Load Specifications
Load data in caliber 6 mm XC with .243 | 70gr | Speer TNT bullet and 85 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 52 and ReloadSwiss RS 60.
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>> | 90% | 57,740 psi | 90% | 3435 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 57,479 psi | 90% | 3540 fps | 98.1% |
| Accurate 2460 | <<locked>> | 86% | 56,173 psi | 88% | 3451 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 55,477 psi | 87% | 3442 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,201 psi | 85% | 3455 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 54,868 psi | 86% | 3478 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 57,159 psi | 90% | 3376 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 57,551 psi | 90% | 3406 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,797 psi | 89% | 3520 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 96% | 54,215 psi | 85% | 3445 fps | 97.7% |
| ADI AR 2219 | <<locked>> | 82% | 54,201 psi | 85% | 3445 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,956 psi | 88% | 3474 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 90% | 55,738 psi | 87% | 3468 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 57,334 psi | 90% | 3602 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,565 psi | 89% | 3638 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,464 psi | 90% | 3537 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 57,014 psi | 89% | 3533 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 86% | 57,377 psi | 90% | 3451 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,534 psi | 85% | 3494 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 3593 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,608 psi | 89% | 3360 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,869 psi | 89% | 3527 fps | 97.8% |
| Bofors RP3 | <<locked>> | 96% | 54,041 psi | 85% | 3484 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,563 psi | 86% | 3402 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 55,056 psi | 86% | 3497 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,768 psi | 89% | 3606 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 86% | 56,666 psi | 89% | 3488 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,273 psi | 85% | 3448 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,753 psi | 87% | 3494 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 92% | 57,319 psi | 90% | 3537 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,989 psi | 67% | 3258 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,115 psi | 88% | 3560 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,403 psi | 54% | 2169 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,434 psi | 87% | 3478 fps | 98.9% |
| IMR 3031 | <<locked>> | 92% | 56,376 psi | 88% | 3533 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 57,130 psi | 90% | 3491 fps | 98.4% |
| IMR 4198 | <<locked>> | 86% | 57,377 psi | 90% | 3409 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 55,956 psi | 88% | 3540 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 90% | 55,956 psi | 88% | 3474 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 86% | 56,333 psi | 88% | 3458 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 92% | 55,970 psi | 88% | 3494 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,855 psi | 89% | 3442 fps | 98.7% |
| Lovex S062 | <<locked>> | 96% | 56,608 psi | 89% | 3491 fps | 99.5% |
| Norma 200 | <<locked>> | 82% | 57,261 psi | 90% | 3419 fps | 100% |
| Norma 201 | <<locked>> | 92% | 55,376 psi | 87% | 3458 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 55,724 psi | 87% | 3471 fps | 100% |
| Norma 203B | <<locked>> | 96% | 57,334 psi | 90% | 3547 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 94% | 54,201 psi | 85% | 3504 fps | 98.2% |
| Ramshot TAC | <<locked>> | 90% | 56,782 psi | 89% | 3474 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,796 psi | 87% | 3501 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 57,334 psi | 90% | 3468 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,722 psi | 54% | 2218 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,738 psi | 87% | 3461 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,288 psi | 85% | 3566 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,491 psi | 85% | 3612 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 56,275 psi | 88% | 3455 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,840 psi | 88% | 3455 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 3530 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,970 psi | 88% | 3494 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,608 psi | 89% | 3491 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,724 psi | 87% | 3425 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,695 psi | 89% | 3094 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,665 psi | 86% | 3455 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 56,014 psi | 88% | 3543 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,621 psi | 86% | 3419 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,824 psi | 86% | 3442 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,158 psi | 86% | 3478 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 57,624 psi | 90% | 3415 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 57,363 psi | 90% | 3399 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 57,653 psi | 90% | 3514 fps | 99.7% |
| Somchem S335 | <<locked>> | 92% | 56,507 psi | 89% | 3402 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,143 psi | 85% | 3438 fps | 98.2% |
| Somchem S355 | <<locked>> | 98% | 54,389 psi | 85% | 3471 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,047 psi | 66% | 3314 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 88% | 57,159 psi | 90% | 3383 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 57,479 psi | 90% | 3399 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,781 psi | 86% | 3432 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,318 psi | 88% | 3445 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 3455 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,603 psi | 78% | 3386 fps | 96% |
| Vihtavuori N530 | <<locked>> | 90% | 56,536 psi | 89% | 3471 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 94% | 54,795 psi | 86% | 3435 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,184 psi | 80% | 3376 fps | 98.4% |
| Winchester 748 | <<locked>> | 90% | 56,130 psi | 88% | 3527 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,984 psi | 86% | 3488 fps | 98.9% |
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% | 41,959 psi | 66% | 3143 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,722 psi | 84% | 3468 fps | 97.4% |
| Accurate 2460 | <<locked>> | 80% | 45,730 psi | 72% | 3255 fps | 99.4% |
