Load Specifications
Bullet Manufacturer:ShellHouse Castings
Bullet Weight:95 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:1:12.0
Load data in caliber 6 mm XC with .243 | 95gr | ShellHouse Castings SP Hard Cast bullet and 103 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% | 56,869 psi | 89% | 2959 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,158 psi | 86% | 2986 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,578 psi | 86% | 2972 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,811 psi | 87% | 3041 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 55,985 psi | 88% | 2986 fps | 96.8% |
| Accurate 4064 | <<locked>> | 92% | 54,665 psi | 86% | 3022 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 3110 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 55,941 psi | 88% | 3064 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 57,406 psi | 90% | 3069 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,172 psi | 86% | 3018 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,767 psi | 87% | 2987 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,898 psi | 89% | 3127 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,188 psi | 88% | 3196 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,116 psi | 90% | 3088 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,217 psi | 88% | 2960 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,259 psi | 85% | 3056 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,172 psi | 86% | 3126 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,491 psi | 85% | 3161 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,956 psi | 59% | 2816 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,033 psi | 67% | 2987 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,159 psi | 88% | 3084 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 53,708 psi | 84% | 3043 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,186 psi | 85% | 3012 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,159 psi | 90% | 3003 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,215 psi | 85% | 3041 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,724 psi | 89% | 3153 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 55,405 psi | 87% | 3002 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,926 psi | 86% | 3058 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 56,840 psi | 89% | 3145 fps | 97.9% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 57,043 psi | 89% | 3097 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 88% | 56,507 psi | 89% | 3075 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,922 psi | 78% | 2988 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,202 psi | 88% | 3110 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,782 psi | 87% | 3154 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 55% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,174 psi | 90% | 3068 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 54,824 psi | 86% | 3033 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,941 psi | 88% | 3038 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 94% | 55,448 psi | 87% | 3007 fps | 97.6% |
| IMR 4198 | <<locked>> | 82% | 56,594 psi | 89% | 2919 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,766 psi | 86% | 3041 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,623 psi | 89% | 3054 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,645 psi | 75% | 2942 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 55,680 psi | 87% | 3090 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 55,172 psi | 86% | 3017 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,766 psi | 86% | 2992 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,811 psi | 87% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,608 psi | 87% | 2990 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 56,333 psi | 88% | 3044 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,361 psi | 87% | 3039 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3077 fps | 98% |
| Norma 201 | <<locked>> | 88% | 54,230 psi | 85% | 3001 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,114 psi | 86% | 3007 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,884 psi | 89% | 3097 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 55,695 psi | 87% | 3105 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 54,041 psi | 85% | 3069 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,607 psi | 86% | 3098 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 55,593 psi | 87% | 3037 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,361 psi | 87% | 3057 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,043 psi | 88% | 3018 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,592 psi | 56% | 1902 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,549 psi | 85% | 2995 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,883 psi | 88% | 3049 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,578 psi | 86% | 3123 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,578 psi | 86% | 3167 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3137 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 3177 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 54,868 psi | 86% | 2981 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,766 psi | 86% | 3001 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,217 psi | 90% | 3090 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,186 psi | 85% | 3012 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,361 psi | 87% | 3039 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,811 psi | 87% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,333 psi | 88% | 3044 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,478 psi | 89% | 3077 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,985 psi | 88% | 3107 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,725 psi | 90% | 2992 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,624 psi | 90% | 3069 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,491 psi | 85% | 3034 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,652 psi | 89% | 2951 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,695 psi | 89% | 2944 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,550 psi | 89% | 2994 fps | 97.6% |
| Somchem S321 | <<locked>> | 84% | 56,289 psi | 88% | 3048 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,332 psi | 87% | 2939 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,290 psi | 90% | 3060 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 54,201 psi | 85% | 3036 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,140 psi | 79% | 3044 fps | 100% |
| Unknown powder | <<locked>> | 98% | 55,767 psi | 87% | 3115 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 84% | 54,955 psi | 86% | 2894 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,999 psi | 88% | 2926 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,621 psi | 86% | 2966 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,926 psi | 86% | 2977 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,782 psi | 89% | 3088 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 54,998 psi | 86% | 3024 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,839 psi | 86% | 3007 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,637 psi | 89% | 3134 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,945 psi | 66% | 2896 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,085 psi | 85% | 3026 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,260 psi | 88% | 3075 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,840 psi | 89% | 3145 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,084 psi | 53% | 2794 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,130 psi | 88% | 3070 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% | 46,847 psi | 73% | 2808 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,314 psi | 80% | 2930 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,479 psi | 60% | 2703 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,744 psi | 70% | 2861 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 49,008 psi | 77% | 2867 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 36,463 psi | 57% | 2694 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 35,462 psi | 56% | 2726 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,134 psi | 68% | 2833 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,579 psi | 57% | 2667 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,382 psi | 71% | 2848 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,484 psi | 71% | 2835 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,287 psi | 84% | 3068 fps | 100% |
