Load Specifications
Load data in caliber 6 mm XC with .243 | 85gr | Barnes Solid BT bullet and 100 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, ReloadSwiss RS 60 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>> | 86% | 56,782 psi | 89% | 3120 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,448 psi | 87% | 3150 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,361 psi | 87% | 3140 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,290 psi | 90% | 3212 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 55,056 psi | 86% | 3186 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,288 psi | 87% | 3268 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 56,057 psi | 88% | 3225 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 57,043 psi | 89% | 3219 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,897 psi | 86% | 3169 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 55,593 psi | 87% | 3153 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,826 psi | 89% | 3291 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,753 psi | 87% | 3350 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,768 psi | 89% | 3238 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,811 psi | 89% | 3241 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,333 psi | 88% | 3127 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,508 psi | 90% | 3268 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 3264 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,288 psi | 85% | 3314 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,666 psi | 59% | 2949 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,014 psi | 88% | 3238 fps | 99.1% |
| Bofors RP3 | <<locked>> | 94% | 57,566 psi | 90% | 3261 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,682 psi | 90% | 3219 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,536 psi | 89% | 3153 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,128 psi | 85% | 3199 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,173 psi | 88% | 3307 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 82% | 55,303 psi | 87% | 3166 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,666 psi | 89% | 3196 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,187 psi | 86% | 3215 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 98% | 54,418 psi | 85% | 3258 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 88% | 56,594 psi | 89% | 3235 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,863 psi | 77% | 3127 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,970 psi | 88% | 3271 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,535 psi | 87% | 3294 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,114 psi | 55% | 1975 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,462 psi | 85% | 3182 fps | 99.7% |
| IMR 3031 | <<locked>> | 88% | 56,275 psi | 88% | 3222 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,275 psi | 88% | 3199 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,521 psi | 89% | 3173 fps | 96.8% |
| IMR 4198 | <<locked>> | 82% | 56,072 psi | 88% | 3081 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,288 psi | 85% | 3182 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,057 psi | 88% | 3196 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,098 psi | 82% | 3196 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 55,216 psi | 87% | 3241 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 54,897 psi | 86% | 3169 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 55,317 psi | 87% | 3156 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,506 psi | 87% | 3196 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,376 psi | 87% | 3140 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 56,057 psi | 88% | 3196 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,477 psi | 87% | 3189 fps | 97.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3225 fps | 97% |
| Norma 201 | <<locked>> | 88% | 54,476 psi | 85% | 3159 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 55,317 psi | 87% | 3173 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,666 psi | 89% | 3251 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 54,114 psi | 85% | 3248 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 92% | 57,479 psi | 90% | 3281 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,171 psi | 83% | 3241 fps | 97.1% |
| Ramshot TAC | <<locked>> | 86% | 55,317 psi | 87% | 3182 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,071 psi | 86% | 3209 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,014 psi | 88% | 3169 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 56% | 2021 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,462 psi | 85% | 3153 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,405 psi | 87% | 3189 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,186 psi | 85% | 3278 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,679 psi | 84% | 3314 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 3284 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 3317 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 55,811 psi | 87% | 3153 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,955 psi | 86% | 3156 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 57,406 psi | 90% | 3251 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 57,682 psi | 90% | 3219 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,477 psi | 87% | 3189 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,506 psi | 87% | 3196 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,057 psi | 88% | 3196 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3225 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,622 psi | 87% | 3258 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,392 psi | 90% | 3156 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,348 psi | 90% | 3219 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,302 psi | 85% | 3186 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,231 psi | 88% | 3104 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,579 psi | 89% | 3100 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,043 psi | 88% | 3136 fps | 96.6% |
| Somchem S321 | <<locked>> | 84% | 56,304 psi | 88% | 3205 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,376 psi | 87% | 3097 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,174 psi | 90% | 3212 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 57,479 psi | 90% | 3245 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,370 psi | 76% | 3192 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 56,072 psi | 88% | 3068 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,362 psi | 88% | 3087 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,549 psi | 85% | 3127 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,637 psi | 87% | 3143 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,767 psi | 87% | 3169 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,985 psi | 89% | 3255 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 55,434 psi | 87% | 3173 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,595 psi | 90% | 3196 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 3255 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,901 psi | 64% | 3038 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3228 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,143 psi | 86% | 3219 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,418 psi | 85% | 3258 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,070 psi | 85% | 3192 fps | 99.7% |
