Load Specifications
Bullet Manufacturer:Fox Bullets
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:1:8.5
Load data in caliber 6 mm GT with .243 | 100gr | Fox Classic Hunter bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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>> | 86% | 53,824 psi | 87% | 2746 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,637 psi | 90% | 2815 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,926 psi | 89% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,911 psi | 87% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,390 psi | 89% | 2802 fps | 96% |
| Accurate 4064 | <<locked>> | 94% | 54,723 psi | 88% | 2848 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,633 psi | 82% | 2864 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 82% | 56,086 psi | 90% | 2730 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,941 psi | 90% | 2884 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 53,809 psi | 87% | 2831 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,187 psi | 89% | 2838 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,564 psi | 90% | 2818 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,519 psi | 86% | 2894 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,767 psi | 90% | 3002 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,185 psi | 86% | 2851 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,229 psi | 86% | 2746 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,737 psi | 87% | 2871 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,632 psi | 80% | 2874 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,838 psi | 87% | 2969 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,027 psi | 56% | 2592 fps | 96.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,390 psi | 89% | 2726 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,359 psi | 84% | 2844 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 53,592 psi | 86% | 2867 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 54,143 psi | 87% | 2825 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,766 psi | 87% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,534 psi | 88% | 2871 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,533 psi | 85% | 2907 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 52,678 psi | 85% | 2789 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,505 psi | 86% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,056 psi | 89% | 2877 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,867 psi | 87% | 2913 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 53,156 psi | 86% | 2844 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,469 psi | 73% | 2749 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,709 psi | 90% | 2927 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,071 psi | 89% | 2949 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 57% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,418 psi | 88% | 2848 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 52,881 psi | 85% | 2835 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,287 psi | 86% | 2815 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 53,417 psi | 86% | 2789 fps | 96.5% |
| IMR 4198 | <<locked>> | 82% | 53,751 psi | 87% | 2710 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 52,707 psi | 85% | 2805 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,790 psi | 77% | 2802 fps | 98.3% |
| IMR 4895 | <<locked>> | 92% | 55,158 psi | 89% | 2904 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 55,187 psi | 89% | 2838 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,680 psi | 90% | 2828 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,564 psi | 90% | 2861 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 52,910 psi | 85% | 2766 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 55,927 psi | 90% | 2858 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,158 psi | 89% | 2851 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,576 psi | 85% | 2831 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 54,665 psi | 88% | 2828 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,201 psi | 89% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,895 psi | 85% | 2858 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 50,067 psi | 81% | 2858 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 53,621 psi | 86% | 2887 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,023 psi | 79% | 2841 fps | 96.7% |
| Ramshot TAC | <<locked>> | 88% | 55,970 psi | 90% | 2858 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,303 psi | 89% | 2877 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,924 psi | 85% | 2789 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1768 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,984 psi | 89% | 2822 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,535 psi | 90% | 2858 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,186 psi | 87% | 2940 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,432 psi | 86% | 2969 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,227 psi | 81% | 2884 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,807 psi | 82% | 2907 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 56,086 psi | 90% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,434 psi | 89% | 2831 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 53,461 psi | 86% | 2858 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 54,143 psi | 87% | 2825 fps | 96.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,158 psi | 89% | 2851 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,564 psi | 90% | 2861 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,927 psi | 90% | 2858 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,576 psi | 85% | 2831 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,636 psi | 88% | 2792 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,376 psi | 89% | 2920 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,259 psi | 88% | 2769 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,983 psi | 87% | 2828 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,636 psi | 88% | 2858 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,345 psi | 86% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,026 psi | 86% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,156 psi | 84% | 2753 fps | 96.3% |
| Somchem S321 | <<locked>> | 84% | 53,142 psi | 86% | 2825 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,724 psi | 90% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,461 psi | 86% | 2825 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 53,824 psi | 87% | 2854 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,686 psi | 72% | 2805 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 53,374 psi | 86% | 2700 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,417 psi | 86% | 2717 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,766 psi | 88% | 2799 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,898 psi | 90% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,535 psi | 90% | 2835 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2858 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 88% | 56,057 psi | 90% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,722 psi | 87% | 2805 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,459 psi | 83% | 2854 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,521 psi | 61% | 2671 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,679 psi | 87% | 2841 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 55,492 psi | 90% | 2887 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 53,867 psi | 87% | 2913 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,404 psi | 88% | 2864 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% | 44,425 psi | 72% | 2605 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,675 psi | 79% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,318 psi | 60% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,685 psi | 70% | 2667 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 51,619 psi | 83% | 2740 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 35,259 psi | 57% | 2513 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 35,578 psi | 57% | 2579 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 52,721 psi | 85% | 2684 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,075 psi | 66% | 2625 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,766 psi | 56% | 2467 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,105 psi | 70% | 2638 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 42,786 psi | 69% | 2635 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,154 psi | 81% | 2838 fps | 99.6% |
