Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:105 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 | 105gr | Nosler Custom Competition 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 70, 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>> | 82% | 55,869 psi | 88% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,347 psi | 87% | 2818 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,463 psi | 88% | 2881 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,493 psi | 90% | 2881 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,730 psi | 72% | 2785 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 55,463 psi | 87% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,521 psi | 87% | 2966 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,056 psi | 86% | 2897 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,130 psi | 88% | 2897 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,243 psi | 83% | 2940 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,348 psi | 90% | 2894 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,376 psi | 87% | 2818 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,129 psi | 86% | 3025 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,939 psi | 83% | 2936 fps | 96.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,939 psi | 83% | 2936 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,536 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,087 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,536 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,012 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2927 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,192 psi | 68% | 2812 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,058 psi | 60% | 2707 fps | 96% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,733 psi | 76% | 2989 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,071 psi | 86% | 2917 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 57,334 psi | 90% | 2940 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,855 psi | 89% | 2913 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,550 psi | 87% | 2825 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,276 psi | 90% | 2930 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,549 psi | 85% | 2904 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 54,520 psi | 85% | 2963 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 92% | 54,998 psi | 86% | 2923 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 55,622 psi | 87% | 2907 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,449 psi | 88% | 2943 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,361 psi | 87% | 2943 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,752 psi | 86% | 2999 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 56% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,695 psi | 89% | 2907 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,260 psi | 88% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,622 psi | 87% | 2884 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,317 psi | 87% | 2864 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 57,566 psi | 90% | 2946 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,463 psi | 87% | 2894 fps | 98.4% |
| IMR 4831 | <<locked>> | 98% | 56,101 psi | 88% | 2959 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 55,114 psi | 86% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,348 psi | 90% | 2894 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,245 psi | 87% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,462 psi | 85% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,724 psi | 87% | 2877 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,926 psi | 86% | 2887 fps | 99.3% |
| Lovex S070 | <<locked>> | 96% | 56,275 psi | 88% | 2930 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 57,421 psi | 90% | 2894 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,665 psi | 86% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,304 psi | 88% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,694 psi | 86% | 2943 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 48,370 psi | 76% | 2943 fps | 97.3% |
| Norma URP | <<locked>> | 96% | 54,491 psi | 85% | 2953 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 57,174 psi | 90% | 2966 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,521 psi | 89% | 3002 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 57,522 psi | 90% | 2920 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,595 psi | 90% | 2940 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,492 psi | 57% | 1818 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,404 psi | 85% | 2881 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,302 psi | 85% | 2963 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,493 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,230 psi | 87% | 2989 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,288 psi | 85% | 3018 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 54,853 psi | 86% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,621 psi | 86% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,203 psi | 90% | 2933 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 2917 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 2910 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 56,855 psi | 89% | 2913 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,926 psi | 86% | 2887 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,245 psi | 87% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,724 psi | 87% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,275 psi | 88% | 2930 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,216 psi | 87% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,594 psi | 89% | 2904 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,000 psi | 89% | 2920 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,940 psi | 86% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,680 psi | 87% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,288 psi | 87% | 2844 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,662 psi | 79% | 2904 fps | 96.4% |
| Somchem S335 | <<locked>> | 84% | 54,766 psi | 86% | 2776 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,130 psi | 88% | 2894 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,290 psi | 90% | 2930 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,333 psi | 88% | 3002 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,011 psi | 82% | 2894 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 84% | 55,332 psi | 87% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,389 psi | 85% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,158 psi | 86% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,158 psi | 86% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,826 psi | 89% | 2946 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 82% | 54,549 psi | 85% | 2844 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,782 psi | 89% | 2867 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,970 psi | 88% | 2956 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,037 psi | 75% | 2890 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,695 psi | 89% | 2920 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,723 psi | 86% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,520 psi | 85% | 2963 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,914 psi | 61% | 2838 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,188 psi | 90% | 2933 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% | 52,475 psi | 82% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,716 psi | 72% | 2674 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,098 psi | 83% | 2835 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,135 psi | 69% | 2651 fps | 95.3% |