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% | 47,065 psi | 74% | 2966 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,488 psi | 81% | 3084 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,900 psi | 63% | 2871 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,746 psi | 73% | 3038 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,724 psi | 59% | 2858 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 38,638 psi | 61% | 2936 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 43,323 psi | 68% | 2976 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 36,898 psi | 58% | 2805 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,397 psi | 71% | 2995 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 45,498 psi | 71% | 2992 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,055 psi | 83% | 3225 fps | 99.7% |
| Alliant Power Pro 2000-MR | 36.8 gr | 80% | 39,479 psi | 62% | 2995 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,874 psi | 69% | 2992 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,550 psi | 57% | 2831 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,040 psi | 83% | 3074 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,102 psi | 61% | 2897 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,653 psi | 61% | 2949 fps | 95.3% |
| Alliant Reloder-17 | 37.1 gr | 82% | 33,605 psi | 53% | 2838 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 35,563 psi | 56% | 2890 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,438 psi | 67% | 2972 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 36,013 psi | 56% | 2831 fps | 97% |
| Bofors RP7 | <<locked>> | 96% | 54,404 psi | 85% | 3163 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,282 psi | 74% | 2989 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,338 psi | 69% | 3015 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,646 psi | 76% | 3169 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 52,054 psi | 82% | 3114 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,069 psi | 83% | 3136 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 42,090 psi | 66% | 2956 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 96% | 50,865 psi | 80% | 3189 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 43,729 psi | 69% | 2992 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 33,286 psi | 52% | 2769 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,871 psi | 62% | 2956 fps | 98% |
| Hodgdon Superformance | <<locked>> | 96% | 51,445 psi | 81% | 3219 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 41% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,032 psi | 66% | 2940 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 43,424 psi | 68% | 2999 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,711 psi | 61% | 2848 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,024 psi | 78% | 3054 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 53,171 psi | 83% | 3035 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 51,184 psi | 80% | 3123 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,574 psi | 78% | 3074 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 39,827 psi | 62% | 2946 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 40,059 psi | 63% | 2933 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,397 psi | 71% | 2995 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 51,358 psi | 80% | 3091 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,511 psi | 67% | 2963 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 43,613 psi | 68% | 2917 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 38,667 psi | 61% | 2854 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 43,294 psi | 68% | 2953 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 49,719 psi | 78% | 3104 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,641 psi | 67% | 2933 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 42,917 psi | 67% | 2946 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 38,493 psi | 60% | 2887 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 38,899 psi | 61% | 2940 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 38,101 psi | 60% | 2897 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 46,543 psi | 73% | 3110 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 45,368 psi | 71% | 2989 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,918 psi | 70% | 3018 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,979 psi | 77% | 3045 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,658 psi | 42% | 1814 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,966 psi | 80% | 3094 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,617 psi | 76% | 3064 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,799 psi | 64% | 3009 fps | 96.7% |
| ReloadSwiss RS 60 | 36.2 gr | 80% | 33,489 psi | 52% | 2851 fps | 97.8% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,278 psi | 65% | 3018 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,440 psi | 70% | 3100 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 46,485 psi | 73% | 2989 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,553 psi | 64% | 2881 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 33,721 psi | 53% | 2762 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 96% | 54,404 psi | 85% | 3163 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,294 psi | 68% | 2953 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,511 psi | 67% | 2963 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 38,667 psi | 61% | 2854 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 49,719 psi | 78% | 3104 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,722 psi | 54% | 2815 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,592 psi | 84% | 3097 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,555 psi | 68% | 2959 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,785 psi | 65% | 2940 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,772 psi | 69% | 2887 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,303 psi | 57% | 2733 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 49,197 psi | 77% | 3018 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 49,023 psi | 77% | 3081 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 43,642 psi | 68% | 2894 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,221 psi | 68% | 2959 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 34,867 psi | 55% | 2779 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 30,545 psi | 48% | 2753 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 49,414 psi | 77% | 2966 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,034 psi | 69% | 2887 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,668 psi | 62% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,350 psi | 63% | 2867 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 32,938 psi | 52% | 2707 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 40,640 psi | 64% | 2943 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 45,571 psi | 71% | 2992 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 39,117 psi | 61% | 2858 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 40,219 psi | 63% | 2943 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 96% | 35,810 psi | 56% | 2913 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,605 psi | 53% | 2736 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 44,991 psi | 71% | 3038 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 51,198 psi | 80% | 3199 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,350 psi | 65% | 2946 fps | 98% |
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 113 powders for 6 mm XC loaded with the .243 | 85gr | Barnes Solid BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,350 fps; across all powders the maximum-charge window runs from 1,975 fps to 3,350 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 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 85.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 6 mm XC with the .243 | 85gr | Barnes Solid BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.