| Alliant Power Pro 2000-MR | 30.2 gr | 80% | 36,912 psi | 60% | 2628 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,156 psi | 55% | 2490 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,386 psi | 81% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,898 psi | 60% | 2552 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,419 psi | 59% | 2595 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,502 psi | 51% | 2497 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,938 psi | 53% | 2536 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,808 psi | 84% | 2677 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,827 psi | 64% | 2615 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 33,634 psi | 54% | 2490 fps | 96.9% |
| Bofors RP7 | <<locked>> | 96% | 50,821 psi | 82% | 2772 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,773 psi | 72% | 2625 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,336 psi | 67% | 2651 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,339 psi | 73% | 2785 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 48,921 psi | 79% | 2733 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,850 psi | 80% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 39,392 psi | 64% | 2598 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 46,978 psi | 76% | 2799 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 41,408 psi | 67% | 2635 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,256 psi | 50% | 2438 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,014 psi | 60% | 2592 fps | 97.9% |
| Hodgdon Superformance | <<locked>> | 98% | 51,198 psi | 83% | 2884 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,165 psi | 42% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,784 psi | 64% | 2585 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 40,495 psi | 65% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,448 psi | 59% | 2500 fps | 96.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,297 psi | 76% | 2684 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 50,821 psi | 82% | 2667 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,603 psi | 80% | 2756 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 36,840 psi | 59% | 2589 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,768 psi | 61% | 2585 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 43,105 psi | 70% | 2638 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 48,254 psi | 78% | 2717 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 39,523 psi | 64% | 2598 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,408 psi | 67% | 2562 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,376 psi | 59% | 2510 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 43,149 psi | 70% | 2644 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 46,412 psi | 75% | 2726 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 40,335 psi | 65% | 2582 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 40,277 psi | 65% | 2589 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,289 psi | 59% | 2543 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 36,303 psi | 59% | 2585 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,534 psi | 57% | 2546 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 43,308 psi | 70% | 2733 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 42,946 psi | 69% | 2631 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,090 psi | 68% | 2651 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,557 psi | 75% | 2684 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,136 psi | 42% | 1575 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,109 psi | 78% | 2720 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,759 psi | 74% | 2694 fps | 95.5% |
| ReloadSwiss RS 52 | 29.3 gr | 80% | 38,145 psi | 62% | 2648 fps | 96.6% |
| ReloadSwiss RS 60 | 29.8 gr | 80% | 31,517 psi | 51% | 2510 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,087 psi | 61% | 2654 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,394 psi | 67% | 2720 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 44,251 psi | 71% | 2631 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,406 psi | 62% | 2533 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,691 psi | 51% | 2434 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 96% | 50,821 psi | 82% | 2772 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,149 psi | 70% | 2644 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,523 psi | 64% | 2598 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,376 psi | 59% | 2510 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 46,412 psi | 75% | 2726 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,836 psi | 82% | 2736 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,648 psi | 53% | 2480 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,894 psi | 82% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,843 psi | 66% | 2598 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,508 psi | 64% | 2589 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,597 psi | 67% | 2539 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,330 psi | 55% | 2405 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,834 psi | 79% | 2700 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 46,166 psi | 74% | 2710 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,423 psi | 67% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,582 psi | 65% | 2602 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 32,764 psi | 53% | 2448 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 28,398 psi | 46% | 2418 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 47,036 psi | 76% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,785 psi | 67% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,260 psi | 60% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,276 psi | 62% | 2530 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,067 psi | 50% | 2385 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 37,898 psi | 61% | 2585 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,033 psi | 69% | 2631 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,738 psi | 59% | 2513 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,231 psi | 60% | 2585 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 35,172 psi | 57% | 2615 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,676 psi | 51% | 2408 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,235 psi | 68% | 2674 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 47,398 psi | 76% | 2805 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,696 psi | 62% | 2592 fps | 97.9% |
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 102 powders for 6 mm GT loaded with the .243 | 100gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,729 fps to 3,002 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 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 100.0 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-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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 6 mm GT with the .243 | 100gr | Fox Classic Hunter 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.