 2933 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 90% | 52,997 psi | 85% | 2897 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,344 psi | 84% | 2923 fps | 97.8% |
| Ramshot TAC | <<locked>> | 86% | 55,172 psi | 89% | 2871 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,259 psi | 88% | 2884 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,593 psi | 90% | 2851 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,824 psi | 58% | 1798 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,954 psi | 87% | 2831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,056 psi | 89% | 2877 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,998 psi | 87% | 2956 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,476 psi | 86% | 2992 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,056 psi | 87% | 2966 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,954 psi | 87% | 2989 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 55,230 psi | 89% | 2825 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,679 psi | 88% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 52,997 psi | 85% | 2867 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 53,737 psi | 87% | 2848 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,708 psi | 88% | 2871 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,245 psi | 89% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,550 psi | 90% | 2874 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 2907 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,100 psi | 89% | 2936 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,374 psi | 86% | 2844 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,143 psi | 87% | 2871 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,043 psi | 90% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,956 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,347 psi | 89% | 2825 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 55,999 psi | 90% | 2887 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,390 psi | 89% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,939 psi | 85% | 2838 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 53,853 psi | 87% | 2874 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,935 psi | 77% | 2881 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,840 psi | 90% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,953 psi | 85% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,302 psi | 88% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,463 psi | 89% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,187 psi | 89% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,460 psi | 85% | 2874 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 55,216 psi | 89% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,635 psi | 87% | 2825 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,143 psi | 89% | 2933 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,248 psi | 65% | 2746 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,011 psi | 86% | 2854 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,737 psi | 88% | 2897 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,809 psi | 87% | 2936 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,344 psi | 54% | 2651 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,853 psi | 87% | 2881 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% | 47,036 psi | 76% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,430 psi | 83% | 2776 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,465 psi | 64% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,340 psi | 75% | 2733 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 50,937 psi | 82% | 2759 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 37,333 psi | 60% | 2569 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,897 psi | 58% | 2602 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 43,279 psi | 70% | 2687 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,753 psi | 59% | 2533 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,310 psi | 73% | 2697 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 45,281 psi | 73% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | 31.9 gr | 80% | 39,015 psi | 63% | 2703 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,260 psi | 58% | 2556 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,823 psi | 85% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,001 psi | 63% | 2618 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,143 psi | 58% | 2612 fps | 95.6% |
| Alliant Reloder-17 | 31.5 gr | 80% | 31,386 psi | 51% | 2513 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,198 psi | 50% | 2510 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,696 psi | 62% | 2756 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,453 psi | 68% | 2690 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 35,781 psi | 58% | 2556 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 47,355 psi | 76% | 2736 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,978 psi | 76% | 2687 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,787 psi | 71% | 2713 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,457 psi | 78% | 2861 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 51,967 psi | 84% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,564 psi | 59% | 2556 fps | 95% |
| Hodgdon H414 | <<locked>> | 92% | 44,150 psi | 71% | 2766 fps | 95% |
| Hodgdon H4350 | <<locked>> | 94% | 51,314 psi | 83% | 2844 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,642 psi | 70% | 2700 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,169 psi | 50% | 2454 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,421 psi | 64% | 2664 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 47,558 psi | 77% | 2848 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 42% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,901 psi | 68% | 2651 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 43,163 psi | 70% | 2697 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,580 psi | 62% | 2569 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,659 psi | 75% | 2697 fps | 95.5% |
| IMR 4350 | <<locked>> | 96% | 47,558 psi | 77% | 2762 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,296 psi | 75% | 2720 fps | 95.3% |
| IMR 4831 | <<locked>> | 88% | 34,795 psi | 56% | 2556 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 39,958 psi | 64% | 2651 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 45,310 psi | 73% | 2697 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 51,329 psi | 83% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,163 psi | 68% | 2667 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,497 psi | 70% | 2628 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 38,566 psi | 62% | 2575 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 40,553 psi | 65% | 2615 fps | 95.4% |
| Lovex S070 | <<locked>> | 94% | 46,006 psi | 74% | 2743 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 42,235 psi | 68% | 2638 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 42,627 psi | 69% | 2651 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,392 psi | 62% | 2608 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 36,114 psi | 58% | 2598 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,666 psi | 61% | 2615 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 43,134 psi | 70% | 2753 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 45,049 psi | 73% | 2697 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,440 psi | 72% | 2717 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,834 psi | 79% | 2746 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,571 psi | 43% | 1604 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,850 psi | 82% | 2782 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,221 psi | 68% | 2651 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,843 psi | 66% | 2723 fps | 97.7% |
| ReloadSwiss RS 60 | 31.5 gr | 80% | 33,446 psi | 54% | 2585 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,781 psi | 58% | 2618 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,060 psi | 66% | 2740 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 46,325 psi | 75% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,292 psi | 65% | 2592 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 33,808 psi | 55% | 2503 fps | 97% |
| Rottweil R 907 | <<locked>> | 92% | 47,355 psi | 76% | 2736 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,553 psi | 65% | 2615 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,163 psi | 68% | 2667 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,566 psi | 62% | 2575 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 46,006 psi | 74% | 2743 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,751 psi | 56% | 2549 fps | 96.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,497 psi | 70% | 2674 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,858 psi | 68% | 2657 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,947 psi | 71% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,448 psi | 59% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,658 psi | 74% | 2667 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 49,052 psi | 79% | 2779 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 43,221 psi | 70% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,221 psi | 70% | 2671 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 34,505 psi | 56% | 2507 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 28,427 psi | 46% | 2438 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 49,588 psi | 80% | 2664 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,193 psi | 71% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,798 psi | 64% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,437 psi | 65% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,982 psi | 53% | 2448 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 35,389 psi | 57% | 2546 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,266 psi | 73% | 2694 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,711 psi | 62% | 2572 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 37,246 psi | 60% | 2605 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 33,156 psi | 53% | 2582 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,314 psi | 51% | 2421 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 44,889 psi | 72% | 2740 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,150 psi | 71% | 2766 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,212 psi | 50% | 2582 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,075 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 | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,012 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 1:10.0 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 | 100gr | Nosler Partition 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.