Load Specifications
Bullet Manufacturer:Fox Bullets
Bullet Weight:100 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:6 mm XC load data
Case Length (l3):1.901"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:49.7 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:8.5
Load data in caliber 6 mm XC with .243 | 100gr | Fox Classic Hunter bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Hodgdon Superformance.
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>> | 82% | 54,752 psi | 86% | 2841 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,421 psi | 90% | 2920 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,998 psi | 86% | 2933 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,043 psi | 88% | 2927 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,295 psi | 69% | 2822 fps | 96.9% |
| Accurate 4064 | <<locked>> | 90% | 57,348 psi | 90% | 2969 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,606 psi | 84% | 3005 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 57,072 psi | 89% | 2999 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,824 psi | 86% | 2949 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,086 psi | 88% | 2949 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,595 psi | 90% | 2920 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,377 psi | 90% | 3133 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2976 fps | 95.8% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2976 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,071 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,651 psi | 87% | 2999 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,766 psi | 86% | 3068 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,043 psi | 88% | 3104 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,032 psi | 66% | 2851 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,152 psi | 74% | 3025 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,305 psi | 90% | 3022 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,680 psi | 87% | 2989 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,767 psi | 87% | 2963 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,099 psi | 85% | 2874 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,767 psi | 87% | 2979 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,463 psi | 88% | 3002 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 96% | 56,565 psi | 89% | 3064 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 94% | 56,826 psi | 89% | 3022 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 57,711 psi | 90% | 3012 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,563 psi | 86% | 2989 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,566 psi | 90% | 3048 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,101 psi | 89% | 3104 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 56% | 1821 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,405 psi | 87% | 2959 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,447 psi | 85% | 2936 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,375 psi | 85% | 2933 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,406 psi | 90% | 2963 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 55,883 psi | 88% | 2986 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,363 psi | 90% | 2992 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 54,259 psi | 85% | 2999 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 57,101 psi | 89% | 3028 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,086 psi | 88% | 2949 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,203 psi | 90% | 2976 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,637 psi | 89% | 2927 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,418 psi | 85% | 2930 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,753 psi | 89% | 2982 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 54,621 psi | 86% | 2969 fps | 98.2% |
| Norma 201 | <<locked>> | 86% | 56,144 psi | 88% | 2946 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,739 psi | 89% | 2946 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,868 psi | 86% | 2982 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,797 psi | 89% | 3041 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 46,992 psi | 74% | 2979 fps | 96.4% |
| Norma URP | <<locked>> | 98% | 56,159 psi | 88% | 3048 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 55,492 psi | 87% | 3012 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,042 psi | 86% | 3048 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 56,521 psi | 89% | 2972 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,130 psi | 88% | 2989 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,942 psi | 89% | 2949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 57% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,652 psi | 89% | 2986 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,188 psi | 88% | 3064 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,637 psi | 87% | 3100 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,145 psi | 90% | 3091 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,289 psi | 88% | 3117 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 56,666 psi | 89% | 2920 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,695 psi | 89% | 2946 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,550 psi | 87% | 2979 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,767 psi | 87% | 2963 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,753 psi | 89% | 2982 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,203 psi | 90% | 2976 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,418 psi | 85% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,621 psi | 86% | 2969 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,377 psi | 90% | 3045 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,114 psi | 86% | 2953 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,593 psi | 87% | 2972 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,348 psi | 90% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,389 psi | 85% | 2831 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,232 psi | 90% | 2936 fps | 98.3% |
| Somchem S321 | <<locked>> | 82% | 57,566 psi | 90% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,840 psi | 89% | 2874 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,665 psi | 86% | 2940 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,767 psi | 87% | 2979 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,636 psi | 86% | 3054 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2927 fps | 96.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,855 psi | 89% | 2835 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,638 psi | 90% | 2858 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,521 psi | 89% | 2904 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,188 psi | 90% | 2920 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,493 psi | 90% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,042 psi | 86% | 2989 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,695 psi | 89% | 2949 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,361 psi | 87% | 2920 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,580 psi | 90% | 3048 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,601 psi | 73% | 2933 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,303 psi | 87% | 2969 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,695 psi | 89% | 2995 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,565 psi | 89% | 3064 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,768 psi | 59% | 2864 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,651 psi | 87% | 2979 fps | 100% |