| Accurate 3100 | <<locked>> | 94% | 37,478 psi | 59% | 2618 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 43,236 psi | 68% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,111 psi | 50% | 2503 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 48,747 psi | 76% | 2792 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,350 psi | 65% | 2638 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 47,007 psi | 74% | 2825 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,821 psi | 80% | 2795 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,851 psi | 81% | 2769 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,570 psi | 70% | 2835 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,789 psi | 73% | 2825 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,789 psi | 73% | 2825 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,234 psi | 65% | 2661 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,353 psi | 70% | 2730 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,068 psi | 50% | 2513 fps | 95.4% |
| Alliant Reloder-17 | 34.7 gr | 80% | 35,897 psi | 56% | 2644 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,166 psi | 72% | 2815 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,094 psi | 44% | 2428 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,853 psi | 56% | 2651 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,345 psi | 54% | 2664 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,109 psi | 75% | 2802 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,133 psi | 64% | 2667 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 44,527 psi | 70% | 2697 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,359 psi | 82% | 2779 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,966 psi | 78% | 2818 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,887 psi | 66% | 2674 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 41,829 psi | 66% | 2726 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 45,136 psi | 71% | 2746 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 49,255 psi | 77% | 2802 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,559 psi | 46% | 2415 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,571 psi | 71% | 2779 fps | 99.9% |
| Hodgdon Superformance | 40.3 gr | 88% | 44,034 psi | 69% | 2802 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 42% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,181 psi | 74% | 2753 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,458 psi | 78% | 2789 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,468 psi | 68% | 2674 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,832 psi | 72% | 2697 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 42,192 psi | 66% | 2674 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,770 psi | 64% | 2621 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 31,183 psi | 49% | 2464 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 45,484 psi | 71% | 2762 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 50,821 psi | 80% | 2795 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,399 psi | 76% | 2769 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,312 psi | 76% | 2723 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,627 psi | 68% | 2677 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,940 psi | 56% | 2520 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 41,205 psi | 65% | 2657 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,805 psi | 75% | 2743 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,935 psi | 75% | 2740 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,743 psi | 69% | 2720 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 47,819 psi | 75% | 2822 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 42,293 psi | 66% | 2818 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,227 psi | 51% | 2503 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,352 psi | 68% | 2733 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 38,189 psi | 60% | 2657 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 50,792 psi | 80% | 2812 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,314 psi | 79% | 2825 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 43% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,105 psi | 66% | 2657 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,355 psi | 74% | 2844 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,159 psi | 60% | 2707 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,910 psi | 53% | 2575 fps | 95.7% |
| ReloadSwiss RS 70 | 37 gr | 84% | 36,071 psi | 57% | 2641 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 51,634 psi | 81% | 2772 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,440 psi | 71% | 2690 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,812 psi | 61% | 2615 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 98% | 51,605 psi | 81% | 2854 fps | 95% |
| Rottweil R 905 | <<locked>> | 98% | 47,935 psi | 75% | 2854 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 86% | 44,527 psi | 70% | 2697 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,940 psi | 56% | 2520 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,399 psi | 76% | 2769 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,627 psi | 68% | 2677 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 41,205 psi | 65% | 2657 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,943 psi | 63% | 2667 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,284 psi | 77% | 2789 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,297 psi | 74% | 2762 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,834 psi | 77% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,944 psi | 64% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,900 psi | 63% | 2566 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,471 psi | 74% | 2844 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 48,602 psi | 76% | 2684 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,965 psi | 77% | 2779 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 39,610 psi | 62% | 2621 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 28,964 psi | 45% | 2457 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 42,786 psi | 67% | 2723 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 49,284 psi | 77% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,310 psi | 71% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,542 psi | 71% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,550 psi | 59% | 2549 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,678 psi | 53% | 2510 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 50,821 psi | 80% | 2789 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,990 psi | 69% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,156 psi | 52% | 2507 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 30,458 psi | 48% | 2507 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,199 psi | 52% | 2480 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 51,024 psi | 80% | 2838 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,829 psi | 66% | 2726 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,065 psi | 44% | 2503 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,920 psi | 74% | 2769 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 102 powders for 6 mm XC loaded with the .243 | 105gr | Nosler Custom Competition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,051 fps. Accurate 3100 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 6 mm XC with the .243 | 105gr | Nosler Custom Competition 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.