Load Specifications
Load data in caliber 6 mm XC with .243 | 95gr | Barnes TSX bullet and 95 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, Hodgdon Superformance 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% | 55,550 psi | 87% | 2940 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,259 psi | 85% | 2966 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,188 psi | 88% | 3035 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,435 psi | 90% | 3025 fps | 97.3% |
| Accurate 4064 | <<locked>> | 92% | 57,725 psi | 90% | 3064 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,766 psi | 86% | 3110 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 54,839 psi | 86% | 3048 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 56,391 psi | 88% | 3058 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,377 psi | 90% | 3051 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,839 psi | 86% | 2972 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,752 psi | 86% | 3176 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,333 psi | 88% | 3077 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,536 psi | 89% | 3094 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,956 psi | 88% | 3169 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,450 psi | 90% | 3209 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,842 psi | 62% | 2877 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,715 psi | 70% | 3048 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,868 psi | 86% | 3064 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 56,681 psi | 89% | 3087 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,652 psi | 89% | 3058 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,506 psi | 87% | 2982 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,971 psi | 89% | 3084 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,521 psi | 87% | 3136 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 54,201 psi | 85% | 3048 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 98% | 57,522 psi | 90% | 3159 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 54,636 psi | 86% | 3064 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 55,390 psi | 87% | 3058 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,054 psi | 82% | 3031 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,405 psi | 87% | 3100 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,853 psi | 86% | 3143 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 56% | 1873 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,072 psi | 89% | 3068 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,637 psi | 87% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,521 psi | 87% | 3035 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,695 psi | 87% | 3015 fps | 97.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,450 psi | 90% | 3091 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,477 psi | 87% | 3041 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3094 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 54,592 psi | 86% | 3074 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 57,377 psi | 90% | 3051 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,911 psi | 86% | 3028 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,360 psi | 85% | 2972 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 55,274 psi | 87% | 3028 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,578 psi | 86% | 3028 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 55,579 psi | 87% | 3068 fps | 98% |
| Norma 201 | <<locked>> | 88% | 57,159 psi | 90% | 3048 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,070 psi | 85% | 2992 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,709 psi | 87% | 3081 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 57,203 psi | 90% | 3146 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 56,579 psi | 89% | 3110 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,231 psi | 88% | 3146 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 54,302 psi | 85% | 3018 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,751 psi | 84% | 3035 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,839 psi | 86% | 2999 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 56% | 1913 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,811 psi | 89% | 3028 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,534 psi | 85% | 3028 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,493 psi | 90% | 3173 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,116 psi | 90% | 3209 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,650 psi | 86% | 3133 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,128 psi | 85% | 3159 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 57,725 psi | 90% | 3022 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,725 psi | 90% | 3048 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,536 psi | 89% | 3081 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,652 psi | 89% | 3058 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,578 psi | 86% | 3028 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,911 psi | 86% | 3028 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,274 psi | 87% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,579 psi | 87% | 3068 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,129 psi | 86% | 3094 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,347 psi | 88% | 3054 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,014 psi | 89% | 3074 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,405 psi | 87% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,724 psi | 87% | 2933 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,969 psi | 86% | 2982 fps | 97.6% |
| Somchem S321 | <<locked>> | 82% | 55,187 psi | 86% | 3035 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,331 psi | 85% | 2927 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,927 psi | 88% | 3041 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 56,956 psi | 89% | 3081 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,808 psi | 81% | 3097 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,708 psi | 86% | 2890 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,724 psi | 87% | 2920 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,667 psi | 90% | 3009 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,940 psi | 86% | 2976 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,868 psi | 86% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,521 psi | 89% | 3094 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 54,520 psi | 85% | 3002 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,623 psi | 89% | 3022 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,405 psi | 87% | 3097 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,874 psi | 69% | 2959 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,608 psi | 89% | 3068 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,665 psi | 86% | 3051 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,099 psi | 85% | 3104 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,534 psi | 56% | 2867 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,971 psi | 89% | 3084 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% | 49,110 psi | 77% | 2844 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,263 psi | 65% | 2753 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,892 psi | 77% | 2923 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,891 psi | 73% | 2844 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 39,073 psi | 61% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,491 psi | 56% | 2723 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 45,440 psi | 71% | 2881 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 38,595 psi | 60% | 2717 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,558 psi | 75% | 2887 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 48,124 psi | 75% | 2874 fps | 100% |