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% | 51,474 psi | 81% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,193 psi | 69% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,300 psi | 80% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 46,122 psi | 72% | 2753 fps | 95.3% |
| Accurate 3100 | <<locked>> | 96% | 38,508 psi | 60% | 2700 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,814 psi | 66% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,228 psi | 52% | 2592 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,340 psi | 74% | 2835 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 40,495 psi | 63% | 2680 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,385 psi | 77% | 2838 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,198 psi | 79% | 2818 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,352 psi | 68% | 2877 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,573 psi | 76% | 2923 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,573 psi | 76% | 2923 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,248 psi | 63% | 2707 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,960 psi | 67% | 2769 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,301 psi | 52% | 2605 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,882 psi | 55% | 2677 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,777 psi | 48% | 2566 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,505 psi | 56% | 2753 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,876 psi | 73% | 2844 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 40,045 psi | 63% | 2710 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 46,151 psi | 72% | 2792 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,952 psi | 80% | 2825 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,689 psi | 76% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,872 psi | 64% | 2717 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 88% | 43,163 psi | 68% | 2818 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 47,036 psi | 74% | 2848 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 47,790 psi | 75% | 2848 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,601 psi | 45% | 2441 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,005 psi | 69% | 2818 fps | 99.7% |
| Hodgdon Superformance | 41.7 gr | 90% | 45,992 psi | 72% | 2904 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 42% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,818 psi | 72% | 2795 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 47,892 psi | 75% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,496 psi | 67% | 2720 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,918 psi | 70% | 2743 fps | 95.9% |
| IMR 4350 | <<locked>> | 92% | 46,340 psi | 73% | 2818 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,351 psi | 66% | 2717 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 34,389 psi | 54% | 2608 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,034 psi | 69% | 2799 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 49,385 psi | 77% | 2838 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,789 psi | 73% | 2812 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,021 psi | 74% | 2766 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 42,322 psi | 66% | 2717 fps | 99.6% |
| Lovex S065 | <<locked>> | 82% | 37,057 psi | 58% | 2605 fps | 95% |
| Lovex S070 | <<locked>> | 88% | 42,627 psi | 67% | 2749 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,427 psi | 73% | 2785 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,891 psi | 73% | 2792 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,366 psi | 66% | 2756 fps | 99% |
| Norma 204 | <<locked>> | 94% | 49,719 psi | 78% | 2920 fps | 95.1% |
| Norma MRP | <<locked>> | 98% | 43,787 psi | 69% | 2910 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 33,388 psi | 52% | 2592 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 42,134 psi | 66% | 2776 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 39,668 psi | 62% | 2749 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 49,284 psi | 77% | 2851 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,081 psi | 77% | 2874 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,345 psi | 84% | 2894 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 43% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,089 psi | 64% | 2697 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,658 psi | 72% | 2881 fps | 99.1% |
| ReloadSwiss RS 60 | 35.1 gr | 80% | 37,130 psi | 58% | 2749 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,230 psi | 55% | 2667 fps | 95.6% |
| ReloadSwiss RS 70 | 38.3 gr | 86% | 37,507 psi | 59% | 2733 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 50,676 psi | 79% | 2825 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,150 psi | 69% | 2733 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,768 psi | 59% | 2654 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 46,151 psi | 72% | 2792 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,057 psi | 58% | 2605 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,789 psi | 73% | 2812 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,322 psi | 66% | 2717 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 42,627 psi | 67% | 2749 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,566 psi | 60% | 2703 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,022 psi | 75% | 2831 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,847 psi | 72% | 2805 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,587 psi | 75% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,798 psi | 62% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,367 psi | 70% | 2717 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 53,838 psi | 84% | 2927 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,282 psi | 74% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,747 psi | 75% | 2825 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 38,348 psi | 60% | 2657 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 27,920 psi | 44% | 2480 fps | 96.4% |
| Somchem S385 | <<locked>> | 96% | 44,382 psi | 70% | 2815 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 53,548 psi | 84% | 2789 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,993 psi | 75% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,874 psi | 69% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,527 psi | 70% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,637 psi | 57% | 2592 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 34,911 psi | 55% | 2598 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 49,748 psi | 78% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,946 psi | 67% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,258 psi | 54% | 2595 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 88% | 31,357 psi | 49% | 2592 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,358 psi | 51% | 2516 fps | 97% |
| Winchester 748 | <<locked>> | 80% | 49,748 psi | 78% | 2887 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,497 psi | 68% | 2825 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,051 psi | 46% | 2589 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,353 psi | 71% | 2808 fps | 99.6% |
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 99 powders for 6 mm XC loaded with the .243 | 100gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,133 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,133 fps. Accurate 3100 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 (440 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 3100, Alliant Power Pro Varmint, Alliant Power Pro Varmint 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, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 6 mm XC 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.