| Accurate 2495 | <<locked>> | 80% | 34,621 psi | 54% | 3015 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 41,060 psi | 64% | 3186 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 32,663 psi | 51% | 2979 fps | 97% |
| Accurate LT-30 | <<locked>> | 80% | 50,546 psi | 79% | 3264 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,908 psi | 80% | 3287 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 41,379 psi | 65% | 3192 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 90% | 44,976 psi | 70% | 3255 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 50,647 psi | 79% | 3383 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,741 psi | 64% | 3153 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 39,639 psi | 62% | 3173 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,152 psi | 74% | 3396 fps | 97.5% |
| Alliant Power Pro 2000-MR | 41.6 gr | 88% | 46,064 psi | 72% | 3409 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,189 psi | 61% | 3143 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 38,914 psi | 61% | 3146 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,645 psi | 75% | 3281 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 44,831 psi | 70% | 3291 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,568 psi | 65% | 3297 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,748 psi | 78% | 3245 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 46,224 psi | 72% | 3314 fps | 95.5% |
| Bofors RP3 | <<locked>> | 86% | 38,334 psi | 60% | 3143 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,612 psi | 67% | 3156 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,015 psi | 61% | 3156 fps | 96.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,830 psi | 67% | 3310 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 46,253 psi | 72% | 3297 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 80% | 47,297 psi | 74% | 3317 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 92% | 48,791 psi | 76% | 3360 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 39,044 psi | 61% | 3140 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 40,190 psi | 63% | 3189 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 37,420 psi | 59% | 3146 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,440 psi | 40% | 1942 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 39,914 psi | 63% | 3146 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 37,855 psi | 59% | 3156 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 44,599 psi | 70% | 3241 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 47,906 psi | 75% | 3248 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 40,234 psi | 63% | 3196 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 40,741 psi | 64% | 3153 fps | 96.6% |
| Lovex D073.5 | <<locked>> | 80% | 45,585 psi | 71% | 3255 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 80% | 36,999 psi | 58% | 3094 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 41,930 psi | 66% | 3133 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 36,550 psi | 57% | 3054 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 53,606 psi | 84% | 3360 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,898 psi | 59% | 3077 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 37,942 psi | 59% | 3100 fps | 98.2% |
| Norma 203B | <<locked>> | 86% | 41,292 psi | 65% | 3209 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 41,089 psi | 64% | 3222 fps | 95% |
| Ramshot TAC | <<locked>> | 88% | 53,316 psi | 84% | 3409 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,496 psi | 67% | 3222 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,295 psi | 69% | 3205 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,846 psi | 41% | 1991 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,832 psi | 72% | 3271 fps | 98.9% |
| ReloadSwiss RS 52 | 39.4 gr | 86% | 44,063 psi | 69% | 3350 fps | 95.4% |
| ReloadSwiss RS 60 | 39.1 gr | 84% | 33,939 psi | 53% | 3091 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 41,640 psi | 65% | 3159 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 80% | 36,042 psi | 56% | 3018 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 88% | 38,537 psi | 60% | 3140 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,999 psi | 58% | 3094 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 36,550 psi | 57% | 3054 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,443 psi | 76% | 3284 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,925 psi | 85% | 3054 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,213 psi | 80% | 3392 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,757 psi | 67% | 3271 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,993 psi | 75% | 3297 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 51,285 psi | 80% | 3376 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,656 psi | 67% | 3219 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,378 psi | 62% | 3054 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,329 psi | 51% | 2877 fps | 97.6% |
| Somchem S321 | <<locked>> | 80% | 43,932 psi | 69% | 3245 fps | 97.7% |
| Somchem S335 | <<locked>> | 80% | 39,073 psi | 61% | 3058 fps | 99% |
| Somchem S341 | <<locked>> | 82% | 41,046 psi | 64% | 3163 fps | 95.1% |
| Somchem S355 | <<locked>> | 88% | 39,682 psi | 62% | 3153 fps | 95.4% |
| Somchem S365 | <<locked>> | 96% | 36,796 psi | 58% | 3169 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 44,614 psi | 70% | 3163 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,465 psi | 62% | 3061 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 34,751 psi | 54% | 3018 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 35,911 psi | 56% | 3022 fps | 98% |
| Vihtavuori N150 | <<locked>> | 86% | 35,331 psi | 55% | 3012 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 98% | 46,369 psi | 73% | 3320 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,451 psi | 63% | 3140 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 34,461 psi | 54% | 2989 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 39,044 psi | 61% | 3104 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 39,537 psi | 62% | 3182 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 38,957 psi | 61% | 3143 fps | 95.3% |
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 110 powders for 6 mm XC loaded with the .243 | 70gr | Speer TNT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,638 fps; across all powders the maximum-charge window runs from 2,169 fps to 3,638 fps. Accurate 4350 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 70.0 gr projectile in 0.243" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, ReloadSwiss RS 60 rank at the top here: for 6 mm XC with the .243 | 70gr | Speer TNT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Bofors RP7, Hodgdon H414 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.