| Alliant Power Pro 2000-MR | 36.3 gr | 80% | 41,379 psi | 65% | 2907 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,087 psi | 60% | 2733 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,060 psi | 64% | 2808 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,868 psi | 56% | 2746 fps | 95.8% |
| Alliant Reloder-17 | 35.8 gr | 80% | 33,069 psi | 52% | 2700 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,734 psi | 48% | 2631 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,711 psi | 61% | 2907 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,831 psi | 70% | 2884 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 37,869 psi | 59% | 2740 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,862 psi | 73% | 2884 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,327 psi | 77% | 2881 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,412 psi | 73% | 2907 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,822 psi | 81% | 3074 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 38,551 psi | 60% | 2743 fps | 96% |
| Hodgdon H414 | <<locked>> | 90% | 43,845 psi | 69% | 2910 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 51,082 psi | 80% | 3002 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,861 psi | 72% | 2890 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,676 psi | 48% | 2575 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,916 psi | 66% | 2858 fps | 99.3% |
| Hodgdon Superformance | 43.5 gr | 92% | 47,326 psi | 74% | 3002 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 41% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,092 psi | 69% | 2841 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,469 psi | 71% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,509 psi | 63% | 2756 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,919 psi | 72% | 2838 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 47,239 psi | 74% | 2913 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,803 psi | 72% | 2864 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 34,505 psi | 54% | 2680 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,090 psi | 66% | 2841 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 47,558 psi | 75% | 2887 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,454 psi | 70% | 2854 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,455 psi | 71% | 2815 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 40,408 psi | 63% | 2759 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,798 psi | 62% | 2743 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 42,960 psi | 67% | 2831 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 44,106 psi | 69% | 2822 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 44,657 psi | 70% | 2831 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,437 psi | 63% | 2795 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 35,868 psi | 56% | 2730 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 40,074 psi | 63% | 2808 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 40,205 psi | 63% | 2838 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 47,630 psi | 75% | 2897 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,007 psi | 74% | 2913 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,372 psi | 81% | 2943 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 42% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,476 psi | 84% | 2979 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,669 psi | 65% | 2785 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,482 psi | 68% | 2920 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,230 psi | 55% | 2772 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,476 psi | 56% | 2746 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 38,014 psi | 60% | 2818 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 48,167 psi | 75% | 2871 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,192 psi | 66% | 2776 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,389 psi | 55% | 2677 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 46,862 psi | 73% | 2884 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,798 psi | 62% | 2743 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,454 psi | 70% | 2854 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,408 psi | 63% | 2759 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,960 psi | 67% | 2831 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,637 psi | 57% | 2733 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,818 psi | 72% | 2867 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,932 psi | 69% | 2844 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,585 psi | 71% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,927 psi | 59% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,904 psi | 70% | 2802 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,590 psi | 81% | 2976 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,121 psi | 71% | 2776 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,600 psi | 71% | 2867 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 36,187 psi | 57% | 2680 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 27,934 psi | 44% | 2549 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 51,488 psi | 81% | 2841 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,021 psi | 72% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,626 psi | 65% | 2756 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,337 psi | 66% | 2766 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,519 psi | 54% | 2618 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 35,244 psi | 55% | 2680 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 47,819 psi | 75% | 2887 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,712 psi | 64% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,912 psi | 58% | 2733 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 33,243 psi | 52% | 2713 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,690 psi | 48% | 2536 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 47,572 psi | 75% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 44,222 psi | 69% | 2917 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,995 psi | 49% | 2720 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,323 psi | 68% | 2844 fps | 99.2% |
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 95 powders for 6 mm XC loaded with the .243 | 95gr | Barnes TSX. Alliant Reloder-17 delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,209 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 95 of the 95 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 95.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 6 mm XC with the .243 | 95gr | Barnes TSX 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.