| Alliant Power Pro 2000-MR | 35.5 gr | 80% | 39,378 psi | 62% | 2859 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,129 psi | 57% | 2690 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,692 psi | 83% | 2908 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,798 psi | 61% | 2757 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,216 psi | 57% | 2757 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,864 psi | 48% | 2635 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 30,806 psi | 48% | 2632 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 39,204 psi | 61% | 2912 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,438 psi | 67% | 2833 fps | 97.6% |
| Bofors RP3 | <<locked>> | 80% | 35,389 psi | 55% | 2686 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 47,703 psi | 75% | 2896 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,195 psi | 74% | 2839 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,106 psi | 69% | 2867 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,052 psi | 77% | 3022 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 48,240 psi | 76% | 2889 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,289 psi | 57% | 2687 fps | 95% |
| Hodgdon H414 | <<locked>> | 90% | 45,687 psi | 72% | 2945 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 96% | 50,299 psi | 79% | 2982 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 43,555 psi | 68% | 2845 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,748 psi | 48% | 2577 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,159 psi | 58% | 2753 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 94% | 48,211 psi | 76% | 3017 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,875 psi | 41% | 1658 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,711 psi | 61% | 2723 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 39,349 psi | 62% | 2767 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,940 psi | 56% | 2648 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,064 psi | 72% | 2837 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 53,505 psi | 84% | 2875 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 48,312 psi | 76% | 2930 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,702 psi | 73% | 2877 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 35,462 psi | 56% | 2709 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,755 psi | 62% | 2790 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 45,382 psi | 71% | 2847 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 50,966 psi | 80% | 2934 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,872 psi | 66% | 2805 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,424 psi | 68% | 2772 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,087 psi | 60% | 2708 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 40,132 psi | 63% | 2750 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 43,526 psi | 68% | 2842 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 41,974 psi | 66% | 2780 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 42,627 psi | 67% | 2796 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,159 psi | 60% | 2743 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 36,085 psi | 57% | 2736 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,971 psi | 60% | 2760 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 40,799 psi | 64% | 2850 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 45,310 psi | 71% | 2849 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,875 psi | 70% | 2873 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,298 psi | 77% | 2904 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,034 psi | 41% | 1695 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,242 psi | 80% | 2941 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,525 psi | 67% | 2801 fps | 95.2% |
| ReloadSwiss RS 52 | 34.4 gr | 80% | 41,017 psi | 64% | 2868 fps | 97.8% |
| ReloadSwiss RS 60 | 34.9 gr | 80% | 33,025 psi | 52% | 2712 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,665 psi | 56% | 2753 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,624 psi | 61% | 2831 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 45,368 psi | 71% | 2821 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,755 psi | 62% | 2726 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 33,257 psi | 52% | 2625 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 92% | 47,703 psi | 75% | 2896 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,132 psi | 63% | 2750 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,872 psi | 66% | 2805 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,087 psi | 60% | 2708 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 43,526 psi | 68% | 2841 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,563 psi | 54% | 2682 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,085 psi | 85% | 2940 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,207 psi | 68% | 2815 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,814 psi | 66% | 2800 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,671 psi | 68% | 2742 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,143 psi | 57% | 2594 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,759 psi | 72% | 2817 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,936 psi | 77% | 2929 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,163 psi | 68% | 2741 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,163 psi | 68% | 2817 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 34,185 psi | 54% | 2635 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 28,021 psi | 44% | 2554 fps | 95.7% |
| Unknown powder | <<locked>> | 86% | 37,014 psi | 58% | 2747 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 48,385 psi | 76% | 2796 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,249 psi | 65% | 2689 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,421 psi | 62% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,842 psi | 62% | 2719 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 28,921 psi | 45% | 2474 fps | 96.4% |
| Vihtavuori N160 | <<locked>> | 86% | 37,275 psi | 58% | 2727 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 47,906 psi | 75% | 2906 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,407 psi | 62% | 2734 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 37,507 psi | 59% | 2764 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,156 psi | 52% | 2715 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,850 psi | 48% | 2542 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 48,689 psi | 76% | 2955 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 45,687 psi | 72% | 2945 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,951 psi | 49% | 2714 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,851 psi | 81% | 3001 fps | 99.9% |
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 103 powders for 6 mm XC loaded with the .243 | 95gr | ShellHouse Castings SP Hard Cast. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,196 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:12.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 6 mm XC with the .243 | 95gr | ShellHouse Castings SP Hard Cast 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.